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Mineral processing technology by utilizing grade difference of potassium feldspar

A kind of potassium feldspar and differentiated technology, which is applied in the field of separation, purification and utilization of feldspar ore, can solve the problems of low resource utilization rate and inability to fully develop the potential value of resources, achieve high comprehensive resource utilization rate, increase mineral additional Value, the effect of efficient use

Inactive Publication Date: 2014-08-20
ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the defects of low resource utilization rate and inability to give full play to the potential value of resources existing in the existing potassium feldspar processing technology, the present invention proposes a mineral processing process utilizing potassium feldspar grade differentiation, including the following steps:

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  • Mineral processing technology by utilizing grade difference of potassium feldspar

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example 1

[0030] Example 1 Low-grade potassium feldspar beneficiation process

[0031] The process flow is: raw ore - separation of rich and poor - low grade ore - crushing - ore washing - grinding and classification - desliming - magnetic separation deep iron removal.

[0032] After the raw ore is sorted, it is coarsely crushed by the jaw crusher and finely crushed by the cone crusher, and the low-grade potassium feldspar ore (the composition of the raw ore is K 2 O: 5.76%, Na 2 O: 2.4%, Fe 2 o 3 : 0.8%, the raw ore whiteness is 28 degrees) as the raw material, the ore feed rate is 98 tons / day, the outlet concentration of the rod mill is 40-60%, the grinding fineness below 200 mesh accounts for 30-40%, the spiral classifier The outlet concentration is 40-50%, and the grading fineness below 200 mesh accounts for 30-40%. Desliming is carried out under the combination of cyclone and spiral chute, and after weak magnetic field (5000GS) and strong magnetic field (10000~13000GS), the com...

example 2

[0033] Example 2 Medium grade potassium feldspar beneficiation process

[0034] The process flow is: raw ore - separation of rich and poor - middle grade ore - crushing - ore washing - grinding and classification - desliming - flotation demica deferrification titanium - secondary flotation dequartz - magnetic separation deep deironing.

[0035] After the raw ore is sorted, medium-grade potassium feldspar ore (raw ore composition is K 2 O: 8.1%, Na 2 O: 2.5%, Fe 2 o 3: 0.56%, the raw ore whiteness is 32 degrees), coarsely crushed by jaw crusher and finely crushed by cone crusher, the feed rate of rod mill is 100 tons / day, the outlet concentration is 40-60%, and the ore is ground below 200 mesh The fineness accounts for 30-40%. After passing through the spiral classifier, the outlet concentration of the classifier is 40-50%, and the classification fineness below 200 mesh accounts for 20-30%. Under the action of cyclone and spiral chute for desliming, the deslimed ore account...

example 3

[0036] Example 3 High-grade potassium feldspar beneficiation process

[0037] The process flow is: raw ore - separation of rich and poor - high grade ore - crushing - ore washing - grinding and classification - desliming - magnetic separation deep iron removal - wet ultrafine grinding - screening.

[0038] After raw ore sorting, high-grade potassium feldspar ore (raw ore composition is K 2 O: 11.2%, Na 2 O: 2.3%, Fe 2 o 3 : 0.45%, the whiteness of raw ore is 25 degrees), after being coarsely crushed by the jaw crusher and finely crushed by the cone crusher, it enters the rod mill. , The grinding fineness below 200 mesh accounts for 30-40%, after passing through the spiral classifier, the outlet concentration of the classifier is 30-40%, and the classification fineness below 200 mesh accounts for 30-40%. After desliming by cyclone and spiral chute, and then desliming by weak magnetic field and strong magnetic field, the composition of potassium feldspar concentrate obtained...

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Abstract

The invention relates to a mineral processing technology by utilizing the grade difference of potassium feldspar. The mineral processing technology comprises the following steps that (1), potassium feldspar raw ore is mined and sorted in a separated mode according to the three classes of low-grade potassium feldspar ore, medium-grade potassium feldspar ore and high-grade potassium feldspar ore; (2), the mineral processing processes of crushing, washing, grinding for grading, desliming, and magnetic separation for deep iron removal are carried out on the low-grade potassium feldspar ore; (3), the mineral processing processes of crushing, washing, grinding for grading, desliming, flotation for mica removal and iron removal, flotation for separating feldspar from quartz, and magnetic separation for deep iron removal are carried out on the medium-grade potassium feldspar ore; (4), the mineral processing processes of crushing, washing, grinding for grading, desliming, magnetic separation for deep iron removal, wet superfine grinding and screening are carried out on the high-grade potassium feldspar ore. The different mineral processing technical schemes are adopted for the potassium feldspar ore of different grades, and the purposes of being free of environmental pollution, simplifying the production processes and efficiently developing and utilizing resources are achieved.

Description

technical field [0001] The invention relates to the separation, purification and utilization of feldspar ore, in particular to an ore dressing process utilizing grade differentiation of potassium feldspar. Background technique [0002] Potassium feldspar is a potassium-containing framework silicate. Because of its long melting interval and good chemical stability, it is widely used in industrial fields such as glass, ceramics, chemicals, abrasives, glass fibers, and welding electrodes. Raw materials: Potassium feldspar raw materials have accounted for more than 50% of the entire raw material formula of ceramic products such as ceramic glazes, polished tiles, and sanitary porcelain. The quality of potassium feldspar raw materials directly affects the quality grade of ceramic and glass products. [0003] Although there are large reserves of potassium feldspar in my country, there are not many high-quality potassium feldspar resources. The raw ore reserves of the first grade or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
Inventor 冯安生胡宏杰张成强郝小非李珍王洪亮程俊杰
Owner ZHENGZHOU MINERALS COMPOSITIVE UTILIZATION RES INST CHINESE GEOLOGICAL ACAD
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