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A kind of potassium feldspar iron removal process method

A process method and potassium feldspar technology are applied in the field of comprehensive utilization of mineral resources, which can solve problems such as poor iron removal effect and high sulfuric acid consumption, and achieve the effects of high sulfuric acid utilization rate, improved reaction degree, and improved removal degree.

Active Publication Date: 2020-06-30
贺州市骏鑫矿产品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing iron removal technologies for potassium feldspar include flotation, magnetic separation, acid leaching, etc. Among them, acid leaching usually uses sulfuric acid as the medium, which has the problem of high sulfuric acid consumption and poor iron removal effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the present embodiment, a potassium feldspar iron removal process comprises the following steps:

[0022] (1) Ore washing treatment: After the raw potassium feldspar ore is crushed once to a particle size of 5 cm, the ore washing treatment is carried out through a spiral chute, and the sludge is removed and then dehydrated;

[0023] (2) secondary crushing treatment: the above potassium feldspar is crushed to a particle size of less than 1cm by a crusher;

[0024] (3) Ball milling: put the potassium feldspar after the secondary crushing into a ball mill, and finely grind it to a particle size of 80 mesh to obtain potassium feldspar particles;

[0025] (4) High-pressure treatment: mix the above-mentioned potassium feldspar particles and water at a volume ratio of 1:1 and put them into a high-pressure reactor. First, the high-pressure reactor is evacuated to a vacuum of -0.04MPa, and then filled with a pure 99% or more of carbon dioxide until the pressure of the high-p...

Embodiment 2

[0029] In the present embodiment, a potassium feldspar iron removal process comprises the following steps:

[0030] (1) Ore washing treatment: After the potassium feldspar raw ore is crushed once to a particle size of 6cm, the ore washing treatment is carried out through a spiral chute, and the sludge is removed and then dehydrated;

[0031] (2) secondary crushing treatment: the above potassium feldspar is crushed to a particle size of less than 1cm by a crusher;

[0032] (3) Ball milling treatment: put the potassium feldspar after the secondary crushing into a ball mill, and finely grind it to a particle size of 100 mesh to obtain potassium feldspar particles;

[0033] (4) High-pressure treatment: the above-mentioned potassium feldspar particles and water are mixed in a volume ratio of 1:1.5 and then put into a high-pressure reactor. The high-pressure reactor is first evacuated to a vacuum degree of -0.045MPa, and then filled with 99% or more of carbon dioxide until the pres...

Embodiment 3

[0037] In the present embodiment, a potassium feldspar iron removal process comprises the following steps:

[0038] (1) Ore washing treatment: After the potassium feldspar raw ore is crushed once to a particle size of 8cm, the ore washing treatment is carried out through a spiral chute, and the sludge is removed and then dehydrated;

[0039] (2) secondary crushing treatment: the above potassium feldspar is crushed to a particle size of less than 1cm by a crusher;

[0040] (3) Ball milling treatment: put the potassium feldspar after the secondary crushing into a ball mill, and finely grind it to a particle size of 150 mesh to obtain potassium feldspar particles;

[0041] (4) High-pressure treatment: mix the above-mentioned potassium feldspar particles and water at a volume ratio of 1:2 and put them into a high-pressure reactor. First, the high-pressure reactor is evacuated to a vacuum degree of -0.05MPa, and then filled with 99% or more of carbon dioxide until the pressure of ...

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Abstract

The invention belongs to the technical field of comprehensive utilization of mineral resources and particularly discloses a potassium feldspar deironing technique, comprising the steps of (1) washingthe mineral, to be specific, washing mud from the raw potassium feldspar, and removing water; (2) crushing secondarily; (3) ball milling, to be specific, ball milling until particle size of 80-150 mesh; (4) treating under high pressure, to be specific, introducing carbon dioxide to form high pressure to treat potassium feldspar particles; (5) treating with sulfuric acid, to be specific, mixing thepotassium feldspar particles, sulfuric acid solution and carbon dioxide under vacuum assistance; (6) drying. The potassium feldspar deironing technique helps effectively remove iron in the potassiumfeldspar, the sulfuric acid is utilized more efficiently, and acid content of wastewater is lowered.

Description

【Technical field】 [0001] The invention relates to the technical field of comprehensive utilization of mineral resources, in particular to a process for removing iron from potassium feldspar. 【Background technique】 [0002] Feldspar is an important industrial mineral, mainly used as a raw material for the production of ceramics and glass. The consumption of feldspar in the glass industry accounts for about 50-60% of the total consumption of feldspar, and the consumption of feldspar in the ceramic industry accounts for about 30% of the total consumption of feldspar. In addition, potassium feldspar is also used in chemical industry, grinding Abrasive, glass fiber, welding rod production and other industries. In the production of white glass, the iron in the raw material will have a bad influence on the light transmittance and color of the glass; in the production of ceramics, iron is easy to cause black spots, melting scars and melting holes on the surface of the product. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/26
CPCC01B33/26
Inventor 邓培有
Owner 贺州市骏鑫矿产品有限责任公司
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