DE2648443C2 - Process for the preparation of olefinically unsaturated compounds by non-oxidative dehydrogenation in the presence of a spinel catalyst - Google Patents
Process for the preparation of olefinically unsaturated compounds by non-oxidative dehydrogenation in the presence of a spinel catalystInfo
- Publication number
- DE2648443C2 DE2648443C2 DE2648443A DE2648443A DE2648443C2 DE 2648443 C2 DE2648443 C2 DE 2648443C2 DE 2648443 A DE2648443 A DE 2648443A DE 2648443 A DE2648443 A DE 2648443A DE 2648443 C2 DE2648443 C2 DE 2648443C2
- Authority
- DE
- Germany
- Prior art keywords
- unsaturated compounds
- spinel
- oxidative dehydrogenation
- catalysts
- olefinically unsaturated
- 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
- 239000003054 catalyst Substances 0.000 title claims description 20
- 150000001875 compounds Chemical class 0.000 title claims description 14
- 238000000034 method Methods 0.000 title claims description 11
- 229910052596 spinel Inorganic materials 0.000 title claims description 11
- 239000011029 spinel Substances 0.000 title claims description 11
- 238000002360 preparation method Methods 0.000 title claims description 5
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 title claims 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 150000001340 alkali metals Chemical class 0.000 claims description 6
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
- 229910017052 cobalt Inorganic materials 0.000 claims 2
- 239000010941 cobalt Substances 0.000 claims 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 2
- 229920006395 saturated elastomer Polymers 0.000 claims 2
- 229910000859 α-Fe Inorganic materials 0.000 claims 2
- SYWDWCWQXBUCOP-UHFFFAOYSA-N benzene;ethene Chemical compound C=C.C1=CC=CC=C1 SYWDWCWQXBUCOP-UHFFFAOYSA-N 0.000 claims 1
- 150000001868 cobalt Chemical class 0.000 claims 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 1
- -1 ethylene benzene Chemical class 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 16
- 239000011651 chromium Substances 0.000 description 4
- 229910052792 caesium Inorganic materials 0.000 description 3
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical group CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- 229910021555 Chromium Chloride Inorganic materials 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/86—Chromium
- B01J23/862—Iron and chromium
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/86—Chromium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
- C07C5/333—Catalytic processes
- C07C5/3335—Catalytic processes with metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
in welcher R die vorstehende Bedeutung hat, bei dem man eine Mischung aus einer Verbindung R— CH2-CH3 und überhitztem Dampf bei einer Temperatur im Bereich von 400 bis 750° C über einen Spinell-Katalysator, der ein Alkalimetall als Promotor enthält, leitet, ist daher dadurch gekennzeichnet, daß man einen Spinell der Formel A4Cr^Fe1O4 einsetzt, in welcher Ain which R has the above meaning, in which a mixture of a compound R — CH 2 —CH 3 and superheated steam at a temperature in the range from 400 to 750 ° C over a spinel catalyst which contains an alkali metal as a promoter, conducts, is therefore characterized in that a spinel of the formula A 4 Cr ^ Fe 1 O 4 is used, in which A
ίο Zink oder Magnesium bedeutet, a einen Wert von 1, b einen Wert von 0,1 bis 1 und c einen Wert von 1 bis 1,9 hat, mit der Maßgabe daß die Summe von a+ b+c dem ίο zinc or magnesium, a has a value of 1, b has a value of 0.1 to 1 and c has a value from 1 to 1.9 has, with the proviso that the sum of a + b + c the
Katalysator ein Spinell der Formel MgFeiSCro.i04 verwendet, der Kalium als Promotor enthältCatalyst uses a spinel of the formula MgFei S Cro.i0 4 , which contains potassium as a promoter
Besonders geeignet ist das erfindungsgemäße Verfahren zur Herstellung von olefinisch ungesättigten Verbindungen der Formel R-CH=CH2, bei denen R Alkyl- oder Alkenylgruppen mit 2 bis 20 Kohlenstoffatomen bedeuten, wobei diese Gruppen geradkettig oder verzweigtkettig sein können. Insbesondere eignet sich das erfindungsgemäße Verfahren zur Dehydrierung von Isoamylen und Äthylbenzol.The process according to the invention is particularly suitable for the preparation of olefinically unsaturated compounds of the formula R-CH = CH 2 , in which R denotes alkyl or alkenyl groups with 2 to 20 carbon atoms, these groups being straight-chain or branched-chain. The process according to the invention is particularly suitable for the dehydrogenation of isoamylene and ethylbenzene.
