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1. 发明专利

RU2114154C1 METHOD OF INHIBITING PROCESS OF THERMOPOLYMERIZATION AND RESIN FORMATION OF UNSATURATED HYDROCARBONS 未知
公开(公告)号：RU2114154C1
公开(公告)日：1998-06-27
申请号：RU96123887
申请日：1996-12-20
申请人： SKIM T , TOVARISHCHESTVO S OGRANICHENNO , NI SKIJ TS NEFTEKHIMICHE , JAROKS
发明人： BOREJKO N P , PATANOVA I M , SUROVTSEV A A , PAVLOV S JU , JAFIZOVA V P , LIAKUMOVICH A G , AKHMED JANOVA R A
IPC分类号： C10G9/16 , C08F2/42
摘要： FIELD: chemical industry. SUBSTANCE: claimed method is useful in process of thermopolymerization of resin formation of unsaturated hydrocarbons in deethanization and depropanization columns in the process of separation of products of pyrolysis of hydrocarbons by multi-step rectification by adding inhibitor. The inhibitor includes product resulting from oxidizing - tetramethyl-4-oxopiperidine and comprising 55-92% tetramethyl-4-oxopiperidine-1-oxyl; 4-35 % - tetramethyl-4-oxopiperidine; 1-8% -tetramethyl-1- hydroxy-4-oxopiperidine; and 1-9% admixtures. Inhibitor is used in amount of 0.005-0.3% (preferably 0.01-0.1%) by weight on initial hydrocarbon mixtures admitted into depropanization and deethanization columns. The inhibitor includes solution of said oxidation product in organic solvent. EFFECT: more efficient method and improved economic characteristics. 2 cl, 1 tbln

2. 发明专利

RU2106342C1 METHOD OF LIQUID-PHASE OXIDATION OF HYDROCARBONS 未知
公开(公告)号：RU2106342C1
公开(公告)日：1998-03-10
申请号：RU96104421
申请日：1996-03-05
申请人： NI SKIJ TS NEFTEKHIMICHE , SKIM T , TOVARISHCHESTVO S OGRANICHENNO
发明人： PAVLOV S JU , SUROVTSEV A A , KOMAROV S M , KARPOV O P , CHURKIN V N
IPC分类号： C07C407/00 , C07C409/00
摘要： FIELD: petrochemical processes. SUBSTANCE: oxidation is conducted at elevated temperature and pressure in multiple-zone reactor with vapor space common for all contact zones. Initial hydrocarbons are fed into first contact zone and oxidation product is withdrawn from the last contact zone. Oxygen-containing gas is supplied into all contact zones, over which secondary oxidation vapors are recycled. Reaction mixture is recycled in contact zones under pressure. Oxidation reaction heat is abstracted in such a way that secondary vapors coming out of all contact zones are intermixed and transferred in separate streams to be mixed with reaction mixture streams recycling in each contact zone at temperature below oxidation reaction temperature. Gas- liquid streams thus formed in each contact zone are further dispersed. In this case, a part of initial hydrocarbons at temperature below oxidation reaction temperature may be preliminarily utilized for absorption of residual oxygen and hydrocarbons from secondary oxidation vapors withdrawn from reactor by way of supplying hydrocarbons in separate streams into each contact zone. Supplied oxygen-containing gas, completely or partially, may also be mixed with secondary oxidation vapors. Reaction heat abstraction may be accomplished by cooling reaction mixture streams circulating in each contact zone. EFFECT: enhanced process efficiency. 4 cl, 5 dwgi

3. 发明专利

RU2106195C1 REACTOR FOR CONTACTING OF GAS AND LIQUID 未知
公开(公告)号：RU2106195C1
公开(公告)日：1998-03-10
申请号：RU96104422
申请日：1996-03-05
申请人： TOVARISHCHESTVO S OGRANICHENNO , SKIM T , NEFTEKHIMSTART
发明人： KOMAROV S M , PAVLOV S JU , SUROVTSEV A A , DOBROVINSKIJ V E , KARPOV O P , CHURKIN V N
IPC分类号： B01J10/00 , B01J19/24
摘要： FIELD: petroleum refining, petrochemical, chemical and other branches of industry. SUBSTANCE: the reactor has a body accommodating a mixer in the form of a vertical tube, and an external circulation system having a pipeline for discharge of liquid from the body bottom part, a pump and a pipeline for inlet of liquid to the body upper part, connected to a nozzle installed above the mixer. The body under the mixer is divided by a horizontal partition with an overflow pipe, whose upper end is located below the upper end of the mixer; a device indicating the liquid level below the partition is installed in the bottom part of the reactor. EFFECT: improved design. 5 cl, 5 dwg.

