METHOD OF PREPARING SORBENTS FOR ADSORPTION OF TOXIC IMPURITIES IN GAS Russian patent published in 2003 - IPC

FIELD: gas treatment sorbents. SUBSTANCE: fine-grained Dinochrom-P is mixed with aqueous solution of strontium chloride and resulting mixture is heated to 80-90 C and evaporated to give air-dry state of intermediate product, in particular fine-grained Dinochrom-P with strontium chloride deposited on its surface. Intermediate product heated to 80-90 C is treated with 10-20% sulfuric acid solution to convert strontium salt into sulfate and washed with distilled water preheated to 50-80 C to remove chloride ions and dried for 6-12 h at 120-200 C. Invention can be used in petroleum processing and chemical industries. EFFECT: enabled adsorption and desorption without decomposition of hard-volatile toxic substances such as antiknock agents of the type of cyclopentadienyl manganese tricarbonyl.