Patent ID: 6958362

Claim:
A method for manufacturing colloid aluminum silica gel, comprising the steps of: dissolving a mixing solution of aluminum hydroxide in sulfuric acid, wherein the mixture includes aluminum oxide, silicic acid, potassium, iron oxide, sulfuric acid and water; adding potassium sulfate solution into the solution from (a), and stirring the mixture at a low temperature to produce compositions containing soluble aluminum double salt; purifying the compositions of the step (b) to obtain aluminum potassium sulfate with high purity and density; adding aluminum silicate and water to the aluminum potassium sulfate of the step (c) to produce alkali metal polysilicate-sulfate water salt chelate; polymerizing and precipitating the alkali metal polysilicate-sulfate water salt chelate at a low temperature to produce pectograph of aluminum silicate sieve; producing chelate by adding magnesia, iron oxide, calcium hydroxide, sodium oxide, potassium oxide, and distilled water in sequence; purifying and drying the chelate of the step (f) to produce dried microsphere; melting the dried microsphere of the step (g) at a high temperature, cooling, hardening, and mixing with diluted sulfuric acid; carrying out sequential treatments on the resultant of the step (h), that is, polymerizing, cleansing, heating, dehydrating, or drying, and performing vapor treatment, to obtain powder aluminum silicate molecular sieve with a high absorption of which particle size is under 1μ; and polymerizing the aluminum silicate molecular sieves with each other until they are matured to be a highly dense heel.