4. 发明专利

RU2102370C1 METHOD OF PREPARATION OF ISOPRENE 未知
公开(公告)号：RU2102370C1
公开(公告)日：1998-01-20
申请号：RU96103258
申请日：1996-02-20
申请人： TOVARISHCHESTVO S OGRANICHENNO , NI SKIJ TS NEFTEKHIMICHE , SKIM T , NEFTEKHIMSTART
发明人： PAVLOV S JU , SUROVTSEV A A , KARPOV O P , CHURKIN V N , POKROVSKAJA Z A , GORSHKOV V A , PAVLOV O S
IPC分类号： C07C11/18
摘要： FIELD: chemical industry. SUBSTANCE: present invention describes method of preparing isoprene from isopentane. Said method comprises oxidizing isopentane with the resulting tert- amyl hydroperoxide, epoxidizing 2-methyl-2-butene, thermocatalytically decomposing the resulting 2-methyl-2- butene oxide to produce isoprene and methyl isopropyl ketone and dehydrating the resulting tert-amyl and secisoamyl alcohols, separating tert-amylenes by rectification, isomerizing 2-methyl-2-butyl and the latter is epoxidized. Unreacted isopentane is recycled for oxidation. Methylisopropyl ketone is removed from system or thermocatalytically decomposed to obtain additional amount of isoprene. Alternatively, isomerization is combined with isomerization of 2-methyl- 1-butene-3-ol impurity in isoamyl alcohols and/or with dehydration of isoamyl alcohols. Decomposition of methylisopropyl ketone is combined with decomposition of 2-methyl-2-butene oxide. Prior to epoxidation, isopentane is removed from oxidate with optional addition of 2-methyl-2-butene, and mixture of carbonyl compounds and C 1 -C 3 -alcohols is separated from said 2-methyl-2-butene by aqueous extraction. Acetic acid is separated from oxidate by extraction with water followed by reextraction of tert-amylhydroperoxide with 2-methyl-2-butene or, after epoxidation stage, acetic acid is separated from mixture containing isoamyl alcohols by azeotropic rectification with water. EFFECT: more efficient preparation method. 6 cl, 5 dwg, 5 tbla

5. 发明专利

RU2108856C1 REACTOR FOR LIQUID-PHASE OXIDATION OF HYDROCARBONS 未知
公开(公告)号：RU2108856C1
公开(公告)日：1998-04-20
申请号：RU96104423
申请日：1996-03-05
申请人： SKIM T , TOVARISHCHESTVO S OGRANICHENNO
发明人： KOMAROV S M , PAVLOV S JU , SUROVTSEV A A , DOBROVINSKIJ V E , KARPOV O P , CHURKIN V N
IPC分类号： B01J10/00
摘要： FIELD: chemical reactors. SUBSTANCE: reactor for liquid- phase oxidation includes horizontal cylindrical housing divided into chambers by vertical partitions which are so located that form free space above them; device has also pipe line for introducing the starting products into first chamber, pipe line for removal of oxidate from last chamber, pipe line for feeding oxidizing gas, pipe line for discharge of secondary vapors of oxidation, pipe line for removal an introduction of circulating reaction mixture; device is also provided with manifold of circulation of secondary vapors of oxidation located in parallel with its axis in space above partitions or above housing; it is brought in communication with free space of first and last chambers; manifold is provided with one or several injection devices. EFFECT: enhanced efficiency. 7 cl, 7 dwg øøø1

