GB949406A - A process for preparing unsaturated aldehydes - Google Patents
A process for preparing unsaturated aldehydesInfo
- Publication number
- GB949406A GB949406A GB2678461A GB2678461A GB949406A GB 949406 A GB949406 A GB 949406A GB 2678461 A GB2678461 A GB 2678461A GB 2678461 A GB2678461 A GB 2678461A GB 949406 A GB949406 A GB 949406A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- unsaturated aldehydes
- preparing unsaturated
- oxygen
- phosphate
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
Unsaturated aldehydes are prepared by oxidising olefins in the vapour phase by molecular oxygen at a temperature between 400 and 700 DEG C. in the presence of a bismuth phosphotungstate catalyst having the formula BiaPbWcOd in which a is 1-30, b is a positive integer not higher than 5, c is 12 and d is 36 to 93.5. Preferably the catalyst is one in which a is in the range 6-15. The catalyst may be supported, for example, on alumina, silica, boron phosphate, aluminium phosphate, clay, pumice stone, titania, diatomite or silicon carbide. The oxygen may be used in pure form or in a mixture with inert gases, e.g. air. Examples are given of the conversion of propylene to acrolein. Specification 912,795 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4528260A | 1960-07-26 | 1960-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB949406A true GB949406A (en) | 1964-02-12 |
Family
ID=21937001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2678461A Expired GB949406A (en) | 1960-07-26 | 1961-07-24 | A process for preparing unsaturated aldehydes |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE606451A (en) |
| GB (1) | GB949406A (en) |
-
1961
- 1961-07-24 GB GB2678461A patent/GB949406A/en not_active Expired
- 1961-07-24 BE BE606451A patent/BE606451A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE606451A (en) | 1962-01-24 |
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