CAS: 814-90-4; Chromium (Ic) Oxalate

专利信息

专利号:US-6680013-B1
优先权日:1999-04-15
标题 :Synthesis of macroporous structures
发明人：STEIN ANDREAS; HOLLAND BRIAN T; BLANFORD CHRISTOPHER F; YAN HONGWEI
权利人:UNIV MINNESOTA
摘要:The present application discloses a method of forming an inorganic macroporous material. In some embodiments, the method includes: providing a sample of organic polymer particles having a particle size distribution of no greater than about 10%; forming a colloidal crystal template of the sample of organic polymer particles, the colloidal crystal template including a plurality of organic polymer particles and interstitial spaces therebetween; adding an inorganic precursor composition including a noncolloidal inorganic precursor to the colloidal crystal template such that the precursor composition permeates the interstitial spaces between the organic polymer particles; converting the noncolloidal inorganic precursor to a hardened inorganic framework; and removing the colloidal crystal template from the hardened inorganic framework to form a macroporous material. Inorganic macroporous materials are also disclosed.

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: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.