Die Dehydrierungstemperatur liegt beim erfindungsgemäßtn Verfahren insbesondere im Bereich von 550 bis 75O0C. Die Dehydrierung kann bei unteratmosphärischem, atmosphärischem oder überatmosphärischem Druck durchgeführt werden. Die Dehydrierung wirdThe dehydrogenation temperature lies with erfindungsgemäßtn method in particular in the range of 550 to 75O 0 C. The dehydrogenation may be carried out at subatmospheric, atmospheric or superatmospheric pressure. The dehydration will be
üblicherweise in Abwesenheit von 2 bis 20 MoI Dampf je Mol der Ausgangsverbindung mit der Formel R—
CH2-CH3 durchgeführt, wobei R die vorstehend angegebene
Bedeutung hat
Zweckmäßig wird die Reaktion in Stahlreaktoren durchgeführt Da die Dehydrierung stark endotherm ist,usually carried out in the absence of 2 to 20 mol of steam per mol of the starting compound with the formula R — CH 2 —CH 3 , where R has the meaning given above
The reaction is expediently carried out in steel reactors. Since the dehydrogenation is strongly endothermic,
wird die erforderliche Wärme dem Reaktor mittels überhitzten Dampfes zugeführt der eine Temperatur imthe required heat is supplied to the reactor by means of superheated steam which has a temperature of
halb weniger Sekunden ab, im allgemeinen in einem Zeitraum von 0,1 bis 10 Sekunden, der ausreicht um die Ausgangsmischung einer Verbindung der Formel R— CH2-CH3 und Dampf über den Katalysator zu leiten. Für die Umsetzung können Röhrenreaktoren oder Reaktoren mit Radialfluß verwendet werden.half a few seconds, generally in a period of 0.1 to 10 seconds, which is sufficient to pass the starting mixture of a compound of the formula R — CH 2 —CH 3 and steam over the catalyst. Tubular reactors or reactors with radial flow can be used for the reaction.
Als Alkalimetall-Promotoren eignen sich beispielsweise Kalium oder Caesium. Der Katalysator enthält im allgemeinen mindestens etwa 0,1 Gewichtsprozent des Alkalimetall-Promotors. Beispiele für im Rahmen der Erfindung einsetzbare Spinellkatalysatoren sind die folgenden Zusammensetzungen:Potassium or cesium, for example, are suitable as alkali metal promoters. The catalyst contains im generally at least about 0.1 percent by weight of the alkali metal promoter. Examples of the Spinel catalysts which can be used in the invention are the following compositions:
MgCrFeO4;MgCrFeO 4 ;
Diese Katalysatoren werden dann durch ein Alkalimetall aktiviert, beispielsweise durch einen Zusatz von Kalium oder Caesium oder eine Kombination aus Kalium und Caesium.These catalysts are then activated by an alkali metal, for example by adding Potassium or cesium, or a combination of potassium and cesium.
a) Herstellung eines Katalysators D:a) Preparation of a catalyst D:
2573 g Ferrichlorid der Formel FeCI3 · 6 H2O, 101,Sg Magnesiumchlorid der Forme! MgCl · 6 H2O und 13,6 g Chromchlorid der Formel2573 g ferric chloride of the formula FeCl 3 · 6 H 2 O, 101, Sg magnesium chloride of the form! MgCl · 6 H 2 O and 13.6 g of chromium chloride of the formula
CrCl3 · 6 H2O werden in 2,2 Liter Wasser aufgelöst, um auf diese Weise etwa 100 g Spinell der Formel MgCro.i Fe^O4 zu erhalten. Zu dieser Mischung wird unter kräftigem Rühren eine konzentrierte ammoniakalische Lösung zugesetzt, um auf diese Weise einen pH-Wert von etwa 103 einzustellen. Der sich bildende Niedeischlag wird durch Abdekantieren der überstehenden Flüssigkeit und Filtrieren gewonnen, dann zweimal mit verdünnter ammoniakalischer Lösung (pH-Wert > 10) gewäsehen, dann 12 Stunden lang bei 1200C getrocknet und schließlich 2 Stunden lang bei 8000C calziniert Nach dem Abkühlen wird das Calcinat pulverisiert, so daß man Teilchen mit einer Größe von wenigerCrCl 3 · 6 H 2 O are dissolved in 2.2 liters of water in order to obtain in this way about 100 g of spinel of the formula MgCr o .i Fe ^ O 4 . A concentrated ammoniacal solution is added to this mixture while stirring vigorously in order to adjust the pH to about 103. The forming Niedeischlag is recovered by decanting off the supernatant liquid and filtering, then (pH> 10) gewäsehen twice with dilute ammoniacal solution, then dried for 12 hours at 120 0 C and finally 2 hours, calcined at 800 0 C after Cooling down the calcinate is pulverized, leaving particles with a size of less
ίοίο
μμ
