DE1267680B - Process for the production of trichlorethylene - Google Patents
Process for the production of trichlorethyleneInfo
- Publication number
- DE1267680B DE1267680B DEP1267A DE1267680A DE1267680B DE 1267680 B DE1267680 B DE 1267680B DE P1267 A DEP1267 A DE P1267A DE 1267680 A DE1267680 A DE 1267680A DE 1267680 B DE1267680 B DE 1267680B
- Authority
- DE
- Germany
- Prior art keywords
- trichlorethylene
- tetrachloroethane
- weight
- dehydrochlorination
- parts
- 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.)
- Pending
Links
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 claims description 44
- 239000003054 catalyst Substances 0.000 claims description 15
- 238000007033 dehydrochlorination reaction Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 6
- 238000003776 cleavage reaction Methods 0.000 claims description 5
- 150000003840 hydrochlorides Chemical class 0.000 claims description 4
- REJGOFYVRVIODZ-UHFFFAOYSA-N phosphanium;chloride Chemical group P.Cl REJGOFYVRVIODZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000007017 scission Effects 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 6
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 5
- -1 alkyl phosphines Chemical class 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000007086 side reaction Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- WSPZFVOCHITLIY-UHFFFAOYSA-N 2,2,3,3-tetrachlorobutane Chemical compound CC(Cl)(Cl)C(C)(Cl)Cl WSPZFVOCHITLIY-UHFFFAOYSA-N 0.000 description 1
- DXZAIXOZCUYCQT-UHFFFAOYSA-N 5-(bromomethyl)-3-hydroxy-2,2,4,4-tetramethyl-1-oxidoimidazol-1-ium Chemical compound CC1(C)N(O)C(C)(C)[N+]([O-])=C1CBr DXZAIXOZCUYCQT-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0267—Phosphines or phosphonium compounds, i.e. phosphorus bonded to at least one carbon atom, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, the other atoms bonded to phosphorus being either carbon or hydrogen
- B01J31/0268—Phosphonium compounds, i.e. phosphine with an additional hydrogen or carbon atom bonded to phosphorous so as to result in a formal positive charge on phosphorous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0267—Phosphines or phosphonium compounds, i.e. phosphorus bonded to at least one carbon atom, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, the other atoms bonded to phosphorus being either carbon or hydrogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
AUSLEGESCHRIFTEDITORIAL
Int. CL:Int. CL:
C07cC07c
D061D061
Deutsche Kl.: 12 ο -19/02 German class: 12 ο - 19/02
8i-58i-5
Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:Number:
File number:
Registration date:
Display day:
P 12 67 680.1-42
2. November 1966
9. Mai 1968P 12 67 680.1-42
November 2nd, 1966
May 9, 1968
Trichlorethylen hat in der Praxis vielseitige Anwendung gefunden, z. B. als Lösungsmittel zum Entfetten von Metallen sowie auf dem Gebiet der »Chemischen Reinigung«.Trichlorethylene has many uses in practice found, e.g. B. as a solvent for degreasing metals and in the field of »chemical Cleaning".
Trichloräthylen wird vorwiegend aus 1,1,2,2-Tetrachloräthan durch Abspaltung von Chlorwasserstoff hergestellt. Die in der Technik üblichen Verfahren haben den Nachteil, daß man Spalttemperaturen über 200° C anwenden muß, wobei die Ausbeuten infolge von Nebenreaktionen absinken. Dadurch ergeben sich Schwierigkeiten durch Ablagerungen in den Spaltreaktoren und auf den Katalysatoren; ferner muß das gebildete Trichloräthylen durch nachträgliche Destillation von Verunreinigungen gereinigt werden. Gemäß der USA.-Patentschrift 2 361 072 hat man deshalb auch versucht, 1,1,2,2-Tetrachloräthylen (Sdp 146,2° C) durch Rückflußkochen mittels Aminen zu spalten, um so die Spaltreaktionen bei Temperaturen unter 200° C durchzuführen, während man gleichzeitig am Kopf der Kolonne das tiefersiedende Trichloräthylen (Sdp. zo 87,2° C) abnahm. Aber auch dieses Verfahren hat noch den Nachteil, daß infolge der geringen Katalysatorleistung der Amine lange Verweilzeiten notwendig sind, was wiederum zu Nebenreaktionen und damit zu Ausbeuteverlusten führt. Abgesehen davon sind die Katalysatoren unter den Reaktionsbedingungen dieses Verfahrens flüchtig und müssen während der Reaktion im Reaktor ersetzt und folglich auch aus dem Reaktionsprodukt entfernt werden.Trichlorethylene is mainly made from 1,1,2,2-tetrachloroethane produced by splitting off hydrogen chloride. The usual procedures in the art have the disadvantage that you have to use cleavage temperatures above 200 ° C, the yields as a result of side reactions decrease. This results in difficulties due to deposits in the cleavage reactors and on the catalysts; furthermore, the trichlorethylene formed must be produced by subsequent distillation be cleaned of impurities. US Pat. No. 2,361,072 therefore has also tried to cleave 1,1,2,2-tetrachlorethylene (bp 146.2 ° C) by refluxing using amines to so to carry out the cleavage reactions at temperatures below 200 ° C, while at the same time at the top of the Column the lower-boiling trichlorethylene (bp. Zo 87.2 ° C) decreased. But even this procedure still has the disadvantage that long residence times are necessary due to the low catalyst performance of the amines are, which in turn leads to side reactions and thus to losses in yield. Apart from that, they are Catalysts are volatile under the reaction conditions of this process and must be used during the reaction replaced in the reactor and consequently also removed from the reaction product.
Diese Nachteile werden nun mit Hilfe des vorliegenden Verfahrens zur Herstellung von Trichloräthylen durch katalytische Dehydrochlorierung von 1,1,2,2-Tetrachloräthan bei Temperaturen unter 200° C beseitigt, welches erfindungsgemäß dadurch gekennzeichnet ist, daß man die Dehydrochlorierung in Gegenwart von 0,1 bis 25 Gewichtsteilen eines Alkyl- und/oder Arylphosphins und/oder deren Hydrochloriden oder quartären Phosphoniumchloriden je 100 Gewichtsteilen 1,1,2,2-Tetrachloräthan als Katalysator durchführt und die Spaltprodukte Chlorwasserstoff und Trichloräthylen in üblicher Weise abdestilliert. Zweckmäßig kocht man das Gemisch aus 1,1,2,2-Tetrachloräthan und Katalysator am Rückfluß, vorzugsweise bei Temperaturen zwischen 146 und 160° C. Besonders Trialkyl- oder Triarylphosphin sowie Alkylphosphine mit 4 bis 18 Kohlenstoffatomen je Alkylgruppe eignen sich als Katalysatoren. Man kann vorzugsweise 5 bis 10 Gewichtsteile Katalysator je 100 Gewichtsteile 1,1,2,2-Tetrachloräthan einsetzen.These disadvantages are now addressed with the aid of the present process for the preparation of trichlorethylene by catalytic dehydrochlorination of 1,1,2,2-tetrachloroethane at temperatures below 200 ° C eliminated, which according to the invention is characterized in that the dehydrochlorination in Presence of 0.1 to 25 parts by weight of an alkyl and / or arylphosphines and / or their hydrochlorides or quaternary phosphonium chlorides per 100 parts by weight 1,1,2,2-tetrachloroethane is used as a catalyst and the cleavage products are hydrogen chloride and trichlorethylene distilled off in the usual way. The mixture of 1,1,2,2-tetrachloroethane is expediently boiled and catalyst at reflux, preferably at temperatures between 146 and 160 ° C. Especially trialkyl or triaryl phosphine and alkyl phosphines with 4 to 18 carbon atoms each Alkyl groups are suitable as catalysts. You can preferably 5 to 10 parts by weight of catalyst each Use 100 parts by weight of 1,1,2,2-tetrachloroethane.
Folgende Alkylreste eignen sich beispielsweise als »alkyl« in den Alkylphosphinen: η-Butyl, iso-Butyl, n-Pentyl, n-Hexyl, n-Heptyl, n-Octyl, n-Nonyl, n-De-Verf ahren zur Herstellung von TrichloräthylenThe following alkyl radicals are suitable, for example, as "alkyl" in the alkylphosphines: η-butyl, iso-butyl, n-Pentyl, n-Hexyl, n-Heptyl, n-Octyl, n-Nonyl, n-De-Verf ears for the production of trichlorethylene
Anmelder:Applicant:
Knapsack Aktiengesellschaft,Knapsack Aktiengesellschaft,
5033 Hürth-Knapsack5033 Huerth-Knapsack
Als Erfinder benannt:Named as inventor:
Dipl.-Chem. Dr. Herbert Baader,Dipl.-Chem. Dr. Herbert Baader,
5030 Hermülheim;5030 Hermülheim;
Dipl.-Chem. Dr. Kurt Sennewald, 5033 Knapsack; Helmut Reis, 5030 HürthDipl.-Chem. Dr. Kurt Sennewald, 5033 Knapsack; Helmut Reis, 5030 Huerth
cyl, n-Undecyl, n-Dodecyl (lauryl), Palmityl oder Stearyl. Hierbei können die Di- und Trialkylphosphine auch verschiedene Alkylgruppen enthalten. Als Arylphosphine kommen besonders Triphenylphosphin, das wegen seiner guten Beständigkeit gegen Luftsauerstoff leicht zu handhaben ist, aber auch die verschiedenen Tritolyl- oder Trixylylphosphine in Frage. Die Alkyl- oder Arylphosphine bzw. deren Hydrochloride oder quartären Phosphoniumchloride verhalten sich im erfindungsgemäßen Verfahren als echte Katalysatoren, und jedes Molekül des Katalysators verursacht die Dehydrochlorierung vieler Moleküle Tetrachloräthan. Das erfindungsgemäße Verfahren kann durchgeführt werden, indem der Reaktionsmischung lediglich ein geeignetes tertiäres Phosphin zugesetzt wird, wobei sich Hydrochloride und quartäre Phosphoniumchloride in Gegenwart von Chlorwasserstoff bzw. Tetrachloräthan von selbst bilden.cyl, n-undecyl, n-dodecyl (lauryl), palmityl or Stearyl. The di- and trialkylphosphines can also contain various alkyl groups. As arylphosphines Triphenylphosphine comes especially because of its good resistance to atmospheric oxygen is easy to handle, but also the various tritolyl or trixylyl phosphines in question. The alkyl or aryl phosphines or their hydrochlorides or quaternary phosphonium chlorides behave in the process according to the invention as real catalysts, and every molecule of the catalyst causes the dehydrochlorination of many molecules of tetrachloroethane. The inventive method can be carried out by adding only a suitable tertiary phosphine to the reaction mixture is added, whereby hydrochlorides and quaternary phosphonium chlorides in the presence of hydrogen chloride or form tetrachloroethane by themselves.
