专利号:US-2025074844-A1 优先权日:2023-08-28 标 题:Polyalphaolefins made from dimer olefins obtained from branched c10 monoolefins using solid acid catalyst 发明人:MALINSKI THOMAS; GEE JEFFREY C; BISCHOF STEVEN M; KERNS SPENCER A; HILLIER JAMES; WEBSTER-GARDINER MICHAEL S 权利人:CHEVRON PHILLIPS CHEMICAL CO LP 摘要:Synthesis of polyalphaolefins by oligomerization of one or more branched C 10 monoolefins with a solid acid catalyst to form an oligomer product, followed by hydrogenation of a C 20+ olefin portion of the oligomer product to form the polyalphaolefins. The solid acid catalyst is selective to C 20 olefin dimers.
专利号:US-2025075015-A1 优先权日:2023-08-28 标题 :Polyalphaolefins made from dimer olefins obtained from branched c10 monoolefins using alkyl aluminum catalyst 发明人:MALINSKI THOMAS; KERNS SPENCER A; LESEBERG JULIE A; GEE JEFFREY C; BISCHOF STEVEN M; HILLIER JAMES; WEBSTER-GARDINER MICHAEL S 权利人:CHEVRON PHILLIPS CHEMICAL CO LP 摘要:Synthesis of polyalphaolefins by oligomerization of one or more branched C 10 monoolefins with an alkyl aluminum catalyst to form an oligomer product, followed by hydrogenation of a C 20+ olefin portion of the oligomer product to form the polyalphaolefins. The alkyl aluminum catalyst is selective to C 20 olefin dimers.
专利号:US-6706209-B1 优先权日:1999-08-27 标题:Stabilized monomer composition 发明人:SCHARF JAKOB; RAU HARTMUT; GOETZEN FRIEDRICH 权利人:ROEHM GMBH 摘要:A stabilized monomer composition containing at least one ethylenically unsaturated monomer and a combination of N,N-diethylhydroxylamine an N-nitroso-N-phenylhydroxylamine or its salt in a weight ratio of from 1:1 to 10:1 permits the synthesis of 2-hydroxyalkyl (meth)acrylates in particularly high yields and remains stable during prolonged storage.
专利号:WO-2020114745-A1 优先权日:2018-12-04 标题:Methods for separating linear alpha olefins from combined product streams 发明人:HAMILTON PAUL; HEINS BRIAN 权利人:EXXONMOBIL CHEMICAL PATENTS INC; HAMILTON PAUL; HEINS BRIAN 摘要:Certain linear alpha olefin (LAO) syntheses are selective and form a predominant LAO and minor amounts of other LAOs. The minor product LAOs have economic value, but they are difficult to separate from a selective LAO product stream because they are present in such small amounts. Product streams from a selective LAO synthesis and a non-selective LAO synthesis may be combined together to overcome this difficulty, namely through fractionating the combined product stream in a common distillation section. Methods for separating LAOs may comprise: combining a first product stream from a first LAO synthesis process and a second product stream from a second LAO synthesis process, in which the first LAO synthesis process is non-specific and forms a distributed plurality of LAOs and the second LAO synthesis process is specific and forms a predominant LAO and one or more minor product LAOs, and fractionating the combined product stream.
专利号:US-2010094070-A1 优先权日:2008-10-15 标 题 :Ethylene trimerization using a supported chromium-tantalum catalyst 发明人:QIU HE; ZHOU BING 权利人:HEADWATERS TECH INNOVATION LLC 摘要:Bimetallic, supported catalysts for production of 1-hexene from ethylene are manufactured by impregnating a porous, solid support material with at least one catalytic chromium compound and at least one catalytic tantalum compound. The bimetallic, supported catalysts have high catalytic turnover, high selectivity for 1-hexene production, a low tendency for metals to leach from the catalysts during manufacturing and use compared to catalysts manufactured using known techniques. Moreover, the catalysts can be reused in multiple synthesis runs. High turnover, high selectivity, and reusability improve yields and reduce the costs associated with producing 1-hexene from ethylene, while the absence of metal leaching reduces the potential environmental impacts of using toxic metal catalysts (e.g., chromium).
专利号:DE-69917914-T2 优先权日:1998-09-18 标题 :PRODUCTION OF COMBINATIONAL ARRAYS OF MATERIALS BY METHODS OF SYNTHESIS IN SOLUTION