RO81107B1 - Procedeu pentru prepararea unor compacte poroase cu densitate scazuta dintr-un amestec fin maruntit de silice, facultativ fier si agent de reducere carbonifer - Google Patents
Procedeu pentru prepararea unor compacte poroase cu densitate scazuta dintr-un amestec fin maruntit de silice, facultativ fier si agent de reducere carboniferInfo
- Publication number
- RO81107B1 RO81107B1 RO102561A RO10256180A RO81107B1 RO 81107 B1 RO81107 B1 RO 81107B1 RO 102561 A RO102561 A RO 102561A RO 10256180 A RO10256180 A RO 10256180A RO 81107 B1 RO81107 B1 RO 81107B1
- Authority
- RO
- Romania
- Prior art keywords
- silica
- reducing agent
- weight
- preparation
- low density
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
- C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
-
- 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
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/023—Preparation by reduction of silica or free silica-containing material
- C01B33/025—Preparation by reduction of silica or free silica-containing material with carbon or a solid carbonaceous material, i.e. carbo-thermal process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Silicon Compounds (AREA)
- Cookers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Procedeul pentru prepararea unor compacte poroase cu densitate scazuta, dintr-un amestec fin maruntit de silice, facultativ fier si agent de reducere carbonifer, în prezenta unui liant si eventual a unui agent de vracuire si în cantitati aproximativ stoichiometrice corespunzatoare reducerii ulterioare la siliciu respectiv la ferosiliciu, conform inventiei, elimina dezavantajele mentionate mai sus prin aceea ca folosind un material fin maruntit cu continut de silice format din 25....100% greutate praf de silice, 0....75% greutate nisip silicios si 0....75% greutate prundis silicios, acest material, eventual împreuna cu particule de fier, se amesteca cu agentul de reducere carbonifer fin maruntit ca de exemplu cocs de petrol si sau carbune cu liant cerealier ca de exemplu amidon de grîu si cu circa 50 parti greutate silice totala, formîndu-se astfel un amestec umed care în continuare este mai întîi depozitat în strat subtire de circa 5 cm grosime pe o suprafata plana si apoi este uscat la temperaturi ridicate de peste 200 degree C pentru eliminarea apei, dupa care stratul uscat este spart în bucatele de diferite forme si dimensiuni neregulate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/134,205 US4309216A (en) | 1980-03-26 | 1980-03-26 | Low density compacts of prepared mix for use in the production of silicon and ferrosilicon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81107A2 RO81107A2 (ro) | 1983-04-29 |
| RO81107B1 true RO81107B1 (ro) | 1983-04-30 |
Family
ID=22462236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO102561A RO81107B1 (ro) | 1980-03-26 | 1980-11-11 | Procedeu pentru prepararea unor compacte poroase cu densitate scazuta dintr-un amestec fin maruntit de silice, facultativ fier si agent de reducere carbonifer |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4309216A (ro) |
| EP (1) | EP0036919A1 (ro) |
| JP (1) | JPS56140022A (ro) |
| KR (1) | KR830004148A (ro) |
| AU (1) | AU6426180A (ro) |
| BR (1) | BR8007297A (ro) |
| CA (1) | CA1157657A (ro) |
| ES (1) | ES498642A0 (ro) |
| FI (1) | FI803507A7 (ro) |
| NO (1) | NO803379L (ro) |
| PT (1) | PT72048B (ro) |
| RO (1) | RO81107B1 (ro) |
| YU (1) | YU283380A (ro) |
| ZA (1) | ZA806570B (ro) |
| ZW (1) | ZW25780A1 (ro) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117411A (en) * | 1982-03-29 | 1983-10-12 | British Steel Corp | Metallurgical additive briquettes |
| US4659374A (en) * | 1985-06-14 | 1987-04-21 | Dow Corning Corporation | Mixed binder systems for agglomerates |
