Process for the improved manufacture of 2-ethylhexanol

Details Process for the improved manufacture of 2-ethylhexanol Process for the improved manufacture of 2-ethylhexanol

1978-03-20

1979-02-06

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568913, 568914, C07C 2914

Patent

active

041385888

ABSTRACT:
An improvement in a process for the manufacture of 2-ethylhexanol wherein n-butyraldehyde is subjected to aldol condensation, the resultant aldol condensation product is catalytically hydrogenated in a hydrogenation stage and the hydrogenation product is subjected to two separate multiple stage distillations to separate, in the first case the first runnings, a fraction containing the main amount of 2-ethylhexanol, and the residue. In the second case this residue is separated into a 2-ethylhexanol fraction and a distillation residue, the improvement residing in cracking the distillation residue by heating the same at 200 to 250.degree. C whereby to obtain cracked products comprising n-butanal, 2-ethylhexenal, 2-ethylhexanal, and/or 2-ethylhexanol together with non-cracked higher boiling substances. The cracked products are separated from the non-cracked products and the cracked products are recycled to the hydrogenation stage.

REFERENCES:
patent: 2595096 (1952-04-01), Parker
patent: 2614128 (1952-10-01), Mertzweiller
patent: 2671119 (1954-03-01), Mertzweiller
patent: 3501537 (1970-03-01), Johnson, Jr. et al.
patent: 3935285 (1976-01-01), Tummes et al.

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