Beneficiation method for extracting feldspar and quartz from granite

A granite and feldspar technology, applied in flotation, solid separation, etc., can solve the problem that granite is difficult to be effectively used, and achieve the effects of reducing depletion, reducing costs, and protecting the environment

Inactive Publication Date: 2012-10-17
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Granite is a kind of igneous rock, which is widely distributed, accounting for about 9% of my country's land area. It is a crystalline rock mass formed by the gradual cooling and condensation of magma in the depths of the earth

Method used

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  • Beneficiation method for extracting feldspar and quartz from granite
  • Beneficiation method for extracting feldspar and quartz from granite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Implementation steps according to figure 1 The process shown is carried out under the following conditions:

[0016] Magnetic separation: medium magnetic field strength: 0.3T, high gradient magnetic separation field strength: 1.0T

[0017] Pretreatment: scrubbing concentration: 50%, scrubbing time: 15min

[0018] Scrub medium: H 2 SO 4 : 2.0kg / t, HF: 1.0kg / t

[0019] Flotation feldspar: ammonium salt collector: 4.0kg / t, PH: 2.5

[0020] Quartz fine flotation: amine salt and petroleum sulfonate mixed anion and cation collector: 4.1kg / t, PH: 2.5

[0021] Example results Table 1

[0022]

[0023] The results show that the chemical indexes of the feldspar concentrate and quartz concentrate treated by the above process meet the requirements of the ceramic and glass industries, and have broad application prospects.

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PUM

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Abstract

The invention discloses a beneficiation method for extracting feldspar and quartz from granite, comprising the following steps of: 1. carrying out physical beneficiation process treatment of crushing, sieving, grading, carrying out medium magnetic separation and carrying out strong magnetic separation on granite ores to remove almost parts of ferromagnetic minerals and obtain a primary product with qualified granularity combination; 2. carrying out pre-treatment of wiping and removing (medicine) water on the product; and then, carrying out size mixing and flotation selecting to realize the separation of the feldspar and the quartz; and 3. precisely selecting the quartz: utilizing a precise (floatation) selection process to reduce the content of Fe2O3 in the quartz. According to the beneficiation method for extracting the feldspar and the quartz from the granite, the feldspar and the quartz with high quality can be effectively separated from the granite, and a replaceable resource is provided for the feldspar and quartz raw materials needed by glass and ceramic industries; and therefore, the environment is protected, the cost is reduced and the dangers that resources are increasingly exhausted are reduced.

Description

technical field [0001] The invention relates to non-metallic ore dressing and separation technology, discloses a dressing method for extracting feldspar and quartz from granite, develops a new utilization way for granite minerals, and is especially suitable for the comprehensive utilization of crushed ore in the granite slab industry. Background technique [0002] With the rapid development of ceramics, glass and other building materials industries, a large amount of high-quality feldspar and quartz resources are needed to provide support. According to incomplete statistics, the annual demand of the above two industries alone is more than 100 million tons. The mines that provide raw material guarantee for the above industries are facing the crisis of resource depletion. Therefore, finding alternative resources, protecting the environment and reducing costs are important contents for the sustainable development of the building materials industry. [0003] Granite is a kind of...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03B1/04
Inventor 彭寿吴建新茆令文段树桐杨明星
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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