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公开(公告)号:US5210229A
公开(公告)日:1993-05-11
申请号:US915076
申请日:1992-07-16
申请人: Tatsumi Ichiki , Kaori Mori , Sadakatsu Suzuki , Hiroshi Ueno , Kenji Kobayashi
发明人: Tatsumi Ichiki , Kaori Mori , Sadakatsu Suzuki , Hiroshi Ueno , Kenji Kobayashi
IPC分类号: A61F13/15 , C07D315/00
CPC分类号: C07D315/00 , A61F2013/530051 , A61F2013/530058 , A61F2013/530072 , A61F2013/530087
摘要: Gamma-butyrolactone is prepared by catalytic dehydrogenation of 1,4-butanediol in a gaseous phase in the presence of a catalyst comprising copper, chromium, and manganese and/or barium. Improvement is in that the catalyst further contains sodium and/or potassium, whereby formation of by-products is suppressed and high yield, high selectivity and prolonged catalyst life are attained.
摘要翻译: 通过在包含铜,铬和锰和/或钡的催化剂存在下,以气相的1,4-丁二醇的催化脱氢制备γ-丁内酯。 改进之处在于,催化剂还含有钠和/或钾,从而抑制副产物的形成,并获得高产率,高选择性和延长的催化剂寿命。
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公开(公告)号:US5854161A
公开(公告)日:1998-12-29
申请号:US973942
申请日:1997-10-10
申请人: Tatsumi Ichiki , Nagato Hamashima , Teiji Nakamura , Masayuki Asami , Sadakatsu Suzuki , Hiroshi Ueno
发明人: Tatsumi Ichiki , Nagato Hamashima , Teiji Nakamura , Masayuki Asami , Sadakatsu Suzuki , Hiroshi Ueno
CPC分类号: B01J27/285 , B01J38/00
摘要: A process is provided for the regeneration of a vanadium-phosphorus oxide catalyst which has been used in a process for the preparation of maleic anhydride by oxidizing butane. The used catalyst particles are removed from the fluidized bed reactor and subjected to impact with each other and/or with structural surfaces such that the deteriorated layer is peeled away. Various forms of equipment may be employed such as pneumatic classifiers, jet mills and jetted fluidized beds.
摘要翻译: PCT No.PCT / US96 / 05688 Sec。 371日期:1997年10月10日 102(e)日期1997年10月10日PCT提交1996年4月24日PCT公布。 出版物WO96 / 33804 日期1996年10月31日提供了用于通过氧化丁烷制备马来酸酐的方法中使用的钒 - 磷氧化物催化剂的再生方法。 将所使用的催化剂颗粒从流化床反应器中除去并相互冲击和/或与结构表面进行冲击,使得劣化层被剥离。 可以使用各种形式的设备,例如气动分级机,喷射磨机和喷射流化床。
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公开(公告)号:US5326889A
公开(公告)日:1994-07-05
申请号:US971495
申请日:1992-11-04
申请人: Sadakatsu Suzuki , Tatsumi Ichiki , Hiroshi Ueno
发明人: Sadakatsu Suzuki , Tatsumi Ichiki , Hiroshi Ueno
IPC分类号: B01J23/72 , B01J23/86 , C07B61/00 , C07C27/04 , C07C29/149 , C07C31/20 , C07D307/08 , C07D307/33 , C07D27/06
CPC分类号: C07D307/08 , C07C29/149
摘要: There is disclosed a process for the production of 1,4-butanediol and tetrahydrofuran by the catalytic hydrogenation in the gas phase of .gamma.-butyrolactone using a solid catalyst comprising copper and silicon, copper, chromium, and manganese or copper, chromium, manganese and barium.
摘要翻译: 公开了使用包含铜和硅,铜,铬和锰或铜,铬,锰和锰的固体催化剂,通过在γ-丁内酯的气相中的催化氢化生产1,4-丁二醇和四氢呋喃的方法, 钡。
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公开(公告)号:US5099038A
公开(公告)日:1992-03-24
申请号:US616488
申请日:1990-11-21
申请人: Sadakatsu Suzuki , Tatsumi Ichiki , Hiroshi Ueno
发明人: Sadakatsu Suzuki , Tatsumi Ichiki , Hiroshi Ueno
IPC分类号: B01J23/72 , B01J23/86 , C07B61/00 , C07C27/04 , C07C29/149 , C07C31/20 , C07D307/08 , C07D307/33
CPC分类号: C07D307/08 , C07C29/149
摘要: There is disclosed a process for the production of 1,4-butanediol and tetrahydrofuran by the catalytic hydrogenation in the gas phase of .gamma.-butyrolactone using a solid catalyst comprising copper and silicon, copper, chromium, and manganese or copper, chromium, manganese and barium.
摘要翻译: 公开了使用包含铜和硅,铜,铬和锰或铜,铬,锰和锰的固体催化剂,通过在γ-丁内酯的气相中的催化氢化生产1,4-丁二醇和四氢呋喃的方法, 钡。
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