Purifying process for quartz raw materials for ultra-clear glass

A technology of ultra-clear glass and quartz, applied in the direction of silicon dioxide, silicon oxide, etc., can solve the bottleneck of large-scale use of ultra-clear glass, increase in production and demand, etc., to solve the risk of mining and purchasing raw materials, The effect of saving costs and saving enterprise test costs

Inactive Publication Date: 2015-10-21
DALIAN POLYTECHNIC UNIVERSITY
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Problems solved by technology

[0003] Based on the excellent performance of ultra-clear glass and its irreplaceable position in green energy, high-end cars, high-end buildings, high-end gardening and high-end furniture, the future production and demand will increase significantly, which will make the raw materials for ultra-clear glass Bottlenecks in large-scale use

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  • Purifying process for quartz raw materials for ultra-clear glass
  • Purifying process for quartz raw materials for ultra-clear glass

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Embodiment 1

[0027] The quartz raw material of this embodiment is a certain place in Lingyuan, and its chemical composition is as follows: SiO 2 Content 98.500%, Fe content 0.2661%. The specific purification process is as follows:

[0028] A. Coarse, medium and fine crushing of quartz raw materials from a place in Lingyuan to meet the particle size requirements of quartz raw materials for ultra-clear glass:

[0029]

[0030] B. The crushed quartz material is magnetically separated by a high-intensity magnetic field with a strong NdFeB magnetic rod, and the magnetic field strength is 3350GS.

[0031] C. The quartz material after magnetic separation is put into a crucible and calcined in a muffle furnace at a heating rate of 5°C / min, and kept at 470°C for 1h.

[0032] D. Put the calcined quartz material into the mixed acid pickling solution for acid leaching. Take 50g of calcined material and put it into a container filled with inorganic acid pickling solution. The volume (ml) ratio of...

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Abstract

The invention discloses a purifying process for quartz raw materials for ultra-clear glass. The purifying process sequentially comprises the following procedures of 1 breaking, 2 magnetic separation, 3 calcining, 4 mixed acid leaching and 5 washing and drying, wherein in the breaking step, the quartz raw materials are crushed into particles with the grain size of 0.1-0.8 mm through a crusher; in the magnetic separation step, magnetic separation is carried out on the crushed quartz sand materials through a high-intensity magnetic field; in the calcining step, the crushed quartz sand materials after the magnetic separation are calcined in a muffle furnace; in the mixed acid leaching step, the calcined crushed quartz sand materials are leached in an inorganic mixed acid solution; in the washing and drying step, the leached quartz sand materials are washed through deionized water, and then dehydration and drying are carried out. The purifying process is remarkable in purification effect, easy, safe and fast, and suitable for industrial production.

Description

technical field [0001] The invention relates to a purification process of natural mineral raw materials, in particular to a purification process of quartz raw materials for ultra-white glass, and belongs to the technical field of inorganic materials. Background technique [0002] As a new material, ultra-clear glass has broad application prospects in solar photovoltaic industry, high-end cars, high-end buildings, high-end horticultural buildings and high-end furniture due to its high light transmittance, crystal clear and elegant characteristics. In recent years, the country encourages and supports green and environmentally friendly new energy sources, so the solar photovoltaic industry has risen rapidly. Ultra-clear glass is used as solar cell packaging glass and electrode glass substrate, because the iron content is only 1 / 10 of ordinary glass, or even higher. Low, but with high light transmittance and high photoelectric conversion efficiency, it plays a great role in phot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12
Inventor 姜妍彦谢兵胡志强
Owner DALIAN POLYTECHNIC UNIVERSITY
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