Preparation of polyol esters based on vegetable and animal fats

Palm Oil Derived Trimethylolpropane Triesters Synthetic Lubricants and Usage in Industrial Metalworking Fluid

“…This explained that the overall molecular structure especially for multiple branched molecules which have greater influence to the pour point than it s branching fatty acids. This is in agreement with the suggestion in the previous literatures 7,24 . Besides, TMPTO-A showed a lower pour point than Radialube 7561 due to it s higher poly-unsaturated content.…”

“…TMP triesters are among the PE of interest in the lubricant industry for its wide viscosity range, high flash point and fire retardant attributes. The fatty acids being considered most in the synthesis of TMP triesters are pure caprylic acid 5 , oleic acid 6 , rapeseed oil 7 , olive oil 7 , animal fats 7 , palm oil 8 , rubber seed oil 9 etc.…”

A Novel Methodology for the Synthesis of Acyloxy Castor Polyol Esters: Low Pour Point Lubricant Base Stocks

“…The viscosities of the base stocks decreased compared to native castor oil due to monoester and lower molecular weigt and branching. The different castor acylated products on further esterification with NPG, TMP and PE, the viscosities increased with increase in number of acyl groups as observed in most of the previous reports on polyol esters 11,21 .…”

“…Several such modifications have been reported on large number of edible oils such as palm and palm kernel oil 4 6 , soybean oil 7,8 , Rapeseed oil 9, 10 , Rapeseed, olive oil and animal fat 11 , sal fat 12,13 , Mustard oil 14 and non-edible oils such as jatropha 15 18 , karanja 19,20 , rubber 21 , milkweed 22 , Thumba 23 , castor 24 . These modifications resulted in a variety of base stocks with varied specifications suitable for hydraulic, metal working and other industrial applications.…”

Bio-lubricants Derived from Waste Cooking Oil with Improved Oxidation Stability and Low-temperature Properties

“…Gryglewicz and Akermana developed vegetable oil based trimethylolpropane TMP ester from vegetable oils methyl ester through transesterification 13 . Transesterification eliminates the β-hydrogen atom of the vegetable oil substrate, thus improving the oxidative and thermal sta-bility of the bio-lubricant base-stock 13,14 . Honary et al systematically investigated genetically modified high oleic soybean oil based lubricant and developed dozens of biolubricants 15 17 .…”