-
公开(公告)号：US08536369B2
公开(公告)日：2013-09-17
申请号：US12451004
申请日：2008-04-23
IPC分类号： C07C67/37
摘要： Process for producing methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide under substantially anhydrous conditions in the presence of a mordenite catalyst which has been ion-exchanged or otherwise loaded with at least one of silver and copper. The mordenite is also ion-exchanged or otherwise loaded with platinum in an amount in the range 0.05 to 10 mol % relative to aluminum.
摘要翻译： 在已经离子交换或以其它方式装载银和铜中的至少一种的丝光沸石催化剂的存在下，在基本无水条件下用一氧化碳羰基化二甲醚进料来生产乙酸甲酯的方法。 丝光沸石也以相对于铝的0.05至10mol％的量离子交换或以其它方式装载铂。
-
公开(公告)号：US20100121098A1
公开(公告)日：2010-05-13
申请号：US12451004
申请日：2008-04-23
IPC分类号： C07C67/36 , B01J29/068 , C07C51/093
摘要： Production of methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide under substantially anhydrous conditions, in the presence of a mordenite catalyst which contains copper and/or silver and 0.05 to 10 mol % platinum relative to aluminium.
摘要翻译： 在含有铜和/或银的丝光沸石催化剂和相对于铝的0.05至10mol％的铂的存在下，在基本无水的条件下，用一氧化碳羰基化二甲醚进料生产乙酸甲酯。
-
公开(公告)号：US20090124496A1
公开(公告)日：2009-05-14
申请号：US11666775
申请日：2005-11-02
IPC分类号： B01J21/04
CPC分类号： C10G2/331 , B01J21/06 , B01J21/063 , B01J23/75 , B01J23/8892 , B01J35/023 , B01J37/0045 , C10G49/02
摘要： A spray dried particulate catalyst comprising a catalytically active component, a carrier and optionally a catalyst promoter, is described. The catalyst has a decrease in average particle diameter following the Shear Test as described herein of 25% or less. The fraction of catalyst particles being less than 10 μm in size, can also be less than 20%. The present invention also provides a method of manufacturing a particulate catalyst material comprising preparing an aqueous slurry, spray drying the aqueous slurry using a spray drier with an inlet temperature of less than 300° C., and calcining the particulate obtained. The invention has found that catalyst strength may be improved by careful manipulation of the spray drying conditions. In particular, it has been found that a catalyst that is spray dried at a relatively low gas inlet temperature, preferably in the range of 200° C. to 250° C., shows advantageous attrition characteristics (in terms of attrition resistance) compared to catalysts prepared by spray drying at higher temperatures.
摘要翻译： 描述了包含催化活性组分，载体和任选的催化剂促进剂的喷雾干燥的颗粒催化剂。 如本文所述的剪切试验后，催化剂的平均粒径降低了25％以下。 小于10um的催化剂颗粒的分数也可以小于20％。 本发明还提供一种制造颗粒状催化剂材料的方法，包括制备含水浆料，使用入口温度低于300℃的喷雾干燥器喷雾干燥含水浆料，并煅烧所获得的颗粒。 本发明已经发现，通过仔细操作喷雾干燥条件可以提高催化剂强度。 特别地，已经发现在相对较低的气体入口温度下，优选在200℃至250℃的范围内喷雾干燥的催化剂显示出有利的磨损特性（在抗磨损方面）与 通过在较高温度下喷雾干燥制备的催化剂。
-
公开(公告)号：US20080153692A1
公开(公告)日：2008-06-26
申请号：US12041769
申请日：2008-03-04
申请人： Barbara Kimmich , Leslie E. Wade , Tao Wang , Andre Harmen Sijpkes , Roelandus Hendrikus Wilhelmus Moonen
发明人： Barbara Kimmich , Leslie E. Wade , Tao Wang , Andre Harmen Sijpkes , Roelandus Hendrikus Wilhelmus Moonen
IPC分类号： B01J21/06 , B01J23/02 , B01J23/10 , B01J23/44 , B01J21/00 , B01J23/48 , B01J23/28 , B01J23/20
CPC分类号： B01J23/682 , B01J21/063 , B01J21/066 , B01J21/08 , B01J23/44 , B01J23/52 , B01J23/58 , B01J23/63 , B01J23/648 , B01J37/0207 , B01J37/16 , B01J2219/00745 , B01J2219/00747 , C07C67/055 , C40B30/08 , C40B40/18 , C07C69/01 , C07C69/15 , C07C69/24
摘要： The present invention relates to a method of producing a catalyst or pre-catalyst suitable for assisting in the production of alkenyl alkanoates. The method includes contacting a modifier precursor to a support material to form a modified support material. One or more catalytic component precursors (palladium or gold) may be contacted to the modified support material. The atomic ratio of gold to palladium is preferably in the range of about 0.3 to about 0.90. The support materials with the catalytic component may then be reduced using a reducing environment. A composition for catalyzing the production of an alkenyl alkanoates including a modified support material with palladium and gold is also included within the invention. Catalysts of the present invention may be used to produce alkenyl alkanoates in general and vinyl acetate in particular and are useful to produce low EA/VA ratios while maintaining or improving CO2 selectivity.
摘要翻译： 本发明涉及一种制备适于辅助生产链烷酸链烯酯的催化剂或预催化剂的方法。 该方法包括使改性剂前体与载体材料接触以形成改性的载体材料。 一种或多种催化组分前体（钯或金）可以与改性的载体材料接触。 金与钯的原子比优选在约0.3至约0.90的范围内。 然后可以使用还原环境来减少具有催化组分的载体材料。 用于催化生产含钯和金的改性载体材料的链烷酸酯的组合物也包括在本发明内。 本发明的催化剂通常可用于制备烯基链烷酸酯，特别是乙酸乙烯酯，并且可用于产生低EA / VA比，同时保持或改善CO 2选择性。
-
-
-
搜索结果
4 条记录 (耗时 0.018 秒)