Die Katalysatorleistung beträgt beim Rückflußkochen des Tetrachloräthans unter Normaldruck etwa 1,8 Mol Trichloräthylen je Mol Triphenylphosphin und Stunde. Man kann die Reaktionsgeschwindigkeit selbstverständlich durch Erhöhung der Reaktionstemperatur, z. B. durch Anwendung von höhersiedenden Lösungsmitteln, noch steigern.The catalyst performance when the tetrachloroethane is refluxed under normal pressure is about 1.8 moles of trichlorethylene per mole of triphenylphosphine and hour. One can change the reaction speed of course by increasing the reaction temperature, e.g. B. by using higher boiling Solvents, still increase.
Zweckmäßigerweise setzt man auf den Reaktor eine Fraktionierkolonne und stellt am Kopf mit Hilfe des Rücklaufes den Siedepunkt von Trichloräthylen (87,20C) ein. Während das Trichloräthylen am Kopf der Kolonne kondensiert wird, kann Chlorwasserstoff gasförmig abgenommen werden.Advantageously, relies on the reactor, a fractionation column and provides the head with the aid of the return to the boiling point of trichlorethylene (87.2 0 C). While the trichlorethylene is condensing at the top of the column, hydrogen chloride can be removed in gaseous form.
Verbindungen mit der Struktur —CCl2 — CCl2 — sind im allgemeinen mit Alkyl- oder Arylphosphin nicht dehydrochlorierbar. So wird z. B. 2,2,3,3-Tetrachlorbutan bei 170° C von Triphenylphosphin nicht angegriffen. Aus diesem Grunde wurde zunächst erwartet, daß das 24° C tiefer siedende 1,1,2,2-Tetrachlor-Compounds with the structure —CCl 2 - CCl 2 - are generally not dehydrochlorizable with alkyl or aryl phosphine. So z. B. 2,2,3,3-tetrachlorobutane at 170 ° C by triphenylphosphine not attacked. For this reason it was initially expected that the 1,1,2,2-tetrachloro, which had a lower boiling point of 24 ° C, would
809 548/440809 548/440
1010
äthan ebenfalls gegenüber Triphenylphosphin inert ist. Überraschenderweise ist dies, wie aus den Beispielen hervorgeht, nicht der Fall.Ethane is also inert towards triphenylphosphine. Surprisingly, this is how from the examples it appears not the case.
Mit dem Verfahren der Erfindung ist es jetzt möglich, Trichloräthylen aus 1,1,2,2-Tetrachloräthan mit fast quantitativer Ausbeute bei Rückflußtemperatur des Tetrachloräthans herzustellen, wobei die Katalysatorleistung sehr viel höher ist als bei Verwendung von Aminen. So erhält man z. B. erfindungsgemäß je Stunde und Mol Triphenylphosphin etwa 1,8 Mol Trichloräthylen; nach dem Verfahren der USA.-Patentschrift 2 361072 können aber trotz höherer Reaktionstemperatur höchstens 0,26 Mol Trichloräthylen je Mol Amin in der Stunde hergestellt werden.With the method of the invention it is now possible to use trichlorethylene from 1,1,2,2-tetrachloroethane produce almost quantitative yield at the reflux temperature of the tetrachloroethane, with the catalyst performance is much higher than when using amines. So you get z. B. according to the invention each Hour and mole of triphenylphosphine about 1.8 moles of trichlorethylene; according to the method of the USA patent specification 2 361072, however, despite the higher reaction temperature, a maximum of 0.26 mol of trichlorethylene can be used can be produced per mole of amine per hour.
