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Treatment method of silico-calcareous collophanite

A treatment method and collophosite technology, which is applied in the field of waste resource utilization, can solve the problems of difficult processing of middle and low-grade collophosite and low resource utilization rate, and achieve the goals of reducing waste, improving utilization value, and convenient operation Effect

Active Publication Date: 2020-07-17
WUHAN INSTITUTE OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0010] In view of this, the present invention aims to propose a treatment method for siliceous-calcareous collophanite, so as to solve the problem that the existing medium and low-grade collophosite is difficult to handle, resulting in The problem of low resource utilization

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  • Treatment method of silico-calcareous collophanite

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Embodiment 1

[0039] to combine figure 1 As shown, the processing method of the siliceous calcareous collophosite of the present embodiment specifically comprises the following steps:

[0040] 1) Take 500g of silico-calcareous colloidal phosphate and place it in a flotation machine, add 1160ml of water, stir well, and configure it into a slurry;

[0041] 2) Add 5kg / t of sodium carbonate, 2.3kg / t of sodium silicate, and 1.3kg / t of sulfo fatty acid collector to the pulp in sequence. After the addition is complete, stir for 6 minutes, then ventilate and scrape for 7 minutes to carry out positive Flotation, and subsequently, the concentrate product and tailings product are drained to obtain flotation concentrate and flotation tailings;

[0042] 3) Place the flotation concentrate obtained in step 2) in a 1000ml three-necked flask, heat it to 70°C in an oil bath, slowly add 60ml of 35% phosphoric acid to mix, and after 2.5h of magnesium removal reaction, suction filter to obtain phosphorus concent...

Embodiment 2

[0049] combine figure 1 As shown, the processing method of the siliceous calcareous collophosite of the present embodiment specifically comprises the following steps:

[0050] 1) Take 500g of silicon-calcium colloidal phosphate and place it in the flotation machine, add 1015ml of water, stir well, and configure it into a slurry;

[0051] 2) Add 8.2kg / t of sodium carbonate, 1.5kg / t of sodium silicate, and 2.2kg / t of sulfo fatty acid collector to the pulp in turn. After the addition is complete, stir for 5 minutes, then ventilate and scrape for 9 minutes to carry out Positive flotation, and subsequently, the concentrate product and tailings product are drained to obtain flotation concentrate and flotation tailings;

[0052] 3) Place the flotation concentrate obtained in step 2) in a 1000ml three-necked flask, heat it in an oil bath to 80°C, slowly add 50ml of 42% phosphoric acid to mix, and after 3 hours of demagnesification reaction, suction filter to obtain phosphorous concen...

Embodiment 3

[0059] combine figure 1 As shown, the processing method of the siliceous calcareous collophosite of the present embodiment specifically comprises the following steps:

[0060] 1) Take 500g of silico-calcareous colloidal phosphate and place it in a flotation machine, add 980ml of water, stir well, and configure it into a slurry;

[0061] 2) Add 6.5kg / t of sodium carbonate, 2.5kg / t of sodium silicate, and 3.2kg / t of sulfo fatty acid collector to the pulp in turn. After the addition is complete, stir for 8 minutes, then blow and blow for 10 minutes to carry out After positive flotation, the concentrate product and tailings product are drained to obtain flotation concentrate and flotation tailings.

[0062] 3) Place the flotation concentrate obtained in step 2) in a 1000ml three-necked flask, heat it to 85°C in an oil bath, slowly add 55ml of 41% phosphoric acid to mix, and after 3.5h of magnesium removal reaction, suction filter to obtain phosphorus concentrate and Magnesium mo...

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Abstract

The invention provides a treatment method of silico-calcareous collophanite, which comprises the following steps: carrying out direct flotation on silico-calcareous collophanite to obtain flotation concentrate and flotation tailings, carrying out magnesium removal treatment on the flotation concentrate to obtain phosphate concentrate, carrying out calcium precipitation treatment on a magnesium removal mother liquor obtained by magnesium removal treatment to obtain gypsum whiskers and a phosphoric acid solution, carrying out acidolysis on flotation tailings, carrying out alkali fusion-water leaching treatment on silicon slag obtained through acidolysis so that water glass is obtained, and carrying out calcium precipitation treatment on an acidolysis liquid obtained through acidolysis so that gypsum whiskers are obtained. Phosphorus concentrate capable of being used for wet-process phosphoric acid is obtained through flotation-chemical method magnesium removal, sodium silicate is obtained through alkali fusion-water leaching to achieve recycling of silicon in tailings, and acidolysis liquid is comprehensively utilized to produce gypsum whiskers and calcium magnesium phosphate fertilizer. According to the method, a new utilization way of the silico-calcareous collophanite is opened up, and the utilization value of the collophanite is improved.

Description

technical field [0001] The invention relates to the technical field of resource utilization of waste, in particular to a treatment method for siliceous-calcium colloidal phosphate rock. Background technique [0002] my country is rich in phosphate rock resources, and its reserves rank second in the world. However, there are few rich ore and many lean ore. Most of them are medium and low-grade calcareous collophosphine. Mineral symbiosis is tight, and the embedded particle size is fine, which belongs to refractory phosphate rock. Therefore, the development and utilization of the low- and medium-grade gliphosphite has become an urgent problem to be solved to ensure the sustainable development of resources. [0003] Until the beginning of the 19th century, manual selection was always the main method of mineral processing. Later, with the increase of labor costs and the improvement of other mineral processing methods, manual selection declined rapidly. At present, there are man...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/32C05B13/02C30B29/62C30B29/46C30B7/14B03D1/02B03D1/018B03D101/02B03D103/06
CPCC01B33/32C05B13/02C30B29/62C30B29/46C30B7/14B03D1/02B03D1/018B03D2203/06B03D2201/02
Inventor 张华丽潘益潘志权
Owner WUHAN INSTITUTE OF TECHNOLOGY
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