NO842312L - Fremgangsmaate ved fremstilling av siliciumdioxyd - Google Patents
Fremgangsmaate ved fremstilling av siliciumdioxydInfo
- Publication number
- NO842312L NO842312L NO842312A NO842312A NO842312L NO 842312 L NO842312 L NO 842312L NO 842312 A NO842312 A NO 842312A NO 842312 A NO842312 A NO 842312A NO 842312 L NO842312 L NO 842312L
- Authority
- NO
- Norway
- Prior art keywords
- silicon dioxide
- aluminum
- fluorine
- production
- sodium
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 29
- 235000012239 silicon dioxide Nutrition 0.000 title claims description 73
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 39
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims abstract description 33
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000011737 fluorine Substances 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002386 leaching Methods 0.000 claims abstract description 26
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 13
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 230000002378 acidificating effect Effects 0.000 claims abstract description 4
- 229910001868 water Inorganic materials 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- -1 hexafluorosilicic acid Chemical compound 0.000 claims description 23
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 16
- 239000012452 mother liquor Substances 0.000 claims description 15
- 239000004115 Sodium Silicate Substances 0.000 claims description 12
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 229910001610 cryolite Inorganic materials 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 239000011734 sodium Substances 0.000 abstract description 7
- 239000004411 aluminium Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 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 abstract description 5
- 229910052708 sodium Inorganic materials 0.000 abstract description 5
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 22
- 239000000047 product Substances 0.000 description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 11
- 229910052681 coesite Inorganic materials 0.000 description 10
- 229910052906 cristobalite Inorganic materials 0.000 description 10
- 229910052682 stishovite Inorganic materials 0.000 description 10
- 229910052905 tridymite Inorganic materials 0.000 description 10
- 238000001914 filtration Methods 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 235000019353 potassium silicate Nutrition 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- DNEHKUCSURWDGO-UHFFFAOYSA-N aluminum sodium Chemical compound [Na].[Al] DNEHKUCSURWDGO-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000011436 cob Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 101000840469 Arabidopsis thaliana Isochorismate synthase 1, chloroplastic Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 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
- 235000011128 aluminium sulphate Nutrition 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
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010924 continuous production Methods 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
- 230000008021 deposition Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004460 liquid liquid chromatography Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/186—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof from or via fluosilicic acid or salts thereof by a wet process
-
- 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
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
-
- 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
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Silicon Compounds (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Measurement Of Force In General (AREA)
- Light Receiving Elements (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Removal Of Specific Substances (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8205825A SE439477B (sv) | 1982-10-13 | 1982-10-13 | Forfarande for produktion av huvudsakligen ren kiselsyra fran avfallskiselsyra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO842312L true NO842312L (no) | 1984-06-08 |
Family
ID=20348196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO842312A NO842312L (no) | 1982-10-13 | 1984-06-08 | Fremgangsmaate ved fremstilling av siliciumdioxyd |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4557918A (sv) |
| EP (1) | EP0106819B1 (sv) |
| JP (1) | JPS59501901A (sv) |
| AT (1) | ATE26816T1 (sv) |
| CA (1) | CA1216135A (sv) |
| DE (1) | DE3371192D1 (sv) |
| DK (1) | DK283384D0 (sv) |
| FI (1) | FI842380A0 (sv) |
| NO (1) | NO842312L (sv) |
| RO (1) | RO89120A (sv) |
| SE (1) | SE439477B (sv) |
| WO (1) | WO1984001567A1 (sv) |
