Method for preparing manganese (ii) acetate |
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IPC classes for russian patent Method for preparing manganese (ii) acetate (RU 2294921):
Manganese (iii) acetylacetonate preparation method / 2277529
Invention relates to preparation of manganese (III) acetylacetonate, which can be used as catalyst as well as vinyl monomer polymerization initiator. Method is implemented in aqueous medium with ammonium acetylacetonate freshly prepared by mixing acetylacetone with aqueous ammonia solution. Hydrogen peroxide is used as oxidant and sodium bicarbonate is additionally introduced into reaction mixture. Following consecutive operations are carried out: reaction of manganese (II) chloride tetrahydraye with sodium bicarbonate; separating thus formed manganese (II) bicarbonate in the form of paste; adding ammonia acetylacetonate and then hydrogen peroxide aqueous solution to the paste; and recovering manganese (III) acetylacetonate with yield 95%.
 Derivatives of aminothiols / 2265608
Invention relates to agents for regulation (maintaining or suppression) of physical working ability and/or adaptation to different variants represented by solvated complex compounds of the general formula (I): Katm+[L1 qEL2]Ann- x p.Solv (I) wherein L1 means aminothiols of the formula: R1NHCH(R2)(CH2)1-2SR3 wherein R1 means hydrogen atom (H), (C1-C20)-alkyl or RCO; R means (C1-C19)-alkyl; R2 means H or carboxyl; R3 means H, (C1-C20)-alkyl, (C2-C20)-alkenyl or benzyl; q = 1, 2 or 3; L2 means halogen atom, water and/or organic ligand. For example, bis-(N-acetyl-L-cysteinato)aquozinc (II) diheptahydrate suppresses physical working ability and in the dose 50 mg/kg increases reviving time of mice by 6 times and cats - by 2.8fold under conditions of acute hypoxia with hypercapnia, and increases reviving time of mice by 4 times under conditions of acute hypobaric hypoxia. Under the same conditions the known antihypoxic agents amtizol, acizol or mexidol are inactive or less active significantly by their activity. Bis-(N-acetyl-L-cysteinato)-ferrous (II) pentahydrate is more active as compared with the known antihypoxic agents and protects experimental animals in 4 variants of hypoxia. Bis-(N-acetyl-L-cysteinato)zinc (II) sulfate octahydrate is similar to enumerated compounds by its antihypoxic activity.
 Performancecriteria connection, the retrieval method (variants) and a pharmaceutical preparation containing these compounds / 2242477
The invention relates to the objects of the invention characterized in the claims, i.e
 A method of obtaining a metal-containing derivatives of bacteriochlorophyll, new metilirovannye derivatives bacteriochlorophyll, the pharmaceutical composition / 2193038
The invention relates to a new method of obtaining metallizovannyh derived bacteriochlorophyll for use in the methods of photodynamic therapy (PDT) and in vivo diagnostics and photodynamic destruction of viruses and microorganisms in vitro, as well as some new metallosalen derived bacteriochlorophyll
 The method of producing cyclopentanecarbonyl manganese and device for its implementation / 2128182
The invention relates to the synthesis of ORGANOMETALLIC compounds, namely, to obtain cyclopentanetetracarboxylic manganese, which can be used as antiknock motor fuels
 The coordination compound of manganese ii shows the properties of a growth stimulator cotton / 2093517
The invention relates to a derivative of pyridine, namely the coordination compound of manganese (2) gross f-ly Mn
The method of obtaining tetrathionate of tetraethylammonium / 2057135
The invention relates to inorganic chemistry, namely to receive tocomplex elements of the seventh group, in particular to a method for tetrathionate of tetraethylammonium
 Tetra-2,3-inoxidizability manganese as a thermo stabilizer of polyvinyl chloride / 2052464
The invention relates to the synthesis of new macrocyclic complex compounds of some Tetra-2,3-Hino - clinophobia manganese, which can be used as a thermo stabilizer of polyvinyl chloride in the production of plastics, artificial leather, film materials
 The nitride of the transition metal complex / 2049789
The invention relates to radiopharmaceutical products
 Method for preparing palladium acetate / 2288214
Invention relates to a method for synthesis of platinum metal salts, in particular, palladium salts, namely, palladium (II) acetate. Method for synthesis of palladium (II) acetate involves dissolving metallic palladium in concentrated nitric acid, filtering and evaporation of palladium nitrate solution, its treatment with glacial acetic acid, filtration of formed sediment and its treatment with acetic acid ethyl ester and glacial acetic acid for its conversion to palladium (II) acetate followed by heating the prepared suspension for 6 h. Method provides preparing palladium (II) acetate with high yield in monophase state and without impurities of insoluble polymeric palladium (II) acetate.
