发明名称 |
LIQUID-LIQUID EXTRACTION PROCESS FOR THE PURIFICATION OF ESTOLIDES FOR USE AS LUBRICANTS |
摘要 |
A process is described for the purification of estolides for subsequent use as lubricants. This purification process comprises the removal of free fatty acids present in the estolide by liquid-liquid extraction using an alcohol, preferably ethanol or methanol, as solvent, where the total acid number of the estolide after purification is less than 1 mg KOH/g of sample, which endows it with characteristics of oxidation stability suitable for its use as a lubricant. |
申请公布号 |
EP2291500(A1) |
申请公布日期 |
2011.03.09 |
申请号 |
EP20090772778 |
申请日期 |
2009.06.26 |
申请人 |
PETROLEO BRASILEIRO S.A. PETROBRAS |
发明人 |
ROSAS, Danielle de Oliveira;FERRERA, Bauer, Costa;LEITE, Denise, Diniz |
分类号 |
C11C1/08;C10M101/04;C10M105/42;C11C1/10 |
主分类号 |
C11C1/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|