Patent ID: 8562866

Claim:
A preparation method of zinc manganese silicate, comprising following steps: step 1 , mixing distilled water and anhydrous ethanol to prepare a mixture, adjusting the mixture to be alkaline, and adding tetraethyl orthosilicate to obtain a silicon dioxide sol; step 2 , weighting a zinc salt and a manganese salt, wherein the ratio of the sum of molar amount of zinc and manganese and the molar amount of tetraethyl orthosilicate from step 1 is 2:1, and preparing a mixture solution containing the zinc salt and the manganese salt by dissolving the zinc salt and the manganese salt into distilled water; step 3 , adjusting the silicon dioxide sol from step 1 to be neutral or acidic by nitric acid; step 4 , adding the mixture solution from step 2 into the silicon dioxide sol from step 3 slowly to react and form a gelatin; and step 5 , drying the gelatin from step 4 , thermal insulating and reacting the dried product at a temperature of 800° C. to 1200° C., taking out the dried product and grinding, thermal insulating and reducing the grinded product in a reductive atmosphere to obtain zinc manganese silicate.