OA12953A - Procédé d'attaque de la bauxite a améliorant la filtrabilité des boues en sortie d'attaque. - Google Patents
Procédé d'attaque de la bauxite a améliorant la filtrabilité des boues en sortie d'attaque. Download PDFInfo
- Publication number
- OA12953A OA12953A OA1200500130A OA1200500130A OA12953A OA 12953 A OA12953 A OA 12953A OA 1200500130 A OA1200500130 A OA 1200500130A OA 1200500130 A OA1200500130 A OA 1200500130A OA 12953 A OA12953 A OA 12953A
- Authority
- OA
- OAPI
- Prior art keywords
- bauxite
- temperature
- alkaline solution
- attack
- suspension
- Prior art date
Links
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000008569 process Effects 0.000 title claims abstract description 14
- 239000010802 sludge Substances 0.000 title description 8
- 239000012670 alkaline solution Substances 0.000 claims abstract description 21
- 150000004645 aluminates Chemical class 0.000 claims abstract description 14
- 238000009835 boiling Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000004131 Bayer process Methods 0.000 claims abstract description 8
- 239000000725 suspension Substances 0.000 claims description 43
- 238000005530 etching Methods 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 5
- 238000001238 wet grinding Methods 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 16
- 230000029087 digestion Effects 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 238000001914 filtration Methods 0.000 description 16
- 239000003518 caustics Substances 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 9
- 150000004684 trihydrates Chemical class 0.000 description 8
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 7
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 6
- 229910001679 gibbsite Inorganic materials 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 229910001388 sodium aluminate Inorganic materials 0.000 description 5
- 229910001593 boehmite Inorganic materials 0.000 description 4
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- RYYVLZVUVIJVGH-UHFFFAOYSA-N caffeine Chemical compound CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229920002307 Dextran Polymers 0.000 description 1
- LPHGQDQBBGAPDZ-UHFFFAOYSA-N Isocaffeine Natural products CN1C(=O)N(C)C(=O)C2=C1N(C)C=N2 LPHGQDQBBGAPDZ-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- RREGISFBPQOLTM-UHFFFAOYSA-N alumane;trihydrate Chemical compound O.O.O.[AlH3] RREGISFBPQOLTM-UHFFFAOYSA-N 0.000 description 1
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 229960001948 caffeine Drugs 0.000 description 1
- VJEONQKOZGKCAK-UHFFFAOYSA-N caffeine Natural products CN1C(=O)N(C)C(=O)C2=C1C=CN2C VJEONQKOZGKCAK-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004460 silage Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 210000001550 testis Anatomy 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910001845 yogo sapphire 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
- C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
- C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
- C01F7/062—Digestion
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Nutrition Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Filtration Of Liquid (AREA)
- Fats And Perfumes (AREA)
- Looms (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Saccharide Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0213408A FR2846319B1 (fr) | 2002-10-25 | 2002-10-25 | Procede d'attaque de la bauxite ameliorant la filtrabilite des boues en sortie d'attaque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| OA12953A true OA12953A (fr) | 2006-10-13 |
Family
ID=32088297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| OA1200500130A OA12953A (fr) | 2002-10-25 | 2003-10-21 | Procédé d'attaque de la bauxite a améliorant la filtrabilité des boues en sortie d'attaque. |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US7658896B2 (de) |
| EP (1) | EP1558525B1 (de) |
| CN (1) | CN1319861C (de) |
| AT (1) | ATE360600T1 (de) |
| AU (1) | AU2003285414B2 (de) |
| BR (1) | BR0315592B1 (de) |
| DE (1) | DE60313482D1 (de) |
| ES (1) | ES2285217T3 (de) |
