Molybdenum-tungsten oxide pre-finishing scavenging technology

A technology of molybdenum oxide and pre-concentration, which is applied in flotation, chemical instruments and methods, solid separation, etc., and can solve the problems of complex process and high enrichment ratio of concentrate

Active Publication Date: 2018-02-23
中国黄金集团中原矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the flotation column with many advantages such as simple structure, small footprint, low cost, high automation, and low infrastructure investment is favored by the mining industry and has been well developed in the mineral processing field. However, the existing molybdenum ore molybdenum oxide The tungsten pre-finishing and sweeping process adopts the flotation machine process, which is complicated. The low-profile microporous foam flotation column is used to replace the original flotation machine process. Compared with the flotation machine process, the process is simple and the concentrate is rich. Advantages such as high set ratio

Method used

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  • Molybdenum-tungsten oxide pre-finishing scavenging technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of molybdenum tungsten oxide pre-finishing sweeping process, comprises the following steps:

[0043] (1) Take the raw molybdenum oxide and tungsten oxide ore to be processed for crushing (conventional crushing method to a particle size of 25-50 mm), ore grinding (commonly used methods for grinding to a mass percentage of particles with a particle size of less than 75 μm is 75-80%), Classification and desliming treatment, and then use common methods to separate sulfide ores, and obtain tailings after sorting sulfide ores;

[0044] The grading treatment is as follows: using a hydrocyclone and performing grading treatment by conventional methods, the sedimentation obtained after grading directly enters the subsequent sulfide ore sorting procedure, and the overflow product obtained after grading is firstly subjected to desliming treatment. The product after mud treatment is mixed with the above-mentioned settling sand and enters the sulfide ore sorting procedure;

...

Embodiment 2

[0061] A kind of molybdenum tungsten oxide pre-finishing sweeping process, comprises the following steps:

[0062] (1) Take the unprocessed molybdenum tungsten oxide raw ore (the grade of tungsten oxide is 0.105-0.115%, and the grade of molybdenum is 0.13-0.16%) for crushing, grinding, grading, and desliming treatment, and then use common methods to separate sulfide ores, After the sorting is completed, the tailings after sorting the sulfide ore are obtained. The molybdenum grade in the tailings is 0.065-0.075%, and the tungsten grade is 0.105-0.115%;

[0063] (2) The tailings that step (1) obtains adopts two flotation machines (GF-1.1) to carry out the rough selection for the first time, the rough selection for the second time successively;

[0064] Specifically: first add tailings, sodium carbonate (420-510) g / t, water glass (870-1000) g / t and EZ-5 (216-264) g into the buffer tank of the first flotation machine / t, mix and stir evenly, after stirring evenly, pass the buffe...

Embodiment 3

[0076] A kind of molybdenum tungsten oxide pre-finishing sweeping process, comprises the following steps:

[0077] (1) Take the unprocessed molybdenum tungsten oxide raw ore (the grade of tungsten oxide is 0.105-0.115%, and the grade of molybdenum is 0.13-0.16%) for crushing, grinding, grading, and desliming treatment, and then use common methods to separate sulfide ores, After the sorting is completed, the tailings after sorting the sulfide ore are obtained. The molybdenum grade in the tailings is 0.07%, and the tungsten grade is 0.11%;

[0078] (2) The tailings that step (1) obtains adopts two flotation machines (GF-1.1) to carry out the rough selection for the first time, the rough selection for the second time successively;

[0079] Specifically: first add tailings, sodium carbonate (420-510) g / t, water glass (870-1000) g / t and EZ-5 (216-264) g into the buffer tank of the first flotation machine / t, mix and stir evenly, after stirring evenly, pass the buffer tank into th...

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Abstract

The invention discloses a molybdenum-tungsten oxide pre-finishing scavenging technology. The technology comprises the steps that firstly, breaking, grinding, grading and desliming are conducted on rawore; then sulfide ore sorting is conducted, and primary roughing and secondary roughing are conducted on tailings obtained after sorting is completed through a flotation machine; primary preconcentration is conducted on roughing concentrate obtained through roughing; secondary preconcentration is conducted on concentrate obtained through primary preconcentration; concentrate obtained through secondary preconcentration is sent into a concentrator for concentration treatment; and the treatment process of molybdenum-tungsten oxide pre-finishing scavenging is completed. By means of the molybdenum-tungsten oxide pre-finishing scavenging technology, the grade and recovery rate of the concentrate can be obviously improved, so that the recovery rate of the molybdenum-tungsten oxide rough concentrate is high; and the outstanding effect is achieved especially for molybdenum-tungsten oxide with the high mud content and the low disseminated grain size, the grade and recovery rate of the concentrate are very high, and the high economic value is achieved.

Description

technical field [0001] The invention belongs to the technical field of mine beneficiation technology, and in particular relates to a molybdenum and tungsten oxide pre-finishing and sweeping process, in particular to the application of a short flotation column in the molybdenum and tungsten oxide pre-finishing and sweeping process. technical background [0002] Molybdenum and tungsten are important strategic resources in my country and are widely used in iron and steel smelting, chemical industry, aerospace, electronics and other technical fields. In recent years, with the reduction of high-quality molybdenum and tungsten resources, rich ore resources are increasingly exhausted, and various poor, fine and difficult-to-select molybdenum-tungsten ores have become the source of molybdenum and tungsten resources. The content of tungsten and molybdenum resources in some refractory tungsten and molybdenum ores has reached a very large scale, but the ore body is thick and the grade ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/00B03D1/002B03D101/06B03D103/02
CPCB03B7/00B03B9/00B03D1/002B03D2201/007B03D2201/06B03D2203/02
Inventor 刘广宇董成龙
Owner 中国黄金集团中原矿业有限公司
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