Process for working up distillation residues from the hydroformy

Details Process for working up distillation residues from the hydroformy Process for working up distillation residues from the hydroformy

1978-09-07

1980-02-26

Evans, Joseph E.

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

Organic compounds

Oxygen containing

C07C 2924

Patent

active

041907310

ABSTRACT:
The oxo process wherein propene is hydroformylated and then distilled to separate n-butyraldehyde, iso-butyraldehyde, n-butanol, iso-butanol, n-butyl formate, iso-butyl formate and distillation residues having an acid number of about 80 to 130 is improved by adding to the distillation residues molar to twice molar amounts, relative to the acid content, of n-butanol, isobutanol or mixtures thereof, carrying out an esterification in the presence of catalytically active amounts of sulphonic acids at temperatures from about 50.degree. to 200.degree. C., separating off the water of reaction, distilling the esterification reaction product and hydrogenating the distillate thereof.

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

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