Treatment of contaminated hydrocarbon from olefin polymerization

Details Treatment of contaminated hydrocarbon from olefin polymerization Treatment of contaminated hydrocarbon from olefin polymerization

1976-10-12

1977-12-27

Holler, Alan

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Removing and recycling removed material from an ongoing...

526 67, 526351, 526912, 528494, C08F 600, C08F 1000, C08F 1006

Patent

active

040656101

ABSTRACT:
In conventional olefin polymerization using TiCl.sub.3 -containing Ziegler type catalysts, the catalyst-containing reaction product may be de-ashed by treatment with titanium-solubilizing compounds such as alcohols and the polymer product from the de-ashing step washed with a hydrocarbon to separate it from catalyst residue. It is desirable to treat the dirty hydrocarbon wash liquid to recover purified hydrocarbon suitable for recycle to the polymerization reaction. According to this invention the dirty hydrocarbon wash liquid is treated with an epoxy compound in the presence of an alcohol and distilled to recover purified hydrocarbon suitable for recycle.

REFERENCES:
patent: 3271380 (1966-09-01), Dietz
patent: 3281399 (1966-10-01), Renaudo et al.
patent: 3300464 (1967-01-01), Dietz
patent: 3436386 (1969-04-01), Harris

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