Acid leaching device for silicon materials

A technology of acid leaching and silicon material, which is applied in the production field of silicon ore purification, can solve the problems of inability to stir mineral materials, poor acid leaching effect, and no stirring mechanism, etc., to improve acid leaching effect, improve mixing efficiency, and improve acid resistance corrosive effect

Inactive Publication Date: 2015-04-15
成都兴能新材料股份有限公司
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Problems solved by technology

The current acid leaching device has the following disadvantages: the gasified acid is not treated, which may easily cause environmental pollution; there is no stirring mechanism in the acid leaching device, and the ore cannot be stirred, resulting in poor acid leaching effect; the acid leaching device can only For pickling operations, and the washing after pickling requires additional equipment

Method used

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  • Acid leaching device for silicon materials

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 The acid leaching device for silicon material shown includes an acid leaching barrel body 1, and the bottom of the acid leaching barrel body 1 is provided with a pure water inlet 4; an upper end of one side of the acid leaching barrel body 1 is provided with an overflow port 5; the lower end of one side of the acid leaching barrel body 1 is provided with an acid discharge pipe 8; the top of the acid leaching barrel body 1 is provided with a feeding port 6, and the top of the charging port 6 is provided with a detachable acid gas filter layer 7, The acid gas filter layer 7 is formed by successively laying a glass fiber sewing thread base cloth layer and a glass fiber layer impregnated with PTFE; the top of the acid leaching bucket body 1 is provided with a motor 2, and the motor 2 is connected with a screw shap...

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Abstract

The invention provides an acid leaching device for silicon materials, and relates to the production field of silicon ore purification. The acid leaching device for silicon materials, provided by the invention, adopts the scheme that a spiral stirring shaft is arranged, so that the stirring effect while acid leaching is excellent, and the acid leaching effect is improved; detachable acid gas filtering layers are arranged at the tops of material inlets to process acid gas generated during acid leaching, so that the harm of the acid gas to human body and the environment is reduced. The device provided by the invention can achieve the dual functions of acid leaching and silicon ore washing after acid leaching, so that no additional washing device is needed.

Description

technical field [0001] The invention relates to the production field of silicon ore purification, in particular to an acid leaching device for silicon material. Background technique [0002] With the advancement of science and technology, high-tech industries such as optical power supply, electronics industry, optical communication, SiO2 thin film materials, large-scale and ultra-large-scale integrated circuits, lasers, aerospace, military industry and other high-tech industries are developing rapidly, and the demand for high-grade quartz raw materials is very high. big. However, due to the high quality requirements of these special quartz raw materials, the required content is usually greater than 99.9%, or even 99.99%, while the allowable impurity content is very low. Only high-grade natural primary and secondary crystals can meet the requirements. Natural crystal resources are becoming increasingly depleted, especially high-grade natural crystal resources are scarce, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/12
Inventor 王维利范未峰
Owner 成都兴能新材料股份有限公司
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