GB1477089A - Catalyst and process for redicing nitrogen oxides - Google Patents
Catalyst and process for redicing nitrogen oxidesInfo
- Publication number
- GB1477089A GB1477089A GB4737075A GB4737075A GB1477089A GB 1477089 A GB1477089 A GB 1477089A GB 4737075 A GB4737075 A GB 4737075A GB 4737075 A GB4737075 A GB 4737075A GB 1477089 A GB1477089 A GB 1477089A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- redicing
- catalyst
- nitrogen oxides
- calcining
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/86—Chromium
- B01J23/862—Iron and chromium
-
- 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
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/053—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
1477089 Nitrogen oxide reduction catalysts UBE INDUSTRIES Ltd 18 Nov 1975 47370/ 75 Heading B1E [Also in Division Cl] Catalysts comprise a base of an iron oxide and a chromium oxide, and 0.1-20% by wt of the base of aluminium sulphate. They may be made by calcining a mixture of an iron salt, hydroxide or oxide with a chromium salt, hydroxide or oxide at up to 500‹C either adding the sulphate before the calcination or adding it afterwards and calcining at up to 500‹C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4737075A GB1477089A (en) | 1975-11-18 | 1975-11-18 | Catalyst and process for redicing nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4737075A GB1477089A (en) | 1975-11-18 | 1975-11-18 | Catalyst and process for redicing nitrogen oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1477089A true GB1477089A (en) | 1977-06-22 |
Family
ID=10444723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4737075A Expired GB1477089A (en) | 1975-11-18 | 1975-11-18 | Catalyst and process for redicing nitrogen oxides |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1477089A (en) |
-
1975
- 1975-11-18 GB GB4737075A patent/GB1477089A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19951117 |