SOLID CATALYST FOR DECOMPOSITION OF HIGHLY CONCENTRATED HYDROGEN PEROXIDE AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2022 - IPC B01J23/34 B01J23/04 B01J23/78 B01J32/00 B01J37/04 B01J37/08 C06D5/04 

FIELD: catalysts.

SUBSTANCE: invention relates to the field of creating solid catalysts for decomposition of highly concentrated hydrogen peroxide (HCHP), suitable for use in rocket and space technology, in particular, in turbine pump units of engines of Soyuz-type launch vehicles, systems for safe landing of space vehicles with astronauts, life support systems of interplanetary manned space vehicles, etc. The proposed solid catalyst for decomposition of HCHP constitutes a mixture of grains of: 1) a porous carrier produced by sintering a charge consisting of powdered carbonyl iron, sodium nitrate, soda ash and potassium permanganate, crushing the resulting sinter, followed by oxidation thereof with air oxygen at a temperature of 490 to 525°C for 5.5 to 6 hours, then dividing the oxidised porous carrier into two parts, subjecting the first part to heat treatment in air at a temperature above 700°C for 2 hours; 2) the second part of grains of the same porous carrier with active substances deposited thereon, wherein potassium permanganate and soda ash in the form of an aqueous solution are used as active substances, wherein deposition is conducted at a temperature of 270 to 300°C for 7 to 10 hours, followed by subjecting the porous carrier with the active substances deposited thereon to heat treatment in air at a temperature above 700°C for 2 hours.

EFFECT: development of a low-cost, highly efficient solid catalyst for decomposition of HCHP for multiple use without using precious metals with long-term stable characteristics at high specific loads, long operating life, including in pulsed HCHP supply mode, and long term of service.

1 cl, 14 dwg, 5 ex