GB516880A - Improvements in or relating to the purification of silica sands and the like - Google Patents
Improvements in or relating to the purification of silica sands and the likeInfo
- Publication number
- GB516880A GB516880A GB2053838A GB2053838A GB516880A GB 516880 A GB516880 A GB 516880A GB 2053838 A GB2053838 A GB 2053838A GB 2053838 A GB2053838 A GB 2053838A GB 516880 A GB516880 A GB 516880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sand
- ammonium chloride
- air
- barytes
- cone
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
- C03C1/022—Purification of silica sand or other minerals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
516,880. Depriving sand, barytes and clay of iron. ROCKWARE GLASS SYNDICATE, Ltd., and ADAMS, F. W. July 11, 1938, No. 20538. [Classes 1 (ii) and 1 (iii)] Sand, barytes; china clays and like materials are purified by removing the iron as volatile ferric chloride, by passing the sand &c. downwardly in counter-current to ammonium chloride vapour and dry air or other inert gas at a temperature above 350 ‹C., preferably above 400‹C. Heated dry sand is fed into a hopper 1 and released by a cone 4 controlled by a screw 5. The released sand falls through plates 6, 7, 8, 9 with apertures of decreasing size but closer proximity, to a collecting place 3c. Ammonium chloride vapour is admitted at 10 and air at 16. The air passes through a coil 15 in the hot purified sand and is so heated before impinging on the baffle plates 17 which distribute it evenly in the column 3. The reaction gases pass off by a pipe 11 and are passed into water to precipitate ferric hydroxide and re-form ammonium chloride which is recovered by crystallization. A box 12 catches sand carried ore. The time of contact of the sand with the ammonium chloride vapour is determined by the position of the cone 4 and the velocity of the upward air current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2053838A GB516880A (en) | 1938-07-11 | 1938-07-11 | Improvements in or relating to the purification of silica sands and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2053838A GB516880A (en) | 1938-07-11 | 1938-07-11 | Improvements in or relating to the purification of silica sands and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB516880A true GB516880A (en) | 1940-01-15 |
Family
ID=10147539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2053838A Expired GB516880A (en) | 1938-07-11 | 1938-07-11 | Improvements in or relating to the purification of silica sands and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB516880A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3409391A (en) * | 1966-01-17 | 1968-11-05 | Kawecki Chemical Company | Process for producing high purity columbium oxide |
| US3437430A (en) * | 1966-01-17 | 1969-04-08 | Kawecki Chem Co | Purification of columbium and tantalum pentoxides |
-
1938
- 1938-07-11 GB GB2053838A patent/GB516880A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3409391A (en) * | 1966-01-17 | 1968-11-05 | Kawecki Chemical Company | Process for producing high purity columbium oxide |
| US3437430A (en) * | 1966-01-17 | 1969-04-08 | Kawecki Chem Co | Purification of columbium and tantalum pentoxides |
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