公开(公告)号：ZA80544B

公开(公告)日：1981-02-25

申请号：ZA80544

申请日：1980-01-30

Applicant: HOECHST AG

Inventor： WILLMS R ,  KAISER K ,  KUXDORF B

IPC: C08F6/00 ,  C08F6/06 ,  C08F6/10 ,  C08F10/00 ,  C08F

Abstract: The invention relates to an improved process, wherein polyolefins are freed from saturated liquid residual hydrocarbons with the aid of water and steam. The improvement comprises A. introducing the hydrocarbon-containing polyolefin into an aqueous emulsifier-containing solution having a surface tension at 20 DEG C. of about 50 to 60 dynes/cm with respect to air; stirring the resulting mixture and converting it to a homogeneous dispersion, the aqueous dispersion containing about 10 to 40 weight % of the polyolefin; B. introducing the dispersion into the upper portion of a column provided with 5 to 30 sieve plates and overflow weirs and contacting the dispersion in countercurrent fashion with steam of about 100 DEG to 120 DEG C.

公开(公告)号：ZA8000544B

公开(公告)日：1981-02-25

申请号：ZA8000544

申请日：1980-01-30

Applicant: HOECHST AG

Inventor： WILLMS R ,  KAISER K ,  KUXDORF B

IPC: C08F6/00 ,  C08F6/06 ,  C08F6/10 ,  C08F

CPC classification number: C08F6/10