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Copper-lead-zinc mixed ore pulp separation process

A mixed ore, copper-lead technology, applied in flotation, wet separation, solid separation, etc., can solve the problem of low efficiency of copper-lead-zinc separation, inability to obtain single lead concentrate, zinc concentrate, high mutual content of concentrate, etc. problem, to achieve the effect of improving the separation efficiency of copper and zinc

Inactive Publication Date: 2021-04-09
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a copper-lead-zinc mixed pulp separation process to solve the problem of low copper-lead-zinc separation efficiency, poor index and high mutual content of concentrates when processing copper-lead-zinc mixed pulp in the prior art. Single lead concentrate, zinc concentrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, a copper-lead-zinc mixed pulp separation process, comprising the following steps, step 1, adding activated carbon 1000-2000 g / t raw ore and sodium sulfide 2000-5000 g / t raw ore to the copper-lead-zinc mixed pulp and stirring 5 Minutes later, add water to adjust the pulp concentration to 10-15%; step 2, feed the pulp in step 1 evenly into the shaking table, the stroke of the shaking table is 7-9mm, and the stroke frequency is 330-350 times / min, and the The ore concentration is 10-15%, and the gravity separation of lead and copper-zinc minerals is carried out to obtain lead concentrate and copper-zinc concentrate slurry; step 3, add sulfurous acid 3000-5000 to the copper-zinc concentrate slurry in step 2 After the gram / ton raw ore is inflated and stirred, the aeration volume is 20-30m 3 / h, the aeration and stirring time is 20-30min, the pH value of the pulp is 6, and the mass fraction of the pulp concentration is 20%-25%; then add zinc sulfate 2000g / ton raw...

Embodiment 2

[0014] Example 2, in the copper-lead-zinc mixed pulp separation process described in Example 1, 1500 g / t of activated carbon and 3000 g / t of sodium sulfide are added in the step 1.

Embodiment 3

[0015] Embodiment 3, in a kind of copper-lead-zinc mixed pulp separation process described in embodiment 1 or 2, the stroke of shaking table in the described step 2 is 8mm, and the number of strokes is 340 times / min, and the ore concentration is 13 %.

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PUM

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Abstract

The invention discloses a copper-lead-zinc mixed ore pulp separation process. The copper-lead-zinc mixed ore pulp separation process comprises the steps that copper-lead-zinc mixed concentrate is subjected to reagent removal hydrophilic pretreatment, copper-zinc and lead minerals are separated through shaking table gravity separation, and the copper-zinc minerals are subjected to copper-zinc separation after being subjected to aeration stirring pretreatment in a sulphurous acid system. Through hydrophilic pretreatment of the copper-lead-zinc mixed ore pulp, the gravity separation efficiency is improved, lead minerals are sorted out in advance by utilizing the specific gravity difference, and the problems that lead is difficult to restrain after mixed concentrate is finely ground, so that concentrate mutual content is high, and selling is influenced are solved; the copper-zinc concentrate adopts an oxidation-reduction system constructed in a sulphurous acid inflation stirring environment to clean the surface of the copper mineral, expose the fresh surface and further inhibit the hydrophilicity of the surface of the zinc mineral, so that the copper-zinc separation efficiency is improved, and single copper concentrate, lead concentrate and zinc concentrate are obtained; and the problems that single lead concentrate and zinc concentrate cannot be obtained through traditional copper-lead-zinc mixed ore pulp separation, the separation efficiency is low, the concentrate mutual content is high, and the concentrate value is low are solved, and mineral resources are saved.

Description

technical field [0001] The invention relates to the technical field of separation of nonferrous metal minerals, in particular to a copper-lead-zinc mixed pulp separation process. Background technique [0002] Commonly used copper, lead and zinc separation methods include copper, lead and zinc priority flotation, partial mixed flotation of copper and lead - tailings zinc separation - separation of copper and lead, full mixed flotation of copper, lead and zinc - separation of copper and lead and zinc. Due to the excessive amount of beneficiation reagents added in the process of desulfurization of iron symbiotic non-ferrous metal ores, copper, lead, zinc and nonferrous metals in iron tailings can only be obtained by full-mix flotation process to obtain mixed pulp of copper, lead and zinc. The ore symbiosis is closely related, and the copper-lead-zinc mixed concentrate can only be obtained by full mixed flotation. [0003] With the improvement of the technical level of the smel...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B9/00B03D1/018B03B5/04B03B5/44C22B15/00C22B19/02B03D101/06B03D103/04
CPCB03B7/00B03B9/00B03D1/018B03B5/04B03B5/44C22B15/001C22B19/02B03D2201/06B03D2203/04
Inventor 王李鹏任琳珠巩明辉包玺琳刘剑王婷霞苗梁
Owner NORTHWEST RES INST OF MINING & METALLURGY INST