Method for preparing a palladium catalyst used in the oxidation reactions of methane from ventilation air coal mine shafts

摘要

the subject of the invention is a catalyst used in the reaction process to obtain a palladium oxidation methane variable and relatively low contents contained in air shaft of coal mining.process to obtain a catalyst according to the invention is that the burnt out at 1000 - 1200u00b0c medium with? - a2o3, shaped in the form of rings raschiga, washing with distilled water and dried at 80 - 100u00b0c and subsequently dispersible it palladium from aqueous solution of palladium nitrate in the rotary drum.which is successively 100 units of mass medium and 100 units of bulk palladium nitrate aqueous solution containing 0.25% by weight of pure palladium, leading process impregnation times after 5 minutes.after the first two stages of impregnation solution medium is separated from each drying by 60 - 90 minutes at a temperature of 80 to 150u00b0c, and after the third and final phase impregnation, medium drought to complete removal of water by 150 - 600 min. temp. 80 - 150u00b0c and kalcynuje by 60 min in temperature 500u00b0c.