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A kind of beneficiation method of fine disseminated copper-lead-zinc-sulfur complex polymetallic ore

A technology of polymetallic ore and beneficiation method, which is applied in the field of metallurgy, and can solve the problems of difficult separation of copper-lead mixed concentrate, insufficient suppression depth, copper sulfide residue, etc.

Active Publication Date: 2014-10-29
ZIJIN MINING GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main disadvantage of the partial mixing-priority flotation method is that due to insufficient suppression depth, it is easy to cause zinc minerals to enter the copper-lead concentrate; Remains in copper-lead flotation tailings
In addition, due to the high flotation activity of copper and lead, copper-lead mixed concentrate separation is also difficult to achieve

Method used

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  • A kind of beneficiation method of fine disseminated copper-lead-zinc-sulfur complex polymetallic ore
  • A kind of beneficiation method of fine disseminated copper-lead-zinc-sulfur complex polymetallic ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: The crushed raw ore and water are added to a ball mill in a ratio of 1:1 for grinding, and the amount of sodium sulfide 225g / t and sodium carbonate 525g / t are added to the grinding machine (based on the weight of raw ore dry ore The same below), until the grinding fineness of the ore grinding product is -0.074mm, accounting for 95%; the control pulp рН value is 7.5-8.0, and the total sulfur mixed roughing is carried out twice in the flotation machine, and the first total sulfur Add 72g / t of collector butylxanthate and 37g / t of 2# oil to the mixed roughing, add 37g / t of butylxanthate and 22g / t of 2# oil to the second total sulfur mixed roughing t, two full-sulfur mixed roughing concentrates are combined to enter the concentration dehydration operation, and the full-sulfur mixed roughing tailings are subjected to full-sulfur mixed sweeping; the amount of collector butyl xanthate added is 22g / t and the amount of 2# oil is 12g / t carry out mixed sulfur sweeping, ...

Embodiment 2

[0035] Embodiment 2: According to figure 1 The embodiment of the technological process of the present invention, the test steps, process parameters, and medicament system are exactly the same as those in Example 1. The specific technological indexes of embodiment 1 and embodiment 2 of the present invention are shown in Table 1.

[0036] Table 1 embodiment of the present invention technological index

[0037]

[0038] Shown by the implementation result of embodiment 1 shown in table 1, embodiment 2 embodiment, adopt the inventive method, embodiment 1 raw ore contains Cu3.18%, Pb4.10%, Zn7.70%, S22.28% , can obtain the copper concentrate of copper grade 20.25%, copper recovery rate 89.21%, the lead concentrate of lead grade 61.51%, lead recovery rate 85.36%, the zinc concentrate of zinc grade 55.29%, zinc recovery rate 88.82%; Embodiment 2 The raw ore contains Cu4.30%, Pb6.41%, Zn11.45%, S30.10%, and obtained copper concentrate with copper grade of 21.77%, copper recovery r...

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Abstract

The invention relates to a beneficiation method for a veinlet disseminated ore body type copper-lead-zinc-sulfur complex polymetallic ore. The technical scheme adopted is that based on the feature of the veinlet disseminated ore body type copper-lead-zinc-sulfur complex polymetallic ore, a process of total sulfur fixed floating- partial copper-lead mixed floating separation-selective zinc-sulfur flotation is adopted, in combination with a way of concentration and fine grinding, for depth reagent removal, According to the method, the reagent removal is complete, the influence of ore mud on flotation is effectively eliminated, the copper, lead, zinc and sulfur can be divorced and recycle to the maximum extent, and accordingly, the content of other metallic elements in the concentration of the last one metallic element is obviously reduced.

Description

1. Technical field [0001] The invention relates to the metallurgical industry, in particular to a beneficiation method for fine disseminated copper-lead-zinc-sulfur complex polymetallic ores, which is especially suitable for processing copper-lead-zinc-pyrite type polymetallic ores with fine-grained-fine-grain embedded distribution. 2. Background technology [0002] Fine disseminated body Cu-Pb-Zn pyrite-type polymetallic ore has extremely complex properties. The main sulfide ores, such as chalcopyrite, galena, sphalerite, etc., not only have similar flotation characteristics, but also Cu-Pb-Zn metal The symbiotic relationship between sulfide ore minerals is very close, and the inter-metal content is high. The embedded particle size of chalcopyrite and galena is fine-fine, especially fine-grained chalcopyrite is extremely fine (0.05mm~0.001mm). The particle size is sparse or densely dispersed in sphalerite, and it is difficult for copper minerals and zinc minerals to dissoci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00
Inventor 鲁军李广吴双桥廖德华田树国岳丽琴崔丽凤穆国红
Owner ZIJIN MINING GROUP