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1. 发明授权

US06521200B1 Catalyst and process for oxidation of sulphur dioxide 失效
标题翻译：用于氧化二氧化硫的催化剂和方法
公开(公告)号：US06521200B1
公开(公告)日：2003-02-18
申请号：US09674907
申请日：2000-11-07
申请人： Peter Lewis Silveston , Robert Ross Hudgins , Radu Valentin Vladea
发明人： Peter Lewis Silveston , Robert Ross Hudgins , Radu Valentin Vladea
IPC分类号： C01B1769
CPC分类号： B01J21/18 , C01B17/775 , Y02P20/544 , Y10S502/517
摘要： A process for the recovery of sulphur trioxide, solutions of sulphuric acid, or organic derivatives thereof, using organic compounds and/or supercritical fluids, and catalyst. The process comprises the steps of passing a mixture of SO2 and an oxygen-containing gas over an activated carbon catalyst at a temperature of at least 15° C. and preferably at a pressure of 1-200 atmospheres, and stripping the activated carbon with either (i) a liquid organic compound selected from the group consisting of ketones, ethers, decalin, tetrahydrofurans, sulpholanes, glymes and formamides and which is non-reactive with sulphur trioxide or sulphuric acid, or (ii) a liquid organic compound capable of forming organic sulphates or sulphonates by reaction with sulphur trioxide or sulphuric acid. The process may be used to obtain sulphuric acid, or organic sulphates or sulphonates.
摘要翻译：使用有机化合物和/或超临界流体和催化剂回收三氧化硫，硫酸或其有机衍生物的方法。该方法包括以下步骤：在至少15℃，优选1-200大气压的压力下，将SO 2和含氧气体的混合物在活性炭催化剂上通过，并用（i）选自酮，醚，十氢化萘，四氢呋喃，磺胺，甘氨酸和甲酰胺的液体有机化合物，其与三氧化硫或硫酸不反应，或（ii）能够形成的液体有机化合物有机硫酸盐或磺酸盐与三氧化硫或硫酸反应。该方法可用于获得硫酸或有机硫酸盐或磺酸盐。

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