NO321799B1 - Fremgangsmate ved skumflotasjon av silikater i jernmalm med kvaternaere ammoniumforbindelser samt anvendelse av disse - Google Patents
Fremgangsmate ved skumflotasjon av silikater i jernmalm med kvaternaere ammoniumforbindelser samt anvendelse av disse Download PDFInfo
- Publication number
- NO321799B1 NO321799B1 NO20014978A NO20014978A NO321799B1 NO 321799 B1 NO321799 B1 NO 321799B1 NO 20014978 A NO20014978 A NO 20014978A NO 20014978 A NO20014978 A NO 20014978A NO 321799 B1 NO321799 B1 NO 321799B1
- Authority
- NO
- Norway
- Prior art keywords
- groups
- carbon atoms
- independently
- quaternary ammonium
- groups containing
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 51
- 238000005188 flotation Methods 0.000 title claims description 34
- 239000006260 foam Substances 0.000 title claims description 25
- 229910052742 iron Inorganic materials 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 23
- 150000003856 quaternary ammonium compounds Chemical class 0.000 title claims description 19
- 150000004760 silicates Chemical class 0.000 title description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 27
- -1 n-octyl Chemical group 0.000 claims description 14
- 125000002252 acyl group Chemical group 0.000 claims description 12
- 125000001931 aliphatic group Chemical group 0.000 claims description 9
- 229910001608 iron mineral Inorganic materials 0.000 claims description 9
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 8
- 125000002947 alkylene group Chemical group 0.000 claims description 7
- 230000000994 depressogenic effect Effects 0.000 claims description 7
- 239000007900 aqueous suspension Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 3
- 150000004676 glycans Chemical class 0.000 claims description 3
- 229920001282 polysaccharide Polymers 0.000 claims description 3
- 239000005017 polysaccharide Substances 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 description 17
- 238000007792 addition Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229920002472 Starch Polymers 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000008107 starch Substances 0.000 description 4
- 235000019698 starch Nutrition 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 2
- 229910052595 hematite Inorganic materials 0.000 description 2
- 239000011019 hematite Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 description 1
- 244000215068 Acacia senegal Species 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 244000106483 Anogeissus latifolia Species 0.000 description 1
- 235000011514 Anogeissus latifolia Nutrition 0.000 description 1
- 241000416162 Astragalus gummifer Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 229920002261 Corn starch Polymers 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920000896 Ethulose Polymers 0.000 description 1
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229910017356 Fe2C Inorganic materials 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 239000001922 Gum ghatti Substances 0.000 description 1
- 229920000569 Gum karaya Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229920001615 Tragacanth Polymers 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 150000001412 amines Chemical group 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- YXQMBBJITUIBDQ-UHFFFAOYSA-M dodecyl(triethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](CC)(CC)CC YXQMBBJITUIBDQ-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 238000009291 froth flotation Methods 0.000 description 1
