发明名称 |
PROCEDIMENTO DI ESTRAZIONE DI PARAFFINE DA MISCELE CONTENENTI LE STESSE ED ACIDI ALCANSOLFONICI |
摘要 |
In preparing alkanesulphonic acids by sulphoxidation of n-paraffins containing between 12 and 18 carbon atoms, using UV radiation to initiate the reaction (light-water process), a mixture is obtained which spontaneously allows a substantial part of the unconverted n-paraffins to separate from a mixture containing the alkanesulphonic acids together with water, sulphuric acid and n-paraffins. The aforesaid mixture is fed with one or more alcohols having four or less than four carbon atoms, preferably isopropanol, to form a two-phase mixture. The two-phase mixture is extracted with supercritical CO2, which extracts the n-paraffins, these being recycled to the sulphoxidation process. The paraffin-free product is suitable for preparing alkanesulphonates of the desired type by neutralisation with suitable bases. |
申请公布号 |
IT1196982(B) |
申请公布日期 |
1988.11.25 |
申请号 |
IT19860021225 |
申请日期 |
1986.07.23 |
申请人 |
ENIRICERCHE SPA;ENICHEM AUGUSTA SPA |
发明人 |
FRANCO COSIMO;CARRILLO GERARDO;FAGGIAN LUCIO |
分类号 |
C07C7/148;C01B;C07B63/00;C07C;C07C1/00;C07C7/00;C07C7/10;C07C9/00;C07C9/14;C07C9/15;C07C9/22;C07C39/04;C07C67/00;C07C301/00;C07C303/04;C07C303/14;C07C303/28;C07C303/42;C07C303/44;C07C309/02;C07C309/03;C07C309/04;C07D303/44;C08F;C10G;C10G21/06;C10G21/08;C10G73/02;C10G73/06;C10G73/38;C11D3/34 |
主分类号 |
C07C7/148 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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