GB785657A - Catalyst for gas phase oxidation reactions and processes effected therewith - Google Patents
Catalyst for gas phase oxidation reactions and processes effected therewithInfo
- Publication number
- GB785657A GB785657A GB26223/55A GB2622355A GB785657A GB 785657 A GB785657 A GB 785657A GB 26223/55 A GB26223/55 A GB 26223/55A GB 2622355 A GB2622355 A GB 2622355A GB 785657 A GB785657 A GB 785657A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platinum
- gauge
- layer
- per cent
- gas phase
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/24—Nitric oxide (NO)
- C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
A catalytic oxidation in the gas phase, e.g. for the production of hydrogen cyanide or nitric oxide, is carried out by passing a suitable gaseous mixture downwards first through one or more platinum or platinum alloy gauges and then through a layer of granular refractory material coated with platinum or a platinum alloy, the gauge and layer of coated granular material being in contact and gauge and coating each containing at least 50 per cent platinum. The gauge and coating may contain 80-90 per cent platinum and 10-20 per cent rhodium. The refractory material may be beryllium aluminium silicate, silica, porcelain or alumina of 6-10 mesh, and may be used in a layer 0.75-1.5 in. thick. The gauze may be activated for subsequent use by interposing between a previously activated gauze and already used coated granular material, and carrying out reaction for 3-30 hours. Hydrogen cyanide may be produced from ammonia, natural gas and air in the volume ratio of 1 : 2 : 10.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US785657XA | 1954-09-17 | 1954-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB785657A true GB785657A (en) | 1957-10-30 |
Family
ID=22144847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26223/55A Expired GB785657A (en) | 1954-09-17 | 1955-09-13 | Catalyst for gas phase oxidation reactions and processes effected therewith |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB785657A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0275681A1 (en) * | 1986-12-23 | 1988-07-27 | Johnson Matthey Public Limited Company | Ammonia oxidation catalyst pack |
-
1955
- 1955-09-13 GB GB26223/55A patent/GB785657A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0275681A1 (en) * | 1986-12-23 | 1988-07-27 | Johnson Matthey Public Limited Company | Ammonia oxidation catalyst pack |
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