Preparation of Trihydroxymethylpropyl Trioleate with High Purity Oleic Acid and Study on Its Antioxidant Propriety as a Lubricant Base Oil
Author(s): KONG Ling-jie, ZHANG Dong-heng, LI Peng, WEI Guan-wei, ZHANG Xue-tao, LIAN Yu-shuang
Pages: 82-84,65
Year: 2015 Issue: 8
Journal: Hydraulics Pneumatics & Seals
Keyword: high purity oleic acid; trihydroxymethylpropyl trioleate; lubricant oil; study;
Abstract: High purity oleic acid was prepared via Diels-Alder reaction with technical grade 80 oleic acid using maleic anhydride, methyl acrylate and acrylic acid as dienophile respectively. The contents of oleic acid was increased up to nearly 90%. With the high purity oleic ac-id and technical grade 80 oleic acid respectively, two different trihydroxymethylpropyl trioleates(TMPTOs) were prepared by esterification, and were purified by molecular distillation. PDSC and rotary oxygen bomb were employed to evaluate the oxidation stabilities of two diffi-dent TMPTOs as lubricant base oils with the same additives package. The results showed that the antioxidant performance of TMPTO syn-thesisd with high purity oleic acid is,significantly improved compared to TMPTO synthesisd with 80 oleic acid. PDSC oxidation induction period raise nearly 1 times, and rotary oxygenbomb oxidation time increase from 121min to 198min.
Pages: 82-84,65
Year: 2015 Issue: 8
Journal: Hydraulics Pneumatics & Seals
Keyword: high purity oleic acid; trihydroxymethylpropyl trioleate; lubricant oil; study;
Abstract: High purity oleic acid was prepared via Diels-Alder reaction with technical grade 80 oleic acid using maleic anhydride, methyl acrylate and acrylic acid as dienophile respectively. The contents of oleic acid was increased up to nearly 90%. With the high purity oleic ac-id and technical grade 80 oleic acid respectively, two different trihydroxymethylpropyl trioleates(TMPTOs) were prepared by esterification, and were purified by molecular distillation. PDSC and rotary oxygen bomb were employed to evaluate the oxidation stabilities of two diffi-dent TMPTOs as lubricant base oils with the same additives package. The results showed that the antioxidant performance of TMPTO syn-thesisd with high purity oleic acid is,significantly improved compared to TMPTO synthesisd with 80 oleic acid. PDSC oxidation induction period raise nearly 1 times, and rotary oxygenbomb oxidation time increase from 121min to 198min.
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