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1. 发明授权

US5030609A Process for producing a hydrogenation catalyst of copper chromite 失效
标题翻译：亚铬酸铜加氢催化剂的制备方法
公开(公告)号：US5030609A
公开(公告)日：1991-07-09
申请号：US224686
申请日：1988-07-27
申请人： Keith Turner , Mohammad Sharif , John Scarlett , Anthony B. Carter , Geoffrey Webb
发明人： Keith Turner , Mohammad Sharif , John Scarlett , Anthony B. Carter , Geoffrey Webb
IPC分类号： C07D295/02 , B01J23/86 , B01J35/10 , B01J37/08 , B01J37/18 , C07B31/00 , C07B35/02 , C07B61/00 , C07C27/00 , C07C29/136 , C07C29/14 , C07C29/141 , C07C29/145 , C07C29/149 , C07C31/20 , C07C33/22 , C07C67/00 , C07D307/08 , C07D307/33
CPC分类号： B01J37/08 , B01J23/868 , B01J35/0053 , B01J35/006 , B01J37/18
摘要： A copper chromite hydrogenation catalyst of enhanced activity is obtained by an ante-pre-reduction treatment in which a copper chromite catalyst precursor is soaked in a reducing atmosphere at temperatures below a pre-reduction temperature (typically about 140.degree. C.) at which appreciable pre-reduction of the catalyst can be detected. This catalyst is characterized by particles of reduced copper substantially all of which have an average particle size of less than about 300.times.10.sup.-10 m (300.ANG.), which have an average particle size of less than about 100.times.10.sup.-10 m (100.ANG.), and which are substantially uniformly distributed on a chromium-containing support. Typically such catalysts exhibit a copper surface area of about 18.5 m.sup.2 /g as determined by N.sub.2 O decomposition at 20.degree. C., compared to a corresponding copper surface area of 4.5 m.sup.2 /g for a catalyst which has been produced by conventional pre-reduction of the same catalyst precursor.

2. 发明授权

US4751334A Process for the production of butane-1,4-diol 失效
标题翻译：丁烷-1,4-二醇的制备方法
公开(公告)号：US4751334A
公开(公告)日：1988-06-14
申请号：US901450
申请日：1986-07-21
申请人： Keith Turner , Mohammad Sharif , Colin Rathmell , John W. Kippax , Anthony B. Carter , John Scarlett , Arthur J. Reason , Norman Harris
发明人： Keith Turner , Mohammad Sharif , Colin Rathmell , John W. Kippax , Anthony B. Carter , John Scarlett , Arthur J. Reason , Norman Harris
IPC分类号： C07C29/149 , C07C29/17 , C07D307/08 , C07C29/136 , C07C31/20
CPC分类号： C07C29/149 , C07C29/177 , C07D307/08
摘要： Butane-1,4-diol is produced by vapor phase hydrogenolysis of an alkyl ester of a C.sub.4 dicarboxylic acid, e.g. diethyl maleate, over a reduced Cu-Cr or Cu-Zn mixed oxide catalyst. Two adiabatic hydrogenolysis zones are used. The mixture exiting the first of these zones is cooled (by, for example, 5.degree. C.) and the resulting cooled mixture is fed to the second zone in which is reequilibriates at a lower temperature to increase the butane-1,4-diol yield at the expense of gamma-butyrolactone. Typical reaction conditions include use of temperatures of 150.degree. C. to 200.degree. C., pressures of 25 to 70 bar, and a H.sub.2 :ester molar ratio of 100:1 to 800:1. When using a maleate ester it is often advantageous to hydrogenate this to the corresponding succinate ester in an upstream hydrogenation zone prior to entry to the first hyrogenolysis zone.
摘要翻译： PCT No.PCT / GB85 / 00524 Sec。一九八六年七月二十一日 102（e）日期1986年7月21日PCT提交1985年11月18日PCT公布。出版物WO86 / 03189 日期：1986年6月5日。丁烷-1,4-二醇是通过C4二羧酸烷基酯的气相氢解制备的。马来酸二乙酯，还原的Cu-Cr或Cu-Zn混合氧化物催化剂。使用两个绝热的氢解区。将离开这些区域中的第一个区域的混合物冷却（例如5℃），将得到的冷却的混合物进料至第二区域，在较低温度下将其重新配位，以增加丁烷-1,4-二醇产量以γ-丁内酯为代价。典型的反应条件包括使用150℃至200℃的温度，25至70巴的压力和100:1至800:1的H 2：酯摩尔比。当使用马来酸酯时，通常有利的是在进入第一个氢解区之前将其氢化为上游氢化区中的相应的琥珀酸酯。

3. 发明授权

US4584419A Process for the production of butane-1,4-diol 失效
标题翻译：制备丁烷-1,4-二醇的方法
公开(公告)号：US4584419A
公开(公告)日：1986-04-22
申请号：US673797
申请日：1984-11-21
申请人： Mohammad Sharif , Keith Turner
发明人： Mohammad Sharif , Keith Turner
IPC分类号： C07C29/132 , B01J31/00 , C07B61/00 , C07C27/00 , C07C29/149 , C07C29/17 , C07C31/20 , C07C67/00 , C07D315/00 , C07D317/08 , H02P25/06 , C07C29/136
CPC分类号： C07D315/00 , C07C29/149 , C07C29/177 , C07D317/08
摘要： A process for the production of butane-1,4-diol comprises hydrogenating a di(C.sub.1 to C.sub.3 alkyl) ester of a C.sub.4 dicarboxylic acid, e.g. an ester of a but-2-en-1,4-dioic acid, such as diethyl maleate, in the vapor phase at a temperature of from about 150.degree. C. to about 240.degree. C. and at a pressure in the range of from about 25 bar to about 75 bar in the presence of a reduced copper chromite catalyst, and recovering resulting butane-1,4-diol containing reaction product. The catalyst contains, before reduction, from about 25 to about 45% by weight of copper and from about 20 to about 35% by weight of chromium and preferably has an internal surface area of at least about 30 sq. m. per gram. The process is preferably conducted in two or more reaction zones, which are preferably operated adiabatically, the feed temperature to the first zone being higher than that to at least one subsequent reaction zone.
摘要翻译：制备丁烷-1,4-二醇的方法包括使C4二羧酸的二（C1-C3烷基）酯例如氢化。异丁烯-1,4-二酸如马来酸二乙酯的酯在气相中在约150℃至约240℃的温度和在在还原的亚铬酸铜催化剂存在下，从约25巴至约75巴，并回收得到的含丁烷-1,4-二醇的反应产物。催化剂在还原前含有约25至约45重量％的铜和约20至约35重量％的铬，优选具有至少约30平方米的内表面积。每克。该方法优选在两个或更多个反应区中进行，优选以绝热方式操作，第一区的进料温度高于至少一个后续反应区的进料温度。

4. 发明授权

US5434313A Aldolisation-dehydration process 失效
标题翻译：醛化脱水工艺
公开(公告)号：US5434313A
公开(公告)日：1995-07-18
申请号：US313298
申请日：1994-10-06
申请人： George E. Harrison , Arthur J. Reason , Alan J. Dennis , Mohammad Sharif
发明人： George E. Harrison , Arthur J. Reason , Alan J. Dennis , Mohammad Sharif
IPC分类号： B01J23/04 , B01J27/232 , C07B61/00 , C07C45/66 , C07C45/72 , C07C45/74 , C07C45/81 , C07C45/82 , C07C47/19 , C07C47/21 , C07C47/22
CPC分类号： C07C45/66 , C07C45/72 , C07C45/74 , C07C45/81 , C07C45/82 , Y02P20/584
摘要： An aldolisation-dehydration process is disclosed for converting an aldehyde, e.g. n-valeraldehyde, to a substituted acrolein, e.g. propyl butyl acrolein (2-propylhept-2-enal). Aldolisation and dehydration are effected in a stirred tank reactor (16; 111) using an alkali catalyst, such as sodium hydroxide. A reaction product stream (23; 113) containing both organic and aqueous phases is distilled (in column 25; 123) to yield a heterogeneous azeotrope containing water and aldehyde. On condensation and phase separation the lower water layer (34; 150) can be discharged from the plant without the need for neutralisation. From the bottom of the distillation zone a mixture (36;157) of substituted acrolein and alkali catalyst solution is obtained. The substituted acrolein is recovered as product (45;173), while the catalyst solution (47;175) is recycled to the aldolisation reactor. Part (49; 181) of the catalyst solution is purged to control the level of Cannizzaro reaction products.
摘要翻译： PCT No.PCT / GB93 / 00729 Sec。 371日期：1994年10月6日 102（e）日期1994年10月6日PCT提交1993年4月7日PCT公布。公开号WO93 / 20034 日期为1993年10月14日。公开了醛脱水脱水方法，用于转化醛，例如正戊醛，取代的丙烯醛，例如丙基丁基丙烯醛（2-丙基庚-2-烯醛）。使用碱催化剂如氢氧化钠在搅拌釜反应器（16; 111）中进行醛化和脱水。蒸馏含有有机相和水相的反应产物流（23; 113）（在第25列;第123列），得到含有水和醛的非均相共沸物。在冷凝和相分离时，下水层（34; 150）可以从设备中排出而不需要中和。从蒸馏区的底部获得取代的丙烯醛和碱催化剂溶液的混合物（36; 157）。将取代的丙烯醛作为产物（45; 173）回收，同时催化剂溶液（47; 175）再循环到醛醇化反应器中。将催化剂溶液的部分（49; 181）吹扫以控制Cannizzaro反应产物的水平。

