GB779494A - Improvements in and relating to the production of catalysts containing vanadium - Google Patents
Improvements in and relating to the production of catalysts containing vanadiumInfo
- Publication number
- GB779494A GB779494A GB2470654A GB2470654A GB779494A GB 779494 A GB779494 A GB 779494A GB 2470654 A GB2470654 A GB 2470654A GB 2470654 A GB2470654 A GB 2470654A GB 779494 A GB779494 A GB 779494A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vanadium
- alkali metal
- silica
- per cent
- glass
- 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
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
-
- 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
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Catalysts (AREA)
Abstract
A skeletal glass catalyst containing vanadium is prepared by fusing a mixture containing a vanadium compound, silica, boric oxide, and an alkali metal compound to produce a glass, heating to cause separation of phases, and extracting at least part of at least one of the phases with an extraction medium. The mixture may contain by weight up to 10 per cent vanadium as V2O5, 30-60 per cent silica, and 10-50 per cent boric oxide, and have an alkali metal oxide to vanadium pentoxide ratio of 1.5:1 to 3:1. Suitable vanadium compounds are vanadium pentoxide, vanadyl sulphate and vanadyl chloride, and suitable alkali metal compounds are oxides, carbonates, bicarbonates, sulphates, bisulphates, and nitrates: alkali metal vanadates, borates, or silicates may be used. The glass may be formed into spheres or rods and heated at 400 DEG -700 DEG C. for 24 hours. Extraction may be carried out with caustic soda, hydrochloric, sulphuric, or nitric acid; the caustic soda solution may be buffered with potassium dihydrogen phosphate. In examples, a mixture of vanadium pentoxide, potassium sulphate, potassium carbonate, silica, and boric oxide is fused at 1300 DEG C., broken into pieces, heated at 500 DEG C., and extracted with boiling aqueous caustic solution of boiling hydrochloric acid. The catalyst is useful for the oxidation of sulphur dioxide to sulphur trioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2470654A GB779494A (en) | 1954-08-25 | 1954-08-25 | Improvements in and relating to the production of catalysts containing vanadium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2470654A GB779494A (en) | 1954-08-25 | 1954-08-25 | Improvements in and relating to the production of catalysts containing vanadium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB779494A true GB779494A (en) | 1957-07-24 |
Family
ID=10215967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2470654A Expired GB779494A (en) | 1954-08-25 | 1954-08-25 | Improvements in and relating to the production of catalysts containing vanadium |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB779494A (en) |
-
1954
- 1954-08-25 GB GB2470654A patent/GB779494A/en not_active Expired
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