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1. 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

2. 发明专利

RU2131865C1 METHOD OF PREPARING ALKYL-TERT-ALKYL ETHERS OR MIXTURES THEREOF 未知
公开(公告)号：RU2131865C1
公开(公告)日：1999-06-20
申请号：RU98104177
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 O S , PAVLOV S JU , CHURKIN V N , SHLJAPNIKOV A M
IPC分类号： C07C41/06 , C07C43/04
摘要： FIELD: production of high-octane components. SUBSTANCE: alkyl-tert-alkyl ethers or mixtures thereof with hydrocarbons and/or alcohols are prepared by contacting hydrocarbon mixtures containing at least tert- alkenes and nontertiary alcohol(s) in the presence of acid catalyst followed by separation of at least part of unreacted hydrocarbons from reaction products. At least part of stream taken from top and/or tope portion of rectification zone and containing preferably unreacted hydrocarbons is subjected to liquid-phase contacting with catalyst in additional reaction zone with alcohol(s) optionally admitted therein. Temperature at said zone outlet is maintained by 10 C lower than that at first reaction zone outlet, and the resulting reaction mixture is admitted into said reaction zone. EFFECT: higher conversion of tert-alkene and higher reaction rate in second reaction zone. 3 cl, 2 dwg, 6 ex, 2 tbl

3. 发明专利

RU2137808C1 METHOD OF PRODUCING DIMERIZATION AND OLIGOMERIZATION PRODUCTS 未知
公开(公告)号：RU2137808C1
公开(公告)日：1999-09-20
申请号：RU98104178
申请日：1998-02-19
申请人： NKHT S , OBSHCHESTVO S OGRANICHENNOJ OT , NEFTEKHIMSTART , TOVARISHCHESTVO S OGRANICHENNO
发明人： GORSHKOV V A , KARPOV I P , PAVLOV D S , PAVLOV S JU , CHURKIN V N , JAROSLAVTSEV V A
IPC分类号： C10G50/00 , C07C2/08
摘要： FIELD: petrochemical processes. SUBSTANCE: hydrocarbon mixtures containing at least non-tertiary C 3 -C 6 -alkenes are brought into liquid-phase contact with heterogeneous acid catalyst(s). In the zone where dimers and/or codimers and/or trimers of non-tertiary C 3 -C 6 -alkenes are formed, sulfonate-ionite catalyst is used and temperature 80-135, preferably 90-115 C, is maintained. EFFECT: eliminated corrosive danger, lowered process temperature, and simplified process technology. 7 cl, 4 dwg, 2 tbl, 11 ex

4. 发明专利

RU2137807C1 METHOD OF PREPARING HIGH-OCTANE COMPONENT S AND MIXTURES 未知
公开(公告)号：RU2137807C1
公开(公告)日：1999-09-20
申请号：RU98104160
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 D S , PAVLOV S JU , CHURKIN V N , SHLJAPNIKOV A M
IPC分类号： C10G50/00 , C07C2/28 , C07C41/06 , C10G69/02
摘要： FIELD: petrochemical processes. SUBSTANCE: hydrocarbon mixtures containing at least tertiary alkenes are brought into liquid-phase contact with heterogeneous acid catalyst(s) optionally followed by distillation of unreacted products. In reaction zone(s), where tert-alkene dimers and/or codimers are formed, contents of alcohol(s) and/or alkyl-tert-alkyl ether(s) in liquid phase are maintained from 0.1 to 50 wt % and that of water from 0.005 to 0.2 wt %. EFFECT: increased selectivity of conversion of isobutene into its dimers and codimers with n-butenes and reduced formation of trimers and oligomers. 7 cl, 4 dwg, 3 tbl, 8 ex

6. 发明专利

RU2141468C1 METHOD OF HYDRATION OF ALKENES 未知
公开(公告)号：RU2141468C1
公开(公告)日：1999-11-20
申请号：RU98104158
申请日：1998-02-19
申请人： OBSHCHESTVO S OGRANICHENNOJ OT , NKHT S , TOVARISHCHESTVO S OGRANICHENNO
发明人： GORSHKOV V A , KARPOV I P , PAVLOV O S , PAVLOV S JU , CHURKIN V N , SHLJAPNIKOV A M
IPC分类号： C07C29/04 , C07C31/12 , C07C31/125
摘要： FIELD: chemical industry. SUBSTANCE: alkenes are hydrated in the presence of solid and/or water soluble catalyst(s) at elevated temperature in one or more vertical reaction zones with aqueous and hydrocarbons streams flowing in direct or counterdirect direction so that phase containing predominantly hydrocarbons is used as solid liquid phase and dispersible phase containing predominantly water are used in at least one reaction zone. Also described are method embodiments which are different in inlets for original products, presence and inlet for recyclable products, type of reactor used wherein tert- and non-tert alkenes are subsequently hydrated. Said method makes it possible to obtain tertiary and/or nontert; ary alcohols and to recover tert-and/or non-tertiary alkenes from hydrocarbon mixtures. EFFECT: more efficient hydration method. 5 cl, 4 dwg, 10 ex, 1 tbl

