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Beneficiation reagent and of separating and recycling precious metal from cooper anode mud using method thereof

A copper anode slime, separation and recovery technology, used in solid separation, flotation and other directions, can solve the problems of high content of precious metals in tailings, immature research, and high content of impurities, so as to reduce lead pollution and smoke pollution, improve labor Conditions and high separation efficiency

Active Publication Date: 2014-03-05
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, the following disadvantages generally exist: the dispersion loss of precious metals in each process is very serious; the direct recovery rate of precious metals is low; There are many toxic elements such as lead and arsenic remain seriously; the degree of automation of the equipment is low, and the energy consumption is large
Using the flotation process to treat copper anode slime can greatly improve the processing capacity of copper anode slime, create favorable conditions for smelting and reduce flux consumption. However, this method is still rarely used in China to treat copper anode slime. Related experimental research Insufficient, especially the immature research on beneficiation agents and beneficiation methods used in anode slime, resulting in unsatisfactory beneficiation and smelting effects and high content of precious metals in tailings

Method used

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  • Beneficiation reagent and of separating and recycling precious metal from cooper anode mud using method thereof
  • Beneficiation reagent and of separating and recycling precious metal from cooper anode mud using method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] An ore dressing agent for separating and recovering precious metals from copper anode slime, comprising 3 parts by weight of a collector, 10 parts by weight of an inhibitor and 10 parts by weight of a foaming agent, wherein the collector is pinitol Xanthate and pinitol black medicine, the molar ratio of pinitol xanthate and pinitol black medicine is 2:1, the inhibitor is sodium hexametaphosphate, and the foaming agent is pinitol oil.

[0022] The preparation method of the pinitol xanthate is as follows: massaging pinitol oil: sodium hydroxide: carbon disulfide=1:1:1.2, reacting at 15° C. for 3 hours to obtain pinitol xanthate.

[0023] The preparation method of the pinitol black medicine is as follows: according to the molar ratio of pinitol oil: phosphorus pentasulfide: sodium hydroxide = 4:1:2, react at 80° C. for 1 hour to obtain the pinitol black medicine.

[0024] The method for separating and recovering precious metals from copper anode slime by using the above-me...

Embodiment 2

[0038] An ore dressing agent for separating and recovering precious metals from copper anode slime, comprising 10 parts by weight of a collector, 1 part by weight of an inhibitor and 1 part by weight of a foaming agent according to the weight ratio, wherein the collector is pinitol Xanthate and pinitol black medicine, the molar ratio of pinitol xanthate and pinitol black medicine is 100:1, the inhibitor is sodium hexametaphosphate, and the foaming agent is pinitol oil.

[0039] The preparation method of the pinitol xanthate is as follows: massaging pinitol oil: sodium hydroxide: carbon disulfide=1:1:1.2, reacting at 40° C. for 1 hour to obtain pinitol xanthate.

[0040] The preparation method of the pinitol black medicine is as follows: according to the molar ratio of pinitol oil: phosphorus pentasulfide: sodium hydroxide = 4:1:2, react at 20° C. for 3 hours to obtain the pinitol black medicine.

[0041] The method for separating and recovering precious metals from copper anod...

Embodiment 3

[0055] A beneficiation agent for separating and recovering precious metals from copper anode slime, comprising 1 part by weight of collector, 5 parts by weight of inhibitor and 5 parts by weight of foaming agent according to the weight ratio, wherein the collector is pinitol Xanthate and pinitol black medicine, the molar ratio of pinitol xanthate and pinitol black medicine is 1:25, the inhibitor is sodium hexametaphosphate, and the foaming agent is pinitol oil.

[0056] The preparation method of the pinitol xanthate is as follows: massaging pinitol xanthate oil: sodium hydroxide: carbon disulfide=1:1:1.2, reacting at 30°C for 1.5h to obtain pinitol xanthate.

[0057] The preparation method of the pinitol black drug is as follows: according to the molar ratio of pinitol oil: phosphorus pentasulfide: sodium hydroxide = 4:1:2, react at 60° C. for 2 hours to obtain the pinitol black drug.

[0058] The method for separating and recovering precious metals from copper anode slime by ...

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Abstract

The invention belongs to the field of precious metal metallurgy, in particular to a benenficiation reagent and a using method of separating and recycling precious metal from copper anode mud. According to weight proportion, the beneficiation reagent is composed of 1-10 parts by weight of collector pinitol xanthate and pinitol aerofloat, 1-10 parts by weight of inhibitor sodium, namely, hexametaphosphate and 1-10 parts by weight of foaming agent, namely, pinitol oil. The method of separating and recycling precious metal is that first of all, acid leaching pretreatment is performed, then acid leaching residue is prepared into slurry, the slurry is added with the beneficiation reagent and rough selection is performed, then two accurate selections are performed, and precious metal ores are acquired. The benericiation reagent and the using method of separating and recycling precious metal from cooper anode mud is strong in selectivity of the beneficiation reagent, high in precious metal separating efficiency, and high in recycling rate of gold and silver, and capable of reducing cost and pollution.

Description

technical field [0001] The invention belongs to the field of precious metal metallurgy, and in particular relates to a beneficiation agent for separating and recovering precious metals from copper anode slime and a use method thereof. Background technique [0002] Copper anode slime is a by-product of copper electrolytic refining and is an important raw material for the recovery of precious metals. In the process of copper electrolysis, the potential of gold, silver and platinum group metals is relatively positive, and it does not electrochemically dissolve on the copper anode and is produced as extremely fine particles. Fall off from the anode to the bottom of the electrolytic cell; elements such as sulfur, selenium and tellurium exist in the form of stable compounds on the anode, and sink to the bottom of the electrolytic cell without electrochemical reaction; insoluble nickel sinks to the bottom of the electrolytic cell in a compound state. There are three representative ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/04B03D101/06
Inventor 杨洪英陈国宝郭军佟琳琳
Owner NORTHEASTERN UNIV LIAONING
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