NO802257L - Fremgangsmaate ved fremstilling av aluminiumoxyd - Google Patents
Fremgangsmaate ved fremstilling av aluminiumoxydInfo
- Publication number
- NO802257L NO802257L NO802257A NO802257A NO802257L NO 802257 L NO802257 L NO 802257L NO 802257 A NO802257 A NO 802257A NO 802257 A NO802257 A NO 802257A NO 802257 L NO802257 L NO 802257L
- Authority
- NO
- Norway
- Prior art keywords
- aluminum
- aluminum oxide
- alkali
- sodium
- reagent
- Prior art date
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 19
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 18
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 16
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 15
- 235000012211 aluminium silicate Nutrition 0.000 claims description 15
- 239000005995 Aluminium silicate Substances 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 12
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 10
- 238000001354 calcination Methods 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- -1 aluminum silicates Chemical class 0.000 claims description 9
- 239000003153 chemical reaction reagent Substances 0.000 claims description 9
- 239000004927 clay Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 150000004645 aluminates Chemical class 0.000 claims description 8
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- FOJJCOHOLNJIHE-UHFFFAOYSA-N aluminum;azane Chemical compound N.[Al+3] FOJJCOHOLNJIHE-UHFFFAOYSA-N 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 claims 1
- 239000000243 solution Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Substances [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 229910001570 bauxite Inorganic materials 0.000 description 6
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L sodium sulphate Substances [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000007928 solubilization Effects 0.000 description 4
- 238000005063 solubilization Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 3
- 239000001120 potassium sulphate Substances 0.000 description 3
- 235000011151 potassium sulphates Nutrition 0.000 description 3
- GJPYYNMJTJNYTO-UHFFFAOYSA-J sodium aluminium sulfate Chemical compound [Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GJPYYNMJTJNYTO-UHFFFAOYSA-J 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- BPLYVSYSBPLDOA-GYOJGHLZSA-N n-[(2r,3r)-1,3-dihydroxyoctadecan-2-yl]tetracosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCCCC(=O)N[C@H](CO)[C@H](O)CCCCCCCCCCCCCCC BPLYVSYSBPLDOA-GYOJGHLZSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- KVOIJEARBNBHHP-UHFFFAOYSA-N potassium;oxido(oxo)alumane Chemical compound [K+].[O-][Al]=O KVOIJEARBNBHHP-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 238000005406 washing Methods 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
- C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
- C01F7/26—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts with sulfuric acids or sulfates
-
- 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
- C01F7/20—Preparation of aluminium oxide or hydroxide from aluminous ores using acids or salts
-
- 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
- C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES482881A ES482881A1 (es) | 1979-07-27 | 1979-07-27 | Metodo de obtencion de alumina a partir de arcillas y sili- catos aluminicos en general |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO802257L true NO802257L (no) | 1981-01-28 |
Family
ID=8478726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO802257A NO802257L (no) | 1979-07-27 | 1980-07-25 | Fremgangsmaate ved fremstilling av aluminiumoxyd |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4342729A (es) |
| EP (1) | EP0024131B1 (es) |
| AR (1) | AR223887A1 (es) |
| AT (1) | ATE6764T1 (es) |
| CA (1) | CA1162029A (es) |
| DE (1) | DE3067132D1 (es) |
| DK (1) | DK323180A (es) |
| ES (1) | ES482881A1 (es) |
| IN (1) | IN154402B (es) |
| NO (1) | NO802257L (es) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3249234T1 (de) * | 1981-12-04 | 1984-02-09 | Nord Kaolin Co., 45459 Dayton, Ohio | Verminderung der Schlickerviskosität von kaolinitischen Tonen |
| US4477422A (en) * | 1981-12-04 | 1984-10-16 | Ginn Michael W | Reducing slurry viscosity of kaolinitic clays |
