发明名称 |
Reducing copper corrosiveness of organic polysulfides |
摘要 |
The invention provides a process of reducing the copper corrosiveness of dihydrocarbyl polysulfides by treating them with an alkali metal-containing or alkaline earth metal-containing substance capable of dissolving elemental sulfur (e.g., sodium hydroxide, sodium sulfide, etc.). The process is conducted in a liquid reaction medium composed of a mixture of water and at least one water-soluble alcohol. Experiments have shown that it is possible by use of this process to reduce the copper corrosiveness to a level below that exhibited by a product formed by treating the same initial dihydrocarbyl polysulfide in the same way but in a liquid medium composed solely of water.
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申请公布号 |
US5174922(A) |
申请公布日期 |
1992.12.29 |
申请号 |
US19890435592 |
申请日期 |
1989.11.13 |
申请人 |
ETHYL PETROLEUM ADDITIVES, INC. |
发明人 |
PEROZZI, EDMUND F.;PAPAY, ANDREW G. |
分类号 |
C07C319/18;C07C319/22;C07C319/24;C07C319/28;C07C321/14 |
主分类号 |
C07C319/18 |
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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