发明公开
EP0671213A1 Process for the recovery of alkylation catalyst
失效
Verfahren zur Wiedergewinnung von Alkylierungskatalysator。
- 专利标题： Process for the recovery of alkylation catalyst
- 专利标题（中）： Verfahren zur Wiedergewinnung von Alkylierungskatalysator。
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申请号： EP95102313.4申请日： 1995-02-20
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公开(公告)号： EP0671213A1公开(公告)日： 1995-09-13
- 发明人: Hommeltoft, Sven Ivar
- 申请人： Haldor Topsoe A/S
- 申请人地址： Nymollevej 55 DK-2800 Lyngby DK
- 专利权人： Haldor Topsoe A/S
- 当前专利权人： Haldor Topsoe A/S
- 当前专利权人地址： Nymollevej 55 DK-2800 Lyngby DK
- 优先权： DK278/94 19940310
- 主分类号： B01J31/40
- IPC分类号： B01J31/40 ; C07C2/62
摘要：
Process for the recovery of spent fluorinated sulphonic catalyst from acid soluble oil (ASO) being formed during alkylation of hydrocarbons in presence of the acid catalyst, comprising steps of
washing the ASO with water and recovering an aqueous solution of the acid catalyst,
neutralizing the acid in the aqueous solution by adding to the solution a basic compound being selected from the group of amino compounds, ammonia and ammonium salts, thereby, forming ammonium salts of the acid catalyst with a melting point at which the obtained acid catalyst salt in a subsequent concentration and drying step is in the form of a melt,
drying the melt, and finally
recovering the acid catalyst by protonisation of the dried melt with sulphuric acid and distilling off the recovered acid catalyst from the sulphuric acid.
washing the ASO with water and recovering an aqueous solution of the acid catalyst,
neutralizing the acid in the aqueous solution by adding to the solution a basic compound being selected from the group of amino compounds, ammonia and ammonium salts, thereby, forming ammonium salts of the acid catalyst with a melting point at which the obtained acid catalyst salt in a subsequent concentration and drying step is in the form of a melt,
drying the melt, and finally
recovering the acid catalyst by protonisation of the dried melt with sulphuric acid and distilling off the recovered acid catalyst from the sulphuric acid.
公开/授权文献
- EP0671213B1 Process for the recovery of alkylation catalyst 公开/授权日：1999-06-02
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