7. 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

8. 发明专利

RU2143418C1 METHOD OF SEPARATING C3 OR C4 HYDROCARBONS 未知
公开(公告)号：RU2143418C1
公开(公告)日：1999-12-27
申请号：RU98118132
申请日：1998-09-30
申请人： TOVARISHCHESTVO S OGRANICHENNO , NITS NKHT , OBSHCHESTVO S OGRANICHENNOJ OT
发明人： GORSHKOV V A , PAVLOV S JU , CHURKIN V N , PAVLOV O S , BUBENKOV V P , SHLJAPNIKOV A M
IPC分类号： C07C7/08 , C07C9/02
摘要： FIELD: chemical industry, more particularly, separation of mixtures of lower hydrocarbons. SUBSTANCE: in order to separate mixture of C 3 or C 4 hydrocarbons, extractive rectification is used in the presence of high-boiling polar agent. Less saturated hydrocarbons are separated from extractive agent in distillation-rectification zone where auxiliary desorption agent is present in amount of 2-35 wt %. Desorption agent is hydrocarbon and/or ether which have normal boiling temperature by 30-85 C higher than desorbable hydrocarbons. Part of desorption agent is withdrawn together with extracting agent stream followed by distillation thereof from extracting agent in additional column operating at lower pressure, preferably close to atmospheric pressure. Or part of desorption agent is withdrawn together with stream of desorbable hydrocarbons followed by separation of mixture by distillation. Desorption agent may be simultaneously withdrawn together with stream of extracting agent and with stream of desired hydrocarbons. It is preferable to recycle stream in condensed state of recoverable desorption agent into middle or lower portion or still of extractive rectification column and/or distillation- rectification zone. EFFECT: lower power consumption of hydrocarbon separation process. 9 cl, 3 dwg, 2 tbl

9. 发明专利

RU2137745C1 TERT-BUTYL ALCOHOL PRODUCTION PROCESS 未知
公开(公告)号：RU2137745C1
公开(公告)日：1999-09-20
申请号：RU98115117
申请日：1998-08-04
申请人： S KHT , OBSHCHESTVO S OGRANICHENNOJ OT , 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 80 to 200 C and pressure 1.0 to 10.0 MPa in presence of, as catalyst, 0.001 to 0.2% (based on isobutane weight) of coordination complex of substituted metal phthalocyanine having general formula M-L-Rn wherein M is iron, cobalt, nickel, or ruthenium; L phthalocyanine; R tert-butyl, dibutylaminosulfonyl, butulsulfonyloxy, decylsulfonyloxy, or chlorosulfonyl group; n=2-4. As promoter, 0.02 to 2.5 wt % of organic amide can be added. EFFECT: simplified technology. 2 cl, 28 ex

10. 发明专利

RU2128638C1 ISOPRENE PRODUCTION PROCESS 未知
公开(公告)号：RU2128638C1
公开(公告)日：1999-04-10
申请号：RU97114365
申请日：1997-08-20
申请人： ZAKRYTOE AKTSIONERNOE OBSHCHES , TOVARISHCHESTVO S OGRANICHENNO , NEFTEKHIMSTART
发明人： PAVLOV S JU , SUROVTSEV A A , KARPOV O P , CHURKIN V N
IPC分类号： C07C11/18 , C07C1/20
摘要： FIELD: industrial organic synthesis. SUBSTANCE: process consists in liquid-phase interaction of formaldehyde with isobutylene and/or trimethylcarbinol in presence of aqueous acid catalyst solution at elevated temperature and pressure in two consecutive contact steps withdrawing, in the second step, liquid stream containing aqueous catalyst solution and gaseous stream containing at least unreacted isobutylene and isoprene product, after which gaseous stream is condensed and recycle isobutylene and isoprene are isolated from condensate, the former being returned into the first step. According to invention the second contact step comprises several reaction zones provided with mass-exchange and/or distributive means. External heat is supplied at least into the first of these zones and each following zone has temperature lower than temperature of preceding zone. Reaction products from the first contact step before or after stratification into aqueous and hydrocarbon layers are introduced into the first and/or any of the subsequent reaction zones. Gaseous stream from each preceding reaction zone is transferred into the following zone and discharged from top part of the last reaction zone. Liquid stream from each preceding reaction zone is transferred into the following zone and discharged from the first and optionally from an intermediate reaction zone in the form of stream containing aqueous catalyst solution, which is divided into two streams, the first one being returned into the first contact step and the other being optionally fed into one or several zones of the second contact step. EFFECT: reduced isoprene cost price due to reduced raw material, power, and investment expenses, simplified equipment, and increased yield of product. 6 ex

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