PERIODIC ACTION EXTRACTOR FOR EXTRACTION OF TARGET COMPONENTS WITH RECYCLE CHANNELS Russian patent published in 2019 - IPC B01D11/02 

FIELD: technological processes.

SUBSTANCE: invention relates to extractors for a solid body-liquid system and can be used in pharmaceutical, biochemical, food and other industries. Batch extractor comprises a cylindrical body with a perforated flat cover equipped with a pressure gauge and an overpressure relief valve, as well as a handle for closing holes in the cover of the apparatus. On the housing there is a pipe for supply of extractant and solid phase, branch pipe for outlet of the finished product and two recycle channels. In the lower part of the apparatus there is a gas distributing device with an oxygen feed branch pipe.

EFFECT: high intensity of the extraction process of target components from the solid phase due to uniform introduction of oxygen into the extractor, which leads to creation of a bubbling layer and multiple mixing of solid particles in the entire volume of the extractant.

1 cl, 1 dwg