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 low technical and economic indicators and high recovery cost of molybdenum-tungsten oxide ore

Inactive Publication Date: 2012-03-28
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD +1
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  • 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

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  • Processing technology for molybdenum and tungsten oxidized ore
  • Processing technology for molybdenum and tungsten oxidized ore

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The purpose of the present invention can be achieved by the following measures:

[0033] The process method of the present invention is as follows:

[0034] A. Molybdenum tungsten oxide ore is used as raw material, crushed to -200 mesh accounting for 43%, and the degree of dissociation of mineral monomer is ≥70%;

[0035] B. Use water glass, kerosene, 2 # Flotation of molybdenum sulfide in molybdenum tungsten oxide ore with oil or sodium hexametaphosphate, copper sulfate and butyl xanthate, and molybdenum sulfide concentrate is obtained after the coarse concentrate is selected;

[0036] C. The sulfide ore flotation tailings are classified, the classification particle size is 30μm, the coarse grain grade enters the coarse sand coarse separation process, and the fine grain grade enters the sludge coarse separation process;

[0037] D. The mud sand system uses sodium carbonate or sodium hydroxide or lime as the slurry regulator, and its dosage range is 300 g / ton ore; water glass is ...

Embodiment 2

[0042] The purpose of the present invention can be achieved by the following measures:

[0043] The process method of the present invention is as follows:

[0044] A. Molybdenum tungsten oxide ore is used as raw material, crushed to -200 mesh accounting for 49%, and the degree of dissociation of mineral monomer is ≥70%;

[0045] B. Use water glass, kerosene, 2 # Flotation of molybdenum sulfide in molybdenum tungsten oxide ore with oil or sodium hexametaphosphate, copper sulfate and butyl xanthate, and molybdenum sulfide concentrate is obtained after the coarse concentrate is selected;

[0046] C. Classify the sulfide ore flotation tailings, the classification particle size is 80μm, the coarse particles enter the coarse sand coarse separation process, and the fine particles enter the sludge coarse separation process;

[0047] D. The mud sand system uses sodium carbonate or sodium hydroxide or lime as the slurry regulator, and its dosage range is 400 g / ton of ore; water glass is gangue in...

Embodiment 3

[0052] The purpose of the present invention can be achieved by the following measures:

[0053] The process method of the present invention is as follows:

[0054] A. Molybdenum tungsten oxide ore is used as raw material, crushed to -200 mesh accounting for 53%, and the degree of dissociation of mineral monomer is ≥70%;

[0055] B. Use water glass, kerosene, 2 # Flotation of molybdenum sulfide in molybdenum tungsten oxide ore with oil or sodium hexametaphosphate, copper sulfate, butyl xanthate, and molybdenum sulfide concentrate after the coarse concentrate is selected;

[0056] C. The sulfide ore flotation tailings are classified, the classification particle size is 150μm, the coarse particle level enters the coarse sand roughing process, and the fine particle level enters the sludge roughing process;

[0057] D. The mud sand system uses sodium carbonate or sodium hydroxide or lime as the slurry regulator, and its dosage range is 1000 g / ton ore; water glass is gangue inhibitor, and its...

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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 obtainmolybdenum-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 beneficiation process for molybdenum tungsten oxide ore. Background technique [0002] Molybdenum and tungsten resources are my country's dominant resource minerals. my country's reserves, mining and processing, and trade volume of molybdenum and tungsten resources occupy an important position in the world, while tungsten is in the first place. Molybdenum in nature mainly exists in the form of sulfides such as molybdenite. Because of its natural floatability, molybdenum sulfide minerals can be better utilized by conventional flotation processes. 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 molybdenum product. The other small amount of molybdenum exists in the form of oxide ore such as molybdenum, calcium molybdenum, calcium molybdenum tungsten ore, and mo...

Claims

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Application Information

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