17,7 g Kaliumcarbonat (K.2CO3) werden mit dem zerkleinerten Calcinat vermischt, und diese Mischung wird mit Wasser zu einer homogenen Paste verarbeitet Die Paste trocknet mar 12 Stunden lang bei 1200C und gewinnt daraus durch Pulverisieren Teilchen mit einer Größe von weniger als 250 μ. Das Pulverprodukt wird mit 23 g Stearinsäure und 23g Polyvinylalkohol versetzt und dann so lange gemischt, bis die Masse trocken ist, und anschließend pelletisierL Die Pellets werden 2 Stunden bei 800° C calcinierL Durch Röntgenbeugungsanalyse wird bestätigt, daß das Calcinat Spinellstruktur hat17.7 g of potassium carbonate (K.2CO3) are mixed with the crushed calcine, and this mixture is processed into a homogeneous paste with water. The paste dries for 12 hours at 120 ° C. and pulverizes it to obtain particles with a size of less than 250 μ. The powder product is mixed with 23 g of stearic acid and 23 g of polyvinyl alcohol and then mixed until the mass is dry, and then pelletized. The pellets are calcined for 2 hours at 800 ° C. X-ray diffraction analysis confirms that the calcine has a spinel structure
Für die Herstellung von Styrol vermischt man beispielsweise Dampf und Äthylbenzol, erhitzt diese Mischung auf 250° C und speist sie dann in den Reaktor ein. Dabei können beispielsweise die folgenden Umsetzungsbedingungen angewendet werden: To produce styrene, for example, steam and ethylbenzene are mixed and heated Mixture to 250 ° C and then feeds it into the reactor. For example, the following Implementation conditions are applied:
Volumen des Katalysatorbettes in ml:
Teilchengröße in mm:
Durchmesser
des Reaktors in mm:
Reinheitsgrad des
Äthylbenzols in Vo:
entionisiertes Wasser
für die Dampferzeugung,
Temperatur in ° C:
Druck:Volume of the catalyst bed in ml:
Particle size in mm:
diameter
of the reactor in mm:
Degree of purity of the
Ethylbenzene in Vo:
deionized water
for steam generation,
Temperature in ° C:
Pressure:
Molverhältnis
H2O zu Äthylbenzol:
Raumgeschwindigkeit,
1.1-'.h-':
Versuchsdauer, Std.:Molar ratio
H 2 O to ethylbenzene:
Space velocity,
1.1 - '. H-':
Test duration, hours:
1010
0,425 bis 1,180.425 to 1.18
14
9914th
99
550 bis 650
Atmosphärendruck oder überatmosphärischer Druck550 to 650
Atmospheric pressure or superatmospheric pressure
1212th
0,65
5 bis 60.65
5 to 6
F: MnCr2O4+ 5 Gewichtsprozent Cs;
G: CoFeuCr0jO4+5 Gewichtsprozent CsF: MnCr 2 O 4 + 5 weight percent Cs;
G: CoFeuCr 0 jO 4 +5 percent by weight Cs
+5 Gewichtsprozent K.+5 percent by weight K.
(Die Katalysatoren C D und E sind erfindungsgemäß, die übrigen dienen zum Vergleich.)(The catalysts C D and E are according to the invention, the others are used for comparison.)
In F i g. 1 ist die Versuchsdauer in Stunden auf der Abszisse und die prozentuale Umwandlung von Äthylbenzol auf der Ordinate aufgetragen worden. Die Buchstaben A bis G an den einzelnen Kurven beziehen sich auf die Art des eingesetzten Katalysators, wobei die Zusammensetzung der verwendeten Katalysatoren vorstehend angegeben istIn Fig. 1 is the duration of the experiment in hours on the abscissa and the percentage conversion of ethylbenzene has been plotted on the ordinate. The letters A to G on the individual curves relate on the type of catalyst used, the composition of the catalysts used above is specified
In F i g. 2 ist der prozentuale Umwandlungsgrad von Äthylbenzol auf der Abszisse und die Selektvität der Reaktion auf der Ordinate aufgetragen worden. Die Selektivität der Reaktion bestimmt sich dabei nach der nachstehenden Gleichung:In Fig. 2 is the percentage conversion of ethylbenzene on the abscissa and the selectivity of the Response has been plotted on the ordinate. The selectivity of the reaction is determined by the below equation:
5555
Anschließend wird das Reaktionsprodukt abgekühlt und dann die Menge an gebildetem Styrol
durch Chromatographie bestimmt
in den Fig.] und 2 sind graphisch die Ergebnisse von
einer Anzahl von Versuchen dargestellt, welche mittels eo
der nachstehenden Katalysatoren durchgeführt worden sind, die gemäß Abschnitt a) hergestellt wurden.The reaction product is then cooled and the amount of styrene formed is then determined by chromatography
Figures 1 and 2 show graphically the results of a number of tests which have been carried out using the following catalysts which have been prepared in accordance with section a).
