Method of preparing tetrahydrofuran

Details Method of preparing tetrahydrofuran Method of preparing tetrahydrofuran

2008-07-08

2008-07-08

Dentz, Bernard (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C502S217000

Reexamination Certificate

active

11785654

ABSTRACT:
The present invention relates to a process for preparing tetrahydrofuran from 1,4-butandiol. According to the process in the present invention, a metal sulfate catalyst selected from the group consisting of aluminum sulfate, nickel sulfate, ferrous sulfate and chrome sulfate is pre-treated with an inert gas to be activated, followed by introducing into a reactor together with 1,4-butandiol.

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patent: 508548 (1939-07-01), None
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patent: 9-59191 (1997-03-01), None
Castelnuovo et al., J. Therm. Anal. Cal., 2001, 233-247.

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