6. 发明专利

RU2128171C1 METHOD OF INHIBITION OF DIOLEFINIC HYDROCARBON POLYMERIZATION PROCESS 未知
公开(公告)号：RU2128171C1
公开(公告)日：1999-03-27
申请号：RU96123885
申请日：1996-12-20
申请人： NI SKIJ TS NEFTEKHIMICHESKIM T , TOVARISHCHESTVO S OGRANICHENNO , JAROKS
发明人： PATANOVA I M , SUROVTSEV A A , PAVLOV S JU , KARPOV O P , BOREJKO N P , TUL CHINSKIJ EH A , LIAKUMOVICH A G
IPC分类号： C07D211/94 , C08F36/04
摘要： FIELD: chemical technology, polymers. SUBSTANCE: for inhibition of polymerization of diolefinic hydrocarbons a substance obtained by oxidation of 2,2', 6,6'-tetramethyl-4-oxopiperidine is used. This substance has the following composition, wt. -%: 2,2',6,6'-tetramethyl-4-oxopiperidine-1-oxoyl 55-92; 2,2', 6,6'-tetramethyl-4-oxopiperidine 4-35; 2,2',6,6'-tetramethyl-1-hydroxy-4-oxopiperidine 1-8, and impurities 1-9. Inhibitor is used at concentration 0.005-0.10% (preferably 0.01-0.1%) of diolefinic hydrocarbons mass. A solution of the above indicated oxidation product in an organic solvent can be used as an inhibitor also. New method of inhibition in processes of isolation of diolefinic hydrocarbons by rectification ensures to exclude polymer formation at rigorous regimes of working. EFFECT: improved method of inhibition, simplified process, prolonged exploitation of equipment, decreased energy consumption. 2 cl, 2 tbl, 31 ex

7. 发明专利

RU2114830C1 METHOD OF PREPARING POLYMERIZATION INHIBITOR OF UNSATURATED HYDROCARBONS 未知
公开(公告)号：RU2114830C1
公开(公告)日：1998-07-10
申请号：RU96124030
申请日：1996-12-20
申请人： OTKRYTOE AKTSIONERNOE OBSHCHES , SKIJ INST JARSINTEZ ATEL , TOVARISHCHESTVO S OGRANICHENNO , NI SKIJ TS NEFTEKHIMICHESKIM T
发明人： PATANOVA I M , SUROVTSEV A A , KARPOV O P , KORGICHEV A N , PAVLOV S JU , BESPALOV V P , BOREJKO N P
IPC分类号： C07D211/74 , C08K5/16
摘要： FIELD: chemical industry. SUBSTANCE: present invention describes method of preparing polymerization inhibitor of unsaturated hydrocarbons based on -tetramethyl-4-oxopiperidin-1- oxyl. The claimed method comprises oxidation of - tetramethyl-4-oxopiperidine with hydrogen peroxide in the presence of carbon dioxide in amount of 0.03-2 wt % as catalyst. Stock includes hydrocarbon fraction which contains at least 85 wt % -tetramethyl-6- oxopiperidine. Oxidation is accompanied by presence of water or organic solvent and also trilone B. The desired product is recovered by extraction with organic extracting agent and is subsequently distilled. 5 to 95 wt % extracting agent is distilled. The claimed method makes it possible to simplify preparation of polymerization inhibitor increase its yield and improve efficiency. EFFECT: more efficient preparation method. 5 tbl, 7 tbll

8. 发明专利

RU2139272C1 TERT-BUTYL ALCOHOL PRODUCTION METHOD 未知
公开(公告)号：RU2139272C1
公开(公告)日：1999-10-10
申请号：RU98115118
申请日：1998-08-04
申请人： OBSHCHESTVO S OGRANICHENNOJ OT , S KHT , NEFTEKHIMSTART , TOVARISHCHESTVO S OGRANICHENNO
发明人： PAVLOV S JU , SUROVTSEV A A , KARPOV O P , POKROVSKAJA Z A , SUROVTSEVA EH A , GOLUBCHIKOV O A , CHURKIN V N
IPC分类号： C07C29/48 , C07C31/12
摘要： FIELD: industrial organic synthesis. SUBSTANCE: isobutane is subjected to liquid-phase oxidation with oxygen-containing gas at 50 to 200 C and pressure 1.0 to 10.0 MPa in presence of catalyst, in particular, oligomer complex cobalt or iron phthalocyanine and copper phthalocyanine having general phthalocyanine formula (M 1 PcM 2 Pc) i , wherein M 1 is cobalt or iron, M 2 copper, Pc phthalocyanine, and i=8-20, in amount 0.001 to 0.1% of the weight of isobutane. EFFECT: accelerated oxidation process. 1 tbl

