GB797374A - Improvements in silicon containing pigment and process for its production - Google Patents
Improvements in silicon containing pigment and process for its productionInfo
- Publication number
- GB797374A GB797374A GB26732/55A GB2673255A GB797374A GB 797374 A GB797374 A GB 797374A GB 26732/55 A GB26732/55 A GB 26732/55A GB 2673255 A GB2673255 A GB 2673255A GB 797374 A GB797374 A GB 797374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon
- silicon dioxide
- melt
- ferrosilicon
- coke
- 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
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
Abstract
Silicon dioxide is prepared by passing an oxidizing gas having a free O2 content at least equal to that of air in direct and intimate contact with the surface of, or by injecting the oxidizing gas into, a molten silicon-containing mass in a furnace chamber, and recovering the silicon dioxide from suspension in the furnace gases. The melt may be of silicon, of ferrosilicon containing 50-90 per cent silicon, of iron, silicon, or ferrosilicon incorporating silicon, silicon dioxide, or silicon dioxide and a reducing agent therefor, e.g. graphite, coke, coal, or charcoal, of ferrosilicon containing carbon, or of silica, e.g. quartz, sand, or pebbles, and a reducing agent therefor, e.g. carbon, coke, charcoal, sawdust, or chips. The melt may be in an electric furnace, and air or a gas containing 40 per cent O2 may be heated to the temperature of the melt before contact therewith. The silicon dioxide may be recovered in an electrostatic precipitator, bag, or cyclone.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US797374XA | 1954-10-08 | 1954-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB797374A true GB797374A (en) | 1958-07-02 |
Family
ID=22152481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26732/55A Expired GB797374A (en) | 1954-10-08 | 1955-09-19 | Improvements in silicon containing pigment and process for its production |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1131796A (en) |
| GB (1) | GB797374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024456A1 (en) * | 1977-08-11 | 1981-03-11 | Elkem A/S | Thermoplastic resin compositions containing a filler and artifacts formed therefrom |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1064486B (en) * | 1956-11-05 | 1959-09-03 | Pechiney Prod Chimiques Sa | Process for cleaning silicon |
-
1955
- 1955-09-19 GB GB26732/55A patent/GB797374A/en not_active Expired
- 1955-10-03 FR FR1131796D patent/FR1131796A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024456A1 (en) * | 1977-08-11 | 1981-03-11 | Elkem A/S | Thermoplastic resin compositions containing a filler and artifacts formed therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1131796A (en) | 1957-02-27 |
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