Appeal No. 96-2339
Application 08/299,391
to a decantation separation zone and separating it therein
into a distillate isobutylene fraction and a water fraction;
and
g) continuously returning from about 85 to about 90 wt.%
of said distillate isobutylene fraction to said counter-
current contact tower as said second isobutylene recycle
fraction and returning the remaining 10 to 15 wt.% of said
distillate isobutylene fraction to said isobutylene fraction
as said first isobutylene recycle fraction.
10
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Last modified: November 3, 2007