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What is spherical Quartz Powder?
After being purified from quartz stone, sphere quartz powder is pulverized and ultrafinely ground. The powder then goes through a high temperature field so its phase state, crystal form, shape, and crystal form change instantaneously. Amorphous powder is made from irregularly angular pieces into regular spherical grains.
The main preparation method for spherical powder quartz is
1. Flame melting is used primarily to mass produce spheroidized quartz dust. This technology has a key feature: the heating device must have a stable temperature field, easy temperature adjustment, and no secondary contamination to the quartz powder. The ball-forming principle is that the high-temperature fire spray gun produces a flame with a temperature range of 1600-2500. When the powder is placed in the high-temperature flame area, its angular surface absorbs heat. The heat is then transferred to the powder’s interior, where it is completely molten. 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. The main feature of thermal plasma is the fact that the plasma’s electron temperature, ion temperature and gas temperature are all almost identical. The thermal plasmas are arc plasma, high frequency and induction plasma.
High-frequency plasmafusion is used for the preparation of spherical quartz. This method has a moderate range of temperatures, stable control, high output and can achieve a high rate of spheroidization, making it more suitable for production. The principle and procedure are similar to that of flame melting. This mainly transforms the high-temperature heat source into an plasma generator.
The working gas is compressed 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, then collected by gravity and bag dust (nanoscale). In a matter of 1s-2s the spherical and nanoscale SiO2 can be obtained.
3. Chemical synthesis
To obtain silica sol, heat the silica gel emulsion with ammonia or ammonium bicarbonate. The gel is then treated with acid to produce hydrated spherical silica. 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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