专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1986007358A1 PROCESS FOR THE PRODUCTION OF GAMMA-BUTYROLACTONE 审中-公开
标题翻译：生产γ-丁内酯的方法
公开(公告)号：WO1986007358A1
公开(公告)日：1986-12-18
申请号：PCT/GB1986000315
申请日：1986-06-04
申请人： DAVY McKEE (LONDON) LIMITED , TURNER, Keith , SHARIF, Mohammad , RATHMELL, Colin , KIPPAX, John, Wilson , CARTER, Anthony, Benjamin , SCARLETT, John , REASON, Arthur, James , HARRIS, Norman
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07D307/32
CPC分类号： C07D315/00
摘要： Gamma-butyrolactone is produced by vapour phase hydrogenolysis of an alkyl ester of a C4 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 heated (by, for example 5 C) and the resulting heated mixture is fed to the second zone in which it reequilibriates at a higher temperature to increase the butane-1,4-diol yield at the expense of butane-1,4-diol. Typical reaction conditions include use of temperatures of 190 C to 260 C, pressures of 3 to 30 bar, and an H2:ester molar ratio of 50:1 to 1000:1.
摘要翻译： γ-丁内酯是通过C4二羧酸的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。将离开第一个这些区域的混合物加热（通过例如5℃），并将所得加热的混合物进料至其在较高温度下重新相容的第二区域以增加丁烷-1,4-二醇以丁烷-1,4-二醇为代价。典型的反应条件包括使用190℃至260℃的温度，3至30巴的压力和50:1至1000:1的H 2：酯摩尔比。

2. 发明申请

WO2013041836A1 APPARATUS AND METHOD 审中-公开
标题翻译：装置和方法
公开(公告)号：WO2013041836A1
公开(公告)日：2013-03-28
申请号：PCT/GB2012/052098
申请日：2012-08-24
申请人： DAVY PROCESS TECHNOLOGY LIMITED , MCKINLEY, Donald Hugh , HENSMAN, John Richard , KIPPAX, John Wilson
发明人： MCKINLEY, Donald Hugh , HENSMAN, John Richard , KIPPAX, John Wilson
IPC分类号： B01J8/22 , B01J8/00 , C07C67/08 , B01D3/16
CPC分类号： B01J8/0492 , B01J8/003 , B01J8/0035 , B01J8/22 , B01J8/228 , B01J2208/00752 , B01J2208/00761 , B01J2208/00893 , B01J2208/02 , C07C67/08 , C07C67/54 , Y02P20/127
摘要： An apparatus for use in heterogeneous catalytic reactions comprising a column reactor comprising a plurality of trays mounted one above another, each adapted to hold a predetermined liquid volume and a charge of particles of a solid catalyst thereon; means for introducing a liquid phase reactant above the uppermost tray; means for introducing a vapour phase reactant below the lowermost tray; means for removing a liquid phase post-reaction stream from below the lowermost tray; means for removing a vapour phase post-reaction stream from above the uppermost tray; vapour upcomer means associated with each tray adapted to allow vapour to enter that tray from below; underflow means associated with each tray adapted to remove liquid from that tray and the column reactor before being introduced into the column reactor at a lower tray; means for temporarily directing said liquid removed from a tray to bypass at least one lower tray and be reintroduced to the column reactor at a tray located below said at least one bypassed tray; means for removing the liquid and catalyst from said at least one bypassed tray: and means for replacing a liquid and catalyst inventory on said at least one bypassed tray.
摘要翻译：一种用于非均相催化反应的装置，包括塔反应器，该塔反应器包括多个安装在另一塔板上的托盘，每个托盘适于保持预定液体体积和固体催化剂颗粒的装料; 用于在最上面的托盘上引入液相反应物的装置; 用于在最下面的塔板下方引入汽相反应物的装置; 用于从最下面的塔盘下面除去液相后反应物流的装置; 用于从最上面的托盘上方除去气相后反应物流的装置; 与适于允许蒸汽从下方进入该托盘的每个托盘相关联的蒸气升降装置; 与每个托盘相关联的下溢装置，其适于在下塔板引入塔式反应器之前从该托盘和塔式反应器中除去液体; 用于临时引导从托盘移除的所述液体绕过至少一个下托盘的装置，并在位于所述至少一个旁路托盘下方的托盘处重新引入塔反应器; 用于从所述至少一个旁路托盘去除液体和催化剂的装置;以及用于更换所述至少一个旁路托盘上的液体和催化剂库存的装置。

