发明授权
- 专利标题： Purification of the hydrochloric acid by-product of the synthesis of methanesulphonic acid
- 专利标题（中）： 纯化合成甲磺酸的盐酸副产物
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申请号： US09126102申请日： 1998-07-30
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公开(公告)号： US06190635B1公开(公告)日： 2001-02-20
- 发明人: Jean Ollivier , Rene Clair , Denise Molines , Marc Ferrigno
- 申请人： Jean Ollivier , Rene Clair , Denise Molines , Marc Ferrigno
- 优先权： FR9709779 19970731
- 主分类号： C01B707
- IPC分类号： C01B707
摘要：
In order to remove the methanesulphonyl chloride entrained by the gaseous HCl by-product, an amount of water ranging from 0.01 to 20%, relative to the mass of HCl to be treated, is injected into the HCl gas flow and the temperature is lowered to a value below or equal to 15° C.
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