Ore dressing method for metal containing secondary copper sulfide ores

A technology for copper sulfide ore and beneficiation method, applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of undetected gold-bearing secondary copper sulfide ore beneficiation method, etc., to improve separation efficiency and hydrophobic selection. The effect of sexual ability

Inactive Publication Date: 2019-10-01
ZIJIN MINING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The inventor conducted a search of prior published literature, but no beneficiation method suitable for gold-bearing secondary copper sulfide ore was detected

Method used

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  • Ore dressing method for metal containing secondary copper sulfide ores
  • Ore dressing method for metal containing secondary copper sulfide ores
  • Ore dressing method for metal containing secondary copper sulfide ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The raw ore contains Cu 2.83%, Au1.59g / t, S18.49%. The raw ore crushed to less than 2mm is mixed with water at a ratio of 2:1 and fed into the mill for grinding, and calcium oxide 2500g / t is added , grind the ore until the product fineness is -0.075mm, accounting for 50%, and the pH value of the slurry is 10.50; put the ground mineral into the hanging tank flotation machine, add the collector Z-200, the dosage is 30g / t, and stir for 2 minutes Carry out copper semi-priority flotation, concentrate (foam product) is copper concentrate 1(k Cu1 ), the tailings enter the copper-sulfur partial mixed flotation roughing operation; the collector butyl xanthate and the foaming agent terpineol oil are added to the copper semi-priority flotation tailings, and the dosages are 100g / t and 20g / t respectively. After stirring for 2 minutes and 1 minute, copper-sulfur partial flotation roughing is carried out. The concentrate (foam product) is copper-sulfur mixed concentrate, which enters ...

Embodiment 2

[0045] The raw ore contains 2.78% of Cu, 1.59g / t of Au, and 18.46% of S. The process steps, conditions, and medicament system are the same as in Example 1.

Embodiment 3

[0047] The raw ore contains 3.33% Cu, 2.27g / t Au, and 19.94% S, and the process steps, conditions and medicament system are the same as in Example 1.

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Abstract

The invention relates to an ore dressing method for metal containing secondary copper sulfide ores. The method is characterized in half preferential copper floatation, branched Cu-S collective-selective floatation roughing, branch Cu-S separation roughing and differential reagent adding. Crude ores (a) are conventionally ground. Copper concentrate products 1 (KCu1) are obtained through half preferential copper floatation. Cu-S collective-selective floatation roughing is carried out in two paths: Cu-S collective-selective floatation scavenging and re-grinding Cu-S separation roughing. On one path, ore re-grinding and Cu-S separation roughing are carried out; and Cu-S separation roughing is carried out in two branches: on one branch, copper concentrate products 2 (KCu2) are obtained by carrying out secondary copper concentrating on copper crude ores and concentrates; and on the other branch, tailing third Cu-S separation scavenging, sulfur roughing and the sub-branches of carrying out secondary sulfur concentrating to obtain sulfur concentrate products (Ks) and carrying out sulfur scavenging to obtain tailings 2(X2) are carried out. On the other path, Cu-S collective-selective floatation scavenging is carried out, and tailings 1 (X1) are obtained through third collective-selective floatation scavenging. The method not only can realize Cu-S separation and ensure the grades and recycling rates of the copper concentrates and the sulfur concentrates, but also can reduce energy consumption, increase separation indexes and realize the early recycling of recyclable usable minerals in the ores. The method has the advantages of low ore grinding cost, simple reagent principles, stable and reliable technical process, great target mineral recycling effect, remarkable energy saving and consumption reduction and the like.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a beneficiation method for gold-bearing secondary copper sulfide ore, which is particularly suitable for the treatment of copper sulfide ore in which copper mineral embedding is uneven in thickness and associated gold is mainly sulfide-wrapped gold. Background technique [0002] Copper in nature mainly exists in the form of native copper, copper sulfide and copper oxide. The recovery of copper sulfide ore is mainly based on the flotation method, and the traditional sorting process is mainly based on the priority flotation process, the mixed flotation and separation process, the priority flotation and the mixed flotation process, etc. [0003] Secondary copper sulfide ores with high sulfur content, because copper minerals are easy to oxidize, after oxidation, more copper ions enter the pulp to activate pyrite, pyrite is difficult to suppress, making copper-sulfur separa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B1/00B03B7/00B03B9/00B03D1/02B03D1/012B03D101/02B03D101/04B03D103/02
CPCB03B1/00B03B7/00B03B9/00B03D1/012B03D1/02B03D1/028B03D2201/02B03D2201/04B03D2203/02
Inventor 傅飞龙甘永刚田树国杨远坤陈晓芳周利华许波
Owner ZIJIN MINING GROUP
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