 Method of neutralization of the water combustible solutions of the acetic acid at the automated batching-packing machine / 2286307
The invention is pertaining to the field of chemical industry, in particular, to the method neutralization of the acetic acid and its solutions at leakages and accidents. The method of neutralization of the water combustible solutions of the acetic acids at the computerized batching-packing production line provides for the treatment of the surface, on which there is a leakage of the acetic acid, with the powdery anhydrous sodium carbonate. The treatment of the spilled acetic acid is exercised till formation of the paste and the paste is left on the surface for a while. At the second and the subsequent leakage of the acetic acid on the tray and at formation of the liquid phase the place of the spill is treated with a sodium carbonate till formation of the paste with the purpose for binding the liquid phase. In the case the acetic acid spills on the surfaces located outside of the tray, the neutralization of the acetic acid is exercised by water till gaining the 25-30 % solution. The surface treatment with the powder of the sodium carbonate at the first spill is exercised at the following components ratio (in mass %): Na2CO3:CH3C00H = 1.6÷4.0:1. The invention ensures reduction of the wastes of the production process, allows to reduce emissionof CO2 and allows to diminish toxicity of the production process.
 Method of production of lead tetraacetate / 2277530
The invention is pertaining to the field of chemical industry, in particular, to the method of production of lead tetraacetate. The method provides for realization of interaction of the red-lead with anhydrous acetic acid at the temperatures of 30-40°C with the subsequent separation of the target product not later than 3-5 hours after the termination of reaction. In the capacity of the dehydrating reagent is used the by-product of the interaction - lead diacetate, which forms the hydrated complex with water. The invention ensures production of lead tetraacetate equal to 70-75 % from the theoretical value. The technical result of the invention is simplification of the production process, improvement of the economic features.
Ferrous acetate preparation method / 2269509
Method consists in that iron powder is oxidized in acetic acid/acetic anhydride (4%) medium with air oxygen bubbled through the medium, while maintaining iron-to-acetic acid molar ratio 5:1 and temperature 17-25°C. Reaction mixture is thoroughly stirred with blade stirrer at speed of rotation 720-1440 rpm until reaction mixture accumulates 0.75-0.96 mol/kg ferric salt. Thereafter, air is replaced by nitrogen and 4% acetic anhydride based on initially charged acetic acid is added, temperature is raised to 35-40°C, and iron is oxidized with ferric salt until full consumption of the latter. Resulting snow-white ferrous acetate suspension is separated from unreacted iron, filtered off, and dried. All above operations are carried out under a nitrogen atmosphere. Filtrate, which is saturated ferric acetate solution in acetic acid/acetic anhydride mixture, is recycled to reactor to be reprocessed or it is used according another destination.
Ferrous acetate preparation method / 2269508
Ferric acetate is prepared by interaction of metallic iron with acetic acid in presence of an oxidant. Process is carried out at ambient temperature in acetic acid/acetic anhydride medium (weight ratio 5:1) under nitrogen atmosphere. Molar ratio acetic acid/iron/basic ferric acetate is maintained the following: 10:8:1. Reaction mixture is thoroughly stirred with high-speed blade stirrer or shaken at shaking frequency 2 Hz. When consumption of basic ferric acetate is completed, suspension of ferrous acetate is separated by filtration from unreacted iron powder. Precipitate is dried and filtrate returned into the process.
