A kind of method utilizing quartz sand dust to prepare sodium fluorosilicate

A technology of sodium fluorosilicate and quartz sand is applied in the field of preparing sodium fluorosilicate, which can solve the problems of secondary pollution of dust, and achieve the effects of improving work efficiency, large specific surface area, and avoiding floating
CN107879345BActive Publication Date: 2020-09-04XINYI JINGRUN QUARTZ MATERIAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XINYI JINGRUN QUARTZ MATERIAL
Publication Date
2020-09-04

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Abstract

The invention discloses a method for preparing sodium fluorosilicate by utilizing quartz sand dust. The method mainly comprises the steps of collecting the quartz sand dust, generating a solution containing fluosilicic acid, covering the solution with a composite film layer, and preparing the sodium fluorosilicate. According to the method disclosed by the invention, the bottom of a quartz sand dust collector is treated with chitosan and silica gel microspheres, the surface of the solution containing the fluosilicic acid is covered with the composite film layer, and the above measures all improve the adsorption capacity and adsorption efficiency of the quartz sand dust; and the method utilizes the quartz sand dust and fluorine-containing waste water to prepare the sodium fluorosilicate, themethod has simple operation, greenness and environmental protection, avoids the secondary pollution of the quartz sand dust, and obtains chemical products with high additional value.
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Description

Technical field

[0001] The invention relates to the field of quartz sand dust recovery, in particular to a method for preparing sodium fluorosilicate by using quartz sand dust. Background technique

[0002] Quartz sand is a hard, wear-resistant, chemically stable silicate mineral, the main chemical component is SiO 2 It plays an important role in traditional industries such as foundry, metallurgy, rubber, abrasives, ceramics, construction, and high-tech fields such as aerospace, IT, communications, and solar cells. With the development of society, the demand for quartz sand has increased. There are many quartz sand processing and manufacturing enterprises. However, from the mining of quartz ore to the fine processing of quartz sand, quartz sand dust will appear in every step. Quartz sand dust not only pollutes the working environment and the surrounding environment, but also meets dust workers and nearby people. Life and health pose a huge threat. The content of free silica in qu...

Claims

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