Method for preparing copper (ii) acetate monohydrate |
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IPC classes for russian patent Method for preparing copper (ii) acetate monohydrate (RU 2246480):
 The way to get calcium acetate / 2156757
The invention relates to the production of salts of acetic acid
The method of obtaining crystalline sodium acetate from waste products chemical products / 2024486
The invention relates to waste disposal and the simultaneous achievement of commercial products and can be used in other industries where liquid wastes with a content of acetic acid
Preparation comprising water-soluble triterpenic acid salts and method for its preparing / 2244426
Invention relates to a method for preparing the preparation comprising triterpenic acid water-soluble salts and additionally added protein-containing product and vegetable raw, the source of triterpenic acids taken in the following ratio of components, wt.-%: protein-containing product, 10-17; triterpenic acid sodium salts, 4-5, and vegetable raw, the balance. Method involves mixing triterpenic acid-containing vegetable raw with the protein-containing product taken in the ratio = (9-11):(1-2), mechanical-chemical treatment of this mixture in activator device, mixing of prepared semi-finished product with sodium carbonate or sodium hydrocarbonate taken in the ratio = (92-97):(3.5-8.3) and repeated treatment in the activator device. Method involves applying flow-type ball vibration-centrifugal or ellipse-centrifugal mills as the activator device that provide the acceleration of milling bodies up to 170-250 m/c2 and time for treatment for 1.5-3 min. Invention provides simplifying the process and the complex processing waste in lumber industry.
The method of receiving stabilizers of polyvinyl chloride / 2243243
The invention relates to petrochemical synthesis, namely the method of producing stearates of calcium, zinc, barium and cadmium are used as stabilizers in the processing of polyvinyl chloride, as well as in the manufacture of varnishes, surface-active compounds that are used as flotation agents
The method of obtaining dihydrate dioxalate (ii) ammonium / 2243206
The invention relates to the field of chemical engineering of complex compounds, in particular, to a method for dihydrate dioxalate(II) ammonium composition (NH4)2Cu(C2O4)2·2H2O, which can be used for antibacterial treatment of water in the production of high-temperature superconductors, for preparation of electrolyte copper plating, as a fungicide and copper micronutrients in agriculture, to obtain copper catalysts
 The method of obtaining salts of beta-(4-hydroxy-3,5-di-tert-butylphenyl)-propionic acid / 2243204
The invention relates to an improved process for the preparation of salts
 -(4-hydroxy-3,5-di-tert-butylphenyl)-propionic acid of the formula
which are used as stabilizers of polymers and additives to oils, where Me is a metal selected from the group of Zn, Ba, Ca, Cd, Al, Sn, Pb, Mg, Cr+3,Mn+2; n is the valence of the metal, n = 2-4  The method of obtaining salts of beta-(4-hydroxy-3,5-di-tert-butylphenyl)-propionic acid / 2239625
The invention relates to an improved process for the preparation of salts
-(4-hydroxy-3,5-di-tert-butylphenyl)-propionic acid by the interaction of the methyl ester-(4-hydroxy-3,5-di-tert-butylphenyl)-propionic acid with oxide of a metal selected from the group of CA, BA and Zn, at elevated temperature and pressure in aqueous-alcoholic medium, and the reaction is carried out at a temperature of 70-130°C. and a pressure of 3-3 .7 atmosphere in the presence of-(4-hydroxy-3,5-di-tert-butylphenyl)-propionic acid in a molar ratio of ester : oxide metal : acid 1,00:0,45-0,55 0,01 to 0,1 followed by the addition of dioctylphthalate as a solvent
The method of producing oxalate, copper (ii) / 2234494
The invention relates to an improved process for the preparation of oxalate, copper (II), which can be used as a blue pigment in the production of high-temperature superconductors, to obtain copper catalysts
The method of obtaining carboxylates of rare earth elements / 2209205
The invention relates to an improved process for the preparation of carboxylates of rare earth elements, used as polymerization catalysts, as well as in the production of CIS-1,4-homopolymers and CIS-1,4-copolymers
 The method of obtaining the oil-soluble salts of the catalytically active metals / 2208603
The invention relates to an improved process for the preparation of oil-soluble salts of catalytically active metals in the form of a pasty mass, which are used as catalysts in oxosynthesis, condensation of aldehydes, oxidation of hydrocarbons, accelerators, curing polyester resins, driers, etc
 The method of obtaining metal salts of fatty acids / 2191771
The invention relates to a method for producing metal salts of fatty acids, the so-called metal Soaps used as additives for polymer compositions
 The method of producing antiglomerular / 2190592
The invention relates to a method of producing antiglomerular based on calcium stearate, which finds application in the petrochemical industry for preparation of synthetic rubbers
Preparation comprising water-soluble triterpenic acid salts and method for its preparing / 2244426
Invention relates to a method for preparing the preparation comprising triterpenic acid water-soluble salts and additionally added protein-containing product and vegetable raw, the source of triterpenic acids taken in the following ratio of components, wt.-%: protein-containing product, 10-17; triterpenic acid sodium salts, 4-5, and vegetable raw, the balance. Method involves mixing triterpenic acid-containing vegetable raw with the protein-containing product taken in the ratio = (9-11):(1-2), mechanical-chemical treatment of this mixture in activator device, mixing of prepared semi-finished product with sodium carbonate or sodium hydrocarbonate taken in the ratio = (92-97):(3.5-8.3) and repeated treatment in the activator device. Method involves applying flow-type ball vibration-centrifugal or ellipse-centrifugal mills as the activator device that provide the acceleration of milling bodies up to 170-250 m/c2 and time for treatment for 1.5-3 min. Invention provides simplifying the process and the complex processing waste in lumber industry.
Method for preparing copper (ii) acetate monohydrate / 2246480
Invention relates to a method for preparing copper (II) acetate monohydrate that represents organic carboxylic acid salt. Copper (II) acetate monohydrate is prepared by crystallization from solution obtained by mixing acetic acid, alkaline metal acetates or ammonium with copper-containing spent solution used in etching printing boards. Method provides reducing cost of the proposed method for preparing copper (II) acetate monohydrate, retaining purity of product with simultaneous utilization of toxic waste in electronic engineering manufacture - the spent solution in etching printing boards. Also, invention provides reducing material consumptions in preparing copper (II) acetate monohydrate, expanding assortment of materials used for its preparing and utilization of toxic waste in electronic engineering manufacture. Product obtained by the proposed method can be used as pigment, fungicide and copper microfertilizer in agriculture, as catalyst in processes of polymerization, as a stabilizing agent of artificial fibers, for preparing galvanic solutions and preparing other copper compounds.
Method for preparing nickel oxalate / 2256647
Invention relates to the improved method for preparing nickel oxalate that can be used in preparing catalysts, ceramic materials and in manufacturing electric vacuum devices. Method involves preparing the reaction solution containing nickel (II) and oxalate, crystallization of product, separation of precipitate from solution and its drying. The reaction solution is prepared by mixing reagent as source of oxalate and spent solution from chemical nickel plating taken in the amount providing the mole ratio in the reaction solution nickel (II) : oxalate = 1.0:(0.8-2.8). Spent solution of chemical nickel plating contains as main components nickel (II), ligand for nickel (II), reducing agent and product of its oxidation. As spent solution of chemical nickel plating method involves using solution containing nickel (II), ligand for nickel (II), hypophosphite, phosphite as main components and pH value in the reaction solution is brought about from 2.5 to 7.5. As spent solution of chemical nickel plating method involves using solution containing nickel (II) and ligand for nickel (II) as main components. As a reducing agent method involves using substance taken among the group including hydrazine, borohydride, hydrazine borane, alkylaminoborane, dithionite, hydroxymethyl sulfinate, thiourea dioxide, product of reducing agent oxidation and pH value in the reaction solution is brought about 0.0 to 8.5. Invention provides reducing material consumptions for preparing nickel oxalate, expanded assortment of materials used for preparing nickel oxalate, utilization of manufacture waste, reduced cost of product and simultaneous utilization of the spent solution of chemical nickel plating representing toxic waste of manufacturing.