Basic ferric acetate preparation method / 2268874
Implementation of the method comprises contacting iron in the form of iron powder or iron sidewall adjacent to a body with glacial acetic acid and air oxygen at 17-25°C and vigorous stirring effected by high-speed blade-type mechanical stirrer. Initial acetic acid-to-iron molar ratio is (224÷274):100. Acetic anhydride additive is preferably introduced in amount of 2% based on the initial concentration of acetic acid. When concentration of ferric salt in the mixture reaches 2.70-3.51 mole/kg, stirring is stopped and heavy unreacted iron particles are allowed to settle/ Major mass of product suspension is filtered off and thus obtained basic ferric acetate precipitate is dried. Filtrate, which is saturated acetic acid solution of basic ferric acetate, is returned into reactor to be reprocessed. Yield of desired product achieves 99.2-99.3%.
 Zinc and aliphatic halogen-carboxylic acid salts for treatment of skin neoplasm and visible mucosa tissues / 2261243
Invention relates to zinc and aliphatic halogen-carboxylic acid salts that can be used in treatment of benign neoplasms of skin and visible mucosa tissues. Invention proposes the following formula of zinc and aliphatic halogen-carboxylic acid salts: (1):
 Method for preparing ferrous (ii) acetate / 2259994
Invention relates to a method for preparing acetic acid salts, in particular, anhydrous ferrous (II) acetate. Method for preparing anhydrous ferrous (II) acetate involves interaction of metallic iron with acetic acid in the presence of oxidizing agents of ferric oxide Fe2O3 or Fe3O4 and molecular iodine in the mole ratio acetic acid : acetic anhydride : iron oxide = 100:(6-20):(2-2.5), respectively, and in the mole ratio iron oxide : iodine = 100:6.3. The process is carried out at temperature 80°C in the beaded mill of vertical type with high-rotation blade mixer and reflux condenser in the mass ratio of glass beads and liquid phase in the charge = 1:1. The process is carried out with periodic taking off samples of the end product solid phase by filtering and the following recover filtrate and feeding with acetic acid and iron oxide. For compensation of components loss of liquid phase in filtering there are recovered into reactor to the repeated process that is carried out for four times at a time. All procedures of the basic process and filtration are carried out in nitrogen medium. Preferably, method involves using hematite, γ-oxide, iron minium, magnetite or Fe3O4 x 4 H2O as the iron oxide source. Invention provides possibility for preparing anhydrous ferrous (II) acetate and simplifying method due to excluding the evaporation stage in isolation of salt.
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.
 The way to get calcium acetate / 2156757
The invention relates to the production of salts of acetic acid
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.
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FIELD: chemical technology. SUBSTANCE: invention relates to technology for synthesis of acetic acid inorganic salts. Method involves interaction of metallic manganese or its dioxide with acetic acid in the presence of oxidizing agent. Process is carried out in beaded mill of vertical type fitted with reflux cooling-condenser, high-speed blade mixer and glass beads as grinding agent loaded in the mass ratio to liquid phase = 1.5:1. Liquid phase represents glacial acid solution in ethylcellosolve, ethylene glycol, 1,4-dioxane, isoamyl alcohol and n-butyl alcohol as a solvent. The concentration of acid in liquid phase is 3.4-4 mole/kg. Then method involves loading iodine in the amount 0.025-0.070 mole/kg of liquid phase, metallic manganese and manganese dioxide in the mole ratio = 2:1 and taken in the amount 11.8% of liquid phase mass. The process starts at room temperature and carries out under self-heating condition to 30-38°C to practically complete consumption of manganese dioxide. Prepared salt suspension is separated from beads and unreacted manganese and filtered off. Filtrate is recovered to the repeated process and prepared precipitate is purified by recrystallization. Invention provides simplifying method using available raw and in low waste of the process. EFFECT: improved method of synthesis. 3 cl, 9 ex
