Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,...
Reexamination Certificate
2008-03-11
2008-03-11
Griffin, Walter D. (Department: 1797)
Chemistry of hydrocarbon compounds
Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...
C585S010000, C585S012000, C585S255000
Reexamination Certificate
active
10937590
ABSTRACT:
A method for the processing of a polyalphaolefin feedstock having a concentration of organic halide to thereby yield a polyalphaolefin end-product having a low concentration of organic halide. The method includes a hydrogenation step whereby the polyalphaolefin feedstock is contacted under suitable reaction conditions with a specific hydrogenation catalyst composition that is resistant to halide deactivation. The hydrogenation catalyst comprises a noble metal on a support material comprising silica and alumina. The hydrogenated polyalphaolefin feedstock is further processed to remove the hydrogen halide produced during the hydrogenation step to yield the polyalphaolefin end-product.
REFERENCES:
patent: 4827064 (1989-05-01), Wu
patent: 5196630 (1993-03-01), Agrawal et al.
patent: 5573657 (1996-11-01), Degnan et al.
patent: 5747596 (1998-05-01), Emert et al.
patent: 6395948 (2002-05-01), Hope et al.
patent: 6433104 (2002-08-01), Macedo et al.
patent: 2002/0128532 (2002-09-01), Hope et al.
patent: 2003/0032847 (2003-02-01), Reynolds
patent: 2005/0256351 (2005-11-01), Birke et al.
patent: 687692 (1995-12-01), None
Gallo et al., “Unsaturation in Isoprene-Isobutylene Copolymers” Industrial and Engineering Chemistry, vol. 40. (1948) pp. 1277-1280.
Birke Peter
Morris Kristi Ann
Neubauer Hans-Dieter
Schoedel Rainer
Campanell Frank C
Griffin Walter D.
Shell Oil Company
Stewart Charles W.
LandOfFree
Polyalphaolefin having a low halide concentration and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyalphaolefin having a low halide concentration and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyalphaolefin having a low halide concentration and a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3927529