发明公开
- 专利标题： Generation of sulphur trioxide from oleum
- 专利标题（中）： 一种用于从发烟硫酸产生三氧化硫的过程。
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申请号： EP86300296.0申请日： 1986-01-17
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公开(公告)号： EP0189285A2公开(公告)日： 1986-07-30
- 发明人: Cameron, Gordon Murray , Whitters, Robert Francis
- 申请人： C-I-L Inc.
- 申请人地址： 90 Sheppard Avenue East North York Ontario M2N 6H2 CA
- 专利权人： C-I-L Inc.
- 当前专利权人： C-I-L Inc.
- 当前专利权人地址： 90 Sheppard Avenue East North York Ontario M2N 6H2 CA
- 代理机构： Gore, Peter Manson
- 优先权： CA472524 19850121
- 主分类号： C01B17/74
- IPC分类号： C01B17/74
摘要：
A continuous process for the generation of sulphur trioxide from oleum suitable for use in the sulphonation of organic compounds which comprises continuously introducing oleum feed to a sulphur trioxide desorption tower; continuously introducing a dry feed airstream comprising recycled dry feed air stream to the desorption tower, whereby a gaseous mixture of sulphur trioxide in air is produced; collecting spent oleum from the desorption tower; introducing the gaseous mixture to a sulphpnation reactor; and recycling spent gaseous mixture from the reactor to the desorption tower as recycled feed air. The process offers reduced environmental pollution and operating costs.
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