Complexonate nitrylotri(methylenphosphonat)-2-phenyl-3-ethyl-8-oxychinolin sodium salts salt-deposition inhibitor |
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IPC classes for russian patent Complexonate nitrylotri(methylenphosphonat)-2-phenyl-3-ethyl-8-oxychinolin sodium salts salt-deposition inhibitor (RU 2337915):
     
 Long-chain alkylphosphonic acids as soft steel corrosion inhibitors and their production / 2337914
Invention relates to phosphoroorganic chemistry, namely, to method of obtaining long-chain alkylphosphonic acids, possessing anticorrosion activity, based on α-olefins of industrial fraction C16-C18 and C20-C26. Invention can be applied for protection of pipelines, reservoirs, construction metallic structures, equipment for extraction, transportation and processing oil and gas, in metal processing. Long-chain alkylphosphonic acids are obtained by interaction of α-olefins of industrial fraction C16-C18 and C20-C26 with O,O-dimethylphosphorous acid in molar ratio 1:(1.0-2.0) in presence of benzoyl peroxide in amount of 1.0-5.0% of weight of dimethylphosphorous acid at 110-150°C during 10-12 hours in absence of solvent with further hydrolysis of intermediate higher O,O-dimethyl(alkyl) phosphonates with hydrochloric acid with heating, obtaining target product which represents mixture of long-chain alkylphosphonic acids.
 Amorphous alendronate monosodium, methods of production, based pharmaceutical composition and method of inhibition of bone resobrtion / 2334751
Invention refers to method of production of amorphous alendronate monosodium and to solid pharmaceutical composition having property to invoke bone bulk expansion and containing therapeutically effective amount of amorphous alendronate monosodium, produced by stated method. Method of production of amorphous alendronate monosodium includes solvent removal from alendronate monosodium solution using spray drying.
 Acidic phosphorous containing complex forming reagent and method of obtaining it (versions) / 2331651
The invention pertains to an acidic phosphorous containing reagent, is used in the oil industry, heat energy, textile industry, production of mineral fertilizers and household chemistry, and to methods of obtaining the reagent. The reagent (conventional name "АФК-1") contains the following in given mass %: acetoxyethylidenediphosphonic acid 50.0-95.0 mass %, acetic acid - 29.5-0.5 mass %, the rest is acetic anhydride to 100. The quantitative composition of the indicated reagent is determined by the method of obtaining it and the ratios of the initial reagents. The method of obtaining the reagent involves adding acetic anhydride to a suspension of acetic and phosphorous acid at temperature of 60-90°C for a period of 1.5 hours. The reaction mixture is kept at 100-110°C for 1 hour and acidic impurities are distilled off to a controlled volume of distillate. Similar methods are developed based on phosphorous containing wastes from production of acid chlorides of higher fatty acids. The wastes are treated with water or a water solution of acetic acid with subsequent separation of the organic layer of fatty acids, after which the residue, containing phosphorous acid, is treated with phosphorous tri-chloride and acetic anhydride at 115-130°C, and acidic impurities are distilled off to the controlled distillate volume.
 Acidic phosphorous containing complex-forming reagent and method of obtaining it / 2331650
Invention pertains to the chemistry of phosphorous organic compounds, and specifically to an acidic phosphorous containing complex-forming reagent, which can be used in the oil industry, heat energy, textile industry, production of mineral fertilizers and household chemistry, and to the method of obtaining it. The acidic phosphorous containing complex-forming reagent (conventional name "АФК-2") contains the following in mass %: acetoxyethylidenediphosphonic acid - 50-95 mass %, acetic acid - 50-5 mass %. The method of obtaining the composition involves adding phosphorous tri-chloride, acetic acid and water simultaneously to glacial acetic acid in molar ratios equal to 1:(4.5-5.5):(1.93-1.95), at temperature of 35-45°C with subsequent keeping of the reaction mixture at 110-120°C for a period of 2 hours and controlled distillation of acidic impurities to the required distillate volume.
Method of obtaining inhibitor of precipitation of mineral salts / 2329270
Invention pertains to the method of obtaining an inhibitor of precipitation of mineral salts, The inhibitor is obtained by reaction of hexamethylenediamine and ammonium chloride with formaldehyde and phosphorous acid in a medium of diluted hydrochloric acid at high temperature with subsequent neutralisation of the obtained solution using sodium hydroxide to pH of 6.5±1.0. The process is carried out with molar ratio of hexamethylenediamine to ammonium chloride of 1:3-6.
 Plasma carboxypeptidase b inhibitors / 2323223
Invention describes compound of the formula (I):
 Method for preparing monohydroperfluoroalkanes, bis-(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates / 2319705
Invention describes a method for synthesis of monohydroperfluoroalkanes, bis-(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates. Method involves treatment of at least one perfluoroalkylphosphorane with at least one base wherein base(s) are chosen from group consisting of alkali-earth metal hydroxides, metalloorganic compound in useful solvent or at least one organic base and an acid in useful reaction medium. Also, invention describes novel perfluoroalkylphosphonates and bis-(perfluoroalkyl)phosphinates, using novel perfluoroalkylphosphonates and bis-(perfluoroalyl)phosphinates as ionic liquids, catalysts of phase transfer or surfactants.
