IE67071B1 - Process for the production of aluminium hydroxide from bauxite - Google Patents
Process for the production of aluminium hydroxide from bauxiteInfo
- Publication number
- IE67071B1 IE67071B1 IE102090A IE102090A IE67071B1 IE 67071 B1 IE67071 B1 IE 67071B1 IE 102090 A IE102090 A IE 102090A IE 102090 A IE102090 A IE 102090A IE 67071 B1 IE67071 B1 IE 67071B1
- Authority
- IE
- Ireland
- Prior art keywords
- process according
- digestion
- bauxite
- digestion step
- solids
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 118
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 106
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 title claims abstract description 34
- 229910021502 aluminium hydroxide Inorganic materials 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000029087 digestion Effects 0.000 claims abstract description 166
- 239000002002 slurry Substances 0.000 claims abstract description 51
- 239000007787 solid Substances 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 239000007791 liquid phase Substances 0.000 claims abstract description 46
- 239000003513 alkali Substances 0.000 claims abstract description 34
- 239000000047 product Substances 0.000 claims abstract description 34
- 239000003518 caustics Substances 0.000 claims abstract description 32
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 18
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical class [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 9
- 230000001376 precipitating effect Effects 0.000 claims abstract description 8
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 84
- 150000004684 trihydrates Chemical class 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 24
- 150000004682 monohydrates Chemical class 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 8
- 238000001238 wet grinding Methods 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims 1
- 244000046052 Phaseolus vulgaris Species 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 239000000203 mixture Substances 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 11
- 229910001388 sodium aluminate Inorganic materials 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000004131 Bayer process Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 7
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010935 polish filtration Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 240000005020 Acaciella glauca Species 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229940115440 aluminum sodium silicate Drugs 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011874 heated mixture Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000429 sodium aluminium silicate Substances 0.000 description 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- C01F7/0613—Pretreatment of the minerals, e.g. grinding
-
- 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)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898906500A GB8906500D0 (en) | 1989-03-21 | 1989-03-21 | Process for the production of aluminium hydroxide from bauxite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE901020L IE901020L (en) | 1990-09-21 |
| IE67071B1 true IE67071B1 (en) | 1996-02-21 |
Family
ID=10653750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE102090A IE67071B1 (en) | 1989-03-21 | 1990-03-20 | Process for the production of aluminium hydroxide from bauxite |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5869020A (OSRAM) |
| EP (1) | EP0389061B2 (OSRAM) |
| AU (1) | AU626997B2 (OSRAM) |
| CA (1) | CA2011860C (OSRAM) |
| ES (1) | ES2066952T5 (OSRAM) |
| GB (1) | GB8906500D0 (OSRAM) |
| GR (1) | GR3015541T3 (OSRAM) |
| HU (1) | HU209267B (OSRAM) |
| IE (1) | IE67071B1 (OSRAM) |
| IN (1) | IN177258B (OSRAM) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9209313D0 (en) * | 1992-04-30 | 1992-06-17 | Alcan Int Ltd | Process for the extraction of alumina |
| BR9306780A (pt) * | 1992-07-24 | 1998-12-08 | Comalco Alu | Processo para extração de alumina a partir da bauxita |
| FR2715153B1 (fr) * | 1994-01-18 | 1996-03-01 | Pechiney Aluminium | Procédé de traitement de bauxite à trihydrate d'alumine. |
| AUPM761194A0 (en) * | 1994-08-23 | 1994-09-15 | Comalco Aluminium Limited | Improved process for the extraction of alumina from bauxite |
| RU2152904C2 (ru) * | 1997-08-11 | 2000-07-20 | Акционерное общество "Алюминий Казахстана" | Способ получения глинозема из высокосернистого и высококарбонатного боксита |
| CA2352953C (en) * | 1998-09-25 | 2005-11-15 | Steven Philip Rosenberg | Improved bayer causticisation |
| JP2000211919A (ja) * | 1998-11-16 | 2000-08-02 | Sumitomo Chem Co Ltd | アルミナ含有鉱石からの水酸化アルミニウムの製造方法 |
| FR2846319B1 (fr) * | 2002-10-25 | 2004-12-10 | Pechiney Aluminium | Procede d'attaque de la bauxite ameliorant la filtrabilite des boues en sortie d'attaque |
