Comprehensive utilization method for complex multi-metal material containing copper, zinc and the like

A multi-metal and copper material technology, which is applied in the direction of zinc sulfide, process efficiency improvement, zinc oxide/zinc hydroxide, etc., can solve the problems that zinc oxide does not use complicated multi-metal material treatment, long leaching process, high production cost, etc.

Inactive Publication Date: 2017-01-04
李果
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This traditional ammonia method to prepare zinc oxide has not been applied to the treatment of complex multi-metal materials containing copper, zinc and copper and zinc. The main reasons are:
[0009] 1. The grade of copper oxide and zinc ore is low, and the direct production has the problems of long leaching process, low concentration of leachate and high production cost
[0010] 2. Sulfide ore is not suitable for ammonia leaching. After flotation, pyrometallurgy is generally used. The research direction is also generally focused on the method of separating a single element during flotation. During flotation, it is collected together to separate various elements during smelting. There is less research on the method, and the traditional fire method is also difficult to achieve
[0011] 3. The impurity composition of the raw materials is complex, the copper and zinc products produced have a low qualification rate, and the product price is low and the economic benefits are poor
[0012] 4. When leaching by conventional means, the leaching rate of copper and zinc is low, and the recovery rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] 1 # Raw materials: a lead-zinc mine in Yunnan, the main components of which are captured by copper, lead and zinc and then oxidized and roasted in terms of mass percentage (%) are:

[0074] Zn22.7% Pb9.8% Cd0.007% Cu5.8% Fe5.4%

[0075] The method for preparing copper, zinc oxide and separating lead and iron:

[0076] (1) Leaching: put 1 # 1.5L ammonia water-ammonium bicarbonate solution is used as the leaching agent for the raw material to carry out stirring and leaching for several times, and the liquid-solid mass ratio is controlled at 4: 1; wherein, the molar concentration of ammonia water in the leaching agent is 3.5mol / L, and the molar concentration of ammonium bicarbonate is 1.2mol / L, add 0.5kg ammonium persulfate and hydrogen peroxide, and 0.001kg sodium dodecylbenzenesulfonate to each cubic meter of leaching agent; when leaching, use ball milling, and ensure that the leaching time in the ball mill is 60 minutes, the ball mill The exported materials all pass ...

Embodiment 2

[0082] 2 # Raw materials: after oxidation and roasting of a commercially available copper concentrate, its main components are as follows in terms of mass percentage (%):

[0083] Zn1.7% Pb4.8% Ag0.007% Cu35.8% Ni3.4% Fe9.7%

[0084] Method for preparing copper, lithopone and separating lead and iron:

[0085] (1) Leaching: put 1 # The raw material is leached with 1.5L ammoniacal liquor-ammonium sulfate solution as a leaching agent with stirring and leaching, controlling the liquid-solid mass ratio of 5: 1; wherein, the molar concentration of ammoniacal liquor in the leaching agent is 4.5mol / L, and the molar concentration of ammonium sulfate is 1.4mol / L, add 2kg of ammonium persulfate and 0.01kg of sodium dodecylbenzenesulfonate per cubic meter of leaching agent; when leaching, use ball milling, and ensure that the leaching time in the ball mill is 60 minutes, and all materials at the outlet of the ball mill Pass through a 40-mesh sieve; each leaching time is 2 hours, and t...

Embodiment 3

[0091] 3 # Raw material: arsenic filter cake smelted by a copper smelter in Xinjiang, the mass percentage (%) of its composition is:

[0092] Zn13.2% Cu3.2% Pb2.8% As15.2% S 32.1&

[0093] The method for preparing copper, zinc sulfide and separating lead and iron:

[0094] (1) Leaching: put 1 #The raw material was stirred and leached with 1.5L ammonia water-ammonium chloride solution as the leaching agent for several times, and the liquid-solid mass ratio was controlled at 4:1; wherein, the molar concentration of ammonia water in the leaching agent was 3.5mol / L, and the molar concentration of ammonium bicarbonate 1.9mol / L, add 2kg of bleaching powder and 0.05kg of sodium dodecylbenzenesulfonate per cubic meter of leaching agent; when leaching, use ball milling, and ensure that the leaching time in the ball mill is 60 minutes, and all the materials at the outlet of the ball mill pass through 100-mesh sieve; each leaching time is 2 hours, and the temperature is 20°C; the soot...

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Abstract

The invention relates to a comprehensive utilization method for a complex multi-metal material containing copper, zinc and the like. The complex multi-metal material containing copper, zinc and the like is treated to be non-vulcanized, an ammonia process is used for leaching metal elements such as copper and zinc conducting complexation with ammonia; after a leaching agent is purified and subjected to impurity removing, zinc powder is added, valuable metal ions such as copper are replaced, a residual zinc-ammonia complex solution is then used for reproducing a zinc product, various kinds of valuable metal are separated and concentrated into tailings or oxidizing slag or replacement slag or vulcanization slag, replaced elementary copper and the residual zinc-ammonia complex solution correspondingly; and a high-grade non-vulcanized copper material and / or a non-vulcanized zinc material with the copper content higher than 2% and / or the zinc content higher than 10% are / is added, so that the concentration of copper and zinc in the leaching agent is improved. According to the comprehensive utilization method, the problem that the complex material containing lead, copper, zinc and the like is difficultly singly separated during flotation is solved, the method can be suitable for copper and zinc materials low in grade, the leaching rate is 80% or higher, and the content of manufactured products such as copper sponge and zinc oxide is also 97% or higher.

Description

technical field [0001] The invention relates to an ammonia smelting method for copper-zinc materials, in particular to a method for ammonia smelting separation and comprehensive utilization of complex multi-metal materials containing copper and zinc. Background technique [0002] China's copper ore resources are characterized by less rich ore, more lean ore, and more associated ore; China's copper-zinc ore resources are also characterized by less rich ore, more lean ore, and more associated ore. With the continuous mining of mines, the grade of copper raw ore in many mines continues to decline, and a large number of low-grade ores enter the dressing plant for sorting. Low-grade ores are often located at the junction of ore and rock, and have the characteristics of fine particle size and difficult dissociation of useful minerals, which have a great impact on normal production organization and sorting indicators. Therefore, it is necessary to develop efficient recovery techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B15/00C22B19/20C22B19/30C01G9/02C01G9/08
CPCC01G9/02C01G9/08C01P2004/64C01P2006/80C22B7/008C22B15/0078C22B19/24C22B19/30Y02P10/20
Inventor 李果
Owner 李果
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