 Method for preparing copper (ii) salts with dicarboxylic acids / 2256648
Copper (II) salts with dicarboxylic acids are prepared by crystallization from reaction aqueous solution obtained by mixing reagent as source of dicarboxylic acid anion and waste from radio-electronic manufacturing - spent solution in etching printed boards. Solutions containing copper (II), ammonia or mineral acid, ammonium salts and other substances are used as the spent solution in etching printed boards. Dicarboxylic acid, dicarboxylic acid anhydride, dicarboxylic acid salt with sodium, potassium, ammonium or aqueous solutions of these substances are used as reagent representing the source of dicarboxylic acid anion. Prepared copper (II) salts can be used in manufacturing high-temperature superconductors, as fungicides and copper microfertilizers in agriculture, medicinal agents in veterinary science, for antibacterial treatment of water and in other fields. Invention provides reducing cost of products, retention of their purity, utilization of waste in radio-electronic manufacturing (spent solution in etching printed boards of different composite).
 Method of production of zinc oxalate dihydrate / 2259347
Product obtained by this method may be used as pigment for production of catalysts of synthesis of inorganic and organic substances, manufacture of ceramic articles and production of oxide and other compounds of zinc. Proposed method includes preparation of reaction solution containing zinc (II) and oxalate, crystallization of target product, separation of sediment from solution and drying the sediment; reaction solution is prepared by mixing the solution of zinc plating process and oxalate-containing reagent; use is made of used solution of zinc plating process and reaction solution containing zinc (II) and oxalate at mole ratio of 1.0: (0.8-3.0) is prepared.
 Method for preparing calcium stearate / 2259993
Invention relates to a method for preparing calcium stearate used for stabilization of plastic masses, in manufacture of paint and varnish materials, vitamin and medicinal preparations. Preparing calcium stearate is carried out by interaction of stearic acid and calcium oxide or hydroxide in the equimole ratio of reagents. The process is carried out in the solid phase under atmosphere pressure and intensive stirring without heating in the presence of zeolite of CaX type taken in the amount 6.7-16 wt.-%. Method provides simplifying technology due to a single stage process and improvement of economical indices.
 Preparing aromatic carboxylic acid ammonium salts / 2272805
Invention relates to the improved method for preparing aromatic carboxylic acid ammonium salts by reaction of aromatic carboxylic acid with ammonia in aprotonic solvent medium. Method involves carrying out the reaction in the closed vessel by continuous addition of aromatic carboxylic acid in aprotonic solvent medium and passing gaseous ammonia under condition providing maintenance of ammonia partial pressure in the range from 0.1 to 3 bars and elimination of ammonium salt suspension in aprotonic solvent. Method allows preparing ammonium salts as crystals of a definite size that exhibit narrow distribution by size.
Method for preparing neodymium organic salts (variants) / 2278107
Invention relates to the improved methods (variants) for preparing salts formed by neodymium and organic acids that are used as components on preparing metal-chelating catalysts. Method for preparing neodymium organic salts from neodymium oxide and carboxylic acid involves conversion of neodymium oxide to a water-soluble salt by heating at temperature 50-150°C with inorganic ammonium salt aqueous solution with simultaneous distillation of water and ammonia. Then carboxylic acid is converted to water-soluble ammonium salt by mixing with distilled ammonia and water. In mixing prepared aqueous solutions of inorganic neodymium salt with organic ammonium salt the neodymium organic salt and inorganic ammonium salt aqueous solution are prepared. After isolation of the end neodymium organic salt an aqueous solution of ammonium inorganic salt is recirculated to the process. Method for preparing neodymium organic salts from neodymium oxide and carboxylic acids (variant) involves conversion of neodymium oxide to water-soluble inorganic salt by heating at temperature 50-150°C with inorganic ammonium salt aqueous solution and with simultaneous distillation of water and ammonia. Then carboxylic acid and hydrocarbon solvent are added to neodymium inorganic salt aqueous solution followed by addition of distilled ammonia at intensive stirring. After ceasing the stirring the reaction mixture if separated for aqueous and organic layers. Aqueous layer representing inorganic ammonium salt solution is recirculated to the process and the end product is isolated from an organic layer representing neodymium organic salt solution in hydrocarbon solvent, or solution of the definite concentration is prepared. Proposed methods (variants) provides excluding consumption of additional reagents and creates conditions for wasteless production of neodymium organic salts from neodymium oxide and organic acids.
Method of extraction of copper (ii) from waste printed circuit board pickling solutions / 2287595
Cleaning is performed by adding to waste solution reagent containing monocarbonic acid of aromatic series or its salt, or anhydride at subsequent forming of sediment of salt of copper (II) with anion of monocarbonic acid of aromatic series.
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FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to a method for preparing copper (II) acetate monohydrate that represents organic carboxylic acid salt. Copper (II) acetate monohydrate is prepared by crystallization from solution obtained by mixing acetic acid, alkaline metal acetates or ammonium with copper-containing spent solution used in etching printing boards. Method provides reducing cost of the proposed method for preparing copper (II) acetate monohydrate, retaining purity of product with simultaneous utilization of toxic waste in electronic engineering manufacture - the spent solution in etching printing boards. Also, invention provides reducing material consumptions in preparing copper (II) acetate monohydrate, expanding assortment of materials used for its preparing and utilization of toxic waste in electronic engineering manufacture. Product obtained by the proposed method can be used as pigment, fungicide and copper microfertilizer in agriculture, as catalyst in processes of polymerization, as a stabilizing agent of artificial fibers, for preparing galvanic solutions and preparing other copper compounds. EFFECT: improved preparing method. 14 cl, 5 ex
The invention relates to the field of chemical technology of organic compounds, in particular to a method for producing acetate monohydrate, copper(II), which can be used as a pigment, fungicide and copper micronutrients in agriculture, the catalyst for the polymerization of organic substances, stabilizers, artificial fibers, for the preparation galvanic solutions, to obtain other compounds of copper. It is known that an aqueous solution of copper acetate(II) are monoclinic crystals of the monohydrate, copper acetate(II), si(CH3Soo)2·H2O (De Meester, P., Fletcher S.R., Scapski A.C. // Joumal of Chemical Society. Dalton Transactions, 1973, V.23 Supported, P.2575. Brown G.M., R. Chidambaram // Acta Crystallographica, 1973, V.B29, No. 12, P.2393). Known methods for producing acetate monohydrate, copper(II), comprising preparing an aqueous solution containing copper(II) acetate, as a result of exchange reactions between the acetates of calcium, barium or lead and copper sulfate(II), followed by the separation of precipitation of sulfates of calcium, barium or lead from solution by filtration, concentration of filtrate and crystallization of the product (Guide preparative inorganic chemistry (Ed. by Brauer G)) Of the aliens. lit., 1956, P.472. Ripen R., Cetanu I. Inorganic chemistry. Vol.2. - M.: Mir, 1972, S). These methods are based on reactions: CuSO4+is a(CH 3Soo)2+2H2About→ si(CH3Soo)2+CaSO4·2H2O↓ CuSO4+VA(CH3Soo)2→Si(CH3Soo)2+BaSO4↓ CuSO4+Pb(CH3Soo)2→Si(CH3Soo)2+PbSO4↓. The disadvantage of these methods is the need for additional costs for filtration and evaporation of the solution and also costs for reagent copper sulfate(II). Known methods for producing acetate monohydrate, copper(II), consisting in the preparation of an aqueous solution containing copper(II) and acetate by dissolving metallic copper in the presence of oxygen), copper oxide(II)hydroxide copper(II), the basic carbonate of copper(II), basic copper acetate(II) in acetic acid, followed concentrated solution by evaporation and crystallization of the product (Guide preparative inorganic chemistry (Ed. by Brauer G)) Of the aliens. lit., 1956, P.472. Ripen R., Cetanu I. Inorganic chemistry. Vol.2. - M.: Mir, 1972, S. Remy, the Rate of inorganic chemistry. Vol.2. - M.: Mir, 1974, S). These