 Method for preparing copper (ii), zinc (ii), nickel (ii) and cobalt (ii) nitrilotri-(methylenephosphonates)(2-) / 2314313
Invention relates to a method for preparing copper (II), zinc (II), nickel (II) and cobalt (II) nitrilotri-(methylenephosphonates)(2-) that involves crystallization from aqueous solutions prepared by interaction of metal (II) compound with nitrilotri-(methylenephosphonic) acid or its salt with sodium potassium or ammonium in aqueous medium at temperature from -5°C to 105°C under atmosphere pressure. As a reactive of the metal (II) compound source the waste from manufacturing printing plates and galvanic covers can be used. The end products can be used in preparing the complex electrolytes and solutions for applying metallic covers by electrochemical and chemical methods in aims for inhibition against the equipment corrosion, and for preparing other compounds of metals with nitrilotri-(methylenephosphonic) acid.
 Phosphonic acid compounds as serine proteinase inhibitors / 2311421
Invention relates to phosphonic acid compounds used as inhibitors of serine proteinase of the general formula (I):
 Method for preparing n-phosphonomethylglycine / 2311420
Invention relates to a novel method for synthesis of N-phosphonomethylglycine. Method involves interaction of hexahydrotriazine compound with triacyl phosphite in organic solvent, saponification of formed phosphonic compound after preliminary extraction into aqueous phase, separation of organic phase and precipitation of N-phosphonomethylglycine by pH value control in the range from 0.5 to 2.0. Invention prevents decomposition of an organic solvent in saponification.
 Cleaning detergent for descaling of heating elements and internal surfaces of laundry washers / 2334790
Detergent contains in mass %: sodium tripolyphosphate 39, sodium carbonate 42, sodium chloride 12, zeolite or bentonite 4, ethylene oxide mole ethoxylated 8-10 nonyl phenol 2, sodium salt of ethylenediaminetetraacetic acid 1. Single processing cycle provides descaling efficiency to 95-98 %.
Compaund for removal of mineral deposits / 2325333
Invention pertains to detergent compositions for removal of high-temperature mineral deposits from inner surfaces of heat-exchange equipment. The compound contains chlorhydric acid, thiocarbamide and copper (II) salt at following component ratio: chlorhydric acid 7-12 Wt%; thiocarbamide 5-9 Wt%; copper (II) salt 0.3-0.7 Wt%; water - the rest.
Composition for removal of scale and deposit / 2324661
Composition contains sodium or potassium or ammonium pyrosulphate or sodium or potassium or ammonium persulphate, 0.09-10% w/w, sodium or potassium or ammonium fluoride or hydrofluoric acid - 0.01-1.0 %w/w, polyphenolic compounds of wood or conifer rind - 0.003-6.0 %w/w, urotropine - 0.01-8.0 %w/w, hydrochloric acid - 2.0-24.0 % w/w, non-ionic detergent -0.0015-0.0% w/w, and water - the rest.
Scale removal composition / 2257354
Invention relates to compositions for removal of scale from surfaces of pipes, heat exchangers, and process apparatuses. Composition of invention contains, wt %: sodium, potassium, or ammonium pyrosulfate or persulfite 0.09-10.0, polyphenol compounds from conifer bark 0.003-2.0, urotropin 0.01-4.0, nonionic surfactant 0.0015-0.009, polyhexamethyleneguanidine chloride 0.1-1.5, aqueous hydrochloric acid 2.0-15.0, and water - the balance.
 The composition for removing scale / 2238915
The invention relates to the petrochemical, chemical industry, power industry, water supply and other sectors of the economy, and in particular to compositions for removing scale from the surface of the pipes, heat exchangers and technological devices
 Detergent composition for removing scale / 2172301
The invention relates to household chemicals, in particular to washing compositions for removing scale from metal surfaces of various kinds of heat exchangers, coils, etc
 How turbomachine water / 2115630
 The method of removing deposits of sulfates of alkaline earth metals / 2110489
The invention relates to the use of low-frequency sound energy to increase the solubility of sulfate deposits of alkaline earth metals from the surfaces of underground wells and oil equipment
 Composition for preventing scale / 2097340
The invention relates to compositions for preventing deposits of salts and can be used in oil production and refining in the protection of technological devices in systems thermochemical preparation of oil from wells
 The way to prevent scaling and corrosion / 2065409
Scale removal composition / 2257354
Invention relates to compositions for removal of scale from surfaces of pipes, heat exchangers, and process apparatuses. Composition of invention contains, wt %: sodium, potassium, or ammonium pyrosulfate or persulfite 0.09-10.0, polyphenol compounds from conifer bark 0.003-2.0, urotropin 0.01-4.0, nonionic surfactant 0.0015-0.009, polyhexamethyleneguanidine chloride 0.1-1.5, aqueous hydrochloric acid 2.0-15.0, and water - the balance.
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FIELD: chemistry. SUBSTANCE: invention relates to novel chemical compounds as salt-deposition inhibitors and can be used in oil industry in oil extraction, in particular in system of sewage water utilising, as well as in systems of circulating water supply of industrial enterprises. Suggested is complexonate of nitrylotri(methylenephosphonato)-2-phenyl-3-ethyl-8-oxychinolin sodium salt of formula EFFECT: obtaining salt-deposition inhibitor characterised by high efficiency with low consumption rate under conditions of intensive degasing. 1 cl, 1 ex, 1 tbl
The invention relates to new chemical compounds as the scale inhibitor and can be used in the oil industry for oil, particularly in the wastewater system, and the circulating water supply systems of industrial enterprises. It is known the use of complexions eddc-zinc, NTF-zinc as inhibitors [1]. The prototype structure and the achieved effect is complexant nitrilotri(methylenephosphonate)-zinc sodium salt [2]. The disadvantage of these inhibitors is low efficiency in conditions of intense degassing. The present invention is to obtain an effective inhibitor scaling in conditions of intense degassing. The problem is solved by the fact that as the scale inhibitor is used complexant nitrilotri(methylenephosphonate)-2-phenyl-3-ethyl-8-oksihinolina sodium salt of the following formula:
The proposed connection will receive a mixed condensation of o-aminophenol with oily aldehyde and benzaldehyde and subsequent interaction with nitriltrimetilenfosfonovaya acid and treated with a solution of sodium hydroxide. To a solution of 0.4 mmole PrCl3(0.1 g) and 1.2 mmole PPh3(0.3 g) in 1 ml of absolute benzene at totalon at 10° With was added 1.2 mmole Et3Al and stirred for 10 minutes. The resulting solution of catalyst was introduced into a steel autoclave (V=17 cm3), which was pre-loaded 20 mmol of o-aminophenol, 21 mmol of benzaldehyde, 21 mmol butyric aldehyde and 6 ml of benzene. The autoclave was heated for 6 hours at 150°and With constant stirring, then cooled. The reaction mass was extracted three times with ether (3×50 ml), the combined extracts were dried over anhydrous MgSO4. The precipitated crystals are recrystallized from benzene, was filtered and kept in a desiccator. Received 5.9 g (yield 73%) of 2-phenyl-3-ethyl-8-oksihinolina. The resulting product is a powder with a characteristic odor. TPL=115°C. Range PMR (δ, ppm): 0.9 (3H, CH3), is 1.35-1.85 m (6N, CH2), 2.9 (2H, CH2), 7,39-7.62 m (4H, phenyl), EUR 7.57 d, 7,88 d, 8,1 D. 20 mmol of the obtained product was treated equimolar number nitriltrimetilenfosfonovaya acid and sodium hydroxide. Tests of protective actions complexant nitrilotri(methylenephosphonate)-2-phenyl-3-ethyl-8-oksihinolina sodium salt was performed in a model environment that simulates real produced water (table). For analysis in a glass cell with a capacity of 550 ml and placed them in a metal sample, a temperature sensor and a stirrer was placed in a 500 ml model environment. The village is e which it was heated to a temperature of +70° With, at the same time saturating within one hour of carbon dioxide CO2. Further, in all cells, except the control, were dosed out the required amount of scale inhibitor and conducted by degassing the solution by purging with nitrogen for 2.5 hours. Next, the samples were cooled, filtered and in accordance with RD 39-23-1055-84 "instruction on methods of analysis of the mineral composition of interstitial waters and sediments of the salts was determined in the filtrate, the concentration of calcium ions. Based on the content of calcium ions in the source, eingeborenen and inhibited solutions determined the effectiveness of the test scale inhibitor at various concentrations.
The advantages of complexant nitrilotri(methylenephosphonate)-2-phenyl-3-ethyl-8-oksihinolina sodium salt compared to the proto is ipom: a high degree of protection in conditions of intensive degassing - 95.6% of low consumption rate (20 mg/l vs 35 mg/l prototype). Sources of information 1. MU 1-322-03. Guidelines for stabilizing treatment of makeup water heating systems, hot-water boilers complexions eddc-Zn, NTF-Zn. HUM RNII the Akha: Rostov-on-don. - 2003. - 20 S. 2. MU 1-321-03. Guidance on remedial treatment of feed water for steam boilers, feed water heating systems, hot-water boilers complexions eddc-Zn, NTF-Zn. HUM RNII the Akha: Rostov-on-don. - 2003. - 22 S. Complexant nitrilotri(methylenephosphonate)-2-phenyl-3-ethyl-8-oksihinolina sodium salt of the formula
as the scale inhibitor.
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