Methods for the manufacture of 1,4-butanediol and tetrahydrofuran, and methods for the purification of crude 1,4-butanediol.
TW202637518APending Publication Date: 2026-09-16MITSUBISHI CHEM CORP
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Patent Information
- Application Number
- TW115106324
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-02-20
- Filing Date
- 2026-02-23
- Publication Date
- 2026-09-16
Abstract
A method for producing 1,4-butanediol and tetrahydrofuran includes: separating crude 1,4-butanediol containing impurities into 1,4-butanediol and mother liquor by melt crystallization; subjecting the mother liquor to hydrogenation treatment and then performing a cyclization reaction, or performing a cyclization reaction simultaneously with hydrogenation treatment, thereby obtaining tetrahydrofuran and separating it.
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