Title:
GOLD LEACHING AGENT FOR SELECTIVELY LEACHING GOLD FROM GOLD-CONTAINING MATERIAL, AND PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/169780
Kind Code:
A1
Abstract:
A gold leaching agent for selectively leaching gold from a gold-containing material, and a preparation method therefor and application thereof. The gold leaching agent is composed of halogen-containing organic matters that are soluble in water and is made by adding the water-soluble halogen-containing organic matters into an aqueous solution and then performing stirring and dissolving. The gold leaching agent is used for selective leaching and recovery of gold from a gold-containing material. The gold leaching agent is a leaching substance having low toxicity, stable chemical properties, and capable of leaching gold quickly, mildly and with high selectivity; the gold leaching rate is higher than most of the traditional leaching agents such as cyanide leaching agent; little secondary pollution is caused after leaching; the treatment difficulty of the leaching liquid is low; the raw materials are widely-available; the preparation process is simple; the requirements for preparation devices are low; and the wide population in industry is facilitated.
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Inventors:
HUANG YING (CN)
LI QIANXIA (CN)
XIONG ZHENFENG (CN)
GE FEI (CN)
LI QIANXIA (CN)
XIONG ZHENFENG (CN)
GE FEI (CN)
Application Number:
PCT/CN2021/075749
Publication Date:
September 02, 2021
Filing Date:
February 07, 2021
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
C22B11/00; C22B3/16
Foreign References:
| CN111100998A | 2020-05-05 | |||
| CN110129580A | 2019-08-16 | |||
| CN103114202A | 2013-05-22 | |||
| CN104388674A | 2015-03-04 | |||
| CN110607450A | 2019-12-24 | |||
| US4925247A | 1990-05-15 | |||
| US20180187286A1 | 2018-07-05 | |||
| US20020112569A1 | 2002-08-22 |
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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