9. 发明专利

RU2139860C1 METHOD OF INHIBITING POLYMERIZATION OF VINYLCYCLIC AND ALKYLVINYLCYCLIC COMPOUNDS 未知
公开(公告)号：RU2139860C1
公开(公告)日：1999-10-20
申请号：RU98118241
申请日：1998-10-05
申请人： SKIJ INST JARSINTEZ ATEL , OTKRYTOE AKTSIONERNOE OBSHCHES , TOVARISHCHESTVO S OGRANICHENNO
发明人： SUROVTSEV A A , PATANOVA I M , KARPOV O P , PAVLOV S JU , BESPALOV V P , MELEKHOV V M , BOREJKO N P , GALIEV R G , MUSTAFIN KH V , SEREBRJAKOV B R , ZUEV V P , BELOKUROV V A
IPC分类号： C07D211/74 , C08K5/16
摘要： FIELD: chemical technology, more particularly recovery of vinylcyclic and alkylvinylcyclic compounds from mixtures and/or purification by rectification. SUBSTANCE: method in carried out by adding polymerization inhibitor based on tetramethylpiperidyl-4-fulvene N-oxide dimer or its solution. Inhibitor is product prepared by oxidation of mixture comprising at least -tetramethyl-4- oxopiperidine and -tetramethylpiperidyl-4-fulvene dimer. Inhibitor has the following components (wt %): -tetramethyl-4-oxopiperidine-1-oxyl, 15-70; di( )- tetramethyl-4-oxopiperidyl-4-fulvene-1-oxyl, 12-65; - tetramethyl-4-oxopiperidine, 2-8; di-( -tetramethyl-4- oxopiperidyl-4-dulvene, 4-11); di- -tetramethyl- piperidyl-4-furene-1-hydroxy, 1-3; and oxygen and/or nitrogen-containing and/or hydrocarbons, 3.5-10. Inhibitor is used in concentrated form or as solution in organic solvent. Said inhibitor is used to inhibit polymerization of styrene and/or alkylvinyl-pyridines and/or mixtures thereof with other agents at temperatures of not higher than 140 C, preferably up to 120 C. EFFECT: greater economic efficiency due to smaller amounts of polymer and reduced power consumption. 3 cl, 4 ex, 1 tbl

10. 发明专利

RU2139859C1 METHOD OF PREPARING INHIBITOR OF POLYMERIZATION OF UNSATURATED HYDROCARBONS 未知
公开(公告)号：RU2139859C1
公开(公告)日：1999-10-20
申请号：RU98118240
申请日：1998-10-05
申请人： SKIJ INST JARSINTEZ ATEL , OTKRYTOE AKTSIONERNOE OBSHCHES , TOVARISHCHESTVO S OGRANICHENNO , JAROKS
发明人： SUROVTSEV A A , PATANOVA I M , KARPOV O P , PAVLOV S JU , BESPALOV V P , FEDOTOV V B , BOREJKO N P , GALIEV R G , MUSTAFIN KH V , RJAZANOV JU I
IPC分类号： C07D211/74 , C08K5/16
摘要： FIELD: chemical industry, more particularly preparation of inhibitor of polymerization of unsaturated hydrocarbons based on tetramethyl-4- oxopiperidin-1-oxyl. SUBSTANCE: method comprises oxidizing tetramethyl-4-oxopiperidine with organic hydroperoxide in the presence of variable valency metal compounds as catalyst. Method makes it possible to increase yield of the desired product and improve its inhibiting activity. EFFECT: more efficient preparation method. 5 cl, 7 ex, 2 tbl

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