The method of obtaining serosoderjaschei additives |
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IPC classes for russian patent The method of obtaining serosoderjaschei additives (RU 2181137):
     
The method of obtaining serosoderjaschei additives / 2168536
The invention relates to the field of synthesis of serosoderjaschei additives with enhanced extreme-pressure, anti-wear properties, high thermal and oxidative stability
 Lubricating composition for cold metal forming / 2136725
The invention relates to technological lubricants and can be used in the processing of metals by pressure, in particular, on the operations of stamping metal parts
 The method of obtaining gear oil for hypoid gears / 2079547
The invention relates to methods for gear oils class TM-4 hypoid gear trucks, cars, special cars and separate units of helicopters, the relevant classes of viscosity SAE 90 (viscosity
 100within 14-24 cSt)
 The method of obtaining gear oil for hypoid gears / 2079546
The invention relates to methods for gear oils class TM-4 hypoid gear trucks, cars, special cars and separate units of helicopters, the relevant classes of viscosity SAE 140 (viscosity
100within 24-41 OST)
 Anti-friction additive for lubricants / 2059692
 Oil gear transmission / 2054460
The invention relates to lubricants for transmission gears, particularly hypoid gear hire
 Lubricant for gear transmission "stp-3m / 2017797
Lubricating composition / 2015159
The method of obtaining serosoderjaschei additives / 2168536
The invention relates to the field of synthesis of serosoderjaschei additives with enhanced extreme-pressure, anti-wear properties, high thermal and oxidative stability
The method of obtaining polysulfide oligomers / 2154056
The invention relates to a process for the synthesis of polysulfide oligomers used as the basis sealant, adhesive and coating materials in various industries, including optical and optoelectronic engineering
 A method of producing dimethyl sulfide / 2032664
The invention relates to the chemistry of acyclic sulfides, specifically to an improved process for the preparation of dimethyl sulfide, which can be used as odorant and the source of raw material for the synthesis of dimethyl sulfoxide
The method of producing diallylsulfide / 2017715
The method of obtaining serosoderjaschei additives / 2168536
The invention relates to the field of synthesis of serosoderjaschei additives with enhanced extreme-pressure, anti-wear properties, high thermal and oxidative stability
 The way to obtain 4,4'-policiales/2,6-di-tert-butylphenol/ / 2068410
The invention relates to a method for producing 4,4-policiales-(2,6-di-tert
 Method of production of sulphur-containing additives / 2334787
Application: synthesis of lubricant additives. Substance: α-olefins of fractions C16-C18 react with sulphur at 130-150°C during 2.5-3 h with catalyst taken in ratio to α-olefins as mass % 0.5-4.5. Catalyst is presented with reaction product of diisobutylphosphoric acid and butyl methacrylate taken in equimolar amounts at temperature 70-75°C.
 Method of derivative synthesis with hydrofluoromethylenesulfonyl radical / 2346934
Invention concerns method of obtaining compounds containing hydrofluoromethylenesulfonyl radical, involving: a) stage of R-S-M mercaptide condensation in solvent, where R is tertiary alkyl or benzyl, M is alkaline metal, with compound containing carbon atom in sp3 hybridisation, carrying hydrogen, fluorine, heavy halogen selected out of chlorine, bromine and iodine, and electron-acceptor group selected out of fluorine or Rf; b) stage of oxidation of compound obtained at stage a) by halogenation, preferably chlorination or bromination, in the presence of aqueous phase. Particularly the invention allows obtaining difluoromethanesulfinic or difluoromethanesulfonic acid derivatives.
 Catalyst, method of making said catalyst and method of obtainiing dimethyl sulphide / 2368418
Invention relates to dimethyl sulphide, which is used as an odorant and raw material for synthesis of various valuable thio compounds, particularly dimethyl sulphoxide, which is an extracting agent, solvent and medicine. Described is a catalyst for obtaining dimethyl sulphide through conversion of dimethyl disulphide, which is 10.0-18.5 wt % cobalt sulphide, deposited on aluminium oxide. Description is given of a method of preparing a catalyst by saturating aluminium oxide with a solution of cobaltous acetate with subsequent drying, baking in air and treatment of the catalyst with a mixture of hydrogen sulphide and hydrogen at T=390-410°C, and with hydrogen at T=200-330°C. A method is described for obtaining dimethyl sulphide through conversion of dimethyl disulphide in the presence of a catalyst with the above described content. The process is carried out at feed rate of 50-250 mmol dimethyl disulphide per hour per 1 g of catalyst.