The invention relates to the technology of production of manganese salt and a carboxylic acid, in particular acetic acid, and can be used in various fields of industrial and laboratory chemicals and analytical control. It is known that in the system iron-carboxylic acid-iodine oxide iron (III)-organic solvent flows through a series of chemical reactions, including circular, the primary end product of which is a salt of carboxylic acid. The main supplier of the specified cation salt is a metal oxide, while the share of metal depending on the nature of the oxide is only about 25-33% (Amiano, Sportwhat, Dosatore. A circular stage in the processes of production of iron salts of carboxylic acids. News of the Kursk state technical University, 2004, №1 (12). S-98). The disadvantage of this approach is that the selected conditions, the main product of the transformation is a salt of iron (III), and to obtain a salt of divalent metal needs either a specially selected process conditions (which might not always), or additional offline restore process trivalent metal in the divalent. Closest to the claimed is a method of producing acetate iron (II) (RU 2259994 C1, 10.09.2005 on application No. 2004104495/04 from 1.02.05), whereby the interaction of iron, oxide of Fe2About3or Fe3O4with iodine and acetic acid is carried out in a bead mill, vertical type with high-speed mechanical stirrer and a reflux-condenser, with glass beads in a mass ratio of liquid phase loading of 1:1 in a nitrogen atmosphere in the presence of acetic anhydride as a dehydrating and stimulating supplements at 80° with periodic sampling of the solid phase of the product by filtration in a nitrogen atmosphere, and returning the filtrate to repeat the process. The disadvantages of this method are: 1. The process and selection of product in a nitrogen atmosphere, which significantly complicate and instrumentation of process and execution of the latter. 2. The use of hard and maintaining a virtually anhydrous medium, not only initially but throughout the process. 3. The process at 80°. At this temperature volatility and acetic acid, and acetic anhydride become apparent that requires working effectively reverse condenser, as well as traps and other measures to ensure comfortable conditions for staff. 4. No download more high-boiling organic solvent in the solution whose relative is eucast acetic acid significantly be decreased. 5. Suck is not necessary that the model method of producing iron acetate can be used when replacing iron and its oxide to manganese dioxide and this metal whose properties and dioxide, and salt-product is significantly different from the properties of iron and its oxide and acetate. The objective of the proposed solutions is to obtain manganese acetate (II) of manganese metal and its oxide is similar in meaning to the above process with similar hardware design. This object is achieved in that the process is carried out in a bead mill of the upright type, not requiring the supply of external heat, the loading of manganese metal and manganese dioxide is produced in a molar ratio of 2:1 in the amount of 11.8% by weight of the liquid phase, the liquid phase of the system consists of an organic solvent and acetic acid with a concentration of 3,4÷5 mol/kg and dosed in a mass ratio of glass beads of 1:1.5, in the liquid phase of the system dissolve the iodine in the amount of 0.025-0.07 mol/kg liquid phase, the loading is carried out in sequence: liquid phase or separate its components, iodine, metal and manganese dioxide; the process begins at room temperature and lead to the almost complete consumption of dioxide obtained a suspension of the salt is separated from the main part of the unreacted metal and Stekla the aqueous beads and sent for filtration, the precipitated salt is cleaned from impurities of the metal and its oxide by recrystallization, and the filtrate is directed to repeat the process. The organic solvent used ethyl cellosolve, ethylene glycol, 1,4-dioxane, isoamyl and n-butyl alcohols. And the presence in the liquid phase system of water up to 4 wt.% practically does not affect the characteristics of the process. Characteristics of the raw materials used Manganese reactive GOST 6008-90. Manganese dioxide according to GOST 4470-79. Iodine crystal according to GOST 4159-79. Acetic acid according to GOST 61-75. The ethyl cellosolve according to GOST 8313-88. Ethylene glycol according to GOST 10164-75. n-butyl alcohol according to GOST 6006-78. Isoamyl alcohol according to GOST 5830-70. 1,4-Dioxaspiro 10455-80. The process of the inventive method the following. In ball mill vertical type with glass enclosure, a high-speed stirrer is made of Teflon or other inert and durable plastic and with a reflux-condenser injected glass beads, pre-cooked liquid phase or its components separately, iodine, manganese and manganese dioxide. Include mechanical stirring, and the time taken for the beginning of the process. During the process without stopping stirring take samples of the reaction mixture, which determine the salt content of the East and the exact amounts of acetic acid and manganese dioxide. As soon as the bulk of the manganese dioxide is consumed, stop stirring, the reaction mixture is separated from the glass beads and the main mass of the heavy plates and