Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-08-08
1977-06-28
Evans, Joseph E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260485R, 260637R, 260643D, C07C 2900
Patent
active
040324583
ABSTRACT:
An improved process is disclosed wherein 1,4-butanediol is produced from a maleic acid-containing solution in a multistep process comprising esterification of maleic acid at elevated temperature and pressure in the presence of a monohydric alcohol to form dialky esters of maleic acid, hydrogenation of the dialkyl esters to 1,4-butanediol in a two-step hydrogenation process, recovery of the 1,4-butanediol substantially free from other close boiling contaminants in an extraction zone and recovering 1,4-butanediol in high purity from a distillation zone operated at reduced pressure.
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Adkins et al. "J. Am. Chem. Soc.," vol. 70 (1948), pp. 3121-3125.
Arganbright Robert P.
Bowman William G.
Cooley Stone D.
Henery James D.
Dry N. Elton
Evans Joseph E.
Johnson Kenneth H.
Petro-Tex Chemical Corporation
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