 Docosahexaenoic acid derivatives and their application as drugs / 2441061
Invention refers to new compounds of formula (I)
![Method of producing s,s'-bis([n,n-dimethyl]methyl)alkanedithiols](http://img.russianpatents.com/img_data/1120/11202113-s.gif) Method of producing s,s'-bis([n,n-dimethyl]methyl)alkanedithiols / 2464259
Invention relates to a method of producing S,S'-bis([N,N-dimethyl]methyl)alkanedithiols of general formula (I):
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(57) Abstract: The invention relates to the synthesis of serosoderjaschei additives with enhanced extreme-pressure, anti-wear properties, high thermal and oxidative stability. The method consists in the interaction of olefins fraction16-C26or Dicyclopentadiene with grey at 130-150oC for 6 h in the presence of 0.5-5 wt.% in relation to the raw material of the catalyst, which is used as dialkyldithiophosphate zinc formula I, where R is ISO-C3H7or ISO-C4H9; R' - n-C12H25or ISO-C9H19. The sulfur content in serosoderjaschei additives compared with the known method is increased by 10-11 wt.%, and received the additives do not require additional cleaning of the used catalyst. The invention relates to the field of additive synthesis with enhanced extreme-pressure, anti-wear properties, high thermal and oxidative stability. These additives are used for the manufacture of lubricants used in metal processing, and transmission oils. A method of obtaining polysulfonic about the room, typically, isobutylene, to obtain the adduct. Synthesized adduct is in contact simultaneously with halogenougljovodonika, a sulfur compound, such as sulfide, hydrogen sulfide or polysulfide of an alkali metal and elemental sulfur in an aqueous or aqueous-alcoholic medium. The mixture is heated and after stratification separating the organic layer containing polysulfonyl olefin, which can be processed by the Foundation. The resulting olefins containing significant amounts of sulfur, have a sufficient viscosity and solubility in mineral and synthetic oils. They are used as high pressure additives in lubricating oils for gears and metal processing. /Application France 2563231, CL 10 M 135/04, 1985/. A significant disadvantage of this method is a multi-stage and the presence of significant amounts of sewage and industrial wastes. A method of obtaining structuresa additive interaction-olefin fraction WITH16-C18with elemental sulfur and hydrogen sulfide at a ratio of initial components 1: 1; 5:0.5 and a temperature of 171oC. Sulfurized-olefins contain 20,6% sulfur /international application PCT (WO) 88/02771, CL 10 M 135/02, 141/08, 1987/. 2. Education in the presence of hydrogen sulphide mercaptans, giving received structuresa insertion tool hard to carry the scent. 3. The need for removal of hydrogen sulfide and mercaptans formed from the received structuresa additives in order to give the latter the desired organoleptic properties. 4. The presence of significant quantities of gaseous emissions containing hydrogen sulfide and mercaptans. Closest to the claimed invention is a method for xerostomia additive interaction of the ethylene hydrocarbons such as isobutylene with elemental sulfur in the presence of aminoalcohols or research at an elevated pressure and a temperature of 130oC /EP 0714971, 05.06.96,, CL 10 M 135/04/. At 1,285 mol of isobutylene serves 2,3-4.9 mol of monoethanolamine, 2-7 mol of sulfur. The sulfur content in the ready insertion tool is 40-65 wt.%. In the case of use as a feedstock heavier Dicyclopentadiene content of sulfur in the resulting reaction product does not exceed 19,3 wt.% (example 10). The disadvantages of this method are:1. The use of large isback is esperta. 2. The need for cleaning structuresa additives from the initiator. The obtained additive extracted from the reaction mixture with n-heptane, the extract solution is washed with 10% soda and water. At the final stage n-heptane is separated from additives by distillation under vacuum. All these operations complicate the process and lead to the formation of significant amounts of sewage and waste - waste aminoalcohols. 3. Sulfated isobutylene with high sulfur content due to the low flash point of less than 100oWith can't be used for cold forming processes by which the metal surface is achieved, the temperature of 500-550oWith, and the sulfurized isobutylene will evaporate and contaminate the environment. In addition, they have an unpleasant odor, which is also unacceptable for additive technology lubricants. Therefore, to obtain serosoderjaschei additive technology grease as feedstock use fractions of olefinic hydrocarbons above C12H24. The problem to which the alleged invention is directed, is to simplify the process technology. To solve pointed to by the about dicyclopentane with sulfur at elevated temperature 130-150oWith carried out in the presence of catalytic amounts (0.5 to 5 wt.