发明名称 |
Process for preparing detergents. |
摘要 |
<p>A magnesium phenate is prepared by a process which comprises reacting (1) magnesium oxide, magnesium hydroxide, magnesium carbonate, magnesium bicarbonate or a magnesium carboxylate with (2) a phenol, a methylene bis-phenol or a sulphurised phenol in the presence of (3) a solvent comprising an organic compound containing one or more alcoholic hydroxyl groups e.g. an alkoxy alcohol and (4) a promoter selected from a ketone, diketone such as alpha or beta diketone, aldehyde or carboxylic acid and (5) optionally a diluent oil. This magnesium phenate may be used as a detergent for a lubricating oil.</p> |
申请公布号 |
EP0323086(A2) |
申请公布日期 |
1989.07.05 |
申请号 |
EP19880311964 |
申请日期 |
1988.12.16 |
申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
MARSH, JOHN FREDERICK;CLEVERLEY, JOHN ARTHUR;SKINNER, PHILIP;MIASIK, GAYNOR MARY |
分类号 |
C10M159/12;C07C37/64;C07C37/66;C07C39/235;C07C319/20;C07C323/20;C07F3/02;C10M129/10;C10M135/30;C10M159/22;C10N10/04;C10N30/04;C10N70/00 |
主分类号 |
C10M159/12 |
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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