3. 发明申请

WO1986003189A1 PROCESS FOR THE PRODUCTION OF BUTANE-1,4-DIOL 审中-公开
标题翻译：生产丁-1,4-二醇的方法
公开(公告)号：WO1986003189A1
公开(公告)日：1986-06-05
申请号：PCT/GB1985000524
申请日：1985-11-18
申请人： DAVY McKEE (LONDON) LIMITED , TURNER, Keith , SHARIF, Mohammad , RATHMELL, Colin , KIPPAX, John, Wilson , CARTER, Anthony, Benjamin , SCARLETT, John , REASON, Arthur, James , HARRIS, Norman
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07C29/17
CPC分类号： C07C29/149 , C07C29/177 , C07D307/08 , C07C31/207
摘要： Butane-1,4-diol is produced by vapour phase hydrogenolysis of an alkyl ester of a C4 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 C) and the resulting cooled mixture is fed to the second zone in which it 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 C to 200 C, pressures of 25 to 70 bar, and a H2: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 hydrogenolysis zone.
摘要翻译：丁烷-1,4-二醇是通过C4二羧酸的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（通过例如5℃），并将所得冷却的混合物进料至其在较低温度下重新相容化的第二区域以增加丁烷-1,4- 以γ-丁内酯为代价的二醇产率。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氢解区之前将其氢化为上游氢化区中的相应的琥珀酸酯。