- 235000019314 gum ghatti Nutrition 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 235000010494 karaya gum Nutrition 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
- B03D1/011—Quaternary ammonium compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/016—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9901398A SE514435C2 (sv) | 1999-04-20 | 1999-04-20 | Kvartära ammoniumföreningar för skumflotation av silikater från järnmalm |
| PCT/SE2000/000678 WO2000062937A1 (en) | 1999-04-20 | 2000-04-10 | Quaternary ammonium compounds for froth flotation of silicates from an iron ore |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20014978L NO20014978L (no) | 2001-10-12 |
| NO20014978D0 NO20014978D0 (no) | 2001-10-12 |
| NO321799B1 true NO321799B1 (no) | 2006-07-03 |
Family
ID=20415274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20014978A NO321799B1 (no) | 1999-04-20 | 2001-10-12 | Fremgangsmate ved skumflotasjon av silikater i jernmalm med kvaternaere ammoniumforbindelser samt anvendelse av disse |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US7311206B1 (xx) |
| CN (1) | CN1130269C (xx) |
| AU (1) | AU763599B2 (xx) |
| BR (1) | BR0000157B1 (xx) |
| CA (1) | CA2366948C (xx) |
| EA (1) | EA003556B1 (xx) |
| EG (1) | EG22704A (xx) |
| NO (1) | NO321799B1 (xx) |
| OA (1) | OA11860A (xx) |
| SE (1) | SE514435C2 (xx) |
| UA (1) | UA71956C2 (xx) |
| WO (1) | WO2000062937A1 (xx) |
| ZA (1) | ZA200108190B (xx) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006010939A1 (de) | 2006-03-09 | 2007-09-13 | Clariant International Limited | Flotationsreagenz für Silikate |
| DE102006019561A1 (de) | 2006-04-27 | 2007-10-31 | Clariant International Limited | Flotationsreagenz für silikathaltige Mineralien |
| EP2017009B1 (en) | 2007-07-20 | 2013-07-03 | Clariant (Brazil) S.A. | Reverse iron ore flotation by collectors in aqueous nanoemulsion |
| CN101337204B (zh) * | 2008-08-13 | 2011-03-30 | 中南大学 | 一种双季铵盐类化合物在硅酸盐矿物浮选上的应用及硅酸盐矿物浮选捕收剂 |
| DE102008056338B4 (de) * | 2008-11-07 | 2012-02-16 | Clariant International Ltd. | Flotationsreagenz für silikathaltige Mineralien |
| DE102010004893A1 (de) | 2010-01-19 | 2011-07-21 | Clariant International Limited | Flotationsreagenz für magnetit- und/oder hämatithaltige Eisenerze |
| RU2012155713A (ru) * | 2010-05-28 | 2014-07-10 | Акцо Нобель Кемикалз Интернэшнл Б.В. | Четвертичные соединения аммония и их использование в качестве коллекторов в процессах пенной флотации |
| CN102125892B (zh) * | 2010-12-07 | 2012-10-31 | 鞍钢集团矿业公司 | 贫赤铁矿阴离子反浮选三个官能团的捕收剂的制作方法 |
| MY169140A (en) | 2012-09-04 | 2019-02-18 | Vale Sa | Use of modified sugar cane bagasse as depressor in iron ore flotation |
| UA116361C2 (uk) | 2012-10-01 | 2018-03-12 | Кеміра Ойй | Пригнічувачі флотації рудних мінералів |
| WO2014083197A1 (en) | 2012-11-30 | 2014-06-05 | Akzo Nobel Chemicals International B.V. | Flotation of silicates from ores |
| CN102941160A (zh) * | 2012-12-13 | 2013-02-27 | 贵州大学 | 一种硅酸盐矿物浮选捕收剂 |
| CN105013620B (zh) * | 2015-06-25 | 2017-07-07 | 西南科技大学 | 一种锂辉石高效组合捕收剂及其制备方法和应用 |
| CN106733209A (zh) * | 2015-11-19 | 2017-05-31 | 中钢集团马鞍山矿山研究院有限公司 | 一种微细粒铁矿石反浮选捕收剂的制备方法 |
| CN105396698B (zh) * | 2015-11-19 | 2018-01-05 | 中钢集团马鞍山矿山研究院有限公司 | 一种复合型季铵盐阳离子硅酸盐矿物捕收剂及其制备方法 |
| EP3208315A1 (en) | 2016-02-16 | 2017-08-23 | Omya International AG | Process for manufacturing white pigment containing products |
