GB1121806A - Disproportionation catalysts - Google Patents
Disproportionation catalystsInfo
- Publication number
- GB1121806A GB1121806A GB2768566A GB2768566A GB1121806A GB 1121806 A GB1121806 A GB 1121806A GB 2768566 A GB2768566 A GB 2768566A GB 2768566 A GB2768566 A GB 2768566A GB 1121806 A GB1121806 A GB 1121806A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- re2o7
- olefins
- disproportionation
- tho2
- 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
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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/36—Rhenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C6/00—Preparation of hydrocarbons from hydrocarbons containing a different number of carbon atoms by redistribution reactions
- C07C6/02—Metathesis reactions at an unsaturated carbon-to-carbon bond
- C07C6/04—Metathesis reactions at an unsaturated carbon-to-carbon bond at a carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Acyclic olefins are disproportionated in the presence of Re2O7 on SnO2, ThO2 or ZrO2. Typical reaction conditions are - 20 DEG to 500 DEG C., 0 to 200 p.s.i.g. G.H.S.V. 500 to 5000 v./v. Olefins mentioned are C3- 30 alkenes; specified olefins range from propylene up to octenes. An example describes the disproportionation of propylene to ethylene and butene-2.ALSO:Disproportionation catalysts are made by dissolving in water a soluble compound of an element of Group IV of the Periodic Table, which element forms a refractory oxide, precipitating the hydroxide on the oxide of the element from aqueous solution, converting the hydroxide to the oxide if necessary, isolating the oxide, passing a stream of carrier gas over the oxide and heating Re2O7 on a precursor therefor in the stream of carrier gas upstream of the Group IV oxide whereby Re2O7 is deposited thereon. Specified oxides are ZrO2, ThO2 and SuO2. Only the use of the latter is exemplified. The catalyst may be activated by heating in air or an inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2768566A GB1121806A (en) | 1966-06-21 | 1966-06-21 | Disproportionation catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2768566A GB1121806A (en) | 1966-06-21 | 1966-06-21 | Disproportionation catalysts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1121806A true GB1121806A (en) | 1968-07-31 |
Family
ID=10263631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2768566A Expired GB1121806A (en) | 1966-06-21 | 1966-06-21 | Disproportionation catalysts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1121806A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025111A (en) * | 1987-10-21 | 1991-06-18 | Bp Chemicals Limited | Production of non-conjugated diolefins |
-
1966
- 1966-06-21 GB GB2768566A patent/GB1121806A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025111A (en) * | 1987-10-21 | 1991-06-18 | Bp Chemicals Limited | Production of non-conjugated diolefins |
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