New flotation molybdenum concentrate filter dehydration technique

A technology for filtration and dehydration, molybdenum concentrate, applied in flotation, filtration separation, solid separation and other directions, can solve the problems of high labor intensity, frequent cleaning of ceramic filter plates, frequent replacement of equipment parts, etc., to increase production capacity and improve water permeability , the effect of low cost consumption

Inactive Publication Date: 2009-03-25
郴州市黄沙坪铁选矿有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a new technology for flotation molybdenum concentrate filtration and dehydration that can effe

Method used

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Examples

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Effect test

Embodiment 1

[0011] A new process for filtration and dehydration of flotation molybdenum concentrate, which is to send the flotation molybdenum concentrate with a mass concentration of 65% to a ceramic filter for pretreatment before filtration and dehydration; that is, first add dry concentrate to the flotation molybdenum concentrate pulp Calcium hypochlorite with an ore weight of 0.05‰, stir and mix evenly to modify the flotation molybdenum concentrate; then send the modified flotation molybdenum concentrate to a ceramic filter for filtration and dehydration, and the filter capacity is increased to 280kg / m 2 , The water content of the filter cake is 10.2%.

Embodiment 2

[0013] A new process for filtration and dehydration of flotation molybdenum concentrate, which is to send the flotation molybdenum concentrate with a mass concentration of 60% to a ceramic filter for pretreatment before filtration and dehydration; that is, to add dry concentrate to the flotation molybdenum concentrate Calcium chloride with a weight of 0.09‰, stirred and mixed evenly, so that the flotation molybdenum concentrate is modified; then the modified flotation molybdenum concentrate is sent to a ceramic filter for filtration and dehydration, and the filter capacity is increased to 195kg / m 2 , The water content of the filter cake is 12%.

Embodiment 3

[0015] A new process for filtration and dehydration of flotation molybdenum concentrate, which is to send the flotation molybdenum concentrate with a mass concentration of 55% to a ceramic filter for pretreatment before filtration and dehydration; that is, to add dry concentrate to the flotation molybdenum concentrate Lime with a weight of 0.10‰ is stirred and mixed evenly to modify the flotation molybdenum concentrate; then the modified flotation molybdenum concentrate is sent to a ceramic filter for filtration and dehydration, and the filter capacity is increased to 151kg / m 2 , The water content of the filter cake is 13.5%.

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Abstract

The invention relates to a flotation molybdenum concentrate filtering dehydration process. The flotation molybdenum concentrate is pretreated before being fed into a ceramic filter for filtering dehydration; MT07 No. modifying additive with the weight of 0.05 percent to 0.10 percent of that of dried concentrate is firstly added into the flotation molybdenum concentrate, and the mixture is agitated and mixed evenly to modify the flotation molybdenum concentrate; then the modified flotation molybdenum concentrate is fed into the ceramic filter for filtering dehydration, so as to obtain the concentrate with qualified dehydration indexes. The invention can effectively eliminate the problems such as blockage of a ceramic filter plate of the ceramic filter, and obviously improve the equipment capacity.

Description

technical field [0001] The invention relates to a method for processing molybdenum, tungsten and other non-ferrous metal concentrates for dehydration, in particular to a new process for filtering and dehydrating molybdenum concentrates through flotation. Background technique [0002] The particle size of flotation molybdenum concentrate is very fine, the particle size is less than 3μm, more than 10%, the minimum particle size is 0.13μm, and the viscosity of flotation molybdenum concentrate is high. According to the measurement, when the concentration of molybdenum concentrate is 68%, the viscosity can reach 3.4×10 -5 Pa.s and above. In the prior art, in order to effectively dehydrate, the filter is usually filtered by a ceramic filter acting on the principle of vacuum capillary, so as to ensure that the water content of the concentrate is low and meet the index requirements of concentrate production. Ceramic filter is a solid-liquid separation device designed by using the ...

Claims

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Application Information

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IPC IPC(8): B01D37/02B03D1/10
Inventor 刘华卓
Owner 郴州市黄沙坪铁选矿有限责任公司
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