METHOD FOR RECYCLING GOLD FROM FULL-MUD CYANIDE TAILINGS

WIPO Patent Application WO/2022/062674

A1

The present invention relates to the field of hydrometallurgy. Disclosed is a method for recycling gold from full-mud cyanide tailings, comprising the following steps: (1) performing pulping and screening on cyanide tailings to obtain a coarse grained gold-loaded carbon and ore pulp; (2) performing pulp adjustment on the ore pulp, adding a chemical for stirring, and then performing floatation circulation to obtain gold-loaded carbon powder and tailing slag; (3) dehydrating the gold-loaded carbon powder, and then incinerating same together with the coarse grained gold-loaded carbon in step (1) to obtain carbon residues and fallen ash; and (4) smelting the carbon residues to obtain a gold ingot. The chemical is at least one of terpineol oil or diesel. The method for recycling gold from full-mud cyanide tailings of the present invention has short process, is low in cost, recycles gold in tailings to a great extent, and decreases the grade of the gold in the tailings.

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LI CHANGDONG (CN)
TANG HONGHUI (CN)
LIU XIQUAN (CN)
YE MINJIE (CN)
LIU BO (CN)
ZENG DAQI (CN)

PCT/CN2021/110310

March 31, 2022

August 03, 2021

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GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP VEHICLES RECYCLING CO LTD (CN)

C22B11/00; B03D1/00; B03D1/08; C22B7/00

CN112210675A	2021-01-12
CN103977881A	2014-08-13
CN109811137A	2019-05-28
CN86101940A	1987-04-15
CN101078047A	2007-11-28
CN102409176A	2012-04-11

ADVANCE CHINA IP LAW OFFICE (CN)

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