| ATE115087T1 (de) * | 1988-03-11 | 1994-12-15 | Deere & Co | Herstellung von mangankarbid und eisen(ii)- legierungen. |
| CN1061991A (zh) * | 1990-10-23 | 1992-06-17 | 纽法姆能源有限公司 | 碳块 |
| CN101790591A (zh) * | 2007-08-07 | 2010-07-28 | 陶氏康宁公司 | 碳热还原金属氧化物生产金属和合金的方法 |
| CN102627281A (zh) * | 2012-04-27 | 2012-08-08 | 羊实 | 利用回收的硅细粉冶炼金属硅的方法 |
| CN102786054A (zh) * | 2012-09-07 | 2012-11-21 | 昆明冶金研究院 | 一种还原熔炼微硅粉的方法 |
| CN109279610B (zh) * | 2017-07-20 | 2020-05-19 | 中国石油化工股份有限公司 | 工业硅用石油焦的筛选方法、碳质还原剂和工业硅的冶炼方法 |
| BR112020025445A2 (pt) * | 2018-06-14 | 2021-03-16 | Carbon Technology Holdings, LLC | Composições de dióxido de silício de carbono poroso biogênico e métodos de produção e uso das mesmas |
| JP7388750B2 (ja) * | 2019-02-19 | 2023-11-29 | 有限会社南日本ウェルネス | 動植物摂取用水溶性ナノコロイドシリカの製造方法、及び動植物摂取用水溶性ナノコロイドシリカ |
| ES2935769T3 (es) * | 2019-04-03 | 2023-03-09 | Wacker Chemie Ag | Procedimiento para la producción de aglomerados que contienen silicio metálico |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153587A (en) * | 1957-06-06 | 1964-10-20 | United States Steel Corp | Method and apparatus for controlling volatile-forming constituents |
| US3215522A (en) * | 1960-11-22 | 1965-11-02 | Union Carbide Corp | Silicon metal production |
| ES316901A1 (es) * | 1964-12-23 | 1966-04-01 | Cerro Corp | Procedimiento para descargar cantidades determinadas de materia en particulas |
| DE1483150C3 (de) * | 1965-10-08 | 1974-07-04 | Heinrich Koppers Gmbh, 4300 Essen | Verfahren zur Sinterung oder sonstigen Wärmebehandlung von feinkörnigen Stoffen |
| BE759122A (fr) * | 1969-11-19 | 1971-05-18 | Union Carbide Corp | Procede et charge de production de silicium au four a arc electrique par reduction carbothermique de silice |
| US3704114A (en) * | 1971-03-17 | 1972-11-28 | Union Carbide Corp | Process and furnace charge for use in the production of ferrosilicon alloys |
| US3836354A (en) * | 1971-06-25 | 1974-09-17 | F Wienert | Production of pellets |
| DE2401217A1 (de) * | 1974-01-11 | 1975-07-17 | Heinz Hoelter | Verfahren zur herstellung von ferrumsilizium und/oder siliziummetall |
-
1980
- 1980-03-26 US US06/134,205 patent/US4309216A/en not_active Expired - Lifetime
- 1980-10-24 ZA ZA00806570A patent/ZA806570B/xx unknown
- 1980-10-28 ZW ZW257/80A patent/ZW25780A1/xx unknown
- 1980-10-31 JP JP15234180A patent/JPS56140022A/ja active Pending
- 1980-10-31 CA CA000363746A patent/CA1157657A/en not_active Expired
- 1980-11-06 YU YU02833/80A patent/YU283380A/xx unknown
- 1980-11-10 FI FI803507A patent/FI803507A7/fi not_active Application Discontinuation
- 1980-11-10 NO NO803379A patent/NO803379L/no unknown
- 1980-11-10 BR BR8007297A patent/BR8007297A/pt unknown
- 1980-11-11 RO RO102561A patent/RO81107B1/ro unknown
- 1980-11-11 PT PT72048A patent/PT72048B/pt unknown
- 1980-11-11 EP EP80304013A patent/EP0036919A1/en not_active Withdrawn
- 1980-11-11 AU AU64261/80A patent/AU6426180A/en not_active Abandoned
- 1980-11-18 KR KR1019800004415A patent/KR830004148A/ko active Pending
-
1981
- 1981-01-20 ES ES498642A patent/ES498642A0/es active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NO803379L (no) | 1981-09-28 |
| ZW25780A1 (en) | 1981-01-14 |
| US4309216A (en) | 1982-01-05 |
| ES8201215A1 (es) | 1981-12-01 |
| FI803507L (fi) | 1981-09-27 |
| PT72048A (en) | 1980-12-01 |
| FI803507A7 (fi) | 1981-09-27 |
| CA1157657A (en) | 1983-11-29 |
| KR830004148A (ko) | 1983-07-06 |
| ES498642A0 (es) | 1981-12-01 |
| BR8007297A (pt) | 1982-06-22 |
| JPS56140022A (en) | 1981-11-02 |
| PT72048B (en) | 1981-09-24 |
| EP0036919A1 (en) | 1981-10-07 |
| AU6426180A (en) | 1981-10-01 |
| YU283380A (en) | 1983-12-31 |
| ZA806570B (en) | 1981-10-28 |
| RO81107A2 (ro) | 1983-04-29 |
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