PURIFICATION METHOD OF REGENERATED POLYETHYLENE Russian patent published in 2020 - IPC C08J11/08 B29B17/00 

FIELD: chemistry.

SUBSTANCE: method includes producing regenerated polyethylene, bringing it into contact with a first liquid solvent to obtain extracted regenerated polyethylene, and then dissolving the extracted regenerated polyethylene in a solvent to obtain a first solution containing polyethylene and suspended contaminants. First solution is deposited to produce a second solution containing polyethylene and remaining contaminants. Second solution is cleaned by bringing the second solution into contact with solid media to obtain a third solution containing purer polyethylene. Finally, the purer polyethylene is separated from the third solution.

EFFECT: disclosed is a method of purifying regenerated polyethylene.

15 cl, 1 dwg