| FR (1) | FR2846319B1 (de) |
| OA (1) | OA12953A (de) |
| RU (1) | RU2328446C2 (de) |
| UA (1) | UA79513C2 (de) |
| WO (1) | WO2004039729A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU697381B2 (en) * | 1994-06-07 | 1998-10-01 | Hatch Pty Ltd | Improved multi-cell heating system |
| FR2934852B1 (fr) * | 2008-08-06 | 2011-06-24 | Alcan Int Ltd | Perfectionnement au procede bayer de production de trihydrate d'alumine, ledit procede comprenant une etape dans laquelle la liqueur sursaturee est filtree a haute temperature avant decomposition |
| WO2012003578A1 (en) * | 2010-07-09 | 2012-01-12 | Rio Tinto Alcan International Limited | Flocculent addition and mixing rate for separating a slurry |
| CN102580362B (zh) * | 2011-01-14 | 2014-05-28 | 北京化工大学 | 化学絮凝法分离硝酸磷肥生产中酸不溶物的工艺流程 |
| EP2886178A1 (de) * | 2013-12-20 | 2015-06-24 | Rio Tinto Alcan International Limited | Verfahren und Anlage zur Herstellung von Aluminiumtrihydrat mittels alkalischem Abbau von Bauxiterz |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU121441A1 (ru) * | 1958-03-12 | 1958-11-30 | В.А. Бернштейн | Способ получени глинозема высокотемпературной обработкой бокситов раствором щелочи |
| US3002809A (en) * | 1959-06-22 | 1961-10-03 | Nalco Chemical Co | Method of manufacture of high purity sodium aluminate |
| US4446117A (en) * | 1983-04-04 | 1984-05-01 | Alumina Development Corporation | Double digestion system to reduce formation of ferrous iron |
| US4511542A (en) * | 1984-05-24 | 1985-04-16 | Kaiser Aluminum & Chemical Corporation | Bayer process production of alumina hydrate |
| CN1037493A (zh) * | 1988-05-11 | 1989-11-29 | 建筑工程公司 | 氧化铝生产过程中沉积红泥的除害方法 |
| GB8906500D0 (en) * | 1989-03-21 | 1989-05-04 | Shell Int Research | Process for the production of aluminium hydroxide from bauxite |
| OA09268A (en) * | 1989-10-13 | 1992-08-31 | Alcan Int Ltd | Process and apparatus for decantation of suspensions. |
| US5545384A (en) * | 1991-10-30 | 1996-08-13 | Sumitomo Chemical Co., Ltd. | Process for production of aluminum hydroxide from ore containing alumina |
| BR9306780A (pt) * | 1992-07-24 | 1998-12-08 | Comalco Alu | Processo para extração de alumina a partir da bauxita |
| AUPM761194A0 (en) * | 1994-08-23 | 1994-09-15 | Comalco Aluminium Limited | Improved process for the extraction of alumina from bauxite |
| FR2732332B1 (fr) * | 1995-03-31 | 1997-05-09 | Pechiney Aluminium | Procede de traitement de bauxite a trihydrate d'alumine a basse teneur en silice reactive |
| CN1049874C (zh) * | 1996-06-28 | 2000-03-01 | 中国长城铝业公司 | 一种铝土矿浆预脱硅工艺方法 |
| AUPO376296A0 (en) * | 1996-11-20 | 1996-12-12 | Comalco Aluminium Limited | Removal of silica from bauxite |
| FR2758544B1 (fr) * | 1997-01-22 | 1999-02-26 | Pechiney Aluminium | Procede ameliore de traitement de bauxites riches en monohydrate d'alumine |
| FR2771081B1 (fr) * | 1997-11-17 | 1999-12-17 | Pechiney Aluminium | Production de trihydrate d'alumine avec controle separe de la teneur en sodium et de la granulometrie |
| US6086771A (en) * | 1997-12-12 | 2000-07-11 | Nalco Chemical Company | Water continuous emulsion polymers for improving scale control in the bayer process |
| AUPP370498A0 (en) * | 1998-05-25 | 1998-06-18 | Nalco Chemical Company | Dextran, starch and flocculant combination for improving red mud clarification |
| US6086834A (en) * | 1998-06-19 | 2000-07-11 | Alcan International Limited | Process for the removal of silica from an alkaline solution containing sodium aluminate |
| US6528028B2 (en) * | 1999-12-28 | 2003-03-04 | Showa Denko K.K. | Process for treating bauxite in which a desilication product and an insoluble residure are separately precipitated |
| RU2193524C2 (ru) * | 2000-08-08 | 2002-11-27 | Открытое акционерное общество "Богословский алюминиевый завод" | Способ выщелачивания боксита |
| FR2834979B1 (fr) * | 2002-01-21 | 2004-02-20 | Pechiney Aluminium | Solubilisation des carbonates par recyclage des condensats lors de l'attaque sous pression des bauxites a monohydrates |
-
2002
- 2002-10-25 FR FR0213408A patent/FR2846319B1/fr not_active Expired - Fee Related
-
2003
