DEVELOPMENT OF ULTRASONIC PROCESSING METHODS FOR CHEMICALLY AGGRESSIVE MEDIUMS UNDER ELEVATED TEMPERATURE AND PRESSURE AND CORRESPONDING POWER ULTRASONIC TECHNOLOGICAL EQUIPMENT

Considers aspects of operating physical principles development and design of power ultrasonic technological equipment intended to work with aggressive mediums under high temperatures and pressure: design features, requirements for acoustic system, peculiarities of measuring transducers and requirements for control system. There is a wide variety of technological processes realized by using of ultrasound energy affecting to liquid medium – all of them are based on cavitation effect in liquids and allow solving emulsification, dispersion, extraction, homogenization, etc. tasks. In some cases, a number of technologies require a combination of ultrasound exposure with high temperature and pressure, using of acids and alkalis. The example of such system, considered in paper, allows processing a highly concentrated alkali solution under high pressure and vacuum conditions with a temperature up to 300 ºC.

Authors: A. A. Vjuginova , A. A. Lbov, Alexander A. Novik, Alexey A. Novik

Direction: Physics

Keywords: Ultrasound, ultrasonic equipment, ultrasonic technology, dispersion, deagglomeration, emulsification, extraction, sonochemistry, elevated pressure, elevated temperature

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