6565
Die in den F i g. 1 und 2 graphisch dargestellten Versuchsergebnisse bestätigen, daß die erfindungsgemäßen Katalysatoren C, D und E einen wesentlich besseren Wirkungsgrad aufweisen als die Vergleichskatalysatoren. Diese Feststeilung gilt sowohl für den Umwandlungsgrad des als Ausgangsverbindung eingesetzten Äthylbenzols als auch für die Selektivität der Bildung des Dehydrierungsproduktes.The in the F i g. 1 and 2 graphically presented test results confirm that the inventive catalysts C, D and E are significantly better Show efficiency than the comparison catalysts. This fixed division applies to both the degree of conversion of the ethylbenzene used as the starting compound as well as for the selectivity of the formation of the dehydration product.
3535
4040
4545
5050
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7532908A FR2329620A1 (en) | 1975-10-28 | 1975-10-28 | NON-OXIDIZING DEHYDROGENATION PROCESS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2648443A1 DE2648443A1 (en) | 1977-05-05 |
| DE2648443C2 true DE2648443C2 (en) | 1986-02-06 |
Family
ID=9161732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2648443A Expired DE2648443C2 (en) | 1975-10-28 | 1976-10-26 | Process for the preparation of olefinically unsaturated compounds by non-oxidative dehydrogenation in the presence of a spinel catalyst |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS603289B2 (en) |
| CA (1) | CA1072987A (en) |
| DE (1) | DE2648443C2 (en) |
| FR (1) | FR2329620A1 (en) |
| GB (1) | GB1550873A (en) |
| IT (1) | IT1069010B (en) |
| NL (1) | NL7611828A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2411169A1 (en) * | 1977-12-12 | 1979-07-06 | Shell France | DEHYDROGENATION PROCESS WITHOUT OXIDATION AND CATALYTIC COMPOSITION FOR IMPLEMENTING THIS PROCESS |
| FR2497192A1 (en) * | 1980-12-29 | 1982-07-02 | Shell France | NON-OXIDIZING DEHYDROGENATION PROCESS |
| FR2511671A1 (en) * | 1981-08-18 | 1983-02-25 | Davy Mckee Ag | DEHYDROGENATION PROCESS |
| DE19715203A1 (en) * | 1997-04-11 | 1998-10-15 | Basf Ag | Side chain alkylation catalyst and process |
| EP4603470A1 (en) * | 2024-02-19 | 2025-08-20 | Dow Global Technologies LLC | Methods for converting alkanes to alkenes using steam tolerant dehydrogenation catalysts with spinel structures |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3291756A (en) * | 1964-01-09 | 1966-12-13 | Baugh Chemical Company | Catalytic dehydrogenation |
| US3360579A (en) * | 1965-05-21 | 1967-12-26 | Shell Oil Co | Catalytic dehydrogenation of alkylaromatics |
| US3364277A (en) * | 1965-05-21 | 1968-01-16 | Shell Oil Co | Dehydrogenating olefins to diolefins in the presence of a yellow iron oxide catalyst |
| US3440299A (en) * | 1967-01-27 | 1969-04-22 | Petro Tex Chem Corp | Dehydrogenation process using magnesium ferrite |
| BE790702A (en) * | 1970-07-10 | 1973-04-27 | Dow Chemical Co | PROCESS FOR MANUFACTURING A DEHYDROGENATION CATALYST, CATALYST OBTAINED AND ITS APPLICATION TO THE MANUFACTURE OF VINYLAROMATIC HYDROCARBONS |
| US3781376A (en) * | 1971-06-30 | 1973-12-25 | Petro Tex Chem Corp | Dehydrogenation process and catalyst |
-
1975
- 1975-10-28 FR FR7532908A patent/FR2329620A1/en active Granted
-
1976
- 1976-10-07 CA CA262,968A patent/CA1072987A/en not_active Expired
- 1976-10-26 DE DE2648443A patent/DE2648443C2/en not_active Expired
- 1976-10-26 GB GB44428/76A patent/GB1550873A/en not_active Expired
- 1976-10-26 JP JP51127901A patent/JPS603289B2/en not_active Expired
- 1976-10-26 IT IT28713/76A patent/IT1069010B/en active
- 1976-10-26 NL NL7611828A patent/NL7611828A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2648443A1 (en) | 1977-05-05 |
| CA1072987A (en) | 1980-03-04 |
| GB1550873A (en) | 1979-08-22 |
| FR2329620B1 (en) | 1979-01-19 |
| FR2329620A1 (en) | 1977-05-27 |
| JPS5253803A (en) | 1977-04-30 |
| IT1069010B (en) | 1985-03-21 |
| JPS603289B2 (en) | 1985-01-26 |
| NL7611828A (en) | 1977-05-02 |
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