Method for producing bentonite cat litter

Abstract

The invention discloses a method for producing bentonite cat litter by calcium-based bentonite. The method comprises the following steps of: grinding, acidification, sodium-modification, forming, drying and the like. In method, the calcium-based bentonite crude ores are used as a starting point, the bentonite slices are acidified and corroded by an acidifier so as to greatly increase a specific surface area of the bentonite, a sodium-modification agent is used for sodium-modification of the acidified calcium-based bentonite so as to improve a water absorption rate and bonding property of the bentonite, other additives such as wood flour and diatomite are added so as to adjust indexes, such as density and whiteness, of the cat litter, and finally the bentonite undergoes granulation, drying, screening and the like to form the bentonite cat litter having the advantages of quick water absorption, large amount of water absorption, high whiteness and high strength. The method has the advantages of good quality of the bentonite cat litter prepared by the method, simple process and low cost.

Description

technical field The invention relates to a bentonite cat litter production technology, in particular to a method for producing bentonite cat litter from natural calcium-based bentonite. Background technique Cat litter was invented by American H.Edward Lowe in 1947. It is an excrement place provided by people to satisfy the habit of cats covering their excrement with sand. Although theoretically all substances with water absorption can be used to make cat litter, such as silica gel, wood powder, rice husk, etc.; but because of its low price, bentonite has excellent water absorption, coagulation, deodorization and properties It is more suitable for the nature of cats and other advantages, and has always been the most important raw material for making cat litter. Bentonite is a clay mainly composed of montmorillonite minerals, and each bentonite particle is composed of thousands of tiny montmorillonite crystal nanosheets. The montmorillonite crystal is composed of two layers...

AI Technical Summary

Problems solved by technology

However, this method still has shortcomings such as long production cycle (attapulgite clay and magnesium oxide need to be in contact with each other and infiltrated for 24-48 hours, and the granulated cat litter particles need to be aired until the moisture content is less than or equal to 12%), and the cost is relatively high.

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