Preparation method for lubricating oil
Title：
Preparation method for lubricating oil
Application Number：
 200710122083
Application Date：
 2007/09/21
Announcement Date：
 2008/02/13
Pub. Date：
Publication Number：
 101121907
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C10M 101/04, C11B 3/04
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Duan Shijie, Mao Zongqiang, Wang Cheng, Liu Zhixiang, Xu Peng
Key Words：
 Preparation method, lubricating oil
Abstract：
 The invention discloses a lubricant preparing method, particularly relates to a method for preparing an environment-friendly polyester lubricating-oil basic oil. The invention takes use of chemical modification of vegetable oil to improve the rheologic behavior and oxidation stability. Firstly, the vegetable oil is mixed with alcohol for esterification reaction to achieve vegetable-oil monoester and introduce branched chain into the molecular structure. Subsequently, hydrogen peroxide is used to turn the double-bonds in the vegetable-oil basic oil into saturated epoxy-bonds; then, the epoxy-bonds are opened by fatty acid to achieve vegetable-oil monoether containing hydroxy groups. And finally, acetic anhydride is used to esterify the generated hydroxy groups and achieve polyether vegetable-oil ether. Compared with vegetable oil, the modified polyester vegetable-oil ether is largely improved in frictional behavior, rheologic behavior and oxidation stability.
Claim：
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PCT：
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