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Beneficiation method for improving flotation indexes of microfine-grained scheelite

A mineral processing method and technology of scheelite, applied in flotation, solid separation, etc., can solve the problems of difficult and efficient flotation of fine-grained scheelite, achieve the effect of strengthening surface hydrophobicity and improving mineral processing indicators

Active Publication Date: 2017-09-08
CHINA MOLYBDENUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a beneficiation method for improving the flotation index of fine-grained scheelite, so as to solve the technical problem of beneficiation that is difficult for fine-grained scheelite to be efficiently flotation

Method used

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  • Beneficiation method for improving flotation indexes of microfine-grained scheelite

Examples

Experimental program
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Embodiment 1

[0024] Sodium dodecyl sulfonate was prepared to a concentration of 9×10 -3 The mol / L solution was added into a high-speed mixing barrel, and stirred at a speed of 5000 rpm for 8 minutes to prepare charged microbubbles with charged surfaces. Grind the scheelite ore to -0.074mm and the content is 80%, add 1500g / t sodium carbonate, 500g / t inhibitor carboxylated chitosan, 120g / t 731 oxidized paraffin wax soap for slurry adjustment, and then carry out flotation coarse The rougher concentrate and rougher tailings are obtained. The inhibitor carboxylated chitosan was added to the roughing concentrate for 5 times of beneficiation to obtain concentrate 1, the dosage of inhibitor for beneficiation 1 was 300g / t, the last 4 beneficiations were blank beneficiation, and the beneficiation of middle ore was returned sequentially . Add 80g / t collector 731 oxidized paraffin soap to the roughing tailings for the first scavenging, add 40g / t collector 731 oxidized paraffin soap to the scavenging...

Embodiment 2

[0029] Sodium lauryl sulfate was formulated to a concentration of 8.1×10 -3 The mol / L solution was added into a high-speed mixing barrel, and stirred at a speed of 6400 rpm for 5 min to prepare charged microbubbles with charged surfaces. Grind the scheelite ore to -0.074mm and the content is 90%, add 1200g / t sodium carbonate, 800g / t inhibitor carboxylated chitosan, 180g / t 731 oxidized paraffin wax soap for slurry preparation, and then carry out flotation Roughing to obtain roughing concentrate and roughing tailings. Inhibitor carboxylated chitosan was added to the rough beneficiation concentrate for 5 times of beneficiation to obtain concentrate 1, the amount of inhibitor carboxylated chitosan for the first beneficiation was 200g / t, and the last four beneficiation was blank beneficiation , the selected medium mines are returned in order. Add 100g / t collector 731 oxidized paraffin soap to the roughing tailings for the first scavenging, add 50g / t collector 731 oxidized paraffi...

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Abstract

The invention provides a beneficiation method for improving flotation indexes of microfine-grained scheelite, and belongs to the technical field of beneficiation. According to the beneficiation method, an electriferous surfactant is prepared into solution with certain concentration which is the critical micelle concentration of the electriferous surfactant, the solution is stirred at a high speed in a stirring barrel to generate electriferous micro-bubbles, the micro-bubbles are introduced into a microfine-grained scheelite flotation system, the electriferous micro-bubbles are selectively attached to the surfaces of valuable minerals through the electrostatic interaction by regulating and controlling the property of ore pulp, the surface hydrophobicity of the valuable minerals is enhanced, so that the flotation indexes of the microfine-grained scheelite are improved. The beneficiation method solves the technical problem that microfine-grained scheelite is difficult to recover effectively, and has important significance for realizing efficient utilization of low-grade refractory scheelite.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a mineral processing method for improving the flotation index of fine-grained scheelite. Background technique [0002] With the continuous development and consumption of mineral resources by human beings, rich ore resources and easy-to-handle ore resources are decreasing day by day. How to economically and efficiently utilize low-grade, fine-grained and complex-composition ores has become a challenge we are facing. In order to fully dissociate the useful minerals in refractory ores, it is often necessary to finely grind the ores. However, as the particle size decreases, the flotation behavior of mineral particles changes, and it is very difficult to recover these fine-grained useful minerals using conventional flotation processes. [0003] Compared with conventional minerals, the important reason why fine-grained minerals are difficult to recover by flotation is that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D1/012B03D1/016B03B1/00B03D101/06B03D101/02B03D103/02
CPCB03B1/00B03D1/002B03D1/012B03D1/016B03D2201/007B03D2201/02B03D2201/06B03D2203/02
Inventor 冯博张文谱彭金秀郭蔚朱贤文汪惠惠
Owner CHINA MOLYBDENUM
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