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公开(公告)号:US5508019A
公开(公告)日:1996-04-16
申请号:US269292
申请日:1994-06-30
申请人: Robert J. Saxton , Guy L. Crocco , John G. Zajacek
发明人: Robert J. Saxton , Guy L. Crocco , John G. Zajacek
CPC分类号: C01B37/02 , B01J29/7007 , C01B39/026 , B01J2229/16 , B01J2229/34 , B01J2229/37 , Y10S423/27
摘要: Crystalline aluminosilicates such as zeolite beta may be readily dealuminated using organic sulfonic acids such as methanesulfonic acid to provide useful catalysts or catalyst precursors. A high degree of aluminum removal with minimal loss of crystallinity is possible even when an organic template is not present in the starting aluminosilicate.
摘要翻译: 结晶硅铝酸盐如β沸石可以使用有机磺酸如甲磺酸容易地脱铝,以提供有用的催化剂或催化剂前体。 即使在起始铝硅酸盐中不存在有机模板,也可以以最小的结晶损失进行高度的铝去除。
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公开(公告)号:US5506363A
公开(公告)日:1996-04-09
申请号:US934643
申请日:1992-09-04
IPC分类号: B01J31/16 , B01J23/44 , B01J27/198 , B01J27/199 , C07B61/00 , C07C29/141 , C07C45/28 , C07C45/30 , C07C45/34 , C07C47/06 , C07C49/10
CPC分类号: B01J23/002 , B01J23/44 , B01J27/198 , B01J27/199 , C07C29/141 , C07C45/28 , C07C45/30 , B01J2523/00
摘要: The present invention provides aqueous catalyst solutions useful for oxidation of olefins to carbonyl products, comprising a palladium catalyst, a polyoxoacid or polyoxoanion oxidant comprising vanadium, and chloride ions. It also provides processes for oxidation of olefins to carbonyl products, comprising contacting olefin with the aqueous catalyst solutions of the present invention. It also provides processes for oxidation of olefins to carbonyl products by dioxygen, comprising contacting olefin with the aqueous catalyst solutions of the present invention, and further comprising contacting dioxygen with the aqueous catalyst solutions. The present invention also provides a process for the oxidation of palladium(0) to palladium(II) comprising contacting the palladium(0) with an aqueous solution comprising chloride ions and a polyoxoacid or polyoxoanion oxidant comprising vanadium.
摘要翻译: PCT No.PCT / US91 / 01508 Sec。 371日期:1992年9月4日 102(e)日期1991年5月24日PCT 1991年3月5日PCT公布。 WO91 / 13851 PCT出版物 日本1991年9月19日。本发明提供了用于将烯烃氧化成羰基产物的含水催化剂溶液,其包含钯催化剂,包含钒和氯离子的聚氧酸或聚氧阴离子氧化剂。 它还提供了将烯烃氧化成羰基产物的方法,包括使烯烃与本发明的含水催化剂溶液接触。 它还提供了通过双氧将烯烃氧化成羰基产物的方法,包括使烯烃与本发明的含水催化剂溶液接触,并且还包括使二氧化铈与含水催化剂溶液接触。 本发明还提供了将钯(0)氧化成钯(II)的方法,包括使钯(0)与包含氯离子的水溶液和包含钒的多氧酸或多氧阴离子氧化剂接触。
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公开(公告)号:US5453511A
公开(公告)日:1995-09-26
申请号:US329732
申请日:1994-10-26
申请人: Robert J. Saxton
发明人: Robert J. Saxton
IPC分类号: B01J29/89 , C01B37/00 , C07B61/00 , C07D211/26 , C07D301/12 , C07D301/19 , C07D303/04 , C07D303/14 , C07D211/06 , C07D211/04
CPC分类号: C07D301/19 , B01J29/89 , C01B37/005 , C07D211/26 , C07D301/12 , C07D303/04 , Y10S423/27
摘要: A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide or an organic hydroperoxide is utilized as the oxidizing agent.
摘要翻译: 具有与沸石β同晶并且含有Si和Ti,但基本上不含骨架A1的骨架结构的结晶分子筛有效地催化其中使用过氧化氢或有机氢过氧化物作为氧化剂的烯烃环氧化。
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公开(公告)号:US4723041A
公开(公告)日:1988-02-02
申请号:US846554
申请日:1986-03-31
申请人: Janis Vasilevskis , Jacques C. De Deken , Robert J. Saxton , Paul R. Wentrcek , Jere D. Fellmann , Lyubov S. Kipnis
发明人: Janis Vasilevskis , Jacques C. De Deken , Robert J. Saxton , Paul R. Wentrcek , Jere D. Fellmann , Lyubov S. Kipnis
CPC分类号: C07C45/35 , B01J31/1805 , B01J31/28 , C07C45/34 , B01J2531/824
摘要: The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and isopolyoxoanions containing tungsten, molybdenum and vanadium, individually or in combination, are described. The use of copper as the redox-active metal component shows reduced allylic reactivity. The elimination of chloride from the catalyst system provides substantial engineering advantages over the prior art, particularly, the reduction of corrosion and chloro-organic by-product formation. The use of redox-active metal components and/or ligands makes the palladium-polyoxoanion catalyst system industrially practicable.
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公开(公告)号:US4720474A
公开(公告)日:1988-01-19
申请号:US779501
申请日:1985-09-24
申请人: Janis Vasilevskis , Jacques C. De Deken , Robert J. Saxton , Paul R. Wentrcek , Jere D. Fellmann , Lyubov S. Kipnis
发明人: Janis Vasilevskis , Jacques C. De Deken , Robert J. Saxton , Paul R. Wentrcek , Jere D. Fellmann , Lyubov S. Kipnis
IPC分类号: B01J31/04 , B01J27/02 , B01J27/055 , B01J27/06 , B01J27/188 , B01J27/195 , B01J31/16 , B01J31/18 , B01J31/28 , C07C45/34 , C07C45/35 , B01J31/02
CPC分类号: C07C45/35 , B01J31/1805 , B01J31/28 , C07C45/34 , B01J2531/824
摘要: The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and isopolyoxoanions containing tungsten, molybdenum and vanadium, individually or in combination, are described. The use of copper as the redox-active metal component shows reduced allylic reactivity. The elimination of chloride from the catalyst system provides substantial engineering advantages over the prior art, particularly, the reduction of corrosion and chloro-organic by-product formation. The use of redox-active metal components and/or ligands makes the palladium-polyoxoanion catalyst system industrially practicable.
摘要翻译: 或者或同时加入氧化还原活性金属组分和配体导致在聚氧乙烯存在下,钯催化的烯烃氧化成羰基产物的转化率和选择性提高。 在优选的模式中,描述了单独或组合地含有钨,钼和钒的杂多氧阴离子和异聚氧阴离子。 使用铜作为氧化还原活性金属组分显示出降低的烯丙基反应性。 与现有技术相比,从催化剂体系中除去氯化物提供了显着的工程优点,特别是减少腐蚀和氯 - 有机副产物形成。 使用氧化还原活性金属组分和/或配体使得钯 - 聚氧阴离子催化剂体系在工业上是可行的。
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