发明授权
- 专利标题： Process for the preparation of calcium phenate detergents from cashew nut shell liquid
- 专利标题（中）： 从腰果壳液制备酚钙清净剂的方法
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申请号： US55213申请日： 1998-04-06
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公开(公告)号： US5910468A公开(公告)日： 1999-06-08
- 发明人: Khem Chand Dohhen , Harish Chander Bhatia , Krishan Kumar Swami , Rakesh Sarin , Deepak Kumar Tuli , Madan Mohan Rai , Akhilesh Kumar Bhatnagar
- 申请人： Khem Chand Dohhen , Harish Chander Bhatia , Krishan Kumar Swami , Rakesh Sarin , Deepak Kumar Tuli , Madan Mohan Rai , Akhilesh Kumar Bhatnagar
- 申请人地址： INX Bombay
- 专利权人： Indian Oil Corporation Ltd.
- 当前专利权人： Indian Oil Corporation Ltd.
- 当前专利权人地址： INX Bombay
- 主分类号： C10M159/22
- IPC分类号： C10M159/22
摘要：
A process for the preparation of sulphurized calcium phenate from cashew nut shell liquid (CNSL). Distilled or hydrogenated distilled CNSL is reacted with calcium salt and sulphur in the presence of promoters to obtain a reaction mixture. The reaction mixture is subjected to the step of carbonation to obtain basic sulfurized calcium phenate, which may be subjected to a further step of basefication to obtain overbased sulphurized calcium phenate. Such a calcium phenate is added to lubricating oil or grease as an additive.
公开/授权文献
- USD386176S Telephone base 公开/授权日：1997-11-11
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