% for raw materials) dialkyldithiophosphate zinc formula < / BR> where R is ISO-C3H7or ISO-C4H9; R' - n-C12H25or ISO-C9H19. The content of sulfur in the insertion tool is 30-35 wt.%. Synthesized sulfur-containing additives without any further processing and extraction of catalyst can be used to produce a variety of lubricants and gear oils. The method is as follows. In temperature-controlled reactor, equipped with an efficient stirrer, a refrigerator, a thermometer, download olefins fraction16-C26or Dicyclopentadiene and 0.5-5 wt. % relative to the initial raw material, the catalyst - dialkyldithiophosphate zinc formula < / BR> where R is ISO-C3H7or ISO-C4H9; R' - n-C12H25or ISO-C9H19. The temperature was raised to 140 to 150oWith and within 6 hours carry out the synthesis structuresa additives. The reaction mass is then cooled to 40oWith and separate neprevyshenie sulfur filtering. The method is illustrated by the following examples.16-C18and 0.5 wt.% (2.5 g) dialkyldithiophosphate zinc as a catalyst having the formula < / BR> The temperature in the reactor was raised to 130oWith and serves 220 g of powdered sulfur for 1 h Then the temperature was raised to 150oC for 6 h carry out the reaction of interaction of sulfur with olefins. The reaction mass is then cooled to 40oWith and separated from neprevyshenie sulfur filtration. Received 711 g of additive containing to 30.1 wt.% sulphur. Example 2 carried out analogously to example 1, but the catalyst serves to 1 wt.% of raw materials; the quantity of sulfur is 240 was Obtained 719,8 g additives with a sulfur content of 32.1 wt.%. Example 3 carried out analogously to example 1, but the catalyst serves 2 wt.% of raw materials; the quantity of sulfur is 250 was Obtained 721,4 g additives with a sulfur content of 33 wt.%. Example 4 is carried out analogously to example 1, but the catalyst serves 4 wt.% of raw materials; the quantity of sulfur is 260, the Received 729,8 g additives with a sulfur content is 34.9 wt.%. Example 5 is carried out analogously to example 4, but the catalyst serves 5 wt.% for raw materials. Received 730,1 g additives with a sulfur content of 35.1 wt.%. Example 6 the BR> in the amount of 4 wt.% of raw materials; the quantity of sulfur 260, Received 730,2 g additives with a sulfur content of 34.7 wt.%. Example 7 is carried out analogously to example 4, but is used as raw material Dicyclopentadiene and the reaction is carried out at a pressure of 7 ATA. Received 728,7 g additives with a sulfur content of 30.4 wt.%. Example 8 is carried out analogously to example 6, but used as raw material Dicyclopentadiene and the reaction is carried out at a pressure of 7 ATA. Received 731,1 g additives with a sulfur content to 30.1 wt.%. Example 9 is carried out analogously to example 6, but is used as raw material olefin fraction WITH16-C26. Received 731,1 g additives with a sulfur content to 30.1 wt.%. Thus, the proposed method for structuresa additives compared with the prototype has the following advantages: 1. The reaction of interaction of olefins WITH16-C26, Dicyclopentadiene is carried out in the presence of catalytic amounts of 0.5-5 wt.% dialkyldithiophosphate zinc formula < / BR> where R is ISO-C3H7or ISO-C4H9; R' - n-C12H25or ISO-C9H19, instead of aminoalcohols or research, the supply of which is up to 200% on selected referatories 19,3% (example 10). 3. The process is not formed wastewater and waste. 4. The obtained additive does not require additional purification from the used catalyst, which generally simplifies the process of its receipt. The invention can find application in the production of serosoderjaschei additives for industrial lubricants used in metal processing, as well as for the manufacture of transmission oils. The method of obtaining serosoderjaschei additives by reacting olefins WITH16-C26or Dicyclopentadiene with grey at 130-150oIn the presence of a catalyst, wherein the catalyst used dialkyldithiophosphate zinc formula < / BR> where R is ISO-C3H7or ISO-C4H9; R' - n-C12H25or ISO-C9H19, in the amount of 0.5-5 wt.% for raw materials.
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