| YU (1) | YU205583A (sv) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3922508A1 (de) * | 1989-07-08 | 1991-01-10 | Knauf Westdeutsche Gips | Verfahren zur herstellung von technisch verwertbarer amorpher kieselsaeure und sauren loesungen von aluminiumsalzen sowie verwendung derselben |
| IL100503A (en) * | 1991-12-25 | 1995-03-30 | R & D Silicate Prod Ltd | Process for the preparation of amorphous silica |
| US5275800A (en) * | 1992-12-30 | 1994-01-04 | Aluminum Company Of America | Crystalline zeolites and method of preparation from amorphous silica particles |
| US5853685A (en) * | 1996-08-28 | 1998-12-29 | Erickson; William R. | Process for the production of high purity silica from waste by-product silica and hydrogen fluoride |
| CN104803403B (zh) * | 2015-04-17 | 2016-05-25 | 北京矿冶研究总院 | 一种从煤系固体废物预脱硅提取氧化铝的酸碱联合工艺 |
| CN105293545A (zh) * | 2015-11-25 | 2016-02-03 | 德阳东深铝空动力实验室有限责任公司 | 以铝-空气电池放电生成的沉淀物制造纳米氧化铝的方法 |
| CN111762790A (zh) * | 2020-07-07 | 2020-10-13 | 锦洋高新材料股份有限公司 | 一种白炭黑改性的新方法 |
| CN112919477B (zh) * | 2021-03-12 | 2023-11-03 | 成信实业股份有限公司 | 半导体废硅泥的二氧化硅再生方法 |
| CN115784239B (zh) * | 2022-06-24 | 2024-03-19 | 科顺防水科技股份有限公司 | 一种白炭黑的制备方法 |
| CN115215345B (zh) * | 2022-08-16 | 2023-03-14 | 科顺防水科技股份有限公司 | 一种提纯氟硅酸法副产白炭黑及制备冰晶石的方法 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1858100A (en) * | 1928-07-23 | 1932-05-10 | Internat Silica Corp | Process of treating silica-bearing materials |
| US2657149A (en) * | 1952-10-21 | 1953-10-27 | Du Pont | Method of esterifying the surface of a silica substrate having a reactive silanol surface and product thereof |
| US3175882A (en) * | 1961-12-19 | 1965-03-30 | Ralph B Derr | Production of aluminum fluoride |
| US3551322A (en) * | 1967-04-03 | 1970-12-29 | Phillips Petroleum Co | Conversion of oil shale retorting gases |
| US3511605A (en) * | 1968-04-29 | 1970-05-12 | Columbian Carbon | Defluorination of pigmentary silica |
| AT303684B (de) * | 1970-08-25 | 1972-12-11 | Chemie Linz Ag | Verfahren zur Herstellung von Kryolith |
| AT315128B (de) * | 1971-04-29 | 1974-05-10 | Rudarsko Topionicarski Basen B | Verfahren zur gleichzeitigen Gewinnung von Na3A1F6 und aktivem SiO2 |
| AT308708B (de) * | 1971-05-07 | 1973-07-25 | Chemie Linz Ag | Verfahren zur gemeinsamen Abscheidung des Aluminiums und des Fluors aus verdünnten Kieselsäure enthaltenden wässerigen Lösungen |
| AT314474B (de) * | 1971-09-17 | 1974-04-10 | Uzina De Superfosfati Si Acid | Verfahren zur Herstellung von Aluminiumfluorid und Kryolith |
| IT985207B (it) * | 1972-05-26 | 1974-11-30 | Derivados Del Fluor Sa | Procedimento continuo per la produzione di fluoruro di allu minio |
| CH601110A5 (sv) * | 1974-03-15 | 1978-06-30 | Alusuisse | |
| JPS5196159A (ja) * | 1975-02-19 | 1976-08-23 | Futsusoganjujusuinoshorihoho | |
| JPS5199853A (sv) * | 1975-02-28 | 1976-09-03 | Hitachi Ltd | |
| JPS5321399B2 (sv) * | 1975-03-25 | 1978-07-03 | ||
| US4320012A (en) * | 1979-01-22 | 1982-03-16 | Palm Gordon F | Neutralization of phosphoric acid waste waters |
| SE430593B (sv) * | 1981-01-16 | 1983-11-28 | Boliden Ab | Forfarande for att utvinna anvendbara produkter ur avfallsprodukter fran aluminiumfluoridframstellning |
| SE437015B (sv) * | 1982-01-07 | 1985-02-04 | Boliden Ab | Forfarande for utvinning av anvendbara produkter fran avfallsprodukter herrorande fran framstellning av aluminiumfluorid |
-
1982
- 1982-10-13 SE SE8205825A patent/SE439477B/sv not_active IP Right Cessation
-
1983
- 1983-08-22 US US06/525,312 patent/US4557918A/en not_active Expired - Fee Related
- 1983-09-29 WO PCT/SE1983/000341 patent/WO1984001567A1/en active Application Filing
- 1983-09-29 DE DE8383850260T patent/DE3371192D1/de not_active Expired
- 1983-09-29 JP JP58503193A patent/JPS59501901A/ja active Pending
- 1983-09-29 EP EP83850260A patent/EP0106819B1/en not_active Expired
- 1983-09-29 AT AT83850260T patent/ATE26816T1/de not_active IP Right Cessation
- 1983-10-11 YU YU02055/83A patent/YU205583A/xx unknown
- 1983-10-12 CA CA000438849A patent/CA1216135A/en not_active Expired
-
1984
- 1984-06-08 DK DK283384A patent/DK283384D0/da not_active Application Discontinuation
- 1984-06-08 NO NO842312A patent/NO842312L/no unknown
- 1984-06-12 FI FI842380A patent/FI842380A0/fi not_active Application Discontinuation
- 1984-06-12 RO RO84114839A patent/RO89120A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA1216135A (en) | 1987-01-06 |
| SE8205825L (sv) | 1984-04-14 |
| DK283384A (da) | 1984-06-08 |
| SE439477B (sv) | 1985-06-17 |
| ATE26816T1 (de) | 1987-05-15 |
| SE8205825D0 (sv) | 1982-10-13 |
| FI842380A (fi) | 1984-06-12 |
| FI842380A0 (fi) | 1984-06-12 |
| EP0106819A2 (en) | 1984-04-25 |
| JPS59501901A (ja) | 1984-11-15 |
| WO1984001567A1 (en) | 1984-04-26 |
| EP0106819B1 (en) | 1987-04-29 |
| EP0106819A3 (en) | 1984-08-22 |
| DK283384D0 (da) | 1984-06-08 |
| US4557918A (en) | 1985-12-10 |
| RO89120A (ro) | 1986-07-30 |
| YU205583A (en) | 1985-12-31 |
| DE3371192D1 (en) | 1987-06-04 |
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