IT1173242B - Ferrosilicon prodn. by direct silica redn. - Google Patents
Ferrosilicon prodn. by direct silica redn.Info
- Publication number
- IT1173242B IT1173242B IT19475/84A IT1947584A IT1173242B IT 1173242 B IT1173242 B IT 1173242B IT 19475/84 A IT19475/84 A IT 19475/84A IT 1947584 A IT1947584 A IT 1947584A IT 1173242 B IT1173242 B IT 1173242B
- Authority
- IT
- Italy
- Prior art keywords
- reductant
- redn
- ferrosilicon
- choice
- iron
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 4
- 229910000519 Ferrosilicon Inorganic materials 0.000 title abstract 2
- 239000000377 silicon dioxide Substances 0.000 title abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 239000007858 starting material Substances 0.000 abstract 2
- 239000012159 carrier gas Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Landscapes
- Silicon Compounds (AREA)
Abstract
Crushed siliceous material and iron-contg. material, opt. together with a reductant, are blown into a plasma gas by means of a carrier gas and then heated with the energy-rich plasma gas in a reaction zone surrounded by lumps of solid reductant. The silica is melted, reduced to silicon and then combined with iron to form ferrosilicon. The process allows particulate starting materials to be used, thus extending the choice of siliceous materials and reducing costs. The electrical properties of the starting materials are unimportant (cf. electric furnace redn. processes) so that the choice of reductants is extended. The continuous excess of reductant ensures that any SiO formed is immediately reduced to silicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19475/84A IT1173242B (en) | 1984-02-07 | 1984-02-07 | Ferrosilicon prodn. by direct silica redn. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19475/84A IT1173242B (en) | 1984-02-07 | 1984-02-07 | Ferrosilicon prodn. by direct silica redn. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8419475A0 IT8419475A0 (en) | 1984-02-07 |
| IT1173242B true IT1173242B (en) | 1987-06-18 |
Family
ID=11158332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT19475/84A IT1173242B (en) | 1984-02-07 | 1984-02-07 | Ferrosilicon prodn. by direct silica redn. |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1173242B (en) |
-
1984
- 1984-02-07 IT IT19475/84A patent/IT1173242B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8419475A0 (en) | 1984-02-07 |
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