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Pre-flotation pretreatment method for fine-particle weathered tungsten ore

A pretreatment and weathering technology, applied in the field of comprehensive utilization of resources, can solve the problems of waste of tungsten resources and low recovery rate

Active Publication Date: 2013-09-04
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the past, the recovery technology of weathered tungsten ore mainly used gravity separation, but because the recovery rate was too low, basically only between 10-15%, resulting in the waste of most tungsten resources

Method used

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  • Pre-flotation pretreatment method for fine-particle weathered tungsten ore

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Embodiment 1

[0014] Using the pretreatment process of the present invention, experiments were carried out on the fine primary overflow produced by the desliming of a tungsten mine in a certain place in Hunan. In the on-site production, due to the large amount of ore slime, if this part of the slime enters the flotation process, the flotation conditions will be greatly deteriorated, so it needs to be washed to remove the sludge. However, a considerable part of the original fine-grained tungsten is taken away during desliming, and the grade of this part of tungsten resources is generally 2-3 times that of the selected grade of the concentrator, generally around 0.8%. Adopt the process method of the present invention, the concentration of ore pulp is controlled at about 40%, add sodium carbonate 2000g / t, lead nitrate 2000g / t, oleic acid 3000g / t respectively, after fully stirring with flotation agent in the primary mixing tank The ore slurry enters the secondary mixing tank through the high-sp...

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Abstract

The invention discloses a pre-flotation pretreatment process method for fine-particle weathered tungsten ore and is particularly applied to the flotation treatment of primary overflow and weathered tungsten ore which are generated through desliming. To solve the problems that the dissemination particle size of the weathered tungsten ore is extremely fine and accordingly the weathered tungsten ore is difficult to recover through flotation, the method utilizes treatment methods of high-concentration ore pulp shear-flocculation stirring and high-speed jet flow pre-mineralization to subject the fine-particle weathered tungsten ore to pre-flotation pretreatment, thereby having good effects, achieving the flotation recovery of the weathered tungsten ore and having a flotation recovery rate of more than 50% and a concentrate rate of more than 10%. The pre-flotation pretreatment process method for the fine-particle weathered tungsten ore has the advantage of being simple in process and good in effects.

Description

technical field [0001] The invention relates to a pretreatment process specially used for micro-weathered tungsten ore before flotation, in particular to a process for pre-treating micro-weathered tungsten ore by using high-concentration ore pulp shearing flocculation stirring and high-speed jet premineralization treatment method The method belongs to the technical field of resource comprehensive utilization. Background technique [0002] The mining grade of tungsten resources in our country is getting lower and lower, most of them are around 0.4% or even lower at present. A large amount of scheelite resource endowment is poor, with complex components, fine particle size and low grade (81.4% grade is less than 0.4%). Moreover, there are also a large number of weathered tungsten ore resources, which are generally called refractory tungsten ore resources. The main reason for its difficulty is that the surface activity of minerals is poor, and the interaction with collectors ...

Claims

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Application Information

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IPC IPC(8): B03B1/00
Inventor 孙伟胡岳华耿志强刘润清
Owner CENT SOUTH UNIV
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