Key words: supercritical fluids, aerogel, supercritical drying, homogenization, spraying
A complex study of the production of sodium alginate aerogel particles by emulsion
gelation and dripping methods followed by drying in supercritical carbon dioxide. The
factors that affect the characteristics of the obtained materials are determined. The
above mentioned methods are tested on a semi-industrial level using high pressure
homogenization and spraying through pneumatic nozzles. The resulting gel particles
were dried in a supercritical carbon dioxide medium using the equipment of 0.25 and
2 L volume of drying vessels. The necessary characteristics and quality of the obtained
aerogels do not decline at production scaling-up.
doi:10.1134/S1990793117080073