particles of manganese, after which it sent for filtering. The filtrate, representing a saturated solution of manganese acetate in a mixture of solvent and acetic acid, analyze, and return in the re process. And solid phase are sent to clean salt from impurities in the hot filtration and recrystallization. Example No. 1. In a ball mill with glass casing inner diameter of 63.7 mm and height 159 mm with Teflon paddle stirrer, spaced from the bottom of the reactor at 0.3 mm, and a reflux-condenser load 250 g of glass beads with a diameter of 0.9-1.8 mm and 167 g of a solution of acetic acid in ethyl cellosolve. The concentration of acid 3.4 mol/kg Then enter 11 g of manganese metal, 8.7 g of manganese dioxide and 1.27 g of iodine. Include mechanical stirring (1440 rpm) and the time taken for the beginning of the process. The temperature in the reaction zone at this point 21°C. during the process, take samples of the reaction mixture and the results of the analysis determine the degree of conversion of the manganese dioxide. After 113 minutes, it was over 99%. The temperature of the reaction mixture at this point was reached 33°C. Stirring is stopped and separate the reaction mass from the beads, passing it through a kind of filter with grid with cells of 0.4·0.5 mm instead of filtering partition. This operation is performed so that the main mass of the heavy particles of manganese remained at the bottom bead mill and beads. The last without any rinse immediately return to the ball mill, and the suspension is very slow settling of salt in the number of 179 g filter. The filtrate is returned to repeat the process, and the solid mass is recrystallized from aqueous acetic acid and acetate of manganese. Finally, 43,3 g Mn(ASON3)2·4H2O. Examples No. 2-9. The reaction apparatus, the loading of the beads and the liquid phase, the dosage of manganese and manganese dioxide, the sequence of operations when downloading, the process and the product selection is similar to that described in example 1. Different concentration of acetic acid in the liquid phase, the nature of the solvent and iodine. The results obtained are summarized in the table. Legend: solvents EC - ethyl cellosolve, EG - ethylene glycol, 1,4D - 1,4-dioxane, IAS - isoamyl alcohol, NBS is n-butyl alcohol, RV - water reaction. td align="center"> 374
The positive effect of the proposed solutions. 1. The method is quite simple to perform, does not require external supply of heat and focused on readily available raw materials. Approximately half of the accumulated salt raw material is manganese dioxide, which is the natural connection. 2. Instrumentation process is simple and does not contain boiler-supervising equipment. This process can be successfully held in the low variant. It is not formed and does not accumulate any unwanted inhibitors that allows for the subsequent series in the apparatus filled with dead zones and not to lose the reaction mixture for this reason. There are no restrictions on the return of the spent liquid phase and unreacted metal and dioxide in the re process. 3. Pretty simple cleaning with whom or from solids and recrystallization reduce losses at this stage to a minimum. 1. A method of producing manganese acetate (II) by direct interaction of the metal and manganese dioxide with acetic acid in the presence of additives iodine as oxidant in a bead mill, vertical type with a reflux-condenser, a high-speed paddle stirrer and glass beads as pereirago agent, characterized in that the loading of manganese metal and manganese dioxide is produced in a molar ratio of 2:1 in the amount of 11.8% by weight of the liquid phase, the liquid phase of the system consists of an organic solvent and acetic acid with a concentration of 3,4÷5 mol/kg and dosed in a mass ratio with glass beads 1:1.5, in the liquid phase of the system dissolve the iodine in the amount of 0.025-0,070 mol/kg liquid phase, the loading is carried out in sequence: liquid phase or its components separately, iodine, metal and manganese dioxide; the process begins at room temperature and lead to the almost complete consumption of dioxide obtained a suspension of the salt is separated from the main part of the unreacted metal and glass beads, and sent to the filtration, the precipitated salt is cleaned from impurities of the metal and its oxide by recrystallization, and the filtrate is directed to repeat the process. 2. The method according to claim 1, characterized in that the organic solvent used, etincelle is ALW, ethylene glycol, 1,4-dioxane, isoamyl and n-butyl alcohols. 3. The method according to claim 1, characterized in that the presence in the liquid phase system of water up to 4 wt.% practically does not affect the characteristics of the process.
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