| EP3208314B1 (en) | 2016-02-16 | 2018-08-15 | Omya International AG | Process for manufacturing white pigment containing products |
| EP3444036A1 (en) | 2017-08-16 | 2019-02-20 | Omya International AG | Indirect flotation process for manufacturing white pigment containing products |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2341046A (en) * | 1940-10-07 | 1944-02-08 | Du Pont | Flotation |
| US2410021A (en) * | 1944-04-26 | 1946-10-29 | Eric Mining Company | Flotation process |
| US3363758A (en) * | 1966-12-08 | 1968-01-16 | Ashland Oil Inc | Use of primary aliphatic ether amine acid salts in froth flotation process |
| US3960715A (en) | 1974-01-07 | 1976-06-01 | The Hanna Mining Company | Cationic froth flotation process |
| CA1100239A (en) * | 1976-10-18 | 1981-04-28 | Robert E. Lawlor | Emulsified ether amines and process for using same in froth flotation |
| CA1187212A (fr) * | 1982-04-23 | 1985-05-14 | Gennard Delisle | Procede de purification des mineraux du groupe de la calcite par flottation des impuretes |
| US4830739A (en) * | 1985-02-20 | 1989-05-16 | Berol Kemi Ab | Process and composition for the froth flotation beneficiation of iron minerals from iron ores |
| DE3818482A1 (de) | 1988-05-31 | 1989-12-07 | Henkel Kgaa | Tensidmischungen als sammler fuer die flotation nichtsulfidischer erze |
| US4892649A (en) * | 1988-06-13 | 1990-01-09 | Akzo America Inc. | Calcium carbonate beneficiation |
| SE501623C2 (sv) | 1993-05-19 | 1995-04-03 | Berol Nobel Ab | Sätt att flotera kalciumkarbonatmalm samt ett flotationsreagens därför |
| DE19602856A1 (de) | 1996-01-26 | 1997-07-31 | Henkel Kgaa | Biologisch abbaubare Esterquats als Flotationshilfsmittel |
-
1999
- 1999-04-20 SE SE9901398A patent/SE514435C2/sv not_active IP Right Cessation
-
2000
- 2000-01-25 BR BRPI0000157-0A patent/BR0000157B1/pt not_active IP Right Cessation
- 2000-04-10 EA EA200101099A patent/EA003556B1/ru not_active IP Right Cessation
- 2000-04-10 CA CA2366948A patent/CA2366948C/en not_active Expired - Fee Related
- 2000-04-10 CN CN00806464A patent/CN1130269C/zh not_active Expired - Fee Related
- 2000-04-10 AU AU46316/00A patent/AU763599B2/en not_active Ceased
- 2000-04-10 WO PCT/SE2000/000678 patent/WO2000062937A1/en active IP Right Grant
- 2000-04-10 OA OA1200100259A patent/OA11860A/en unknown
- 2000-04-15 EG EG20000472A patent/EG22704A/xx active
- 2000-04-16 US US09/959,038 patent/US7311206B1/en not_active Expired - Fee Related
- 2000-10-04 UA UA2001107251A patent/UA71956C2/uk unknown
-
2001
- 2001-10-05 ZA ZA200108190A patent/ZA200108190B/xx unknown
- 2001-10-12 NO NO20014978A patent/NO321799B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9901398D0 (sv) | 1999-04-20 |
| CN1130269C (zh) | 2003-12-10 |
| EA200101099A1 (ru) | 2002-04-25 |
| UA71956C2 (uk) | 2005-01-17 |
| CN1347345A (zh) | 2002-05-01 |
| BR0000157B1 (pt) | 2011-05-17 |
| EA003556B1 (ru) | 2003-06-26 |
| NO20014978L (no) | 2001-10-12 |
| NO20014978D0 (no) | 2001-10-12 |
| AU4631600A (en) | 2000-11-02 |
| US7311206B1 (en) | 2007-12-25 |
| ZA200108190B (en) | 2003-04-30 |
| WO2000062937A1 (en) | 2000-10-26 |
| AU763599B2 (en) | 2003-07-24 |
| EG22704A (en) | 2003-07-30 |
| BR0000157A (pt) | 2001-01-16 |
| CA2366948C (en) | 2010-08-03 |
| OA11860A (en) | 2006-03-02 |
| SE9901398L (sv) | 2000-10-21 |
| CA2366948A1 (en) | 2000-10-26 |
| SE514435C2 (sv) | 2001-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |