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Processing technology for molybdenum and tungsten oxidized ore

A technology of tungsten oxide ore and oxide ore, which is applied in flotation, chemical instruments and methods, solid separation, etc., can solve the problems of high recovery cost of molybdenum-tungsten oxide ore and low technical and economic indicators

Inactive Publication Date: 2008-07-23
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Molybdenum tungsten oxide ore has not been industrially implemented due to high recovery costs and low technical and economic indicators; Claymax Corporation of the United States and my country's Luanchuan Molybdenum Mine have only carried out preliminary beneficiation experiments on local rich oxide molybdenum ore, but have not yet developed and utilized

Method used

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  • Processing technology for molybdenum and tungsten oxidized ore

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Comparison scheme
Effect test

Embodiment 1

[0033] The object of the present invention can be achieved through the following measures:

[0034] Processing method of the present invention is as follows:

[0035] A. The raw material is molybdenum tungsten oxide ore, crushed to -200 mesh, accounting for 43%, and the dissociation degree of mineral monomers is ≥70%;

[0036] B. Using water glass, kerosene, 2 # Oil or sodium hexametaphosphate, copper sulfate, butyl xanthate flotation molybdenum sulfide in molybdenum tungsten oxidized ore, and the rough concentrate is refined to obtain molybdenum sulfide concentrate;

[0037] C. Classify the flotation tailings of sulfide ore, the classification particle size is 30 μm, the coarse-grained grade enters the coarse sand roughing process, and the fine-grained grade enters the slime roughing process;

[0038] D. The mud sand system uses sodium carbonate or sodium hydroxide or lime as the slurry regulator, and the dosage range is 300 g / ton ore; sodium silicate is the gangue inhibito...

Embodiment 2

[0043] The object of the present invention can be achieved through the following measures:

[0044] Processing method of the present invention is as follows:

[0045] A. The raw material is molybdenum tungsten oxide ore, crushed to -200 mesh, accounting for 49%, and the dissociation degree of mineral monomers is ≥70%;

[0046] B. Using water glass, kerosene, 2 # Oil or sodium hexametaphosphate, copper sulfate, butyl xanthate flotation molybdenum sulfide in molybdenum tungsten oxidized ore, and the rough concentrate is refined to obtain molybdenum sulfide concentrate;

[0047] C. Classify the flotation tailings of sulfide ore, the classification particle size is 80μm, the coarse-grained grade enters the coarse sand roughing process, and the fine-grained grade enters the slime roughing process;

[0048] D. The mud sand system uses sodium carbonate or sodium hydroxide or lime as the slurry regulator, and the dosage range is 400 g / ton ore; water glass is the gangue inhibitor, an...

Embodiment 3

[0053] The object of the present invention can be achieved through the following measures:

[0054] Processing method of the present invention is as follows:

[0055] A. The raw material is molybdenum tungsten oxide ore, crushed to -200 mesh, accounting for 53%, and the dissociation degree of mineral monomers is ≥70%;

[0056] B. Using water glass, kerosene, 2 # Oil or sodium hexametaphosphate, copper sulfate, butyl xanthate flotation molybdenum sulfide in molybdenum tungsten oxide ore, and the rough concentrate is selected to obtain molybdenum sulfide concentrate;

[0057] C. Classify the flotation tailings of sulfide ore, the classification particle size is 150μm, the coarse-grained grade enters the coarse sand roughing process, and the fine-grained grade enters the slime roughing process;

[0058] D. The mud sand system uses sodium carbonate or sodium hydroxide or lime as the slurry regulator, and the dosage range is 1000 g / ton of ore; sodium silicate is the gangue inhibi...

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Abstract

The invention discloses a beneficiation process of a molybdenum-tungsten oxide ore. The process of which is that: the liberation degree of ore crushing is higher than or equal to 70%; the flotation of molybdenum sulfide is preferred; the floatation tailing is classified and then a separation of slime and sand is carried out, wherein a slime and sand system takes alkali as the conditioning agent, sodium silicate as the depressant, and emulsified fatty acid as the collecting agent. The rough concentrate obtained from the separation of slime and sand is concentrated after being blended to obtain molybdenum-tungsten oxide ore collective concentrate. The collective concentrate is grounded again and added with the depressant, then a secondary concentrate can be gained through the concentration; the secondary concentrate is concentrated by means of Peter Roph method to obtain scheelite ore and oxidized molybdenum-tungsten beneficiation concentrate. The invention has the advantages that: 1. the invention discloses a beneficiation process flow for treating molybdenum-tungsten oxide ore; 2. the invention solves the difficulty of lowe technical specification of molybdenum - tungsten oxide ore beneficiation; 3. the invention completes laboratory tests and researches and fulfills industrialized implementation for the first time in China.

Description

technical field [0001] The invention relates to a beneficiation process, in particular to a molybdenum-tungsten oxide ore beneficiation process. Background technique [0002] Molybdenum and tungsten resources are the dominant resource minerals in my country. The reserves, mining and processing volume and trade volume of molybdenum and tungsten resources in my country occupy an important position in the world while tungsten occupies the first place. Molybdenum in nature mainly exists in the form of molybdenite and other sulfides. Molybdenum sulfide minerals can be better utilized by conventional flotation beneficiation process because of their natural buoyancy. The general beneficiation process can obtain molybdenum concentrate grade>= 45%; molybdenum metal recovery rate > = 85% of the product; the product is directly sold as a primary product of molybdenum. In addition, a small amount of molybdenum exists in the form of oxide ores such as molybdenum China, molybdenum-...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03D1/018B03D1/002B03D1/004B03B5/34B07B1/28B03B5/62B03B1/00B03D101/00B03D101/06B03D101/02B03D103/04
Inventor 赵平张艳娇刘广学
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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