Method and device of removing and recycling metals from mixing acid solution

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United States of America

PATENT NO 11976374
SERIAL NO

17017337

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Abstract

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A method and device of removing and recycling metals from a mixing acid solution, includes adsorbing a mixing acid solution with a pH value of −1 to 4 and a cobalt ion concentration of 100 to 1,000 mg/L by at least two cation resins in series setting to the cobalt ion concentration in the mixing acid solution is less than 10 mg/L, and then adjusting the pH value of the mixing acid solution after adsorption to meet a discharge standard, wherein the particle size of the at least two cation resins in series setting is 150˜1,200 μm. After the cation resins are saturated by adsorption, regenerating the cation resins by sulfuric acid to form a cobalt sulfate solution, and then electrolytically treating the cobalt sulfate solution to obtain electrolytic cobalt and sulfuric acid electrolyte. The operation process is simple without complicated equipment, and it can effectively recycle metals from mixing acid solutions. The cationic resin and sulfuric acid solution can also be reused, so the method of the present invention has environmental and economic benefits.

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Patent OwnerAddress
MEGA UNION TECHNOLOGY INCORPORATEDNO 439-3 TAOYING RD TAOYUAN DIST TAOYUAN CITY 330

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiang, Yung-Cheng Taoyuan, TW 4 0
Li, Yu-Hsuan Taoyuan, TW 23 211
Lin, Kuo-Ching Taoyuan, TW 13 38
Shiu, Shr-Han Taoyuan, TW 8 0
Tey, Wei-Rong Taoyuan, TW 1 0

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