A porous composite material and its preparation method NaA zeolite molecular sieve-containing

The present invention relates to a method for preparing a porous composite material and containing zeolite molecular sieve NaA, characterized in that the spent catalyst A kaolin clay with water and a dispersing agent, expanding agent, aids, binders or several Stir the slurry is made by extruding, ball, tabletting molding or spray drying, the molding composition 700 ~ 1000 ℃ calcined for 0.5 to 5 hours to obtain a calcined material; the calcined material was added water, adjusted to final pH acid 3.0 to 5.0, followed by reaction at 30 ~ 90 ℃ 10 ~ 60min, the mother liquor was removed by filtration, washed with water by filtration to obtain modified material; modified material lye and / or sodium silicate, the water into the crystallization reactor, at 70 ~ 110 ℃ hydrothermal crystallization for 2 to 12 hours, after removal of the mother liquor by filtration, washed with deionized water filter, filtered, and dried to give the desired product after the filter. This method of preparing low cost, high efficiency can be realized solid waste recycling. High content of the zeolite molecular sieve product, a large adsorption capacity.