TW265330B - Improved process of producing 1,4-butanediol - Google Patents
Improved process of producing 1,4-butanediolInfo
- Publication number
- TW265330B TW265330B TW81108269A TW81108269A TW265330B TW 265330 B TW265330 B TW 265330B TW 81108269 A TW81108269 A TW 81108269A TW 81108269 A TW81108269 A TW 81108269A TW 265330 B TW265330 B TW 265330B
- Authority
- TW
- Taiwan
- Prior art keywords
- rhodium
- hydrogen
- phosphorous compound
- butanediol
- triphenylphosphine
- Prior art date
Links
Abstract
A process of producing 1,4-butanediol, which comprises using allyl alcohol which comprises less than 10wt% of CH2=CHCH2COOCCH3 and less than 30 wt% of water as impurity, organic solvent, rhodium complex and phosphorous compound under the presence of carbon monoxide and hydrogen to undergo aldehyde reaction; followed by under the presence of carbon monoxide and hydrogen or hydrogen using alkaline aqueous solution to extract out aldehyde products; recycling the rhodium complex raffinate to be used in the aldehyde reaction and adding hydrogenation catalyst into the extract under the presence of hydrogen to undergo hydrogenation reaction and obtain 1,4-butanediol; in which the rhodium complex is selected from carbohydro-tri triphenylphosphine) rhodium, chloro-carbo-di(triphenylphosphine) rhodium, and acetyl acetone carbo(triphenylphosphine) rhodium; and the phosphorous compound is selected from mono phosphorous compound and bi phosphorous compound; and the alkaline solution is an aqueous solution of hydroxide and carbonate; and the pH value of the extract is controlled at 5~9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW81108269A TW265330B (en) | 1992-10-17 | 1992-10-17 | Improved process of producing 1,4-butanediol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW81108269A TW265330B (en) | 1992-10-17 | 1992-10-17 | Improved process of producing 1,4-butanediol |
Publications (1)
Publication Number | Publication Date |
---|---|
TW265330B true TW265330B (en) | 1995-12-11 |
Family
ID=51402110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW81108269A TW265330B (en) | 1992-10-17 | 1992-10-17 | Improved process of producing 1,4-butanediol |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW265330B (en) |
-
1992
- 1992-10-17 TW TW81108269A patent/TW265330B/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK4A | Expiration of patent term of an invention patent |