Soybean, pea and slag chemical modification method for preparing litters

The present invention relates to the field of agricultural products processing and the use of pets prepared BACKGROUND supplies. In order to overcome the existing litter in the present method of preparing low water absorption or high costs, environmental hazards of large disadvantage of the method proposed by the invention is: wetting lime meal and / or slag peas, at 70-120 ℃ temperature-50-150 min, the material from the slag bulk state to a state slimy; dialdehyde was added, reacted at 15-65 ℃ 1-8 hours, evaporated to a moisture content between 35-55%, and then the plant stalks powder mixing, extrusion molding, the carbon dioxide-rich atmosphere in the sealed container until the material decrease in pH from about 7-8 to 12, and finally dried, screened to obtain high water absorption litter.