| FR2875495B1 (fr) * | 2004-09-21 | 2006-10-27 | Aluminium Pechiney Soc Par Act | Perfectionnement au procede bayer de fabrication de trihydrate d'alumine, ledit perfectionnement portant sur la separation de la liqueur d'aluminate et des residus insolubles |
| CN101746795B (zh) * | 2008-12-02 | 2012-04-25 | 中国科学院过程工程研究所 | 一种从铝土矿生产氧化铝的方法 |
| RU2611871C2 (ru) * | 2015-05-20 | 2017-03-01 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | Способ обогащения пиритизированных высококремнистых маложелезистых бокситов |
| WO2018148308A1 (en) * | 2017-02-07 | 2018-08-16 | Kemira Oyj | Selective polysaccharide flocculants for bauxite ore beneficiation |
| CN106987280A (zh) * | 2017-04-24 | 2017-07-28 | 北京神源环保有限公司 | 一种流化床垃圾热解的系统及方法 |
| EP3656881B1 (en) * | 2018-11-26 | 2023-06-14 | Alunorte -Alumina do Norte do Brasil S.A. | Process and system for producing alumina from bauxite ore |
| CN111732116A (zh) * | 2020-08-14 | 2020-10-02 | 中铝山东工程技术有限公司 | 一种氢氧化铝重溶系统 |
| CN120717495B (zh) * | 2025-09-04 | 2025-12-16 | 中铝山东有限公司 | 一种提高拜耳法生产氧化铝经济性的方法 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2701751A (en) * | 1949-08-11 | 1955-02-08 | Kaiser Aluminium Chem Corp | Process for production of alumina |
| US2701752A (en) * | 1951-12-19 | 1955-02-08 | Kaiser Aluminium Chem Corp | Process for the production of alumina |
| US3413087A (en) * | 1964-03-13 | 1968-11-26 | Reynolds Metals Co | Method for extracting alumina from its ores |
| US3481705A (en) * | 1964-08-31 | 1969-12-02 | Kaiser Aluminium Chem Corp | Predigestion of low-silica bauxite |
| FR1506516A (fr) * | 1966-11-08 | 1967-12-22 | Reynolds Metals Co | Perfectionnements aux procédés pour l'extraction d'alumine à partir de minerais alumineux |
| FR1523302A (fr) * | 1967-03-20 | 1968-05-03 | Pechiney Prod Chimiques Sa | Procédé perfectionné d'attaque continue de la bauxite par une solution de soude caustique et d'aluminate de sodium |
| US3681013A (en) * | 1970-02-02 | 1972-08-01 | Aluminum Co Of America | Extraction of alumina from bauxite |
| AU474596B2 (en) * | 1972-04-03 | 1974-07-25 | Kaiser Aluminum & Chemical Corporation | Improvements in the bayer process production of alumina |
| US3868442A (en) * | 1972-09-05 | 1975-02-25 | Aluminum Co Of America | Alumina extraction |
| JPS5086499A (OSRAM) * | 1973-12-06 | 1975-07-11 | ||
| JPS5319199A (en) * | 1976-08-06 | 1978-02-22 | Sumitomo Chem Co Ltd | Extracting method for alumina from alumina-containing ore |
| US4324769A (en) * | 1979-10-01 | 1982-04-13 | Alumina Development Corporation | Extraction and production of alumina containing less than 0.03 percent iron oxide |
| JPS57145029A (en) * | 1981-02-27 | 1982-09-07 | Sumitomo Alum Smelt Co Ltd | Extracting method of alumina from mixed type bauxite |
| US4446117A (en) * | 1983-04-04 | 1984-05-01 | Alumina Development Corporation | Double digestion system to reduce formation of ferrous iron |
| FR2582640B1 (fr) * | 1985-05-29 | 1987-07-31 | Pechiney Aluminium | Procede de production continue d'alumine a partir de bauxites a monohydrates, selon le procede bayer |
| US4661328A (en) * | 1985-06-19 | 1987-04-28 | Aluminum Company Of America | Alumina from high silica bauxite |
| US4614641A (en) * | 1985-06-19 | 1986-09-30 | Aluminum Company Of America | Parallel purification of alumina with physical pretreatment |
-
1989
- 1989-03-21 GB GB898906500A patent/GB8906500D0/en active Pending
-
1990
- 1990-03-06 IN IN212DE1990 patent/IN177258B/en unknown
- 1990-03-09 CA CA002011860A patent/CA2011860C/en not_active Expired - Fee Related
- 1990-03-15 AU AU51414/90A patent/AU626997B2/en not_active Expired
- 1990-03-20 EP EP90200664A patent/EP0389061B2/en not_active Expired - Lifetime
- 1990-03-20 HU HU901613A patent/HU209267B/hu unknown
- 1990-03-20 ES ES90200664T patent/ES2066952T5/es not_active Expired - Lifetime
- 1990-03-20 IE IE102090A patent/IE67071B1/en not_active IP Right Cessation
-
1992
- 1992-04-22 US US07/873,715 patent/US5869020A/en not_active Expired - Fee Related
-
1995
- 1995-03-23 GR GR950400675T patent/GR3015541T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0389061B1 (en) | 1995-01-11 |
| IE901020L (en) | 1990-09-21 |
| HU209267B (en) | 1994-04-28 |
| US5869020A (en) | 1999-02-09 |
| HUT54320A (en) | 1991-02-28 |
| GR3015541T3 (en) | 1995-06-30 |
| AU5141490A (en) | 1990-09-27 |
| ES2066952T3 (es) | 1995-03-16 |
| IN177258B (OSRAM) | 1996-12-14 |
| CA2011860C (en) | 2000-02-22 |
| HU901613D0 (en) | 1990-06-28 |
| CA2011860A1 (en) | 1990-09-21 |
| ES2066952T5 (es) | 2002-04-01 |
| AU626997B2 (en) | 1992-08-13 |
| EP0389061B2 (en) | 2002-01-02 |
| EP0389061A3 (en) | 1992-03-18 |
| GB8906500D0 (en) | 1989-05-04 |
| EP0389061A2 (en) | 1990-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK9A | Patent expired |