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Apatite ore beneficiation process

A technology of apatite ore and technology, applied in the direction of flotation, solid separation, chemical instruments and methods, etc., can solve the problems of difficulty in beneficiation of phosphorous concentrate, high iron content and MgO content, and achieve reduction of iron and magnesium oxide content, The effect of increasing the content and improving the quality

Active Publication Date: 2020-09-01
MCC NORTH (DALIAN) ENG TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Through the above analysis, it can be known that most of the existing apatite ores in my country are P 2 o 5 Low, high iron content and MgO content, which brings great difficulty to the beneficiation of qualified quality phosphorus concentrate

Method used

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Embodiment Construction

[0019] In order to further illustrate the technical means and effects of the present invention to solve the technical problems, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the scope of protection required by the present invention.

[0020] Such as figure 1 The flow chart of an optional embodiment of the apatite ore beneficiation process includes three stages of crushing process S1001, the first stage of ball milling S1002 and fine screen S1003 closed circuit, coarse mica extraction flotation S1004, the second stage of ball milling S1006 and cyclone S1005 Closed circuit, weak magnetic separation S1007, desliming cyclone S1008, fine mica extraction flotation S1009 and phosphorus flotation S1100;

[0021] P in raw ore 2 o 5 The content of iron is 9.5%, the grade of Fe is 11%, and the content of MgO is 3.2%. The main useful mineral is apatite, and the main ...

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Abstract

The invention belongs to the technical field of mineral separation, and provides an apatite separation technology. The technology comprises a three-stage crushing process, a first ball milling and fine screening circuit closing stage, rough mica removing and flotation, a second ball milling and cyclone circuit closing stage, weak magnetic separating, mud removing of a cyclone, fine mica removing and flotation and phosphorus flotation. According to the technology, apatite containing Fe and Mg is treated; Fe is removed by magnetic separating; magnesium containing mica is removed by rough mica separating and flotation and fine mica removing and flotation, so that Fe and Mg content in the ore can be effectively decreased; and the quality of the apatite concentrate is improved; and after beingapatite is treated by the technology, high-quality apatite can be obtained.

Description

technical field [0001] The invention belongs to the field of beneficiation technology, in particular to an apatite ore beneficiation process. Background technique [0002] my country is the country with the largest demand for phosphate fertilizers, and phosphate fertilizers and phosphorus chemicals occupy an important position in my country's agricultural and chemical industries. Apatite, as one of the phosphorus-containing minerals, occupies a major position in the source of phosphorus. [0003] At present, the phosphorus-rich mines of phosphorus minerals in my country are decreasing day by day, and most of the remaining ones are poor phosphorus mines. Most of the apatite mines in my country contain P 2 o 5 The content of iron is less than 10%. Iron-containing minerals such as iron silicate, iron carbonate, and magnetite have a high content, and the iron content in raw ore can generally reach more than 10%. MgO, the content of MgO in some mines is as high as 3-5%. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03B9/00B03D1/008B03D1/002B03D101/02B03D101/04B03D101/06
CPCB03B7/00B03B9/00B03D1/002B03D1/008B03D2201/02B03D2201/04B03D2201/06
Inventor 李国洲段云峰邢伟
Owner MCC NORTH (DALIAN) ENG TECH CO LTD
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