Ammonium Paratungstate Ultrasonic Technology

Ammonium paratungstate ultrasonic technology is a technology that works in conjunction with ammonium paratungstate crystals. Ultrasound is a kind of sound wave whose frequency is between 10kHz-10MHz and whose wavelength is in the range of 10cm-0.015cm.

Because of its light-like beam properties and similar light propagation characteristics, it is a mechanical vibration wave that easily accumulates energy. Ultrasonic technology to enhance the role of ammonium paratungstate preparation process is brought by ultrasound ultrasound cavitation effects, mechanical and thermal effects, rather than ultrasound directly on the material ammonium paratungstate.

Ammonium paratungstate solution will produce a large number of tiny bubbles in the ultrasonic wave. These bubbles will continue with the role of ultrasound and a series of expansion, closure, oscillation and other dynamic processes, which is the cavitation effect of ultrasonic technology. The bubble generated by this cavitation effect at the moment of sharp collapse, the bubble will produce around 7000 ~ 19000K high temperature and over 500atm high pressure, the rate of change of temperature up to 109K · s-1 high. Accompanied by a strong shock wave and velocity of more than 100m · s-1 of the micro-jet and the occurrence of light-emitting discharge phenomenon.

Ultrasound technology in the crystallization of ammonium paratungstate, can produce mechanical, thermal, optical and chemical effects of the four physical and chemical effects. The interaction between the four effects, promote each other so as to achieve the purpose of mechanical stirring and speed up the chemical reaction. Due to the above characteristics of ultrasonic technology, ultrasonic technology has been widely used to strengthen the ammonium paratungstate crystallization process, and achieved satisfactory results.

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