Recovery of BF.sub.3 from olefin oligomer process
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United States of America Patent
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Sep 11, 1990
Grant Date -
N/A
app pub date -
Oct 17, 1988
filing date -
Oct 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for recovering BF.sub.3 from a BF.sub.3 -promoter catalyzed .alpha.-olefin oligomerization process is disclosed wherein the oligomer reaction product is water washed to extract BF.sub.3 as its hydrate and any water soluble promoter and the water extract is distilled to remove components boiling below BF.sub.3 hydrate overhead leaving a residual product which is at least 50 weight percent BF.sub.3 in the form of BF.sub.3 hydrate.
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