Collophanite dressing technology

A technology of collophosite and process, which is applied in the beneficiation process of middle and low-grade Shifang collophosphine, and in the field of collophosite beneficiation process, which can solve the problems of large area, waste of phosphate resources, and complicated beneficiation system, etc. Achieve the effects of avoiding waste, good development and utilization, and good economic benefits

Inactive Publication Date: 2015-11-04
CENT SOUTH UNIV +1
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  • Claims
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Problems solved by technology

[0010] The present invention is realized through the following technical scheme: a collophosite mineral processing process, the processing process includes: using a mineral processing device to process phosphate slurry, and separately concentrating the concentrate slurry and tailings slurry obtained from the mineral processing to obtain phosphorus Concentrate and tailings, this process overcomes the shortcomings of the existing beneficiation system, which is complicated and occupies a large area. 2 o 5 It is suitable for the development and utilization of medium and low-grade phosphate rock, especially for low- and medium-grade collophosphine resources, which can be better developed and utilized, avoiding the waste of phosphate rock resources

Method used

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Embodiment 1

[0063] This embodiment relates to the treatment process of medium and low-grade phosphate rock, and selects Shifang Qingping County's medium and low grade (P 2 o 5 Grade 25%) phosphate rock, the specific steps include: setting up a beneficiation device to beneficiate the phosphate rock pulp, and concentrating the concentrate pulp and tailings pulp obtained from the beneficiation to obtain phosphorous concentrate and tailings.

[0064] In this embodiment, the beneficiation device includes a roughing flotation column, a concentrating flotation column and a sweeping flotation column, and the described beneficiation steps are as follows:

[0065] A: Rough selection, the phosphate rock slurry is sent to the rougher flotation column for mineralization flotation, the upper foam layer is sent to the selection flotation column, and the operation of step B is completed, and the middle layer of pulp is sent to the rougher flotation column for mineralization flotation again. Chemical flo...

Embodiment 2

[0069] This embodiment is based on the ore dressing device in Example 1, and involves the treatment process of medium-grade phosphate rock in Shifang, Qingping, and Ping'an County. The treatment process is combined with the ammonium hydrogen calcium phosphate process. Calcium Hydrogen Slurry Pool, P 2 o 5 Phosphate pulp with a grade of 27% (the water content is about 30%, and the impurities MgO, Fe contained in it 2 o 3 and Al 2 o 3 The total amount is 15%) for mineral processing, and the concentrate slurry obtained from mineral processing is concentrated to produce phosphorus concentrate with a water content of 28-32% and sent to the ammonium hydrogen calcium phosphate extraction tank; the tailings slurry obtained from mineral processing is cleaned of impurities , concentrating, and filtering to obtain tailings and send them to the cement raw meal production section.

Embodiment 3

[0071] The difference between this embodiment and Embodiment 2 is that: between the ammonium phosphate and hydrogen calcium ore pulp pool and the ore dressing device involved in this embodiment, a slurry dosing pool is provided, and slurry mixing liquid and chemicals are added in the slurry dosing pool, according to Percentage meter, the P 2 o 5 Phosphate pulp with a grade of 27% contains: MgO, Fe 2 o 3 and Al 2 o 3 The total amount is 12%, and its water content is 58%.

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Abstract

The invention discloses a collophanite dressing technology. The treatment technology comprises: dressing phosphoric ore pulp by an ore dressing device, and respectively concentrating concentrate pulp and tailing pulp, obtained by ore dressing, so as to obtain phosphoric concentrate and tailing. Ore dressing verification is sequentially carried out medium and low grade phosphoric ore by the treatment technology. Superior phosphoric concentrate containing 31-33% of P2O5 is obtained through treating low-grade phosphoric ore containing 15-20% of P2O5. Superior phosphoric concentrate containing 32-35% of P2O5 is obtained through treating medium-grade phosphoric ore containing 25-27% of P2O5. The removal rate of MgO is 90%, and the removal rate of R2O3 (Fe2O3 and Al2O3) is 80-90%. The chemicals are nontoxic and harmless, are easy to degrade in life, are environment-friendly and meet environment protection requirements.

Description

technical field [0001] The invention relates to a mineral dressing process of collophosite, in particular to the mineral processing process of middle and low-grade Shifang collophosite, and belongs to the technical field of mineral processing. Background technique [0002] Phosphate rock is an important chemical mineral raw material, which can be used to make phosphate fertilizer, and is also the material basis of fine phosphorus chemical industry, such as: yellow phosphorus, phosphoric acid, phosphide and other phosphates, etc., which can be used in medicine, food, matches, Dyestuff, sugar, ceramics, national defense and other industrial sectors. Phosphate rock is a non-renewable resource. In my country, Yunnan, Guizhou, Sichuan, and Hubei provinces are rich in phosphate rock resource reserves. However, with the rapid increase in demand for phosphate rock and the development of the phosphate fertilizer industry, especially high-concentration The development of compound fert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00
Inventor 刘三军阮德荣覃文庆姚文明邹松
Owner CENT SOUTH UNIV
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