Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – To produce unsaturate
Reexamination Certificate
2005-03-29
2005-03-29
Dang, Thuan Dinh (Department: 1764)
Chemistry of hydrocarbon compounds
Plural serial diverse syntheses
To produce unsaturate
C585S331000, C585S332000, C585S643000, C585S646000, C585S664000, C585S671000
Reexamination Certificate
active
06872862
ABSTRACT:
A method for making propylene from alpha olefins, internal linear olefins and isoolefins wherein the alpha olefins are subjected to a combination of hydrogenation and double bond isomerization to form additional internal linear olefins, the internal linear olefins are separated from the isoolefins and disproportionated with ethylene to form a propylene product, while the thus separated isoolefins are subjected to skeletal isomerization to form yet additional internal linear olefins to be converted into yet additional propylene product.
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Bridges Robert S.
Coleman Steven T.
Powers Donald H.
Dang Thuan Dinh
Equistar Chemicals LP
MacDonald Roderick W.
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