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Purification technique for mineral separation of low-grade fine crystalline flake graphite

A fine-scale, low-grade technology, applied in the field of mineral processing and purification of low-grade fine-scale graphite, can solve the problems of unreasonable ore treatment, low regrinding efficiency, and high beneficiation cost, so as to reduce the cost of beneficiation and improve the fixation of carbon in concentrate content, reducing the effect of enrichment operations

Active Publication Date: 2016-02-03
鸡西市普晨石墨有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a low-grade fine flake graphite for the problems of long regrinding process, low regrinding efficiency, unreasonable middle ore treatment, unstable production and high mineral processing cost in the beneficiation process of low-grade fine flake graphite ore. The method of beneficiation and purification, the selection of reasonable beneficiation process and suitable beneficiation equipment, enable a large number of low-grade fine flake graphite resources to be efficiently, economically and rationally utilized

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  • Purification technique for mineral separation of low-grade fine crystalline flake graphite
  • Purification technique for mineral separation of low-grade fine crystalline flake graphite

Examples

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Embodiment 1

[0031] A low-grade fine flake graphite ore dressing and purification process, the process flow chart is shown in figure 1 , including the following steps:

[0032] A. Put the low-grade fine flake graphite raw ore with fixed carbon content of 8.93% into the jaw crusher for coarse crushing. The particle size of the coarsely crushed product is 10-15mm, and then put the coarsely crushed product into the roller crusher for fine crushing to -2mm. Use conical ball mill for coarse grinding, the grinding concentration is 65%, the grinding fineness is -0.074mm, and the content is 88.95%; add inhibitor quicklime and regulator water glass to the obtained ground low-grade fine flake graphite ore , Collector kerosene and foaming agent 2-octanol are fully stirred and roughed, the roughing concentration is 25%, the roughing time is 6.5min, and the rough concentrate and tailings a are obtained; the roughing agent formula is per ton Add 1500g of quicklime, 800g of water glass, 360g of kerosen...

Embodiment 2

[0043] A low-grade fine flake graphite ore dressing purification process, it comprises the following steps:

[0044] A. Put the low-grade fine flake graphite raw ore with fixed carbon content of 10.55% into the jaw crusher for coarse crushing, the coarse crushed product has a particle size of 10-15mm, and then put the coarse crushed product into the roller crusher for fine crushing to -2mm, Use conical ball mill for coarse grinding, the grinding concentration is 65%, the grinding fineness is -0.074mm, and the content is 87.89%; add inhibitor quicklime and regulator water glass to the obtained ground low-grade fine flake graphite raw ore , Collector kerosene and foaming agent 2-octanol are fully stirred and roughed, the roughing concentration is 25%, the roughing time is 7min, and the rough concentrate and tailings a are obtained; the formula of the roughing agent is low Add 1500g of quicklime, 1000g of water glass, 400g of kerosene and 100g of secondary octanol to the raw ore ...

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Abstract

The invention relates to a purification technique for mineral separation of low-grade fine crystalline flake graphite. The purification technique comprises a coarse-grinding roughing-separation process, a regrinding five-scrubbing seven-concentration process and a middling treating process. According to the regrinding fineness in the step of regrinding, the -0.045 mm content is 95%-98%, graphite and gangue mineral single bodies are fully dissociated, and the fixed carbon content and the recovery rate of concentrate are guaranteed; after regrinding, final concentrate is obtained after one time of concentration and five-scrubbing and six-concentration of the concentrate, the fixed carbon content of the final concentrate is 92%-94%, and the concentrate recovery rate reaches 90%-95%. According to the purification technique, the graphite and the gangue mineral single bodies are fully dissociated through one time of regrinding, scrubbing replaces regrinding in subsequent procedures, and the effects of diffusing concentrate foams and cleaning mineral particle surfaces can be achieved through the step of scrubbing. The purification technique has the advantages of being low in energy consumption, small in medium abrasion, simple and the like; the graphite mineral separation cost can be effectively lowered, and low-grade fine crystalline flake graphite minerals are utilized efficiently, economically and reasonably.

Description

technical field [0001] The invention relates to a graphite ore dressing and purification process, in particular to a low-grade fine-scale graphite ore dressing and purification process. Background technique [0002] Graphite is an important non-metallic mineral resource, which can be used in various fields of national economy and people's livelihood, and has very important industrial value. In recent years, the industry and countries have paid more and more attention to graphite, and many countries have listed it as an important strategic resource. At present, the world is facing urgent challenges such as clean energy, national security and human well-being, all of which depend on the development of advanced materials. Graphite materials are raw materials for many industries. Like rare earths, they have the title of "industrial monosodium glutamate" and cannot be used in industrial development. Or missing, has always attracted attention. [0003] my country is rich in grap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
CPCB03B7/00
Inventor 张凌燕邱杨率欧阳志军
Owner 鸡西市普晨石墨有限责任公司
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