- 2003-10-21 CN CNB2003801020411A patent/CN1319861C/zh not_active Expired - Fee Related
- 2003-10-21 RU RU2005115860/15A patent/RU2328446C2/ru not_active IP Right Cessation
- 2003-10-21 OA OA1200500130A patent/OA12953A/fr unknown
- 2003-10-21 US US10/530,352 patent/US7658896B2/en not_active Expired - Fee Related
- 2003-10-21 UA UAA200504941A patent/UA79513C2/uk unknown
- 2003-10-21 EP EP03778413A patent/EP1558525B1/de not_active Expired - Lifetime
- 2003-10-21 AT AT03778413T patent/ATE360600T1/de not_active IP Right Cessation
- 2003-10-21 WO PCT/FR2003/003104 patent/WO2004039729A1/fr not_active Ceased
- 2003-10-21 AU AU2003285414A patent/AU2003285414B2/en not_active Ceased
- 2003-10-21 ES ES03778413T patent/ES2285217T3/es not_active Expired - Lifetime
- 2003-10-21 BR BRPI0315592-7A patent/BR0315592B1/pt not_active IP Right Cessation
- 2003-10-21 DE DE60313482T patent/DE60313482D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| UA79513C2 (en) | 2007-06-25 |
| RU2328446C2 (ru) | 2008-07-10 |
| AU2003285414A1 (en) | 2004-05-25 |
| US20060051268A1 (en) | 2006-03-09 |
| WO2004039729A1 (fr) | 2004-05-13 |
| AU2003285414B2 (en) | 2007-12-20 |
| CN1708457A (zh) | 2005-12-14 |
| RU2005115860A (ru) | 2006-01-20 |
| EP1558525B1 (de) | 2007-04-25 |
| EP1558525A1 (de) | 2005-08-03 |
| ES2285217T3 (es) | 2007-11-16 |
| ATE360600T1 (de) | 2007-05-15 |
| BR0315592B1 (pt) | 2011-11-16 |
| CN1319861C (zh) | 2007-06-06 |
| DE60313482D1 (de) | 2007-06-06 |
| US7658896B2 (en) | 2010-02-09 |
| FR2846319B1 (fr) | 2004-12-10 |
| BR0315592A (pt) | 2005-09-06 |
| FR2846319A1 (fr) | 2004-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2408719A1 (de) | Zusammensetzung zur konditionierung von schlamm | |
| EP0203873B1 (de) | Herstellung von Aluminiumoxid aus Bauxit enthaltendem Gibbsit mit niedrigem Gehalt an reaktivem Siliciumoxid | |
| EP1558525B1 (de) | Verfahren zur verbesserung der filtrierbarkeit von bauxit | |
| EP4474351A1 (de) | Verfahren zur behandlung von bauxit | |
| EP2321224B1 (de) | Verbesserung des bayer-verfahrens zur herstellung von aluminiumtrihydrat mit einem schritt, bei dem man die übersättigte lauge bei hoher temperatur vor der zersetzung filtriert | |
| CN104870373B (zh) | 改进拜耳工艺中的红泥分离和洗涤的化学处理法 | |
| WO1996019410A1 (fr) | Procede d'elimination du fer dans les liqueurs d'aluminate de sodium issues de l'attaque alcaline de bauxite a monohydrate d'alumine | |
| EP0782544B1 (de) | Flüssige reinigungszusammensetzung | |
| FR2598701A1 (fr) | Procede et dispositif de decomposition de liqueur d'aluminate de sodium pour la production d'alumine | |
| EP1791788B1 (de) | Verbessertes bayer-verfahren zur herstellung von aluminiumtrihydrat hinsichtlich trennung von aluminatlauge und unlöslichen rückständen | |
| FR2538799A1 (fr) | Procede et appareillage pour la recuperation des sels de chrome dans les eaux de reflux de tannerie | |
| AU2014369375A1 (en) | Settler for decanting mineral slurries and method for separating clarified liquid from thickened slurry of said mineral slurries | |
| CN110981156A (zh) | 一种基于碱改性的油泥三相分离方法 | |
| EP0652181B1 (de) | Verfahren zur Behandlung von einer Mischung von Aluminiumoxydtrihydrat und Aluminiumoxydmonohydrat enthaltenden Bauxiten | |
| FR2472603A1 (fr) | Procede perfectionne pour separer des matieres solides d'avec des liquides obtenues a partir du charbon | |
| EP1791792B2 (de) | Verwendung von teilweise vor-hydratiertem kalziumoxid zum trennen einer mischung aus festen/flüssigen stoffen, verfahren zur behandlung des durch besagtes verfahren entstandenen schlamms | |
| EP0056117B1 (de) | Verfahren zum Behandeln einer Flüssigkeit | |
| FR3081859A1 (fr) | Methode et installation de traitement d'un effluent industriel charge en aluminium a l'aide de co2 | |
| EP0739309B1 (de) | Verfahren zur behandlung von aluminiumtrihydrat enthaltendem bauxit | |
| WO2005035445A2 (fr) | Procede pour reduire l'encrassement des echangeurs thermiques d'un circuit bayer | |
| BE403259A (de) | ||
| FR2619727A1 (fr) | Procede de filtration membranaire d'une solution contenant des particules ioniques de faibles dimensions |