Micron-scale low hydroxyl OH<-> crystal powder production process method
A production process and technology of crystal powder, applied in the direction of silicon dioxide, silicon oxide, etc., can solve the problems of high impurity content of high-purity crystal powder, inability to use crystal ceramics and making special high-temperature resistant devices, etc., to achieve low impurity content and particle size. Uniform, simple process effect
Active Publication Date: 2013-09-25
JIANGSU SHENGDA QUARTZ PROD CO LTD
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Abstract
The present invention discloses a micron-scale low hydroxyl OH<-> crystal powder production process method, which comprises the following steps: (1) selecting a high purity crystal raw material and treat; (2) crushing the high purity crystal raw material; (3) carrying out secondary crushing on the crushed crystal powder; (4) carrying out cavitation vibration on the obtained crystal powder by using an ultrasonic vibration machine; (5) carrying out acid washing 4 on the obtained crystal powder; (6) carrying out high temperature baking on the obtained crystal powder; (7) carrying out secondary acoustic cavitation on the baked crystal powder; (8) carrying out magnetic separation impurity removal on the obtained crystal powder; and (9) carrying out high temperature hydroxyl removal and impurity removal purification on the impurity-removed crystal powder. The method is simple. In addition, low hydroxyl OH<-> content is less than or equal to 5 pm, and crystal powder purity is more than or equal to 99.99999%.
Application Domain
Silica
Technology Topic
Acid washingMicron scale +8
Examples
- Experimental program(1)
Example Embodiment
PUM


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