公开(公告)号：US4087622A

公开(公告)日：1978-05-02

申请号：US589619

申请日：1975-06-23

申请人： Michihiro Nakamura ,  Yuzuru Fujiwara ,  Teruo Yasui

发明人： Michihiro Nakamura ,  Yuzuru Fujiwara ,  Teruo Yasui

IPC分类号： B01J23/52 ,  B01J23/58 ,  B01J31/04 ,  B01J35/10 ,  C07C67/055 ,  C07C69/15 ,  C07C67/05

CPC分类号： B01J23/58 ,  B01J23/52 ,  C07C67/055 ,  B01J35/008 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1042 ,  B01J35/1047 ,  B01J35/108

摘要： Vinyl acetate is produced through reaction of ethylene, oxygen and acetic acid in vapor phase employing a catalyst which comprises 0.3 to 3.0 weight % of palladium metal, 0.0157 to 1.8 weight % of gold metal and 1 to 30 weight % of an alkali metal acetate, all based on the weight of the carrier or catalyst support therefor. These components are supported on said carrier or support under such conditions that (1) at least 90% by weight of each of the supported palladium and gold metals is distributed proximate the external surfaces of the carrier particles, extending to depths no greater than about 30% of the radius of each particle as measured from the external surface of each particle to the center of said particle, and (2) the proportion of gold to palladium ranges from about 5 to 60% by weight, based upon the total weight of the gold and palladium.

摘要翻译： 乙酸乙烯酯是通过乙烯，氧气和乙酸的气相反应制备的，该催化剂包含0.3〜3.0重量％的金属钯，0.0157〜1.8重量％的金属金属和1〜30重量％的碱金属乙酸盐， 所有这些都是基于载体或催化剂载体的重量。 这些组分在所述载体或载体上被支撑在以下条件下：（1）至少90重量％的负载的钯金属和金属金属分布在载体颗粒的外表面附近，延伸到不大于约30的深度 从每个颗粒的外表面到所述颗粒的中心测量的每个颗粒的半径的百分比，以及（2）金对钯的比例为约5-60重量％，基于 金和钯。

公开(公告)号：US4052442A

公开(公告)日：1977-10-04

申请号：US608756

申请日：1967-01-12

申请人： Masuhiko Tamura ,  Teruo Yasui

发明人： Masuhiko Tamura ,  Teruo Yasui

IPC分类号： C07C69/16 ,  C07C69/28 ,  C07C67/05

CPC分类号： C07C67/055

摘要： A process for preparing glycol esters such as ethylene glycol diacetate which comprises contacting a monoolefin such as ethylene with an organic monocarboxylic acid such as acetic acid containing a palladous salt and either a nitrate or a nitrite.