INDUSTRIAL PRODUCTION OF ESTER-BASED SYNTHETIC OILS (PROMYSHLENNOE POLUCHENIE SINTETICHESKIKH MASEL NA OSNOVE SLOZHNYKH EFIROV),
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Pagination or Media Count:
An industrial-scale production process for synthetic lubricating oils based on esters is reviewed. The plant for the production of synthetic oils based on esters of pentaerythritol and diethylene glycol and monocarboxylic synthetic fatty acids went on stream in 1961 at the Ufa refinery. The original design provided for the production of an oil whose composition is pentaerythritol ester, 65 diethylene glycol ester, 34.5 and p-hydroxydiphenylamine, 0.5. The monocarboxylic acids used are C5--C6 and C7--C9 fractions produced at the same plant by oxidation of waxes from sulfur-containing crudes, and the alcohols are, of course, pentaerythritol and diethylene glycol. The esterification proceeds in the presence of zinc oxide catalyst at atmospheric pressure and 140--225C. The original article gives the flow sheet and detailed conditions for the process.
- Industrial Chemistry and Chemical Processing
- Lubricants and Hydraulic Fluids