GB801246A - Processing an aqueous phosphorus emulsion - Google Patents
Processing an aqueous phosphorus emulsionInfo
- Publication number
- GB801246A GB801246A GB34404/56A GB3440456A GB801246A GB 801246 A GB801246 A GB 801246A GB 34404/56 A GB34404/56 A GB 34404/56A GB 3440456 A GB3440456 A GB 3440456A GB 801246 A GB801246 A GB 801246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphorus
- sludge
- per cent
- mixture
- emulsion
- 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
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/003—Phosphorus
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/01—Treating phosphate ores or other raw phosphate materials to obtain phosphorus or phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/12—Oxides of phosphorus
Abstract
Phosphorus pentoxide is produced by burning a mixture of an aqueous phosphorus emulsion and substantially pure liquid yellow phosphorus, preferably at a temperature of 80-90 DEG C. Admixing may be effected at the same temperature by a stirrer or by injection of an inert gas. The mixture may be covered with a layer of water in which case stirring may be by a slowly operating blade stirrer. The mixture may be stored in a tank kept at a constant temperature by means of a heating jacket. The emulsion may be a phosphorus sludge obtained by precipitating with water previously dust-freed phosphorus vapour from a phosphate reduction furnace. Such sludge may contain 25-75 per cent of phosphorus and 2-4 per cent of solid impurities. It is preferred to use a sludge containing 40-60 per cent of phosphorus and 2 per cent of solid impurities. The proportion to sludge to pure phosphorus may be 1 : 1-10 and is preferably 1 : 5. The sludge is preferably washed with water before admixing. The phosphorus pentoxide produced may be hydrated to produce an anhydrous phosphoric acid and may be further diluted to any desired concentration. Suspended impurity in the aqueous phosphoric acid may be removed by filtration.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE801246X | 1955-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB801246A true GB801246A (en) | 1958-09-10 |
Family
ID=6715333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34404/56A Expired GB801246A (en) | 1955-11-10 | 1956-11-09 | Processing an aqueous phosphorus emulsion |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB801246A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0098038A1 (en) * | 1982-06-28 | 1984-01-11 | Stauffer Chemical Company | Recovery of phosphorus from sludge |
| US4686094A (en) * | 1986-08-08 | 1987-08-11 | Stauffer Chemical Company | Treatment of pyrophoric elemental phosphorus-containing material |
-
1956
- 1956-11-09 GB GB34404/56A patent/GB801246A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0098038A1 (en) * | 1982-06-28 | 1984-01-11 | Stauffer Chemical Company | Recovery of phosphorus from sludge |
| US4686094A (en) * | 1986-08-08 | 1987-08-11 | Stauffer Chemical Company | Treatment of pyrophoric elemental phosphorus-containing material |
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