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
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[0025] A micron-sized low hydroxyl OH - The production process method of crystal powder, implementation steps are as follows:
[0026] 1) Select high-purity crystal raw materials, pickling, baking, crushing, screening, acid immersion, neutral magnetism, flotation impurity removal, high magnetism, drying and other processing procedures in sequence;
[0027] 2) The high-purity crystal raw material is crushed with a manganese steel double-roll machine, and the crushed particles are 100-300 mesh;
[0028] 3) 300-mesh crystal powder is pulverized with a quartz double-roller, and the pulverized particles are 500-800 mesh;
[0029] 4) Perform 20-50 kHz high-frequency primary cavitation vibration with 500-800 mesh crystal powder with an ultrasonic vibrator to obtain 1000-2500 mesh;
[0030] 5) Pickling 1000-2500 mesh crystal powder with sulfuric acid and hydrofluoric acid for 48 hours;
[0031] 6) Baking the 48-hour acid-washed crystal powder in a high-temperature kiln at 850°C;
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