AT157574B - Process for the preparation of butanediol- (1.3). - Google Patents
Process for the preparation of butanediol- (1.3).Info
- Publication number
- AT157574B AT157574B AT157574DA AT157574B AT 157574 B AT157574 B AT 157574B AT 157574D A AT157574D A AT 157574DA AT 157574 B AT157574 B AT 157574B
- Authority
- AT
- Austria
- Prior art keywords
- butanediol
- preparation
- hydrogen
- butanol
- desc
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung von Butandiol- (1. 3).
Butanol- (1) -on- (3) spaltet schon unter der Einwirkung der geringsten Säure-oder Alkalimengen Wasser ab unter Bildung von Buten- (1) -on- (3). Unterwirft man die Verbindung der Einwirkung von Wasserstoff in Gegenwart von Hydrierkatalysatoren, dann erhält man in quantitativer, sehr glatter Reaktion das Butandiol- (1. 3). Dadurch ist ein leicht gangbarer Weg zur Herstellung von reinem Butandiol- (1. 3) und damit von Butadien- (1. 3) gefunden. Der weniger wertvolle Isobutylalkohol tritt kaum auf.
Beispiel : Die Lösung von ein Gewichtsteil Butanol- (1) -on- (3) in zwei Teilen Wasser wird in Gegenwart eines Nickelkatalysators mit Wasserstoff von 40 Atm. bei Zimmertemperatur reduziert.
Nach einer Stunde ist die berechnete Menge Wasserstoff aufgenommen. Die Aufarbeitung des Reaktionsgemisches erfolgt durch Destillation und ergibt in praktisch quantitativer Ausbeute reines Bu- tandiol- (1. 3). Bei geringerem Wasserstoffdruck verläuft die Reduktion entsprechend langsamer. Die Reduktion kann auch bei erhöhter Temperatur oder in der Gasphase z. B. durch Leiten der mit Wasserstoff gemischten Dämpfe von Butanol- (1) -on- (3) über einen auf Bimsstein aufgetragenen Kupferkatalysator durchgeführt werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the preparation of butanediol- (1. 3).
Butanol- (1) -one- (3) splits off water under the action of even the smallest amounts of acid or alkali, with the formation of butene- (1) -one- (3). If the compound is subjected to the action of hydrogen in the presence of hydrogenation catalysts, the butanediol (1. 3) is obtained in a quantitative, very smooth reaction. As a result, an easily feasible way of producing pure butanediol (1. 3) and thus of butadiene (1. 3) is found. The less valuable isobutyl alcohol hardly occurs.
Example: The solution of one part by weight of butanol- (1) -one- (3) in two parts of water is in the presence of a nickel catalyst with hydrogen of 40 atm. reduced at room temperature.
After one hour the calculated amount of hydrogen has been absorbed. The reaction mixture is worked up by distillation and gives pure butanediol (1.3) in a practically quantitative yield. At a lower hydrogen pressure, the reduction proceeds correspondingly more slowly. The reduction can also take place at elevated temperature or in the gas phase, for. B. by passing the mixed with hydrogen vapors of butanol- (1) -one- (3) over a copper catalyst applied to pumice stone.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE157574X | 1937-02-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT157574B true AT157574B (en) | 1939-12-11 |
Family
ID=5678778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT157574D AT157574B (en) | 1937-02-24 | 1938-02-22 | Process for the preparation of butanediol- (1.3). |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT157574B (en) |
-
1938
- 1938-02-22 AT AT157574D patent/AT157574B/en active
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