发明授权
- 专利标题： Process for purifying impure sulphuric acid
- 专利标题（中）： 净化不纯硫酸的方法
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申请号： US369482申请日： 1995-01-06
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公开(公告)号： US5501847A公开(公告)日： 1996-03-26
- 发明人: Jean-Francois Joly , Eric Benazzi , Fre/ de/ ric Chaigne , Jean-Yves Bernhard , Jean-Charles Viltard
- 申请人： Jean-Francois Joly , Eric Benazzi , Fre/ de/ ric Chaigne , Jean-Yves Bernhard , Jean-Charles Viltard
- 申请人地址： FRX Rueil Malmaison
- 专利权人： Institut Francais Du Petrole
- 当前专利权人： Institut Francais Du Petrole
- 当前专利权人地址： FRX Rueil Malmaison
- 优先权： FRX9400145 19940106
- 主分类号： C01B17/90
- IPC分类号： C01B17/90 ; B01J21/08 ; B01J27/30 ; C01B17/04 ; C01B17/58 ; C01B17/92 ; C07B61/00 ; C07C2/62 ; C07C9/16 ; C01B17/74
摘要：
The invention concerns a process for purifying sulphuric acid, particularly after it has acted as a catalyst in aliphatic alkylation reactions.It is characterized in that the sulphuric acid is impregnated into a porous organic or inorganic support, for example silica, and is then calcined at least once to eliminate organic hydrocarbon substances which the sulphuric acid may contain.