FR2137427A1 - Prodn of ferrosilicon - by resistance heated smelting - Google Patents
Prodn of ferrosilicon - by resistance heated smeltingInfo
- Publication number
- FR2137427A1 FR2137427A1 FR7142749A FR7142749A FR2137427A1 FR 2137427 A1 FR2137427 A1 FR 2137427A1 FR 7142749 A FR7142749 A FR 7142749A FR 7142749 A FR7142749 A FR 7142749A FR 2137427 A1 FR2137427 A1 FR 2137427A1
- Authority
- FR
- France
- Prior art keywords
- slag
- sio2
- ferrosilicon
- furnace
- carbonaceous matter
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
Melting of high quality ferrosilicon wherein molten slag is accumulated and maintained in a furnace, the starting materials comprising quartz, iron ore, bulk carbonaceous matter for reducing the core, and materials producing the slag, in which the carbonaceous matter is sufficiently immersed in the slag layer due its ability to float. The starting material is supported in the upper part of the furnace and the ends of the electrodes are always immersed in the slag. The ratio (CaO + MgO + BaO)/SiO2 in the slag is 0.6, the m.pt. is reduced without loss of SiO2 activity, the slag acting as an electrical resistance and an electric current is passed to provide Joule heating sufficient to reduce the SiO2 to Si. The process avoids side reaction occurring in the electric arc process producing deleterious components (e.g. Al).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP46031398A JPS5133050B1 (en) | 1971-05-10 | 1971-05-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2137427A1 true FR2137427A1 (en) | 1972-12-29 |
FR2137427B1 FR2137427B1 (en) | 1977-01-21 |
Family
ID=12330139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7142749A Granted FR2137427A1 (en) | 1971-05-10 | 1971-11-29 | Prodn of ferrosilicon - by resistance heated smelting |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5133050B1 (en) |
AU (1) | AU472284B2 (en) |
BE (1) | BE774097A (en) |
CA (1) | CA968565A (en) |
CH (1) | CH582245A5 (en) |
DE (1) | DE2153305A1 (en) |
ES (1) | ES396520A1 (en) |
FR (1) | FR2137427A1 (en) |
SE (1) | SE384381B (en) |
ZA (1) | ZA717926B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2414560A1 (en) * | 1978-01-13 | 1979-08-10 | Metal Research Corp | High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxide |
FR2626008A1 (en) * | 1988-01-07 | 1989-07-21 | G Energet | PROCESS FOR OBTAINING FERROSILICIUM IN A HOME ENERGY UNIT |
GR1000234B (en) * | 1988-02-04 | 1992-05-12 | Gni Energetichesky Inst | Preparation method of ierro-sicicon in furnaces for electric energy generation |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE421065B (en) * | 1979-10-24 | 1981-11-23 | Kema Nord Ab | PROCEDURE FOR THE PREPARATION OF SILICONE OR FERROKISEL |
-
1971
- 1971-05-10 JP JP46031398A patent/JPS5133050B1/ja active Pending
- 1971-10-18 BE BE774097A patent/BE774097A/en unknown
- 1971-10-20 ES ES396520A patent/ES396520A1/en not_active Expired
- 1971-10-26 DE DE19712153305 patent/DE2153305A1/en active Pending
- 1971-11-25 ZA ZA717926A patent/ZA717926B/en unknown
- 1971-11-29 FR FR7142749A patent/FR2137427A1/en active Granted
- 1971-12-23 SE SE7116565A patent/SE384381B/en unknown
-
1972
- 1972-01-03 CH CH3172A patent/CH582245A5/xx not_active IP Right Cessation
- 1972-01-05 AU AU37618/72A patent/AU472284B2/en not_active Expired
- 1972-03-23 CA CA137,903A patent/CA968565A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2414560A1 (en) * | 1978-01-13 | 1979-08-10 | Metal Research Corp | High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxide |
FR2626008A1 (en) * | 1988-01-07 | 1989-07-21 | G Energet | PROCESS FOR OBTAINING FERROSILICIUM IN A HOME ENERGY UNIT |
GR1000234B (en) * | 1988-02-04 | 1992-05-12 | Gni Energetichesky Inst | Preparation method of ierro-sicicon in furnaces for electric energy generation |
Also Published As
Publication number | Publication date |
---|---|
DE2153305A1 (en) | 1972-11-23 |
AU3761872A (en) | 1973-07-12 |
FR2137427B1 (en) | 1977-01-21 |
JPS5133050B1 (en) | 1976-09-17 |
AU472284B2 (en) | 1976-05-20 |
SE384381B (en) | 1976-05-03 |
CH582245A5 (en) | 1976-11-30 |
ES396520A1 (en) | 1974-05-16 |
BE774097A (en) | 1972-02-14 |
CA968565A (en) | 1975-06-03 |
ZA717926B (en) | 1972-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |