Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – To produce unsaturate
Reexamination Certificate
2006-01-17
2006-01-17
Dang, Thuan D (Department: 1764)
Chemistry of hydrocarbon compounds
Plural serial diverse syntheses
To produce unsaturate
C585S639000, C585S804000
Reexamination Certificate
active
06987208
ABSTRACT:
The present invention provides a process for removing oxygenate impurities, e.g., dimethyl ether, from an olefinic product stream by converting the oxygenate impurity to a compound whose boiling point differs by at least about 5° C. from the oxygenate impurity. Typically, the compound is more readily removable from the product stream than the oxygenate impurity.
REFERENCES:
patent: 4367653 (1983-01-01), Richter et al.
patent: 4387263 (1983-06-01), Vogt et al.
patent: 4587373 (1986-05-01), Hsia
patent: 4625050 (1986-11-01), Current
patent: 4912281 (1990-03-01), Wu
patent: 5491273 (1996-02-01), Santiesteban et al.
patent: 5837217 (1998-11-01), Nielsen et al.
patent: 6084140 (2000-07-01), Kitamura et al.
patent: 27 20 749 (1977-05-01), None
patent: 32 10 756 (1982-03-01), None
patent: 0 229 994 (1989-05-01), None
Engelen et al., “The Conversion of Dimethylether Over Pt/H-ZSm3. A Bifunctional Catalzyed Reaction.”Catalysts by Acids and Bases, Elsevier Science Publishers, Amsterdam, pp. 391-398 (1985).
Chen et al., “The Role of Sillover in Hydrogenation of Oxygenates Absorbed on Ni/AI203”, New Aspects of Spillover Effect in Catalysis, Elsevier Science Publishers, pp. 171-175 (1983).
Beech James H.
Kuechler Keith Holroyd
Lattner James Richardson
Ou John Di-Yi
Risch Michael A.
Dang Thuan D
ExxonMobil Chemical Patents Inc.
LandOfFree
Process for removing oxygenates from an olefinic stream does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for removing oxygenates from an olefinic stream, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing oxygenates from an olefinic stream will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3596557