GB623595A - Improvements in and relating to catalysts - Google Patents
Improvements in and relating to catalystsInfo
- Publication number
- GB623595A GB623595A GB554547A GB554547A GB623595A GB 623595 A GB623595 A GB 623595A GB 554547 A GB554547 A GB 554547A GB 554547 A GB554547 A GB 554547A GB 623595 A GB623595 A GB 623595A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon
- nickel
- catalysts
- per cent
- weight
- 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
- B01J25/00—Catalysts of the Raney type
- B01J25/02—Raney nickel
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)
- Catalysts (AREA)
Abstract
Nickel-silicon foraminate catalysts are prepared by treating an alloy, in which the ratio by weight of nickel: silicon is from 30 : 70 to 85 : 15, with aqueous alkali to remove not more than 70 per cent of the original silicon content. The alloy is prepared from a melt by rapid cooling and broken up into granular grading between 1/16 to 1 inch. An aqueous solution of 5 to 50 per cent by weight caustic soda is used at approximately 100 DEG C. The alkali, if not washed out of the catalyst, may be used as a promoter therefore. Regeneration is effected by oxidation and reduction, but below 400 DEG C. The catalysts may be used for hydrogenation, dehydrogenation, hydrogenolysis and reductive amination, particularly ethylene to ethane, dihydropyran to tetrahydropyran, and cyclohexane to benzene.ALSO:Nickel-silicon feraminate catalysts are prepared by treating alloys in which the ratio by weight of nickel-silicon is from 30 : 70 to 85 : 15, with aqueous alkali to remove not more than 70 per cent of the original silicon content. A 5 to 50 per cent by weight solution of caustic soda is used, at approximately 100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB554547A GB623595A (en) | 1947-02-26 | 1947-02-26 | Improvements in and relating to catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB554547A GB623595A (en) | 1947-02-26 | 1947-02-26 | Improvements in and relating to catalysts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623595A true GB623595A (en) | 1949-05-19 |
Family
ID=9798173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB554547A Expired GB623595A (en) | 1947-02-26 | 1947-02-26 | Improvements in and relating to catalysts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623595A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1310302A3 (en) * | 2001-11-09 | 2004-05-26 | Air Products And Chemicals, Inc. | Process for regenerating a monolithic catalytic hydrogenation reactor |
-
1947
- 1947-02-26 GB GB554547A patent/GB623595A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1310302A3 (en) * | 2001-11-09 | 2004-05-26 | Air Products And Chemicals, Inc. | Process for regenerating a monolithic catalytic hydrogenation reactor |
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