| ES8406985A1 (es) * | 1983-05-13 | 1984-09-01 | Consejo Superior Investigacion | Procedimiento continuo de obtencion de compuestos de aluminio a partir de silicatos aluminicos y otros minerales de alu-minio. |
| US4491514A (en) * | 1984-04-16 | 1985-01-01 | Exxon Research & Engineering Co. | Process for beneficiating oil-shale |
| US4490238A (en) * | 1984-04-16 | 1984-12-25 | Exxon Research And Engineering Co. | Process for beneficiating oil-shale |
| US4576707A (en) * | 1984-04-16 | 1986-03-18 | Exxon Research And Engineering Co. | Process for beneficiating coal |
| US4491513A (en) * | 1984-04-16 | 1985-01-01 | Exxon Research & Engineering Co. | Process for beneficiating oil-shale |
| US4695436A (en) * | 1985-01-16 | 1987-09-22 | Toth Aluminum Corporation | Process for manufacturing high purity metal chlorides |
| AUPO264096A0 (en) * | 1996-09-30 | 1996-10-24 | Mclaughlin Geosurveys Pty Ltd. | Value improvement of clays |
| CN1054108C (zh) * | 1997-02-25 | 2000-07-05 | 中国科学院化工冶金研究所 | 从低品位含铝矿石中提取氧化铝的方法 |
| CN1102126C (zh) * | 1998-08-07 | 2003-02-26 | 张其春 | 用粘土矿物制备白炭黑的煅烧转化反应工艺 |
| CN100572279C (zh) * | 2007-07-12 | 2009-12-23 | 中国铝业股份有限公司 | 一种从粉煤灰中提取氧化铝的方法 |
| CN102515221A (zh) * | 2011-12-02 | 2012-06-27 | 吉林大学 | 从粉煤灰或煤矸石中提取氧化铝和非晶态二氧化硅的方法 |
| CN104556168B (zh) * | 2014-12-22 | 2017-04-05 | 中国神华能源股份有限公司 | 一种将粉煤灰中氧化铝活化溶出的方法 |
| CN110357116A (zh) * | 2018-03-26 | 2019-10-22 | 骆曦明 | 一种钾钠长石除去钾、钠的方法 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US914187A (en) * | 1906-08-07 | 1909-03-02 | Erik Ludvig Rinman | Process of manufacturing aluminum compounds. |
| US957848A (en) * | 1909-05-29 | 1910-05-10 | Philip A Emanuel | Process of making sodium aluminate. |
| US1160431A (en) * | 1912-08-27 | 1915-11-16 | United Aluminum Ingot Company | Process for producing aluminum from clay, kaolin, and other aluminum silicates. |
| GB139005A (en) * | 1919-02-26 | 1920-02-26 | Kennedy Joseph Previte Orton | An improvement in the manufacture of alumina |
| US1752599A (en) * | 1925-06-27 | 1930-04-01 | Kjellgren Bengt Ragnar Fritiof | Method of treating aluminous materials for the production of aluminum sulphate and alumina therefrom |
| US1675157A (en) * | 1926-03-17 | 1928-06-26 | Brown Charles Mccombie | Process for the production of alumina |
| US1681921A (en) * | 1927-01-26 | 1928-08-28 | William G Bjorkstedt | Method of treating aluminum-containing minerals |
| US2160148A (en) * | 1935-04-12 | 1939-05-30 | Hunyady Istvan | Treatment of aluminum ores |
| US2250186A (en) * | 1938-02-02 | 1941-07-22 | Ig Farbenindustrie Ag | Manufacture of cement, alkali metal aluminate, and sulphur dioxide |
| US2375977A (en) * | 1939-12-01 | 1945-05-15 | English Clays Lovering Pochin | Preparation of alumina from clay |
| US2388983A (en) * | 1944-06-03 | 1945-11-13 | Georgia Kaolin Co | Procedure of extracting aluminum hydrate from clay |
| BE567784A (es) * | 1957-05-21 | |||
| US3594122A (en) * | 1969-07-28 | 1971-07-20 | Ethyl C Fornes | Process for extraction of alumina from alumina-containing ore |
| US3839536A (en) * | 1971-07-21 | 1974-10-01 | Mitsubishi Chem Ind | Process for preparing pure hydrated alumina |
| DD99350A1 (es) * | 1972-02-22 | 1973-08-13 | ||
| GB1547420A (en) * | 1975-09-30 | 1979-06-20 | Financial Mining Ind Ship | Process for the benefication of mineral alunite |
-
1979
- 1979-07-27 ES ES482881A patent/ES482881A1/es not_active Expired
-
1980
- 1980-07-17 US US06/169,903 patent/US4342729A/en not_active Expired - Lifetime
- 1980-07-18 IN IN528/DEL/80A patent/IN154402B/en unknown
- 1980-07-24 EP EP80302522A patent/EP0024131B1/en not_active Expired
- 1980-07-24 AT AT80302522T patent/ATE6764T1/de not_active IP Right Cessation
- 1980-07-24 DE DE8080302522T patent/DE3067132D1/de not_active Expired
- 1980-07-25 DK DK323180A patent/DK323180A/da not_active Application Discontinuation
- 1980-07-25 AR AR281927A patent/AR223887A1/es active
- 1980-07-25 NO NO802257A patent/NO802257L/no unknown
- 1980-07-25 CA CA000356984A patent/CA1162029A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IN154402B (es) | 1984-10-27 |
| DK323180A (da) | 1981-01-27 |
| EP0024131B1 (en) | 1984-03-21 |
| DE3067132D1 (en) | 1984-04-26 |
| US4342729A (en) | 1982-08-03 |
| ES482881A1 (es) | 1980-04-01 |
| EP0024131A1 (en) | 1981-02-25 |
| ATE6764T1 (de) | 1984-04-15 |
| AR223887A1 (es) | 1981-09-30 |
| CA1162029A (en) | 1984-02-14 |
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