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公开(公告)号:US6008388A
公开(公告)日:1999-12-28
申请号:US290647
申请日:1999-04-12
IPC分类号: C07D301/04 , B01J29/04 , B01J29/89 , C07D301/06 , C07D301/08 , C07D303/04 , C07D301/12
CPC分类号: B01J29/04 , B01J29/89 , C07D301/06 , C07D301/08
摘要: The selectivity of an olefin epoxidation catalyzed by a noble metal-modified titanium or vanadium zeolite is greatly enhanced by the addition of a nitrogen compound to the reaction mixture. The epoxidation utilizes hydrogen and oxygen in addition to the olefin.
摘要翻译: 通过向反应混合物中加入氮化合物,极大地提高了贵金属改性的钛或钒沸石催化的烯烃环氧化的选择性。 环氧化除了烯烃之外还使用氢和氧。
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公开(公告)号:US06468496B2
公开(公告)日:2002-10-22
申请号:US09742807
申请日:2000-12-21
申请人: C. Andrew Jones , Roger A. Grey
发明人: C. Andrew Jones , Roger A. Grey
IPC分类号: C01B1502
CPC分类号: B01J21/066 , B01J21/063 , B01J23/52 , C01B15/029 , C01G7/00 , C01G23/00
摘要: A supported gold-containing catalyst is effective for producing hydrogen peroxide from the direct liquid-phase reaction of hydrogen and oxygen.
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公开(公告)号:US5939569A
公开(公告)日:1999-08-17
申请号:US37399
申请日:1998-03-10
申请人: C. Andrew Jones , Roger A. Grey
发明人: C. Andrew Jones , Roger A. Grey
IPC分类号: C07B61/00 , C07D301/04 , C07D301/06 , C07D301/10 , C07D303/00
CPC分类号: C07D301/10 , C07D301/04 , C07D301/06
摘要: A process for converting an olefin such as propylene to the corresponding epoxide is described wherein the olefin, hydrogen and oxygen are contacted with a catalyst comprised of gold on a zirconium-containing support such as zirconia.
摘要翻译: 描述了将烯烃如丙烯转化成相应的环氧化物的方法,其中烯烃,氢和氧与含锆载体如氧化锆上的由金组成的催化剂接触。
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公开(公告)号:US06498259B1
公开(公告)日:2002-12-24
申请号:US10046502
申请日:2001-10-19
申请人: Roger A. Grey , C. Andrew Jones
发明人: Roger A. Grey , C. Andrew Jones
IPC分类号: C07D30106
CPC分类号: C07D301/06
摘要: The liquid-phase epoxidation reaction of an olefin with hydrogen and oxygen in the presence of a catalyst mixture containing a titanium zeolite and a supported catalyst surprisingly produces less ring-opened products such as glycols when performed in the presence of a buffer. This is particularly surprising because a typical palladium on titanium zeolite catalyst is little effected by the presence of a buffer. Surprisingly, the use of a buffer also typically improves the activity of the process.
摘要翻译: 在含有钛沸石和负载型催化剂的催化剂混合物存在下,烯烃与氢气和氧气的液相环氧化反应令人惊奇地在缓冲剂存在下产生较少的开环产物如二醇。 这是特别令人惊讶的,因为典型的钛钛沸石催化剂的钯不受缓冲剂的存在影响。 令人惊讶的是,缓冲液的使用通常也改善了过程的活性。
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公开(公告)号:US20110152550A1
公开(公告)日:2011-06-23
申请号:US12653678
申请日:2009-12-17
申请人: Roger A. Grey , Robert N. Cochran , Bi Le-Khac
发明人: Roger A. Grey , Robert N. Cochran , Bi Le-Khac
IPC分类号: C07D301/06 , B01J29/068
CPC分类号: C07D301/06 , B01J21/06 , B01J21/063 , B01J23/44 , B01J23/628 , B01J29/405 , B01J29/44 , B01J35/0006 , B01J35/0013 , B01J35/023 , B01J2229/42
摘要: A catalyst, useful for the direct epoxidation of olefins, is disclosed. The catalyst comprises palladium nanoparticles, support nanoparticles, and a titanium zeolite having a particle size of 2 microns or greater. The palladium nanoparticles are deposited on the support nanoparticles to form supported palladium nanoparticles, and the supported palladium nanoparticles are deposited on the titanium zeolite; or the supported palladium nanoparticles are deposited on a carrier having a particle size of 2 microns or greater. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst. The catalysts are more active in epoxidation reactions, while demonstrating the same or better selectivity.
