ZA200004444B - Method of producing highly pure aluminium primary base metal. - Google Patents
Method of producing highly pure aluminium primary base metal. Download PDFInfo
- Publication number
- ZA200004444B ZA200004444B ZA200004444A ZA200004444A ZA200004444B ZA 200004444 B ZA200004444 B ZA 200004444B ZA 200004444 A ZA200004444 A ZA 200004444A ZA 200004444 A ZA200004444 A ZA 200004444A ZA 200004444 B ZA200004444 B ZA 200004444B
- Authority
- ZA
- South Africa
- Prior art keywords
- alumina
- anode
- highly pure
- pitch
- base metal
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 39
- 239000010953 base metal Substances 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 24
- 239000004411 aluminium Substances 0.000 title 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 70
- 239000000571 coke Substances 0.000 claims description 32
- 238000005868 electrolysis reaction Methods 0.000 claims description 31
- 238000004140 cleaning Methods 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 26
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 20
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 18
- 238000001354 calcination Methods 0.000 claims description 13
- 239000003575 carbonaceous material Substances 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 10
- 230000000996 additive effect Effects 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 229910001570 bauxite Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 239000012535 impurity Substances 0.000 description 39
- 239000002253 acid Substances 0.000 description 22
- 239000011295 pitch Substances 0.000 description 20
- 239000011280 coal tar Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000010405 anode material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 7
- 229910001610 cryolite Inorganic materials 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000011305 binder pitch Substances 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 239000011271 tar pitch Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000011294 coal tar pitch Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 150000002222 fluorine compounds Chemical class 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 3
- 239000011269 tar Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000006253 pitch coke Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 101100256077 Caenorhabditis elegans aos-1 gene Proteins 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- GBROPGWFBFCKAG-UHFFFAOYSA-N benzochrysene Natural products C1=CC2=C3C=CC=CC3=CC=C2C2=C1C1=CC=CC=C1C=C2 GBROPGWFBFCKAG-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000011329 calcined coke Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005203 dry scrubbing Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/18—Electrolytes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35864398 | 1998-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200004444B true ZA200004444B (en) | 2001-02-05 |
Family
ID=18460379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200004444A ZA200004444B (en) | 1998-12-17 | 2000-08-28 | Method of producing highly pure aluminium primary base metal. |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6478945B1 (is) |
| EP (1) | EP1072694A4 (is) |
| JP (1) | JP3758501B2 (is) |
| CN (1) | CN1198971C (is) |
| AU (1) | AU744234B2 (is) |
| BR (1) | BR9909204A (is) |
| CA (1) | CA2321000C (is) |
| ID (1) | ID25503A (is) |
| IS (1) | IS5587A (is) |
| NO (1) | NO20004097L (is) |
| NZ (1) | NZ506372A (is) |
| RU (1) | RU2205900C2 (is) |
| WO (1) | WO2000036186A1 (is) |
| ZA (1) | ZA200004444B (is) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2495162C (en) * | 2002-08-05 | 2010-07-27 | Alcoa Inc. | Methods and apparatus for reducing sulfur impurities and improving current efficiencies of inert anode aluminum production cells |