methods are based on the following reactions: Si+SN3COOH+O2→Si(CH3Soo)2·H2About SiO+2CH3COOH→ si(CH3Soo)2·H2O Si(OH)2+2CH3WITH THE H→ Si(CH3Soo)2·H2O+H2O Si(OH)2·ISSS3+SN3COOH→ si(CH3Soo)2·H2O+CO2↑+H2O Hsi(OH)2·Wuxi(CH3Soo)2·z2O+HCN3COOH→ (x+y)si(CH3Soo)2·H2O+(z+x-y)H2O The disadvantage of these methods is the need for additional cost heating solution and the cost of copper-containing reagents. Closest to the claimed method is a method of producing acetate monohydrate, copper(II), comprising preparing a reaction solution containing copper(II) acetate, crystallization of the product, separating the crystals from the solution and drying (Karyakin J.V., Angels I.I. Pure substances. - M.: Chemistry, 1974, S). The reaction solution in the prototype is prepared by adding a basic carbonate of copper(II) 11%aqueous solution of acetic acid when heated to 60°C. and then concentrated by evaporation up to 1/3 of original volume. Crystallization of the product is carried out at a cooling solution. Crystals separated from the solution by filtration under reduced pressure and dried at room temperature. The way the prototype provides clear acetate monohydrate, copper(II) with the output of the m 80-88%. The disadvantage of this method is the need for the extra cost of heating and evaporation of the reaction solution and the cost of the reagent is a basic carbonate of copper(II). In the claimed invention, the aim was to reduce material costs acetate monohydrate, copper(II) and to dispose of toxic waste production. This is achieved by a method of producing acetate monohydrate, copper(II) involves preparing a reaction solution containing copper(II) acetate, crystallization of the product, separating the crystals from the solution and drying. New this method is that the reaction solution is prepared by mixing reagent, which is the source of acetate, and electronic waste production waste solution etching of printed circuit boards, and the reaction solution establish a pH of from 0.5 to 7.0 and the molar ratio of copper(II) acetate, 1.0:(2,0-25,0). As the spent solution from the etching of printed circuit boards, it is desirable to use a solution containing copper(II)ammonia, ammonium chloride, or a solution containing copper(II)ammonia, ammonium chloride, ammonium carbonate, or a solution containing copper(II)ammonia, ammonium sulfate, or a solution containing copper(II)ammonia, ammonium sulfate, peroxodisulfate ammonium, and as a reagent, which is the source of acetate - acetic Ki the lot or acetic and hydrochloric acids. As the spent solution from the etching of printed circuit boards is also desirable to use a solution containing copper(II), hydrochloric acid, or a solution containing copper(II), hydrochloric acid, ammonium chloride, or a solution containing copper(II), sulfuric acid, peroxodisulfate ammonium, and as a reagent, which is the source of the acetate, acetic acid and sodium hydroxide or acetic acid and potassium hydroxide or acetic acid and ammonium hydroxide, or sodium acetate or potassium acetate, or ammonium acetate. As a reagent, which is the source of acetate, it is desirable to use waste product containing acetic acid or sodium acetate or potassium acetate, or ammonium acetate. Crystallization of the product are preferably at a temperature of from -5 to 60°C. The method of producing acetate monohydrate, copper(II) is preparing a reaction solution by adding acetic acid to the well-tested copper-ammonium solution etching of printed circuit boards or acetate of sodium, potassium, ammonium worked to the acid solution in the etching of printed circuit boards, adjusted (if necessary) the pH of the reaction solution, the allocation of acetate monohydrate, copper(II) in the form of a crystalline precipitate, separating the precipitate from the solution by the known methods of washing (if necessary) sludge solvent, is sosiani sediment in the air. Used solutions etching of printed circuit boards (copper-ammonia - based copper(II)ammonia, ammonium chloride, copper-alkaline - based copper(II)ammonia, ammonium chloride, ammonium carbonate, copper sulphate - based copper(II)ammonia, ammonium sulfate, peroxodisulfate - based copper(II)ammonium sulphate, peroxodisulfate ammonium, ammonia or sulfuric acid, acid - based copper(II), hydrochloric acid or copper(II), hydrochloric acid, ammonium chloride) are toxic electronic waste production and are subject to neutralization (Fedulova AA., Ustinov Y.A., Cats, H.E., Shustov VP, AVIC E.R. multilayer printed circuit boards. - M.: Radio and communication, 1990, S), which requires significant material costs. Acetic acid GOST 61-75, sodium hydroxide GOST 4328-77, sodium acetate GOST 199-78, ammonium acetate GOST 3117-78 produced by the chemical industry and have low cost. In addition, to obtain acetate monohydrate, copper(II) can be recycled food and reactive acetic acid and acetates of alkali metals or ammonium. With the addition of these reagents to waste etching solutions PCB occur following chemical reaction: [Cu(NH3)4]Cl2+2CH3COOH+2hcl+H2About→ si(CH3Soo)2·H2O+4NH4Cl/p> [Cu(NH3)4]SO4+SN3COOH+H2O→ si(CH3Soo)2·H2O+(NH4)2SO4+2CH3COOH (NH4)2[CuCl4]+2CH3COOH+2NaOH→ si(CH3Soo)2·H2O+2NH4Cl+2NaCl+H2O H2[CuCl4]+SN3The N+H2O→ si(CH3Soo)2·H2O+2CH3COOH+4NaCl. The result of the reaction solution is highlighted crystalline monohydrate, copper acetate(II). The proposed method allows to obtain the acetate monohydrate, copper(II) using available and inexpensive reagents acetic acid, sodium hydroxide, sodium acetate, ammonium acetate without using a copper-containing reagent and simultaneously dispose of waste electronic and chemical industries. To obtain acetate monohydrate, copper(II) it is desirable to use waste solutions etching of printed circuit boards containing copper(II)ammonia, ammonium chloride, ammonium sulfate, hydrochloric acid, sulfuric acid, which have a composition, for example: Copper(II) (in the form of ammonium complex) 50-120 g/l Ammonia 50-100 g/l Ammonium chloride 50-150 g/l or Copper(II) (in the form of ammonium complex) 50-120 g/l Ammonia 30-100 g/l Ammonium chloride 5-50 g/l Ammonium carbonate 20-400 g/l, or Copper(II) (in the form of Ammi is knogo complex) 60-100 g/l Ammonia 80-130 g/l Ammonium sulfate 30-100 g/l, or Copper(II) (in the form of chlorocomplexes) 80-140 g/l Hydrogen chloride 10-30 g/l Ammonium chloride 50-150 g/l To obtain acetate monohydrate, copper(II) it is desirable to install in the reaction solution, the optimum pH value. The acetate monohydrate, copper(II) soluble in water, and its solubility increases in the presence of strong acids (sulfuric, hydrochloric, nitric), so if the pH is less than 0.5, the output acetate monohydrate, copper(II) is significantly reduced. The experimental data at pH 7.0 to 9.0 acetate monohydrate, copper(II) polluted basic salts of copper(II); at pH greater 9.0 acetate monohydrate, copper(II) from solution does not fall, as the copper(II) in solution is related to the complex [Cu(NH3)4]2+. Therefore, to obtain pure acetate monohydrate, copper(II) with high yield, it is desirable to prepare the reaction solution with a pH from 0.5 to 7.0. To obtain pure acetate monohydrate, copper(II) with high yield, it is desirable to prepare a reaction solution containing copper(II) acetate in an optimal molar ratio. The experimental data from solutions in which 1.0 mol of copper(II) is less than 2.0 mol of acetate, roll the mixture of acetate monohydrate, copper(II) basic salts of copper(II). From solutions in which 1.0 mol of copper(II) is 2.0 or more mol of acetate, falls h is a simple acetate monohydrate, copper(II) with high yield of copper(II), but the yield on acetate with changing the molar ratio of copper(II) acetate is reduced, which leads to wasteful consumption of acetate. Therefore, to obtain pure acetate monohydrate, copper(II) high yield it is necessary to prepare the reaction solution containing copper(II) acetate in a molar ratio 1,0:(2,0-25,0). The solubility of the monohydrate, copper acetate(II) increases with the temperature of the solution; the solution of copper acetate(II) resistant to 66°C (Guidance preparative inorganic chemistry (Ed. by Brauer G)) Of the aliens. lit., 1956, P.472), so to increase output and receive acetate monohydrate, copper(II) without admixture of basic salts of copper(II) crystallization is carried out at a temperature of preferably from -5 to 60°C. The acetate monohydrate, copper(II) well-crystallized from aqueous solutions, the precipitate is easily deposited without forming colloidal particles, therefore, to its separation from the mother liquor can be applied to many well-known methods (e.g., filtration under normal or reduced pressure, centrifugation). In the process of filtering the precipitate is easily separated from the mother liquor. If you need a more complete removal of the substances present in the mother solution, the precipitate is washed on the filter with a suitable solvent, such as chilled water, aqueous solution of acetic acid, this is I, the acetone. The acetate monohydrate, copper(II) not oxidized by oxygen and stable in air up to 100°C. the Dried product can be carried out at ordinary temperature, or to speed up the process of drying in a current of air at ordinary temperature or when heated to a temperature of 40-80°C. Example 1. To 10.0 ml of the spent solution from the etching of printed circuit boards with copper(II) 1.5 mol/l, ammonia 3.3 mol/l, ammonium chloride and 0.2 mol/l of ammonium carbonate and 3.6 mol/l add first 10 ml of water, then with stirring, 20 ml of acetic acid, GOST 61-75 marks “h”. The solution is left to crystallize for 1 day at a temperature of 18°C. the Precipitate is filtered off on a glass filter, THEN 100, washed with acetone and dried in air at room temperature to constant weight. Yield 82%. Found, %: C - 23,9; N - 4,0; Si - 31,7. Calculated for si(CH3Soo)2·H2O, %: 24,06; N - 4,04; Si - 31,83. Example 2. To 10.0 ml of the spent solution from the etching of printed circuit boards with copper(II) 1.7 mol/l, ammonium chloride 1.5 mol/l, chloride of 0.4 mol/l with stirring, is added first to 2.9 ml of acetic acid, GOST 61-75 marks “analytical grade”, then portions of 0.5 ml of 30%solution of sodium hydroxide to achieve a pH of 3.0. The solution is left to crystallize for 1 day at a temperature of 22°C. the Precipitate is filtered off on Stekla the nom filter THEN 40 under reduced pressure, washed with 70%aqueous solution of acetic acid and dried in air at room temperature to constant weight. Yield 72%. Found, %: C - 24,2; N - 3,8; C To 31.8. Example 3. To 10.0 ml of the spent solution from the etching of printed circuit boards with copper(II) 0.96 mol/l, ammonia and 7.3 mol/l of ammonium sulfate to 0.45 mol/l is added first with 6.5 ml of water, then 17.5 ml of an 80%aqueous solution of acetic acid, THE 6-09-07-1716-95. The solution is kept for crystallization at 20 h at 20°C. the Precipitate is filtered off on a glass filter THEN 16 under reduced pressure, washed with 50%aqueous solution of acetic acid and dried in air at room temperature to constant weight. Yield 72%. Found, %: C - 24,1; N - 3,9; Si - 32,2. Example 4. To 10.0 ml of the spent solution from the etching of printed circuit boards with copper(II) 1.7 mol/l, ammonium chloride 1.5 mol/l, chloride of 0.4 mol/l with stirring was added a solution 6,94 g three-hydrate sodium acetate, GOST 199-78 mark “h” in 5.0 ml heated to 40°With water. The solution is kept for crystallization at 1.5 h at 20°C. the Precipitate is filtered off on a glass