METHOD OF PREPARING MESOPOROUS CATALYST FOR PRODUCING HIGH-INDEX SYNTHETIC DECENE BASE OILS Russian patent published in 2015 - IPC B01J23/26 B01J21/08 B01J35/10 B01J37/02 B01J37/08 B01J37/16 C07C2/08 B82B1/00 

FIELD: chemistry.

SUBSTANCE: method includes mixing tetraethyl orthosilicate and chromium nitrate nanohydrate, followed by adding the mixture to 0.28 M HCl solution with pH 5.2-5.5; mixing the solution for 2-3 hours at room temperature and adding to a solution containing Pluronic 123 surfactant in 0.28 M HCl with pH 5.2-5.5; mixing the obtained mixture at 40-45°C for 3-4 hours; holding in an autoclave with a teflon insert at 110-120°C for 10-12 hours; separating the solid product by filtering; drying at 100-120°C for 2-3 hours and annealing in an air current at 500-550°C for 4-5 hours. The obtained catalyst is characterised by a high specific surface area of 723 m²/g, pore volume of 2.154 cm³/g and average pore diameter of 117 E.

EFFECT: invention provides high catalytic activity, which enables to obtain synthetic base oil with a high viscosity index and low chilling point with high conversion of decene-1.

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