摘要翻译: 公开了一种可用于烯烃直接环氧化的催化剂。 催化剂包括钯纳米颗粒,载体纳米颗粒和粒径为2微米或更大的钛沸石。 将钯纳米颗粒沉积在载体纳米颗粒上以形成负载的钯纳米颗粒,并将负载的钯纳米颗粒沉积在钛沸石上; 或者将负载的钯纳米颗粒沉积在粒径为2微米或更大的载体上。 本发明还包括一种生产环氧化物的方法,包括在催化剂存在下使烯烃,氢和氧反应。 催化剂在环氧化反应中更具活性,同时表现出相同或更好的选择性。
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公开(公告)号:US07767835B2
公开(公告)日:2010-08-03
申请号:US12317012
申请日:2008-12-18
申请人: Roger A. Grey
发明人: Roger A. Grey
IPC分类号: C07D301/06
CPC分类号: C07D301/04 , B01J21/06 , B01J21/063 , B01J23/628 , B01J29/076 , B01J29/89 , B01J35/0006 , B01J37/0201 , B01J37/08 , B01J37/18 , C07D301/06 , C07D301/08 , Y02P20/588
摘要: A supported catalyst and a catalyst mixture, useful for the direct epoxidation of olefins, are disclosed. The supported catalyst comprises a noble metal, lead, and a carrier that has been treated by contacting with nitric acid. The catalyst mixture comprises a titanium or vanadium zeolite and the supported catalyst. The invention also includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst mixture. The process results in significantly reduced alkane byproduct formed by the hydrogenation of olefin.
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公开(公告)号:US07470801B1
公开(公告)日:2008-12-30
申请号:US11977359
申请日:2007-10-24
申请人: Roger A. Grey
发明人: Roger A. Grey
IPC分类号: C07D301/06
CPC分类号: C07D301/06 , C07D301/08
摘要: Catalyst mixtures useful for the direct epoxidation of olefins are disclosed. The catalyst mixture comprises a titanium or vanadium zeolite and a supported catalyst comprising a noble metal, bismuth, and a carrier. The invention includes a process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of the catalyst mixture. The process results in significantly reduced alkane byproduct formed by the hydrogenation of olefin.
摘要翻译: 公开了用于烯烃的直接环氧化的催化剂混合物。 催化剂混合物包含钛或钒沸石和包含贵金属,铋和载体的载体催化剂。 本发明包括一种生产环氧化物的方法,包括在催化剂混合物存在下使烯烃,氢和氧反应。 该方法可显着减少由烯烃氢化形成的烷烃副产物。
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公开(公告)号:US07387981B1
公开(公告)日:2008-06-17
申请号:US11823651
申请日:2007-06-28
申请人: Mark P. Kaminsky , Roger A. Grey , Jay F. Miller
发明人: Mark P. Kaminsky , Roger A. Grey , Jay F. Miller
IPC分类号: B01J23/44
CPC分类号: B01J29/89 , B01J21/063 , B01J23/38 , B01J23/44 , B01J23/52 , B01J23/66 , B01J35/0006 , B01J35/023 , B01J35/1019 , B01J37/0009 , B01J2229/20 , C07D301/10
摘要: A catalyst comprising a transition metal zeolite and a supported noble metal is disclosed. The mean mass diameter of the catalyst is greater than 0.5 mm. The catalyst is formed from transition metal zeolite particles and the supported noble metal particles each having a mean mass diameter of less than 0.1 mm. An epoxidation process by reacting an olefin, hydrogen, and oxygen in the presence of the catalyst is disclosed.
摘要翻译: 公开了一种包含过渡金属沸石和负载的贵金属的催化剂。 催化剂的平均质量直径大于0.5mm。 催化剂由平均质量直径小于0.1mm的过渡金属沸石颗粒和负载的贵金属颗粒形成。 公开了在催化剂存在下使烯烃,氢气和氧气反应的环氧化方法。
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公开(公告)号:US07057056B1
公开(公告)日:2006-06-06
申请号:US11016053
申请日:2004-12-17
申请人: Kun Qin , Roger A. Grey , Peter J. Whitman
发明人: Kun Qin , Roger A. Grey , Peter J. Whitman
IPC分类号: C07D301/19 , C07D301/12
CPC分类号: C07D301/12 , B01J29/04 , B01J29/89 , B01J37/0045 , B01J37/0203 , B01J2229/20 , B01J2229/37 , C07D303/04
摘要: Titanium or vanadium zeolites are pretreated by contacting with an amino polyacid compound, such as ethylenediaminetetraacetic acid or a salt thereof, prior to use in olefin epoxidation with hydrogen peroxide.
摘要翻译: 在用过氧化氢进行烯烃环氧化之前,通过与氨基多酸化合物如乙二胺四乙酸或其盐接触来预处理钛或钒沸石。
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公开(公告)号:US06867312B1
公开(公告)日:2005-03-15
申请号:US10802690
申请日:2004-03-17
申请人: John C. Jubin, Jr. , Roger A. Grey
发明人: John C. Jubin, Jr. , Roger A. Grey
IPC分类号: C07D301/03 , C07D301/12
CPC分类号: C07D301/12
摘要: Propylene oxide is formed in a two step reaction wherein in a first step oxygen and hydrogen are reacted in the absence of propylene to form hydrogen peroxide and in a second step propylene is reacted with the formed hydrogen peroxide to form propylene oxide, the same solid noble metal on TS-1 catalyst being used to catalyze the reaction in each step.
摘要翻译: 环氧丙烷以两步反应形成,其中在第一步中,氧和氢在不存在丙烯的情况下反应形成过氧化氢,第二步丙烯与形成的过氧化氢反应形成环氧丙烷,相同的固体贵金属 TS-1催化剂上的金属用于催化每个步骤中的反应。
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