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1. 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 Initial hydrocarbons are fed into first contact zone and oxidation product is withdrawn from the last contact zone.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may be preliminarily utilized for absorption of residual oxygen and hydrocarbons from secondary oxidation vapors withdrawn from reactor by way of supplying hydrocarbons in separate streams into each contact zone.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

2. 发明专利

RU2102374C1 METHOD OF PREPARING ALKYL TERT-ALKYL ETHERS AND/OR MIXTURES THEREOF WITH HYDROCARBONS 未知
公开(公告)号：RU2102374C1
公开(公告)日：1998-01-20
申请号：RU96114303
申请日：1996-07-18
申请人： TOVARISHCHESTVO S OGRANICHENNO , SKIM T , NI SKIJ TS NEFTEKHIMICHE , NEFTEKHIMSTART
发明人： PAVLOV S JU , GORSHKOV V A , CHURKIN V N , SHLJAPNIKOV A M , PAVLOV O S
IPC分类号： C07C41/06 , C07C43/04
摘要： FIELD: preparation of high octane oxygen-containing gasoline components. SUBSTANCE: claimed method comprises contacting hydrocarbon mixtures containing tert-olefins and aliphatic C 1 -C 5 alcohols in the presence of heterogeneous acid catalysts in two or more consecutive reaction zones in which temperature in the last reaction zone is lower than that in the first zone. Peculiar feature of the method is that catalyst in the first zone has particle size at least twice as large as average particle size in the last reaction zone, more particularly the first reaction zone uses average particle size of at least 2 mm, preferably 3 mm, and the last reaction zone uses average particle size of less than 1.5 mm. Temperature in the first reaction zone is maintained by partial evaporation of mixture, and by recirculation of mixture(s) withdrawn from said zone or from subsequent zone(s). EFFECT: more efficient preparation method. 5 cl2

3. 发明专利

RU2114096C1 METHOD OF PRODUCING TERT-BUTANOL AND C1-C5-ALKYL-TERT-BUTYL ETHERS 未知
公开(公告)号：RU2114096C1
公开(公告)日：1998-06-27
申请号：RU95114245
申请日：1995-08-07
申请人： SKIM T , TOVARISHCHESTVO S OGRANICHENNO , NI SKIJ TS NEFTEKHIMICHE
发明人： PAVLOV S JU , GORSHKOV V A , BUBNOVA I A , CHURKIN V N , STOLJARCHUK V I , TITOVA L F , KARPOV I P
IPC分类号： C07C29/04 , C07C31/12 , C07C41/06 , C07C43/04
摘要： FIELD: industrial organic synthesis. SUBSTANCE: tert-butanol and C 1 -C 5 -alkyl-tert-butyl ethers are produced by way of consecutively bringing isobutylene-containing hydrocarbon mixture in contact with water and alcohol in presence of acidic heterogeneous catalysts in vertical apparatus. Hydrocarbon mixture and water are fed into apparatus, amount of water being such as to replenish its consumption on reaction with isobutylene and entrainment by hydrocarbon extract. Tert-butanol is extracted by non-reacted hydrocarbons, which are then distilled off in column apparatus. Tert-butanol is optionally subjected to heteroazeotropic drying. Distilled off hydrocarbons are brought in contact with a non- tertiary alcohol or alcohol mixture in presence of catalysts and then distilled off from produced ether or ether mixture, or ether- alcohol mixture. Conversion of isobutylene in contact with water is maintained at the level from 40 to 70% by controlling hydrocarbon mixture flow within the range from 0.5 to 10 l/l h and temperature from 70 to 130 C. From vertical apparatus, above catalyst zone, liquid stream is withdrawn containing mainly water and tert-butanol, which is cooled and recycled to the apparatus inlet. EFFECT: enhanced process efficiency. 4 cl, 1 dwg

4. 发明专利

RU2102375C1 METHOD OF PREPARING ALKYL ETHERS AND MIXTURES THEREOF WITH HYDROCARBONS 未知
公开(公告)号：RU2102375C1
公开(公告)日：1998-01-20
申请号：RU95114226
申请日：1995-08-07
申请人： NI SKIJ TS NEFTEKHIMICHE , SKIM T , TOVARISHCHESTVO S OGRANICHENNO
发明人： PAVLOV S JU , GORSHKOV V A , CHURKIN V N , KARPOV I P , PAVLOV O S , BUBENKOV V P , SHLJAPNIKOV A M
IPC分类号： C07C43/04 , C07C41/06
摘要： FIELD: petrochemical industry. SUBSTANCE: present invention describes method of preparing alkyl tert-alkyl ethers and mixtures thereof with hydrocarbons by contacting alcohols and tertiary olefin containing hydrocarbon mixture with heterogeneous acid catalysts in direct-flow reaction zones at 30-100 C and subsequently rectifying the reaction products. Hydrocarbon mixture and alcohol(s) are fed in strict proportions into the first reaction zone. In the last direct-flow reaction zone, temperature is maintained by 20-50 C, preferably 30-40 C, lower then that in the first direct-flow reaction zone. In the first reaction zone, temperature difference at reaction inlet and outlet is maintained at not higher than 25 C, preferably not higher than 15 C. Alcohol(s) is (are) fed as recited in the claims of the present invention. Alkyl tert-alkyl ethers or mixture thereof with hydrocarbons are withdrawn from the bottom of rectification column and preferably lighter hydrocarbons are withdrawn from the top of rectification column. EFFECT: more efficient preparation method. 4 cl, 1 dwg$

5. 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.

