Flotation method for separating silver from high leaching residues

A high leaching slag and flotation technology, applied in the field of flotation process, can solve the problems such as the lack of reference materials for chemicals and metering, the difference in mineral composition, etc., and achieve the effects of low cost, high recovery rate and simple process

Inactive Publication Date: 2011-10-26
赤峰中色库博红烨锌业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of flotation technology is a better way to recover silver, but the mineral composition of the slag varies greatly with different zinc smelting processes
For flotation of silver from high leaching slag, there are no reference materials for which reagent and metering to use

Method used

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  • Flotation method for separating silver from high leaching residues
  • Flotation method for separating silver from high leaching residues
  • Flotation method for separating silver from high leaching residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Mineral raw materials:

[0021] Table 1 Full analysis of ore samples

[0022]

[0023] Table 2 Phases of Silver

[0024]

[0025] (2) if figure 1 As shown, the flotation method of the present embodiment is: silver roughing, silver sweeping and silver concentration are carried out to the high leaching slag, and the silver roughing includes the following steps: (a) adding six Sodium metaphosphate, add 120 grams of sodium hexametaphosphate per ton of high leaching residue, stir for 6 minutes; (b) add activated carbon in the flotation tank, add 2500 grams of activated carbon per ton of high leaching residue, and stir for 6 minutes; (c) Add collector and foaming agent into the flotation tank, the collector uses Z-200 and butylamine black medicine, the foaming agent uses No. The amine black drug is 600 grams, and the No. 2 flotation oil is 10 grams. The silver scavenging step includes: adding a collector and a foaming agent in the flotation cell after rough sele...

Embodiment 2

[0027] (1) mineral raw material: same as embodiment 1.

[0028] (2) if figure 1 As shown, the flotation method of the present embodiment is: silver roughing, silver sweeping and silver concentration are carried out to the high leaching slag, and the silver roughing includes the following steps: (a) adding six Sodium metaphosphate, add 135 grams of sodium hexametaphosphate per ton of high leaching residue, stir for 8 minutes; (b) add activated carbon in the flotation tank, add 3500 grams of activated carbon per ton of high leaching residue, and stir for 5 minutes; (c) Add collector and foaming agent into the flotation tank, the collector uses Z-200 and butylamine black medicine, the foaming agent uses No. The amine black drug is 700 grams, and the No. 2 flotation oil is 11 grams. The silver scavenging step includes: adding a collector and a foaming agent in the flotation cell after rough selection, the collector uses Z-200 and butylamine black medicine, and the foaming agent ...

Embodiment 3

[0030] (1) mineral raw material: same as embodiment 1.

[0031] (2) if figure 1 As shown, the flotation method of the present embodiment is: silver roughing, silver sweeping and silver concentration are carried out to the high leaching slag, and the silver roughing includes the following steps: (a) adding six For sodium metaphosphate, add 110 grams of sodium hexametaphosphate per ton of high leaching residue, and stir for 9 minutes; (b) add activated carbon in the flotation tank, add 3000 grams of activated carbon for each ton of high leaching residue, and stir for 4 minutes; Add collector and foaming agent into the flotation tank, the collector uses Z-200 and butylamine black medicine, the foaming agent uses No. The amine black drug is 650 grams, and the No. 2 flotation oil is 12 grams. The silver scavenging step includes: adding a collector and a foaming agent in the flotation cell after rough selection, the collector uses Z-200 and butylamine black medicine, and the foami...

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Abstract

The invention discloses a flotation method for separating silver from high leaching residues. The flotation method comprises the steps of performing processes of silver rough flotation, silver scavenging and silver fine flotation on the high leaching residues. The process of silver rough flotation comprises the following steps: (a) adding sodium hexametaphosphate into high leaching residue slurry and stirring the mixture for 5-10 minutes, wherein 100-140 grams of sodium hexametaphosphate is added in one ton of high leaching residues; (b) adding activated carbon into a flotation tank and stirring the mixture for 4-6 minutes, wherein 2000-4000 grams of activated carbon is added in one ton of high leaching residues; and (c) adding a collecting agent and a foaming agent into the flotation tank, wherein Z-200 and D amine black medicine are taken as the collecting agent, flotation oil No.2 is taken as the foaming agent, and 50-150 grams of Z-200, 400-800 grams of butylamine aerofloat and 8-15 grams of flotation oil No.2 are added in one ton of high leaching residues. By using the flotation method provided by the invention, the silver recovery rate can reach 60-80%. Besides, the flotation method has the advantages of simple process, less chemical agent consumption and low cost.

Description

technical field [0001] The invention belongs to the technical field of flotation technology, and in particular relates to a method for flotation silver from high leaching slag. Background technique [0002] Chinese patent ZL200610101223.2 "Low Pollution Submerged Alum and Iron Removal Wet Zinc Smelting Method" is a relatively mature zinc hydrometallurgy method applied by Chifeng Hongye Zinc Smelting Co., Ltd. This method is suitable for processing zinc concentrate with complex components Mine, improve metal recovery rate, enhance the ability to remove impurities, improve the quality of final products, reduce raw and auxiliary materials and energy consumption, reduce pollution, and benefit environmental protection. The method mainly includes four process steps of neutral leaching, low-temperature pre-neutralization, high-temperature high-acid leaching, and low-pollution alum sinking for iron removal, and the ferrite slag is generated through the low-pollution alum sinking for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/018B03D101/02B03D101/04
Inventor 王凤朝马永涛李龙张春明葛英勇李若贵李连忠孙晓军肖常玲
Owner 赤峰中色库博红烨锌业有限公司
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