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What is spherical Quartz Powder?
After being purified from quartz stone, sphere quartz powder is pulverized and ultrafinely pulverized. The powder then goes through a high temperature field so that its phase form, crystal form and shape instantly change, going from solid state to liquid state, then to solid state, then to solid state. Finally, it will go from crystalline state back to crystalline. Amorphous powder is made from irregularly angular particle into regular spherical particles.
The main preparation method for spherical powder quartz is
1. Flame melting is used primarily to mass produce spheroidized quartz dust. The heating device must have a stable temperature, adjustable temperature ranges, and there is no secondary pollution to quartz powder. This technology is key. The ball-forming principle is that the high-temperature fire spray gun produces a high temperature flame between 1600 and 2000. The powder particles become molten after it has entered the high-temperature flame area. The action of surface tension means that objects tend to be stable. Spherical is the best state for forming a ball.
2. The local thermodynamic equilibrium (or thermal plasma) is another name for this plasma. It has the main characteristic that the plasma’s local electron temperature, ion temperature, and gas temperature are almost identical. The thermal plasmas are arc plasma, high frequency and induction plasma.
The high-frequency plasmafusion method is used for the preparation of spherical quartz. This method has a high temperature range, stable control and high output. Also, it can achieve a high rate of spheroidization, making it more practical. The principle and procedure are very similar with the flame melting method. This primarily changes the high temperature heat source to a plasma generator.
Compressed air is used as the working gas. The volume of the working gases is 10m3/h. The high-frequency generator generates heat by generating high-temperature gas at 4000-7000. The silica is carried from the top of the plasma reactor furnace to the arc region by the feeder. After melting and gasifying, the powder is then transported through the feeder. The powder is quenched using a special quencher and then collected by gravity and bag dust (nanoscale), within 1s-2s.
3. Chemical synthesis
To obtain silica sol, heat the silica emulsion with ammonia or ammonium bicarbonate. The gel is then treated with acid to make hydrated sphericalsilica. This product has a low uranium level, which is a characteristic. However, it is also easy to agglomerate.
Tech Co., Ltd. is a professional spherical powder supplier. It has over 12 years’ experience in chemical products development and research. We accept credit cards, T/T and Paypal payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.
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