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Tungsten ore floatation collecting agent and application thereof

A collector and flotation technology, used in flotation, solid separation, etc., can solve the problems of poor flotation collection effect, and achieve the effect of good selective collection capacity, convenient material acquisition, and improved surface activity.

Active Publication Date: 2013-01-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of poor flotation collection effect of black and scheelite, the object of the present invention is to propose a kind of oxidized ore such as black and scheelite with high efficiency, good selectivity, easy solubility in water, convenient operation and low production cost. Flotation collector

Method used

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  • Tungsten ore floatation collecting agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The artificial mixed ore flotation experiment was carried out on the XFG hanging tank flotation machine. The 2.0g raw ore sample weighed is a mixed sample of scheelite and calcite in a ratio of 1:1, put it into a 40ml flotation tank, add 30ml of distilled water, adjust the slurry for 1min, adjust the pH value with HCl or NaOH, and use After the PHS-3C type precision pH meter measures the pH value, add 200 grams / ton of raw ore of mixed collector of the present invention (mass proportion is: lauric acid 20%, myristic acid 20%, isooctane 10%, Oleic acid 20%, arachidonic acid 15%, 5-nonanone 5%, dodecanal 5%, iso-eicosyl ether 5%) stirring for 3 minutes, flotation for 4 minutes, the new collector can be obtained in a wide range of pH The recovery rate of scheelite is above 90%, while the recovery rate of calcite is below 40%.

Embodiment 2

[0017] For a certain ore containing black and scheelite in Hunan, the original ore contains WO 3 0.38%, take 500g raw ore by crushing and grinding, add water until the pulp contains 30% solid weight, add lime 1000 g / t raw ore, sodium carbonate 2000 g / t raw ore, water glass mixture 3500 g / t raw ore, add the present invention Described mixed collector 300 grams / ton raw ore (mass proportion is: lauric acid 20%, myristic acid 20%, isooctane 10%, oleic acid 20%, arachidonic acid 15%, 5- 5% nonanone, 5% dodecanal, 5% iso-eicosyl ether) have carried out laboratory flotation research, at room temperature after a rough three sweep four fine can be obtained black, scheelite coarse concentrate, containing WO 3 38.8%, job recovery rate 82.5%. The black tungsten and scheelite crude concentrates can be further processed to obtain commercial black tungsten concentrates and scheelite concentrates.

Embodiment 3

[0019] A small-scale test was carried out on the actual ore of a black and scheelite mine in Xinjiang, and good technical indicators were obtained. Raw ore contains WO 3 0.78%, take 500g raw ore by crushing and finely grinding, add water until the pulp contains 35% solid weight, add lime 1000 g / t raw ore, sodium carbonate 2000 g / t raw ore, water glass mixture 3500 g / t raw ore, add the present invention Described mixed collector 200 grams / ton (mass proportion is: lauric acid 15%, myristic acid 18%, isooctane 8%, oleic acid 25%, arachidonic acid 10%, 5-nonanone 8%, dodecanal 8%, iso-eicosyl ether 8%) raw ore has been carried out laboratory flotation research, after a rough separation at room temperature, tungsten rough concentrate can be obtained, containing WO 3 10.8%, and the job recovery rate is 88.3%. As a result, better flotation enrichment has been achieved, and the recovery rate of tungsten ore is also higher. It can be seen that the high-efficiency collector of the pre...

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Abstract

The invention relates to a tungsten ore floatation collecting agent and application thereof. The collecting agent is prepared from the following ingredients in mass percent: 15 to 20 percent of lauric acid, 15 to 20 percent of myristic acid, 10 to 15 percent of isooctane, 20 to 30 percent of oleic acid, 10 to 15 percent of arachidonic acid, 5 to 10 percent of 5-nonanone, 5 to 10 percent of dodecyl aldehyde and 5 to 10 percent of isomer 20 ether. The floatation collecting agent is applicable for wolframine and scheelite floatation. When being used, the floatation collecting agent is added intoraw ore according to the proportion of 200 to 500g / ton. The organic mixture improves the selective collecting capability of fatty acid type medicine agents to the tungsten ore. Compared with oxidizedore collecting agents of alkyl sulfonic acid (alkyl sulfonate), phosphoric acid and swelling acid, the invention can not cause environment pollution. Compared with hydroximic acid, the invention has the advantages that the cost is low, and the pipeline can not be blocked for causing the operation difficulty and the mineral dressing index influence. When being used in the scheelite floatation, theinvention has the predominant collecting performance, and belongs to the high-efficient floatation collecting agent for the wolframine and the scheelite.

Description

technical field [0001] The invention belongs to the field of mineral processing, in particular to a high-efficiency selective collector compound for tungsten ore flotation, in particular to a flotation collector suitable for black and scheelite and its application. Background technique [0002] At present, collectors for recovering oxidized ores such as black and scheelite by flotation method are roughly divided into three categories: 1. Fatty acid collectors, such as tall oil, oleic acid, oxidized paraffin soap, etc.; 2. Alkanes Sulphonic acid (salt), phosphoric acid and swollen acid collectors; 3. Hydroxamic acid and copper iron. Hydroxamic acid-based mixed collector is used, water glass mixture is used as inhibitor, lead nitrate is used as activator, and scheelite is floated in neutral medium slurry. Among the above three collectors, fatty acid collectors are cheaper, but have poor selectivity and low enrichment ratio of tungsten crude concentrate. Alkyl sulfonic acid (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/008B03D101/02B03D103/04
Inventor 孙伟胡岳华杨耀辉刘红尾
Owner CENT SOUTH UNIV
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