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Flotation method for separation of copper-lead mixed concentrate adopting sodium hydroxide

A technology of sodium hydroxide and mixed concentrate, applied in flotation, solid separation, etc., can solve the problems of high production cost, poor separation effect, environmental pollution, etc., and achieve the effect of high recovery rate, no pollution, and environmentally friendly process

Inactive Publication Date: 2017-08-11
厦门紫金矿冶技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, both of the above two separation processes have serious environmental pollution problems. In today's society that pays attention to environmental protection, the traditional separation process can no longer meet the requirements of the times.
The separation effect of other methods is poor, and the production cost is too high, which is unrealistic

Method used

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  • Flotation method for separation of copper-lead mixed concentrate adopting sodium hydroxide
  • Flotation method for separation of copper-lead mixed concentrate adopting sodium hydroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: according to figure 1 In the process flow of the present invention shown, at first take 100 grams of copper-lead mixed concentrate dry mineral powder, then add water to adjust the slurry concentration to 18%, and then add it to a 500-milliliter flotation tank, and add it simultaneously in the flotation tank. 20 milliliters of sodium hydroxide solution of 10% concentration and 5 milliliters of zinc sulfate solution of 10% concentration, stirred for 3 minutes, then added 0.1 gram of ethylthiocarbamate, stirred for 1 minute and carried out copper-lead separation rough selection operation; Add 10 milliliters of sodium hydroxide solution of 10% concentration and 2.5 milliliters of zinc sulfate solution of 10% concentration simultaneously in the tailings of operation, stir for 3 minutes, then add 0.1 gram of ethylthiocarbamate, carry out copper scavenging after stirring for 1 minute Operation: Add 5 milliliters of sodium hydroxide solution of 10% concentration i...

Embodiment 2、 Embodiment 3

[0039] Embodiment 2, embodiment 3: according to figure 1 The technological process of the present invention shown, test procedure, medicament consumption and adding mode are identical with embodiment 1. The process indexes of embodiment 1, embodiment 2 and embodiment 3 of the present invention are shown in table 1.

[0040] Table 1 embodiment technological index

[0041]

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Abstract

The invention discloses a flotation method for separation of copper-lead mixed concentrate adopting sodium hydroxide. The flotation method lies in that sodium hydroxide and zinc sulfate are taken as a lead mineral inhibitor, isopropyl ethylthionocarbamate is taken as a copper mineral collector, after copper-lead mixed concentrate is subjected to roughing separation, the tailings is subjected to multi-stage copper scavenging to obtain lead concentrate, the concentrate is subjected to multi-stage copper concentration to obtain copper concentrate, so that high efficiency separation of copper-lead mixed concentrate is realized, the copper concentrate and lead concentrate obtained are high in recovery rate and low in mutual inclusion. According to the flotation method for separation of copper-lead mixed concentrate adopting sodium hydroxide, reagent removal and dehydration are not needed, mixed concentrate is directly subjected to separation, the flow structure is simple, reagents are fewer and low in dosage, and the process is environment-friendly and free from contamination.

Description

technical field [0001] The invention relates to the technical field of metal ore beneficiation, in particular to a new flotation method for separating copper-lead mixed concentrate with sodium hydroxide. Background technique [0002] For polymetallic deposits with copper, lead, pyrite and other minerals coexisting, there are problems such as poor ore deposits, difficult dressing and smelting processing, low recovery rate of ore dressing, and poor quality of concentrates. This type of ore is difficult to effectively recover copper and lead metals by adopting traditional pharmaceutical systems and technological processes. In the flotation process, since chalcopyrite and galena have similar buoyancy and are easy to float, copper and lead are floated together to obtain copper-lead mixed concentrate, and then copper-lead separation flotation is carried out . [0003] The main methods of traditional separation of copper and lead are to use cyanide method to "float lead to suppre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/08B03D1/002B03D1/012B03D101/06B03D101/02B03D103/04
CPCB03D1/002B03D1/012B03D1/082B03D1/087B03D2201/02B03D2201/06B03D2203/04
Inventor 鲁军田树国廖德华李广刘国晨
Owner 厦门紫金矿冶技术有限公司
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