Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1996-09-23
1999-03-02
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C07C 2914
Patent
active
058773584
ABSTRACT:
In the process of hydrogenating a crude aldehyde product formed from the oxo process into a crude alcohol product, which process includes: feeding the crude aldehyde product into a first reactor which contains a hydrogenation catalyst, thereby forming a first hydrogenated product; feeding the first hydrogenated product from the first reactor through at least one intermediate reactor, each intermediate reactor being connected in series and containing a hydrogenation catalyst, thereby forming at least one intermediate hydrogenated product; and feeding the intermediate hydrogenated product from a last intermediate reactor to a final reactor which contains a hydrogenation catalyst, thereby forming the crude alcohol product; the improvement including a step wherein: at least a portion of the first hydrogenated product is recycled to the first hydrogenation reactor; or at least a portion of the intermediate hydrogenated product is recycled to the first hydrogenation reactor or an intermediate reactor upstream of the intermediate reactor from which the intermediate hydrogenated product is removed.
REFERENCES:
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patent: 4451677 (1984-05-01), Bradley et al.
patent: 4658068 (1987-04-01), Hanin
patent: 4960960 (1990-10-01), Harrison et al.
patent: 5030774 (1991-07-01), Oswald et al.
patent: 5093535 (1992-03-01), Harrison et al.
Agosto Magdiel
Brown Donald Q.
Garton Ronald D.
Badio Barbara
Dees Jos,e G.
Exxon Chemical Patents Inc.
Griffis Andrew B.
Hunt John F.
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