filter THEN 40 under reduced pressure, washed with chilled water and dried in air at room temperature to constant weight. Yield 88%. Found, %: C - 23, 8mm; N - 3,7; C To 31.8. Example 5. To 10.0 ml of spent Rast is ora etching of printed circuit boards with copper(II) 1.1 mol/l, ammonia 4.2 mol/l of ammonium chloride and 0.4 mol/l with stirring, add 10 ml of acetic acid, GOST 61-75 marks “chemically pure”. The solution is left to crystallize for 2 days at a temperature of 0°C. the Precipitate was washed with 70%aqueous solution of acetic acid, press on filter paper and dried in air at room temperature to constant weight. Yield 86%. Found, %: C - 23,7; N - 3,9; Si - 31,7. Obtained in examples 1-5 acetate monohydrate, copper(II) is a crystalline substance of a dark green colour, soluble in water, glycerol, dimethylformamide, dimethyl sulfoxide, slightly soluble in ethanol, acetone, acetic acid, slightly soluble in carbon tetrachloride, benzene. As seen from the above examples, the claimed method allows high yield monohydrate, copper acetate(II), exactly corresponding to the formula si(CH3Soo)2·H2O. the Reduction of material costs for the product is due to the fact that as a reagent instead of copper(II) use copper-containing waste solutions etching of printed circuit boards of different composition. Simultaneously with obtaining a valuable product cannot be disposed of toxic electronic waste production, reduce the cost of environmental protection. 1. Way to obtain is novedrate copper acetate(II), comprising preparing a reaction solution containing copper(II) acetate, crystallization of the product, separating the crystals from the solution and drying, characterized in that the reaction solution is prepared by mixing reagent, which is the source of acetate, and the extract solution etching of printed circuit boards, and the reaction solution establish a pH of from 0.5 to 7.0 and a molar ratio of copper(II) acetate, equal 1,0 : (2,0-25,0). 2. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II)ammonia, ammonium chloride. 3. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II)ammonia, ammonium chloride, ammonium carbonate. 4. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II)ammonia, ammonium sulfate. 5. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II)ammonia, ammonium sulfate, peroxodisulfate ammonium. 6. The method according to claims 1 to 5, characterized in that, as a reagent, which is the source of acetate using acetic acid. 7. The method according to claims 1 to 5, characterized in that, as is eagent, which is the source of acetate using acetic acid and hydrochloric acid. 8. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II)hydrochloric acid. 9. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II), hydrochloric acid, ammonium chloride. 10. The method according to claim 1, characterized in that the spent solution from the etching of printed circuit boards using a solution containing copper(II), sulfuric acid, ammonium sulfate, peroxodisulfate ammonium. 11. The method according to claim 1,8-10, characterized in that, as a reagent, which is the source of acetate using acetic acid and sodium hydroxide or acetic acid and potassium hydroxide or acetic acid and ammonium hydroxide. 12. The method according to claim 1,8-10, characterized in that, as a reagent, which is the source of acetate using sodium acetate or potassium acetate, or ammonium acetate. 13. The method according to claims 1 to 5, 8-10, characterized in that, as a reagent, which is the source of acetate, using a waste product containing acetic acid or sodium acetate or potassium acetate, or ammonium acetate. 14. The method according to claim 1, characterized in that the crystallization of the product is carried out at a temperature of from is 5 to 60° C.
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