Triphenylphosphin bietet den Vorteil, unter den Reaktionsbedingungen nicht flüchtig zu sein. Es neigt weniger zur Verharzung und kann infolgedessen nach dem Versuch als Triphenylphosphinhydrochlorid zurückgewonnen werden.Triphenylphosphine has the advantage of not being volatile under the reaction conditions. It tends to less resinification and can consequently be recovered as triphenylphosphine hydrochloride after the experiment will.
In einen 1-1-Kolben mit Fraktionierkolonne (zehn theoretischen Böden), Tropftrichter und Thermometer wurden 800 g 1,1,2,2-Tetrachloräthan und 64 g Triphenylphosphin (0,244MoI) gegeben und am Rück- as fluß gekocht (Blasentemperatur 149° C). Im Laufe von 8 Stunden wurden noch 201 g Tetrachloräthan zugetropft und gleichzeitig am Kopf der Kolonne 292 g Destillat abgenommen, welches aus 277,7 g (2,11 Mol) Trichloräthylen und 14,3 g Tetrachloräthan bestand. Gasförmig entweichender Chlorwasserstoff wurde im Wasser absorbiert.In a 1-1 flask with a fractionating column (ten theoretical trays), dropping funnel and thermometer were 800 g of 1,1,2,2-tetrachloroethane and 64 g of triphenylphosphine (0.244MoI) and on the back as River boiled (bubble temperature 149 ° C). In the course of 8 hours, 201 g of tetrachloroethane were added dropwise and at the same time taken off at the top of the column 292 g of distillate, which consists of 277.7 g (2.11 mol) Trichlorethylene and 14.3 g of tetrachloroethane existed. Gaseous escaping hydrogen chloride was im Absorbs water.
Die Reaktionsblase enthielt am Ende des Versuches noch 547,2 g Tetrachloräthan und 62,8 g Trichloräthylen (0,477 Mol). Es hatten sich also 439,5 g Tetrachloräthan (2,62 Mol) mit einer Ausbeute von 99 % zu Trichloräthylen umgesetzt. Die Katalysatorleistung errechnet sich zu 1,32 Mol Trichloräthylen je Mol Triphenylphosphin und Stunde.At the end of the experiment, the reaction bubble still contained 547.2 g of tetrachloroethane and 62.8 g of trichlorethylene (0.477 moles). So there were 439.5 g of tetrachloroethane (2.62 mol) with a yield of 99% converted to trichlorethylene. The catalyst performance is calculated as 1.32 moles of trichlorethylene per mole of triphenylphosphine and hour.
2020th
In der Apparatur von Beispiel 1 wurden 800 g 1,1,2,2-Tetrachloräthan und 160 g Triphenylphosphin (0,61 Mol) vorgelegt und bei 153 bis 157° C am Rückfluß gekocht. Innerhalb von 14 Stunden wurden g frisches Tetrachloräthan zugetropft und über Kopf ein Destillat mit 97,6 g Gewichtsprozent Trichloräthylen entnommen.In the apparatus of Example 1, 800 g of 1,1,2,2-tetrachloroethane and 160 g of triphenylphosphine were added (0.61 mol) and refluxed at 153 to 157 ° C. Within 14 hours were g of fresh tetrachloroethane were added dropwise and a distillate with 97.6 g percent by weight of trichlorethylene was added overhead taken.
Es wurden am Ende des Versuchs insgesamt 2035,7 g Trichloräthylen (15,5MoI) und 181,3 g Tetrachloräthan wiedergefunden.At the end of the experiment, a total of 2035.7 g of trichlorethylene (15.5MoI) and 181.3 g Tetrachloroethane found again.
Die Ausbeute des Trichloräthylens, bezogen auf umgesetztes Tetrachloräthan, war demnach 98,2%. Die Katalysatorleistung errechnet sich zu 1,81 Mol Trichloräthylen je Mol Triphenylphosphin und Stunde.The yield of trichlorethylene, based on converted tetrachloroethane, was accordingly 98.2%. The catalyst performance is calculated as 1.81 moles of trichlorethylene per mole of triphenylphosphine and hour.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP1267A DE1267680B (en) | 1966-11-02 | 1966-11-02 | Process for the production of trichlorethylene |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0060611 | 1966-11-02 | ||
| DEP1267A DE1267680B (en) | 1966-11-02 | 1966-11-02 | Process for the production of trichlorethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1267680B true DE1267680B (en) | 1968-05-09 |
Family
ID=25750975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP1267A Pending DE1267680B (en) | 1966-11-02 | 1966-11-02 | Process for the production of trichlorethylene |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1267680B (en) |
-
1966
- 1966-11-02 DE DEP1267A patent/DE1267680B/en active Pending
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