| CN1332069C (zh) * | 2003-12-06 | 2007-08-15 | 包头铝业股份有限公司 | 用冰晶石——氧化铝熔盐电解法生产纯度高的铝的方法 |
| CN102121121A (zh) * | 2010-01-07 | 2011-07-13 | 贵阳铝镁设计研究院 | 一种铝用阳极生产过程中对铁含量的工艺控制方法 |
| JP2011157606A (ja) * | 2010-02-02 | 2011-08-18 | Kobe Steel Ltd | 炭素陽極の製造方法 |
| CN104532300B (zh) * | 2014-12-26 | 2016-10-26 | 中南大学 | 一种电解制备铝硅合金的方法 |
| CN113481023B (zh) * | 2021-07-14 | 2022-09-16 | 大连理工大学 | 一种制备低灰生物质半焦的方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP175807C2 (is) | 1945-03-05 | 1947-10-23 | ||
| US2998375A (en) * | 1953-01-06 | 1961-08-29 | Kaiser Aluminium Chem Corp | Electrode of carbon material from bituminous coal and method of making the same |
| SU485971A1 (ru) * | 1972-07-18 | 1975-09-30 | Казахский политехнический институт им.В.И.Ленина | Спос обескремнивани гидрата окиси алюмини |
| US4072599A (en) * | 1975-08-28 | 1978-02-07 | Reynolds Metals Company | Carbon electrodes having stabilized binders derived from the entire organic fraction of bituminous coal |
| FR2338898A1 (fr) | 1976-01-20 | 1977-08-19 | Pechiney Aluminium | Procede d'obtention d'alumine pure a partir d'une matiere silico-alumineuse contenant du titane et depourvue de potassium |
| US4096097A (en) * | 1976-12-27 | 1978-06-20 | Mobil Oil Corporation | Method of producing high quality sponge coke or not to make shot coke |
| US4465659A (en) * | 1982-07-21 | 1984-08-14 | Atlantic Richfield Company | Aluminum production via the chlorination of partially calcined aluminum chloride hexahydrate |
| US4559215A (en) * | 1983-08-03 | 1985-12-17 | Atlantic Richfield Company | Production of anhydrous aluminum chloride from hydrated alumina |
| SU1247432A1 (ru) * | 1984-10-31 | 1986-07-30 | Красноярский Ордена Трудового Красного Знамени Институт Цветных Металлов Им.М.И.Калинина | Способ получени алюмини |
| FR2600675B1 (fr) * | 1986-06-24 | 1988-08-26 | Pechiney Aluminium | Procede de reglage de la teneur en brai des anodes destinees a la production d'aluminium par electrolyse |
| FR2639041B1 (fr) | 1988-11-14 | 1991-08-23 | Damont Jean Paul | Appareil de levage pour tracteur agricole |
-
1999
- 1999-09-09 JP JP2000588430A patent/JP3758501B2/ja not_active Expired - Fee Related
- 1999-09-09 NZ NZ506372A patent/NZ506372A/en not_active IP Right Cessation
- 1999-09-09 CA CA002321000A patent/CA2321000C/en not_active Expired - Fee Related
- 1999-09-09 WO PCT/JP1999/004907 patent/WO2000036186A1/ja not_active Ceased
- 1999-09-09 BR BR9909204-2A patent/BR9909204A/pt not_active Application Discontinuation
- 1999-09-09 CN CN99805128.4A patent/CN1198971C/zh not_active Expired - Fee Related
- 1999-09-09 RU RU2000123784/02A patent/RU2205900C2/ru not_active IP Right Cessation
- 1999-09-09 US US09/622,473 patent/US6478945B1/en not_active Expired - Fee Related
- 1999-09-09 EP EP99943241A patent/EP1072694A4/en not_active Withdrawn
- 1999-09-09 AU AU56482/99A patent/AU744234B2/en not_active Ceased
- 1999-09-09 ID IDW20001562A patent/ID25503A/id unknown
-
2000
- 2000-08-16 IS IS5587A patent/IS5587A/is unknown
- 2000-08-16 NO NO20004097A patent/NO20004097L/no not_active Application Discontinuation
- 2000-08-28 ZA ZA200004444A patent/ZA200004444B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO20004097D0 (no) | 2000-08-16 |
| NO20004097L (no) | 2000-10-10 |
| CN1297494A (zh) | 2001-05-30 |
| BR9909204A (pt) | 2000-11-14 |
| CA2321000A1 (en) | 2000-06-22 |
| NZ506372A (en) | 2002-06-28 |
| JP3758501B2 (ja) | 2006-03-22 |
| EP1072694A1 (en) | 2001-01-31 |
| WO2000036186A1 (fr) | 2000-06-22 |
| ID25503A (id) | 2000-10-05 |
| EP1072694A4 (en) | 2005-12-14 |
| RU2205900C2 (ru) | 2003-06-10 |
| CN1198971C (zh) | 2005-04-27 |
| US6478945B1 (en) | 2002-11-12 |
| AU5648299A (en) | 2000-07-03 |
| AU744234B2 (en) | 2002-02-21 |
| CA2321000C (en) | 2005-05-24 |
| IS5587A (is) | 2000-08-16 |
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