Acetate → Aluminum Acetate

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An aqueous basic aluminum chloride solution of concentration of 5.0% by weight on the basis of Al2O3 was produced by diluting commercialized aqueous basic aluminum chloride solution (23.5% by weight on the basis of Al2O3, 8.15% by weight of chloride ion, 83.3% of basicity, and pH 4.0) with pure water. The aqueous solution was passed through an acetate-type anion exchange resin column at space velocity 5 to obtain an aqueous basic aluminum acetate solution. The obtained aqueous solution was mixed with aluminum borate in proper amount for adjusting the boron atom at 1200 ppm to the aluminum atom in the aqueous solution. The obtained solution was dried at 140° C. and atmospheric pressure to adjust the water content to be 3% to obtain basic aluminum acetate solid. The boron atom concentration was 1200 ppm to the aluminum atom in the obtained basic aluminum acetate.

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