Technique for floatation separation of hard washing copper zinc sulfuration mine

A sulfide ore, copper-zinc technology, applied in flotation, solid separation, etc., can solve the problems of poor ore adaptability, high cost, poor concentrate quality, etc., and achieve the effect of strong ore adaptability, reduced consumption, and high-efficiency separation

Active Publication Date: 2009-10-07
西部矿业集团科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of poor concentrate quality, high cost and poor adaptability to ore when zinc exists in the form of sphalerite when copper-zinc i

Method used

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  • Technique for floatation separation of hard washing copper zinc sulfuration mine
  • Technique for floatation separation of hard washing copper zinc sulfuration mine
  • Technique for floatation separation of hard washing copper zinc sulfuration mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The raw ore is a copper-zinc sulfide ore with chalcopyrite and sphalerite as the main useful components, and its raw ore grade is: copper 1.42%, zinc 0.98%.

[0026] Add inhibitor LY-02720g / t during ball milling, grinding fineness -200 mesh accounts for 75%, add collector LP-0218g / t, foaming agent 2 # The oil is 7g / t, and the copper minerals are preferentially floated out. The copper minerals floated out are subjected to three blank separations, and the copper roughing bottom flows through two copper sweeps, and LP-027g / t is added each time. After copper separation, add lime 1000g / t to the pulp to adjust the pH of the pulp between 9 and 10, and add zinc activator CuSO 4 400g / t, zinc collector butyl xanthate 130g / t, foaming agent 2 # The oil is 14g / t, and the zinc minerals that emerge are subjected to four times of beneficiation. During the process of beneficiation, lime is added to adjust the pH value of the pulp between 10 and 11. Lime is added each time at 200g / t. ...

Embodiment 2

[0030] For another raw ore with different grades, the difference in the properties of the raw ore compared with Example 1 is mainly reflected in the lower grade of copper, which is 0.98%; and the higher grade of zinc, which is 6.74%, and zinc exists in the form of sphalerite. Form copper-zinc polymetallic complex refractory sulfide ore. Add inhibitor LY-02500g / t during ball milling, grinding fineness -200 mesh is 80%, add collector LP-02 21g / t, foaming agent 2 # Oil 10g / t, copper minerals are firstly floated out, and the copper rough concentrate that floats out is selected twice, and the selection adopts blank selection, and copper roughing is followed by two times of sweeping, and the dosage of one agent for sweeping is: LP-027g / t, the dosage of the second agent for scanning is: LP-023g / t. After copper separation, add lime 200g / t to the pulp to adjust the pH of the pulp between 9 and 10, add CuSO 4 210g / t is used as the activator of zinc minerals, butyl xanthate 150g / t is ...

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Abstract

The present invention relates to a floatation separation mineral concentration technology for metal sulfuration mine, especially a technique for floatation separation of hard washing copper zinc sulfuration mine. The copper ore concentrate quality produced by a general copper-zinc differential flotation technique at the present time is low and cost is high. The technique of the invention includes a step of selecting copper and selecting zinc, the copper is floated firstly, the copper and the zinc is separated by using a collecting agent LP-02 with the addition of a combined inhibitor LY-02 under a neutrality condition of the slurry pH value. The technique has a strong adaptability, a stable production target; it is not only used for recovering copper, also improves the quality of the copper and zinc ore concentrate, as well as the copper and zinc recovery rate; the production cost is reduced greatly, the earnings level is improved and it has non environmental pollution.

Description

technical field [0001] The invention relates to metal sulfide ore flotation separation ore dressing technology, in particular to a process for refractory copper-zinc sulfide ore flotation separation. Background technique [0002] Due to the difficulty of copper-zinc separation, because the content of individual metal elements in most copper-zinc polymetallic symbiotic ores is low, and because copper sulfide and zinc minerals are minerals with similar thermodynamic properties, it is difficult to separate each other, which leads to copper sulfide It is difficult to effectively separate minerals and zinc sulfide minerals, which is manifested in the low recovery rate of main metals in copper and zinc concentrates and high impurity content in production. For these copper-zinc symbiotic or associated polymetallic sulfide ores, most mines either only separate a single copper concentrate, or separate a zinc concentrate, or are not effectively developed due to the difficulty of benef...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/004B03D1/02B03D1/018B03D1/012B03B1/00B03B1/04B03D101/02B03D101/04B03D101/06B03D103/02
Inventor 罗仙平严群周跃付丹吕中海祝军王福奎邓永斌苏明蓉
Owner 西部矿业集团科技发展有限公司
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