4. 发明申请

WO1988000937A1 PROCESS FOR THE CO-PRODUCTION OF BUTANE-1,4-DIOL AND GAMMA-BUTYROLACTONE 审中-公开
标题翻译：合成1,4-丁二醇和γ-丁内酯的方法
公开(公告)号：WO1988000937A1
公开(公告)日：1988-02-11
申请号：PCT/GB1987000547
申请日：1987-07-31
申请人： DAVY McKEE (LONDON) LIMITED , TURNER, Keith , SHARIF, Mohammad , RATHMELL, Colin , KIPPAX, John, Wilson , CARTER, Anthony, Benjamin , SCARLETT, John , REASON, Arthur, James , HARRIS, Norman , HARRISON, George, Edwin , WOOD, Michael, Anthony
发明人： DAVY McKEE (LONDON) LIMITED
IPC分类号： C07C29/136
CPC分类号： C07D315/00 , C07C29/177 , C07C31/207
摘要： A process for the co-production of butane-1,4-diol and gamma-butyrolactone which comprises: (a) esterifying maleic anhydride by reaction with an alkyl alcohol to form the corresponding dialkyl maleate; (b) hydrogenating resulting dialkyl maleate to yield a reaction product mixture comprising said alkyl alcohol, butane-1,4-diol and gamma-butyrolactone; (c) recovering alkyl alcohol from said reaction product mixture; (d) recycling recovered alkyl alcohol to step (a); and (e) recovering butane-1,4-diol and gamma-butyrolactone from the reaction product mixture of step (c); wherein said process comprises: (i) continuously supplying maleic anhydride and a molar excess of an alkyl alcohol to a monoesterification zone maintained at an elevated temperature thereby to form the corresponding mono-alkyl maleate; (ii) continuously supplying resulting mono-alkyl maleate in admixture with a molar excess of said alkyl alcohol to a primary catalytic esterification zone containing a charge of a solid esterification catalyst and maintained under esterification conditions thereby to form an intermediate ester-containing mixture containing a major amount of the corresponding dialkyl maleate and a minor amount of said mono-alkyl maleate; (iii) continuously supplying a first liquid feed comprising said monoalkyl maleate to a secondary esterification zone containing a charge of a solid esterification catalyst; (iv) continuously supplying a second feed stream comprising said alkyl alcohol to said secondary esterification zone; (v) maintaining said secondary esterification zone at an elevated temperature sufficient to form or maintain therein a vaporous stream containing said alkyl alcohol; (vi) intimately contacting said first liquid feed in said secondary esterification zone in the presence of said catalyst with said vaporous stream; (vii) recovering from said secondary esterification zone a vaporous effluent stream containing, in addition to alkyl alcohol vapour, also water in vapour form, said water being produced in said secondary esterification zone by esterification of said monoalkyl maleate with said alkyl alcohol; (viii) recovering from said secondary esterification zone a liquid product containing said dialkyl maleate; (ix) vaporising dialkyl maleate produced in said secondary esterification zone in a stream of a hydrogen-containing gas; (x) passing resulting vaporous dialkyl maleate containing stream through a plurality of hydrogenation zones connected in series, each containing a charge of a solid esterification catalyst and each maintained under ester hydrogenation conditions; (xi) controlling the reaction conditions in each of the plurality of hydrogenation zones so as to produce a predetermined butane-1,4-diol:gamma-butyrolactone molar ration in the reaction product mixture; and (xii) recovering from the reaction product mixture (1) an alkyl alcohol fraction, (2) a butane-1,4-diol fraction, and (3) a gamma-butyrolactone fraction.
摘要翻译：共同生产丁烷-1,4-二醇和γ-丁内酯的方法，其包括：（a）通过与烷基醇反应酯化马来酸酐以形成相应的马来酸二烷基酯; （b）将得到的马来酸二烷基酯氢化，得到包含所述烷基醇，丁烷-1,4-二醇和γ-丁内酯的反应产物混合物; （c）从所述反应产物混合物中回收烷基醇; （d）将回收的烷基醇再循环到步骤（a）中; 和（e）从步骤（c）的反应产物混合物中回收丁烷-1,4-二醇和γ-丁内酯; 其中所述方法包括：（i）将马来酸酐和摩尔过量的烷基醇连续供应到保持在升高的温度下的单酯化区，从而形成相应的马来酸单烷基酯; （ii）将所得马来酸单烷基酯与摩尔过量的所述烷基醇连续供应到含有固体酯化催化剂装料的初级催化酯化区，并保持在酯化条件下，从而形成含中间体含酯混合物，主要量的相应的马来酸二烷基酯和少量的所述马来酸单烷基酯; （iii）将包含所述马来酸单烷基酯的第一液体进料连续供给到含有固体酯化催化剂的二次酯化区; （iv）将包含所述烷基醇的第二进料流连续供应到所述仲酯化区; （v）将所述仲酯化区保持在足以在其中形成或保持含有所述烷基醇的蒸气流的高温下; （vi）在所述催化剂存在下使所述第二液体进料与所述蒸气流紧密接触; （vii）从所述次级酯化区回收除了烷基醇蒸气以外还含有蒸气形式的水的蒸气流出物流，所述水在所述仲酯化区中通过所述马来酸单烷基酯与所述烷基醇的酯化反应产生; （viii）从所述仲酯化区回收含有所述马来酸二烷基酯的液体产物; （ix）在含氢气体的气流中在所述二级酯化区中产生的马来酸二烷基酯蒸发; （x）将所得的含马来酸二烷基酯的物流通过串联连接的多个氢化区，每个含有固体酯化催化剂的电荷，并分别保持在酯氢化条件下; （xi）控制多个氢化区中的每一个中的反应条件，以便在反应产物混合物中产生预定的丁烷-1,4-二醇：γ-丁内酯摩尔比; 和（xii）从反应产物混合物（1）中回收烷基醇馏分，（2）丁烷-1,4-二醇馏分和（3）γ-丁内酯馏分。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式