GB703628A - Improvements in and relating to catalysts - Google Patents
Improvements in and relating to catalystsInfo
- Publication number
- GB703628A GB703628A GB2687050A GB2687050A GB703628A GB 703628 A GB703628 A GB 703628A GB 2687050 A GB2687050 A GB 2687050A GB 2687050 A GB2687050 A GB 2687050A GB 703628 A GB703628 A GB 703628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- catalyst
- prepared
- hydrogen chloride
- tungstic acid
- pellets
- 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
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
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)
Abstract
Alcohols are prepared by the direct hydration of olefines in the presence of a catalyst prepared by treating pellets comprising tungstic acid with dry hydrogen chloride at 200 DEG -600 DEG C. (see Group III). In an example a liquid mixture of 1 part by weight propylene and 7 parts of water is passed over the catalyst at a temperature of 270 DEG C., a pressure of 250 atmospheres, and a rate of 3 litres per litre of catalyst space per hour; a product containing 8 per cent. isopropanol is obtained.ALSO:A catalyst of improved mechanical strength is prepared by treating pellets comprising tungstic acid with dry hydrogen chloride at 200 DEG -600 DEG C. The term "tungstic acid" is defined as a compound of the formula WO3, either anhydrous or hydrated. The pellets may be first heated in nitrogen, which is then replaced, at least in part, by the hydrogen chloride. Before use the catalyst may be reduced. The catalyst is suitable for the direct hydration of olefines, e.g. propylene to isopropanol (see Group IV (b)). Specifications 622,937 and 703,623 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2687050A GB703628A (en) | 1950-11-03 | 1950-11-03 | Improvements in and relating to catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2687050A GB703628A (en) | 1950-11-03 | 1950-11-03 | Improvements in and relating to catalysts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB703628A true GB703628A (en) | 1954-02-10 |
Family
ID=10250508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2687050A Expired GB703628A (en) | 1950-11-03 | 1950-11-03 | Improvements in and relating to catalysts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB703628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372982A (en) * | 1991-07-16 | 1994-12-13 | Neste Oy | Catalyst for metathetic reactions of olefins |
-
1950
- 1950-11-03 GB GB2687050A patent/GB703628A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372982A (en) * | 1991-07-16 | 1994-12-13 | Neste Oy | Catalyst for metathetic reactions of olefins |
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