Purification and hydrogenation of furan concentrates

Details Purification and hydrogenation of furan concentrates Purification and hydrogenation of furan concentrates

1975-02-07

1976-11-30

Randolph, John D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30702

Patent

active

039949311

ABSTRACT:
Furan concentrates containing deleterious unsaturated contaminants including sulfur compounds are purified prior to hydrogenation by contacting with zinc oxide either prior to or subsequent to separation of high boiling materials from the concentrate with the result that the furan concentrate is hydrogenated to high purity product comprising either furan and saturated materials or tetrahydrofuran and saturated materials with extended hydrogenation catalyst life. In a preferred embodiment, the furan concentrate is obtained as the by-product stream from hydrocarbon oxidative dehydrogenation processes and is subjected to distillation to remove therefrom materials boiling above about 80.degree. C prior to contacting with zinc oxide and hydrogenation.

REFERENCES:
patent: 2479306 (1949-08-01), Cairns
patent: 3629149 (1971-12-01), Mulaskey
patent: 3639521 (1972-02-01), Hsieth
patent: 3642658 (1972-02-01), Allum et al.
patent: 3864363 (1975-02-01), Kile
Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd ed., vol. 10, pp. 237-250 (Interscience Publishers, Inc.).
Kice et al., Modern Principles of Organic Chemistry, p. 355, The Macmillan Co., NY.

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