发明授权
- 专利标题： Lubricant production process employing sequential dewaxing and solvent extraction
- 专利标题（中）： 润滑油生产过程采用顺序脱蜡和溶剂萃取
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申请号： US307799申请日： 1989-02-08
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公开(公告)号： US4911821A公开(公告)日： 1990-03-27
- 发明人: James R. Katzer , Quang N. Le , Stephen S. Wong
- 申请人： James R. Katzer , Quang N. Le , Stephen S. Wong
- 申请人地址： NY New York
- 专利权人： Mobil Oil Corporation
- 当前专利权人： Mobil Oil Corporation
- 当前专利权人地址： NY New York
- 主分类号： C10M101/02
- IPC分类号： C10M101/02 ; C10G45/64 ; C10G65/04 ; C10G67/04 ; C10G73/12 ; C10G73/22 ; C10G73/24 ; C10G73/34 ; C10N30/02 ; C10N70/00
摘要：
Lubricants of improved characteristics are produced by carrying out a solvent extraction to remove aromatic components after solvent or catalytic dewaxing. Aromatic extraction solvents such as phenol, furfural or N-methyl pyrrolidone may be used. The process is particularly useful with wax-derived lubricants produced by the hydroisomerization of a petroleum wax which has then been dewaxed.