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Method for selecting potassium feldspars in potassium-bearing tailings

A technology of tailings and tailings sand, which is applied in the beneficiation of tailings and potassium-containing tailings in the field of selection and recovery of potassium feldspar, so as to improve the grade of concentrate, optimize the process flow, and reduce the cost of beneficiation

Active Publication Date: 2013-07-10
厦门中科金源新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the flotation separation method for solving the above complex minerals from the process and technology has not been reported yet.

Method used

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  • Method for selecting potassium feldspars in potassium-bearing tailings
  • Method for selecting potassium feldspars in potassium-bearing tailings
  • Method for selecting potassium feldspars in potassium-bearing tailings

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Embodiment 1

[0039] In 2010, comprehensive mineral processing was carried out for the tailings of the Chehugou copper-molybdenum mine in the Chifeng area of ​​Inner Mongolia.

[0040] After testing the tailings sample K 2 O grade is 5.10%, Na 2 O grade is 2.79%.

[0041] Technological mineralogy has found that in addition to feldspar and quartzite, there are a small amount of sericite, chlorite and carbonate in the tailings sample, as well as trace amounts of chalcopyrite, pyrite, rutile and magnetite, Hematite, molybdenite and other metal minerals.

[0042] The sieve analysis results of the tailings sand showed that the particle size of the tailings sand was relatively coarse, and the content of +0.1mm was 86.9%; the content of -0.074mm was 9.0%.

[0043] Specific beneficiation methods, such as figure 1 shown, including the following steps:

[0044] 1) Finely grind the tailings sand of the Chehugou Copper-Molybdenum Mine to a fineness of -0.074mm and a content of 55w / w%;

[0045] 2)...

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Abstract

The invention provides a method for selecting potassium feldspars from non-ferrous metallurgical mine potassium-bearing tailings. The method comprises the steps of ore grinding, desliming, flotation and the like; the flotation step further includes the steps as follows: two times of rougher flotation and two times of selection; and potassium feldspar concentrate, which can meet the use standards of industries such as ceramics, coating and the like and can serve as commodities to sale, is finally recovered from low-potassium-content tailings, which cannot serve as commodities. Through the adoption of the method, the non-ferrous metallurgical mine potassium-bearing tailings are effectively and synthetically utilized, and the mill tailings are turned from the harm into a benefit, so that state development policies of energy conservation and emission reduction as well as environmental protection and circular economy are met and the economic benefits of enterprises are improved.

Description

technical field [0001] The invention relates to a mineral processing method, in particular to a mineral processing method for tailings, and more specifically to a method for concentration and recovery of potassium-containing tailings in potassium feldspar. Background technique [0002] my country is rich in mineral resources and has great potential, and the mining industry has developed into a pillar industry of my country's economy. However, a large amount of tailings are produced in the process of ore mining. For example, the ore grade of general non-ferrous metals is about 1%, which means that 1 ton of ore will produce 99 tons of tailings. The tailings produced in the mining of rare and precious metals The ratio is even more. [0003] Potassium feldspar is an important non-metallic product, widely used in agriculture, chemical industry, machinery and silicate industry. In some non-ferrous metal mines, it is often accompanied by better quality feldspar minerals. [0004...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00B03D1/08B03B1/00
Inventor 孟祥瑞王克明孟雷
Owner 厦门中科金源新能源科技有限公司
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