Beneficiation reagent for separating lead zinc ores from lead zinc sulphide ores containing carbon and beneficiation method

Abstract

Beneficiation reagent for separating lead zinc ores form lead zinc sulphide ores containing carbon and a beneficiation method resolve the problem that existing beneficiation reagent for separating lead zinc is poor in effect and high in cost. The beneficiation reagent includes, by weight, 1 part of lime, 600 parts of copper sulfate, 40 parts of methyl ethionine ester and 5 parts of terpenic oil. The beneficiation method comprises following steps: lead roughing: adding 3kg / t of lime, 1500g / t of zinc sulfate, 500g / t of sodium sulphite, 80g / t of dithiocarbamate and 5g / t of terpenic oil into raw ores; lead scavenging; twice lead concentration; zinc roughing: adding 1kg / t of lime, 600g / t of copper sulfate, 40g / t of methyl ethionine ester and 5g / t of terpenic oil into tailings of lead scavenging; zinc scavenging; and primary, secondary and tertiary zinc concentration. The beneficiation reagent and the beneficiation method are good in beneficiation effect and low in cost.

Description

[0001] technical field [0002] The invention belongs to the technical field of mineral flotation processing, and in particular relates to a beneficiation agent and a beneficiation method for separating lead-zinc ore from carbon-containing lead-zinc sulfide ore. Background technique [0003] The beneficiation process of lead-zinc sulfide ore mainly adopts lead-zinc mixed flotation and priority flotation process. Because the carbon content in the carbon-containing, low-lead, high-zinc sulfide ore is about 6.0%, the concentrator adopts the priority flotation process in the design, and because the production index has been unsatisfactory, it is changed to a mixed flotation process, and the mixed concentrate is carried out with a shaker Lead and zinc gravity separation. In priority flotation, the grade of lead concentrate is low, the recovery rate of lead metal is low, and the grade of zinc contained in lead is high, which affects the recovery of zinc metal; the resulting benef...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor separation effect and high cost of the mineral processing agent for separating lead and zinc in the existing carbon-containing, low-lead, and high-zinc sulfide ores, the present invention provides a mineral processing agent for separating lead-zinc ore from carbon-containing, lead-zinc sulfide ores, Composed of the following raw materials in weight ratio: 1 weight part of lime, 600 weight parts of copper sulfate, 40 weight parts of methyl ethyl thiamine grease, 5 weight parts of terpineol oil

[0006] In order to solve the problems of poor separation effect, complicated process and high cost of the separation process of lead and zinc in the existing carbon-containing low-lead and high-zinc sulfide ores, the present invention also provides a method for separating lead and zinc from carbon-containing lead-zinc sulfide ores. The beneficiation method of ore, its technical scheme is as follows:

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