FIELD: method is used to produce active aluminum oxide as carrier of catalysts of hydraulic processing. SUBSTANCE: method to produce carrier for catalysts of hydraulic processing provides for thermal dispersion of hydrargillite under temperature of 800 - 1100 C for 0.5 - 2 s, mechanical-chemical working with speed of impact of 270 - 350 m/s till size of particles is 2 - 10 mcm, washing and plasticization with nitric acid with consumption of 0.1 - 0.2 mole per 1.0 mole of AlAl2O3 under temperature of 130 - 135 C for 10 - 12 hours, moulding, drying and calcination. EFFECT: improved quality of carrier for catalyst.
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