5. 发明授权

US5426207A Continuous production process of diarylcarbonates 失效
标题翻译：二芳基碳酸酯的连续生产工艺
公开(公告)号：US5426207A
公开(公告)日：1995-06-20
申请号：US142125
申请日：1993-10-28
申请人： George E. Harrison , Alan J. Dennis , Mohammad Sharif
发明人： George E. Harrison , Alan J. Dennis , Mohammad Sharif
IPC分类号： C07C68/06 , C07C69/96
CPC分类号： C07C68/06 , Y02P20/582
摘要： A diaryl carbonate is produced by transesterification of a dialkyl carbonate, such as dimethyl carbonate, with an aromatic hydroxy compound, such as phenol, in three successive reaction zones. A transesterification catalyst, such as a titanate ester or ester mixture is used in each zone. Conditions are selected to maximize formation of alkyl aryl carbonate in the first and second reaction zones, while conversion to diaryl carbonate is favored in the third reaction zone. The vaporous mixture from the first two reaction zones is a mixture containing alkyl alcohol, dialkyl carbonate, alkyl aryl carbonate and aromatic hydroxy compound. This mixture is separated in an alkyl alcohol recovery zone by distillation in the distillation columns to produce useful recycle streams. The second of these distillation columns can be operated at a lower pressure than the first, thus enabling the heat of vaporization of this mixture to be used as the source of heat for the reboiler of the second distillation column of the alkyl alcohol recovery zone.
摘要翻译：碳酸二芳基酯通过碳酸二烷基酯如碳酸二甲酯与芳族羟基化合物如苯酚在三个连续的反应区中进行酯交换来制备。在每个区域中使用酯交换催化剂，例如钛酸酯或酯混合物。选择条件以最大限度地在第一和第二反应区中形成碳酸烷基芳基酯，同时在第三反应区中转化为碳酸二芳基酯是有利的。来自前两个反应区的气态混合物是含有烷基醇，碳酸二烷基酯，碳酸烷基芳基酯和芳族羟基化合物的混合物。在蒸馏塔中通过蒸馏在烷基醇回收区中分离该混合物以产生有用的再循环流。这些蒸馏塔中的第二个可以在比第一蒸馏塔低的压力下操作，从而使得该混合物的蒸发热能用作烷基醇回收区的第二蒸馏塔的再沸器的热源。

6. 发明授权

US07553397B1 Process 失效
标题翻译：处理
公开(公告)号：US07553397B1
公开(公告)日：2009-06-30
申请号：US09806180
申请日：1999-09-29
申请人： Stephen William Colley , Christopher Richard Fawcett , Mohammad Sharif , Michael William Marshall Tuck , David John Watson , Michael Anthony Wood
发明人： Stephen William Colley , Christopher Richard Fawcett , Mohammad Sharif , Michael William Marshall Tuck , David John Watson , Michael Anthony Wood
IPC分类号： B01D3/00 , C07C45/82 , C07C67/54
CPC分类号： C07C67/54 , C07C69/14
摘要： A process is described for the recovery of substantially pure ethyl acetate from a feedstock including ethyl acetate, ethanol and water. The process includes supplying the feedstock to a first distillation zone maintained under first distillation conditions effective for distilling from the feedstock a first distillate including ethyl acetate, ethanol, and less than about 10 mol % water. The first distillate is recovered from the first distillation zone and is supplied to a second distillation zone maintained under second distillation conditions, which include use of a higher pressure than that of the first distillation zone. The second distillation conditions are effective for distilling from the first distillate a second distillate including ethanol, water, and a minor proportion of ethyl acetate and yielding a substantially pure ethyl acetate bottom product, which is recovered. The second distillate is returned to the first distillation zone.
摘要翻译：描述了从包括乙酸乙酯，乙醇和水的原料中回收基本上纯的乙酸乙酯的方法。该方法包括将原料供应到第一蒸馏区，该第一蒸馏区保持在有效地从原料蒸馏出的第一馏出物的第一蒸馏区，所述第一蒸馏物包括乙酸乙酯，乙醇和小于约10mol％的水。将第一馏出物从第一蒸馏区回收并供给到保持在第二蒸馏条件下的第二蒸馏区，其包括使用比第一蒸馏区高的压力。第二蒸馏条件对于从第一馏出物蒸馏出第二馏出物是有效的，第二馏出物包括乙醇，水和少量的乙酸乙酯，并产生基本上纯的乙酸乙酯底部产物，其被回收。第二馏出物返回到第一蒸馏区。

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