METHOD OF HYDROGENATING UNSATURATED TRIGLYCERIDES Russian patent published in 2011 - IPC C11C3/12 

FIELD: chemistry.

SUBSTANCE: method involves hydrogenation of polyunsaturated triglycerides in the presence of a noble metal and hydrogen catalyst deposited on a substrate. The noble metal catalyst is a composite of a solid substrate, noble metal particles and a polymer. Temperature of the process lies between 30°C and 200°C and hydrogen pressure is equal to 1-200 bars. Hydrogenated edible oil has iodine number between 60 and 80, between 2.5 and 9 trans-isomers, SC₁₀ between 39 and 47 g/100 g and maximum SC₃₅ of 15 g/100 g, preferably between 2 and 15 g/100 g, where SC₁₀ and SC₃₅ denote content of solid fat at 10°C and 35°C, determined via AOCS method for establishing content of solid fat. Also, frying oil based on hydrogenation of edible oil, has iodine number of at least 80 and content of trans-isomers between 0.5 and 5 wt %. Hydrogenated oil is obtained using the method described above.

EFFECT: invention reduces isomerisation products and enables formation of only a small amount of additional saturated products.

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