6. 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

7. 发明专利

RU2111946C1 METHOD OF PREPARING 4-VINYLCYLLOHEXENE-1 未知
公开(公告)号：RU2111946C1
公开(公告)日：1998-05-27
申请号：RU95121382
申请日：1995-12-15
申请人： TOVARISHCHESTVO S OGRANICHENNO , SKIM T , NI SKIJ TS NEFTEKHIMICHE
发明人： OSOKIN JU G , PAVLOV S JU , CHURKIN V N , PAVLOV O S , BOJKOVA S B
IPC分类号： C07C13/20
摘要： FIELD: organic synthesis. SUBSTANCE: vinyl cyclohexene can be used as original material for producing epoxides, organoaluminium compounds and other valuable products of organic synthesis. Claimed method is carried out by dimerization of 1,3-butadiene in liquid phase at 70-150 C in the presence of metal complex catalyst based on carbonyl iron and sodium nitrite followed by recovery of the desired product by standard procedures, e.g. by rectification. Butadiene and mixtures thereof with hydrocarbons and/or solvents are contacted with catalyst including dodecacarbonyl triferrate or dihydride undecacarbonyl triferrate, or complex salts of undercacarbonyl hydride trifferate anion with amines at Fe:Na atomic ratio of (0.2-5.0):1. EFFECT: more efficient preparation method. 3 clv

8. 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

9. 发明专利

RU2103255C1 METHOD FOR PRODUCTION OF ALKYL-TERT-ALKYL ETHERS 未知
公开(公告)号：RU2103255C1
公开(公告)日：1998-01-27
申请号：RU95122346
申请日：1995-12-28
申请人： TOVARISHCHESTVO S OGRANICHENNO , NI SKIJ TS NEFTEKHIMICHE , SKIM T
发明人： PAVLOV S JU , GORSHKOV V A , CHURKIN V N , SHLJAPNIKOV A M
IPC分类号： C07C41/06 , C07C43/04
摘要： FIELD: organic chemistry. SUBSTANCE: method involves production of alkyl-tert-alkyl ethers by interaction of isoolefins with alcohols, the process is carried out in the presence of acid heterogenic catalysts. Tertiary olefins comprising in hydrocarbon mixtures are used. The process takes place by consequent direct-flow and counterflow contact with output of stream comprising preferably unreacted hydrocarbons into fractionation rectifying zone and with stream being saturated by alkyl-tert-alkyl ethers into fractionation stripping zone. Said streams are removed of fractionation zones for their counterflow contact, origin hydrocarbon fraction and alcohol(s) may be partially fed for counterflow contact. Direct-flow contact is realized at least in two or more reaction zones, the whole stream of alcohol(s) being fed for direct-flow contact are supplied into the first reaction zone. Stream of origin hydrocarbon mixture (its quantity being 30-90 % of total supply) is fed into the first reaction zone, residual amount is fed into consequent direct-flow zone(s) and/or into upper part of fractionation stripping zone of counterflow reaction device. Alternative method according to which alcohol(s) and hydrocarbon fraction are fed into the first direct-flow reaction zone in such amount that molar ratio of alcohol(s) and tert-olefins is 1.2-2.0 being more preferable. It is preferable to fed portion of origin hydrocarbon fraction into fractionation stripping zone by 1-10 plates lower than supply of reaction mass from direct-flow reaction zones takes place. EFFECT: improved efficiency of the method. 4 cl, 1 dwgf

10. 发明专利

RU2132838C1 METHOD OF PREPARING CONCENTRATE AND HIGH-OCTANE COMPONENTS 未知
公开(公告)号：RU2132838C1
公开(公告)日：1999-07-10
申请号：RU98104175
申请日：1998-02-19
申请人： OBSHCHESTVO S OGRANICHENNOJ OT , NKHT S , TOVARISHCHESTVO S OGRANICHENNO , NEFTEKHIMSTART
发明人： GORSHKOV V A , PAVLOV S JU , SMIRNOV V A , CHURKIN V N , SHLJAPNIKOV A M
IPC分类号： C07C11/167
摘要： FIELD: chemical industry, more particularly preparation of 1,3-butadiene and high-octane products. SUBSTANCE: method of preparing butadiene concentrate and high-octane components from hydrocarbon mixtures containing at least 1,3-butadiene, isobutene straight- chain butenes and other C 4 , hydrocarbons comprises separating hydrocarbons by extractive rectification in the presence of polar extracting agent, subsequently contacting the resulting isobutene-containing distillate with acid catalyst in the presence of non-tertiary alcohol(s) and distilling at least unreacted C 4 , hydrocarbons. Extractive rectification is used to withdraw hydrocarbon distillate stream containing from 0.5 to 15% of 1,3-butadiene. After being purified, the latter is made to contact with acid catalyst in the presence of alcohol(s), and desorbate stream containing from 70 of 95% of 1,3-butadiene and not more than 5%, preferably not more than 2% of butenes, is used for manufacturing synthetic rubber. EFFECT: simplified process. 6 cl, 3 dwg, 6 ex, 3 tbl

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