DE596819C - Process for the production of ethyl alcohol and ether - Google Patents
Process for the production of ethyl alcohol and etherInfo
- Publication number
- DE596819C DE596819C DED61678D DED0061678D DE596819C DE 596819 C DE596819 C DE 596819C DE D61678 D DED61678 D DE D61678D DE D0061678 D DED0061678 D DE D0061678D DE 596819 C DE596819 C DE 596819C
- Authority
- DE
- Germany
- Prior art keywords
- acid
- ethylene
- pressure
- atm
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims description 22
- 235000019441 ethanol Nutrition 0.000 title claims description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 title claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 18
- 239000005977 Ethylene Substances 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000012084 conversion product Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 239000000047 product Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/03—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
- C07C29/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Die Erfindung bezweckt die Herstellung· von Alkohol und Äther oder ihrer Gemische aus Äthylen in wirtschaftlich, praktischiem Maßstabe.The invention aims at the production of alcohol and ether or their mixtures from ethylene in economical, practical Scale.
Die Umwandlung von Olefinen höher als Äthylen (z. B. Propylen) in die entsprechenden Alkohole mittels Schwefelsäure ist bekannt; die allgemeine Annahme ging dahin, daß, je niedriger das Olefin ist,.-desto stärkerThe conversion of olefins higher than ethylene (e.g. propylene) into the corresponding Alcohols by means of sulfuric acid are known; the general assumption was that that the lower the olefin, the stronger
to die Säure sein muß.to the acid must be.
Die Benutzung hochkonzentrierter Schwefelsäure (z.B. Säure von 95 °/o) im Verein mit erhöhtem Druck und gewissen Katalysatoren für die Absorption von Äthylen und die Erzielung von Alkohol aus dem resultierenden Äthylester der Schwefelsäure durch. Verdünnung und anschließende Destillation ist bekannt. Solche Verfahren zur Umwandlung von Äthylen in Alkohol sind aber nicht industriell durchführbar, weil die Wiedergewinnung und Wiederkonzentration der Säure zu ihrer ursprünglichen) hohen Stärke so schwierig ist, daß dadurch das Verfahren als kontinuierliches unpraktisch wird. Die Verwendung von weniger starker Säure im Verein mit !erhöhter Temperatur wurde von Wibaut und Dieckmann (Proceedings of the Koninklijke Akademie van Wetenschappen te Amsterdam 1923, Band 26, Seite 323 bis 326) erforscht; diese Forscher benutzten aber atmosphärischen Druck und kamen zu der Ansicht, daß ihr Verfahren nicht zu .einem industriellen Verfahren für die Herstellung von Äthylalkohol führen könnte.The use of highly concentrated sulfuric acid (e.g. acid of 95%) in the club with increased pressure and certain catalysts for the absorption of ethylene and the achievement of alcohol from the resulting ethyl ester of sulfuric acid by. Dilution and subsequent distillation are known. Such process of conversion of ethylene in alcohol are not industrially feasible because the recovery and reconcentration of the acid to its original) high strength is so difficult that it prevents the process as continually becomes impractical. The use of less strong acid in the club with! increased temperature Wibaut and Dieckmann (Proceedings of the Koninklijke Akademie van Wetenschappen te Amsterdam 1923, Volume 26, Pages 323 to 326) explored; however, these researchers used atmospheric pressure and came to the conclusion that their process was not an industrial process for could lead to the production of ethyl alcohol.
Es wurde aber festgestellt, daß bei Verwendung einer Temperatur unter 2000 im. Verein mit einem Druck von 50 bis 250 Atm. Äthylen in Schwefelsäure von einer Stärke von nur 50 bis 80 o/o (vorzugsweise zwischen 60 und 75 o/o) absorbiert werden kann, wodurch das Verfahren der Herstellung von Äthylalkohol und Äther aus Äthylen industriell anwendbar und kontinuierlich durchführbar wird, weil die Wiedergewinnung und Rückkonzentration der Säure auf eine ursprüngliche Stärke von nur 50 bis 80 o/o ein relativ 'einfaches und wirtschaftliches Verfahren ist.However, it has been found that when using a temperature below 200 0 im. Association with a pressure of 50 to 250 atm. Ethylene can be absorbed in sulfuric acid from a strength of only 50 to 80 o / o (preferably between 60 and 75 o / o ), making the process of producing ethyl alcohol and ether from ethylene industrially and continuously feasible because the recovery and Concentration of the acid back to an original strength of only 50 to 80 o / o is a relatively simple and economical process.
Äthylen oder an Äthylen reiche Gasgemische können verwendet werden, z. B. Äthylenfraktionein, die man aus den Gasen erhält, die von der Druckwärmespaltung von Kohlenwasserstoffölen herrühren.Ethylene or ethylene-rich gas mixtures can be used, e.g. B. ethylene fraction, obtained from the gases produced by the pressure heat splitting of hydrocarbon oils originate.
Das Umwandlungserzeugnis kann durch Destillation in üblicher Art isoliert werden, es ist aber zu beachten, daß eine Rückkonzentration der Säure auf 70 <y0 Stärke durchaus wirtschaftlich ist, während .eine Konzentration auf 95 0/0 oder mehr kostspielig ist.The conversion product can be isolated by distillation in the usual way, but it is to be noted that a return concentration of the acid at 70 <0 y strength is quite economical, while .a concentration at 95 0/0 or more costly.
Die Temperatur soll 2000 nicht überschreiten, und es genügen. Drücke bis etwa 250 Atm.The temperature should not exceed 200 0 , and that is sufficient. Press up to about 250 atm.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB596819X | 1930-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE596819C true DE596819C (en) | 1934-05-14 |
Family
ID=10484210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED61678D Expired DE596819C (en) | 1930-08-09 | 1931-08-09 | Process for the production of ethyl alcohol and ether |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE596819C (en) |
-
1931
- 1931-08-09 DE DED61678D patent/DE596819C/en not_active Expired
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