METHOD OF PRODUCING CATALYST FOR ORTHO-PARA CONVERSION OF PROTIUM Russian patent published in 2012 - IPC B01J37/34 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to heterogeneous catalysis, particularly a method of producing a catalyst for ortho-para conversion of protium. Disclosed is a method of producing a catalyst for ortho-para conversion of protium. The method involves obtaining metal nanoparticles by reducing metal ions under the effect of ⁶⁰Co -gamma radiation in a reverse micellar solution consisting of a metal salt solution, a surfactant which is sodium bis(2-ethylhexyl)sulphosuccinate, and a nonpolar solvent - isooctane, followed by deposition onto a Al₂O₃ support. The metal salt used is RhCl₃ or RuOHCI₃ and a reverse micellar solution of rhodium or ruthenium is prepared with molar ratio of the aqueous metal salt solution to the surfactant ranging from 1:1 to 10:1, and a water-alcohol solution in amount of 5-50 wt % and an ammonia solution in amount of 10-30 wt % are then added, followed by ultrasonic treatment, deaeration and exposure to ⁶⁰Co -gamma radiation with a dose of 1-40 kGy.

EFFECT: invention enables to obtain a catalyst for operation in the 77-110 K temperature range.

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