发明名称 |
PROCESS FOR EXTRACTING PARAFFINS FROM THEIR MIXTURES WITH PARRAFFINSULPHONIC ACIDS |
摘要 |
Mixtures of C12-C18 n-paraffins with paraffinsulphonic acids having the same number of carbon atoms, water and sulphuric acid, and obtained by sulphoxidation of said paraffins with SO2 and O2 in the presence of water and UV radiation are stripped of their excess SO2 and decanted to separate most of the paraffins. and obtain a residual mixture. The residual mixture is fed with sulphuric acid until a two-phase system forms or at least until the mixture becomes turbid, and the turbid mixture or that floating on the heavy water-sulphuric acid phase is extraced with supercritical CO2, which removes with it the paraffins, which can be reused in the sulphoxidation process. |
申请公布号 |
EP0261700(B1) |
申请公布日期 |
1990.05.30 |
申请号 |
EP19870201344 |
申请日期 |
1987.07.14 |
申请人 |
ENIRICERCHE S.P.A.;ENICHEM AUGUSTA S.P.A. |
发明人 |
FAGGIAN, LUCIO;CASTELLANO, MAURIZIO;PLATONE, EDOARDO;FRANCO, COSIMO |
分类号 |
C07C7/148;B01D11/04;C07B63/00;C07C1/00;C07C7/10;C07C9/15;C07C9/22;C07C67/00;C07C301/00;C07C303/14;C07C303/42;C07C303/44;C07C309/04;C10G21/06;C10G73/02;C10G73/06;C10G73/38;C11D3/34 |
主分类号 |
C07C7/148 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|