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公开(公告)号：US20050137409A1
公开(公告)日：2005-06-23
申请号：US11008029
申请日：2004-12-09
申请人： Sunil Ashtekar , Pramod Kumbhar , Jan-Pleun Lens , Rathinam Mahalingam , Nadkarni Pradeep , Jegadeesh Thampi
发明人： Sunil Ashtekar , Pramod Kumbhar , Jan-Pleun Lens , Rathinam Mahalingam , Nadkarni Pradeep , Jegadeesh Thampi
摘要： A process for the preparation of benzoquinones and hydroquinones includes oxidizing an aromatic hydroxy compound with oxygen or an oxygen containing gas, a copper containing catalyst, and optionally a promoter to form the benzoquinone. A reduction reaction is employed to form the hydroquinone.
摘要翻译： 制备苯醌和氢醌的方法包括用氧或含氧气体氧化芳族羟基化合物，含铜催化剂和任选的助催化剂以形成苯醌。 采用还原反应形成氢醌。
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公开(公告)号：US20050222372A1
公开(公告)日：2005-10-06
申请号：US10815879
申请日：2004-03-31
IPC分类号： B01J21/10 , B01J23/72 , B01J27/232 , B01J35/10 , B01J37/00 , C07C37/14 , C07C37/16 , C07C39/08 , C08G65/38
CPC分类号： C07C37/14 , B01J21/10 , B01J23/72 , B01J27/232 , B01J35/1061 , B01J37/0018 , C07C37/16 , C07C39/08
摘要： A continuous process comprising: contacting a mixture comprising dihydroxy aromatic compound, water and an alkylating agent with a catalyst system in the presence of a flowing carrier gas, to form a mono alkylated dihydroxy aromatic compound, wherein the catalyst system is obtained by the calcination of a catalyst precursor system comprising a metal oxide precursor, a transition metal element and a pore former.
摘要翻译： 一种连续方法，包括：在流动的载气存在下使包含二羟基芳族化合物，水和烷基化剂的混合物与催化剂体系接触，形成单烷基化二羟基芳族化合物，其中催化剂体系是通过煅烧 包含金属氧化物前体，过渡金属元素和成孔剂的催化剂前体体系。
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公开(公告)号：US20050137380A1
公开(公告)日：2005-06-23
申请号：US10757921
申请日：2004-01-14
IPC分类号： B01J27/122 , C07C37/07 , C07C39/08 , C07C46/08 , C08G64/04 , C08G64/00 , C07C37/06 , C07C50/04
摘要： A process for the preparation of benzoquinones and hydroquinones includes oxidizing an aromatic hydroxy compound with oxygen or an oxygen containing gas, a copper containing catalyst, and a promoter to form the benzoquonone. A reduction reaction is employed to form the hydroquinone.
摘要翻译： 制备苯醌和氢醌的方法包括用氧或含氧气体氧化芳族羟基化合物，含铜催化剂和助催化剂以形成苯醌。 采用还原反应形成氢醌。
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公开(公告)号：US20060025634A1
公开(公告)日：2006-02-02
申请号：US10903149
申请日：2004-07-30
IPC分类号： C07C37/60
摘要： A process for the preparation of hydroquinone compounds comprising, reacting an aromatic hydroxy compound with an oxidizing agent in a biphasic solvent system. The reaction is carried out in the presence of a transition metal hydroxy phosphate catalyst to produce the corresponding hydroquinone compound.
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