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US 7,396,945 B1Granted
Method of preparing tetrahydrofuran
AssigneeHyosung Corporation
InventorsEun-Ku Lee, Yong-Ho Baek
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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.
Claims5
The process for preparing tetrahydrofuran from 1,4-butanediol, comprising the steps of:
- pretreating a metal sulfate catalyst with an inert gas to be activated, and
- introducing the activated catalyst into a reactor with 1,4-butanediol wherein the metal sulfate catalyst is selected from the group consisting of aluminum sulfate, nickel sulfate, ferrous sulfate and chromium sulfate.
Dependencies are inferred from the claim text.