METHOD OF OBTAINING ELASTOMER IN SOLID PHASE FROM SOLUTION OF CORRESPONDING POLYMER Russian patent published in 2014 - IPC C08C2/06 C08J3/12 B01J2/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining an elastomer from a polymer solution. The method of obtaining an elastomer in a solid phase from a solution of the corresponding polymer involves: a) possibly pre-concentrating the polymer solution coming from the production system through a sharp pressure drop; b) subjecting the polymer solution, possibly pre-concentrated, to concentrated stripping using water vapour in a mixing device comprising internal moveable mixing parts without transfer of heat in the form of frictional heat; c) evaporating the residual solvent from the concentrated polymer phase coming from step (b) in at least one device comprising internal moveable parts, where the evaporation heat is provided both in form of mechanical energy of said moveable parts, which is transferred to the concentrated polymer solution in the form of frictional heat, and by vapour streams.

EFFECT: high technological and cost effectiveness of the method.

10 cl, 1 dwg