发明名称 |
Alkylation process |
摘要 |
A process for the production of an alkyl salicylic acid in which the alkyl substituent has at least 6 carbon atoms is disclosed, comprising reacting salicylic acid with an olefin having at least 6 carbon atoms at elevated temperature in the presence of sulphuric acid as a catalyst. Lubricating oil additives comprising a metal salt of such alkylated salicylic acids and a process for making them are also disclosed.
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申请公布号 |
US5734078(A) |
申请公布日期 |
1998.03.31 |
申请号 |
US19960740675 |
申请日期 |
1996.10.31 |
申请人 |
BP CHEMICALS (ADDITIVES) LIMITED |
发明人 |
FEILDEN, ANDREW D.;MORETON, DAVID J.;THOMAS, CHARLES B. |
分类号 |
B01J27/02;C07B61/00;C07C51/353;C07C65/05;C10M129/94;C10M159/22;(IPC1-7):C07C65/10 |
主分类号 |
B01J27/02 |
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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