METHOD FOR CALCIUM LUBRICANT PRODUCTION Russian patent published in 2017 - IPC C10M177/00 C10M101/00 C10M111/00 C10M169/00 C10N40/00 

FIELD: chemistry.

SUBSTANCE: mineral oils of various grades and raw glycerin - a waste of biodiesel production containing glycerol, methyl esters of fatty acids and their potassium salts of fatty acids are used as a raw material for production of lubricant. The lubricant is obtained by raw glycerin and mineral oil mixture treatment by calcium chloride in an anhydrous medium at 60-100°C for 4-6 hours, and subsequent separation of the resulting viscous-plastic mass, which is a plastic calcium lubricant, from the liquid glycerin layer.

EFFECT: process simplification using cheap raw materials, utilisation of the main by-product of biodiesel production - raw glycerin.

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