EP1286780B1 - Mittel zur aufbereitung von phosphaterz - Google Patents
Mittel zur aufbereitung von phosphaterz Download PDFInfo
- Publication number
- EP1286780B1 EP1286780B1 EP01951475A EP01951475A EP1286780B1 EP 1286780 B1 EP1286780 B1 EP 1286780B1 EP 01951475 A EP01951475 A EP 01951475A EP 01951475 A EP01951475 A EP 01951475A EP 1286780 B1 EP1286780 B1 EP 1286780B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- flotation
- agent
- ethylene oxide
- flotation agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 14
- 239000010452 phosphate Substances 0.000 title claims abstract description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 title 1
- 239000002270 dispersing agent Substances 0.000 claims abstract description 21
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000008396 flotation agent Substances 0.000 claims abstract description 15
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 12
- 239000000194 fatty acid Substances 0.000 claims abstract description 12
- 229930195729 fatty acid Natural products 0.000 claims abstract description 12
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 6
- 238000005188 flotation Methods 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000847 nonoxynol Polymers 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 8
- JKTAIYGNOFSMCE-UHFFFAOYSA-N 2,3-di(nonyl)phenol Chemical compound CCCCCCCCCC1=CC=CC(O)=C1CCCCCCCCC JKTAIYGNOFSMCE-UHFFFAOYSA-N 0.000 description 7
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 7
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N 1-nonene Chemical compound CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- YIWGJFPJRAEKMK-UHFFFAOYSA-N 1-(2H-benzotriazol-5-yl)-3-methyl-8-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carbonyl]-1,3,8-triazaspiro[4.5]decane-2,4-dione Chemical compound CN1C(=O)N(c2ccc3n[nH]nc3c2)C2(CCN(CC2)C(=O)c2cnc(NCc3cccc(OC(F)(F)F)c3)nc2)C1=O YIWGJFPJRAEKMK-UHFFFAOYSA-N 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- -1 aliphatic ethoxylated alcohol Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910052637 diopside Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 229910052628 phlogopite Inorganic materials 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001117 sulphuric acid 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
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
-
- 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
- B03D2201/005—Dispersants
-
- 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
- B03D2203/06—Phosphate ores
Definitions
- the present invention relates to an improved flotation agent for Phosphate ore, which in addition to a fatty acid is a mixture of collectors includes ethoxylated alkylphenols.
- a dispersant such as, for example, a nonylphenol with 2-5 mol ethylene oxide (EO) and an aliphatic ethoxylated alcohol with the chain length C 11 -C 15 , which contains 2-4 moles of EO, is used.
- EO nonylphenol with 2-5 mol ethylene oxide
- a further improvement results if an alcohol with the chain length C 1 -C 15 is dissolved in the dispersant. This alcohol improves the emulsifiability of the dispersant.
- Another object of the invention is the use of a mixture of alkoxylated alkylphenols as described above as dispersants in the Flotation of phosphate ores.
- the Use with fatty acids as a collector is the use of a mixture of alkoxylated alkylphenols as described above as dispersants in the Flotation of phosphate ores.
- the Use with fatty acids as a collector is the use of a mixture of alkoxylated alkylphenols as described above as dispersants in the Flotation of phosphate ores.
- the dispersant preferably comprises 9 to 15, in particular 10 to 13% by weight of component a).
- the content of component b) results from the Difference to 100% by weight.
- the alkyl radicals are preferably linear or branched nonyl residues.
- ethylene oxide is between 2 and 4, in particular between 2.5 and 3.5 mol.
- the flotation agent according to the invention contains no alcohols.
- fatty acid which is the main component of the invention Flotation agent
- Flotation agent it is preferably a linear or branched monocarboxylic acid with 8 to 26 carbon atoms.
- Fatty acids known in the art can be used.
- the flotation agent according to the invention preferably contains between 1 and 30% by weight of the dispersant.
- the flotation agent according to the invention is preferably in amounts of 100 to 1,000 g / t solids for flotation of Phosphate ores used.
- the addition amount of the invention Dispersant with separate collector / dispersant metering preferably between 30 and 150 g / t, in particular between 40 and 60 g / t, based on the solids feed.
- the flotation agent according to the invention can, in addition to the above Ingredients fatty acid and dispersant, pusher or others from the Contain components known in the art. Such ingredients are for example foaming agents and aliphatic polyglycol ethers. You can also different pushers, e.g. Water glass, to be used separately.
- the flotation agent according to the invention is exemplified below:
- the reaction can be carried out in such a way that the phenol / nonene mixture is circulated over an acidic fixed bed catalyst.
- the following mixtures were obtained: Mole of phenol Moles of nons Proportion of dinonylphenol 1 0.9 9% by weight 1 1.0 11% by weight 1 1.1 13% by weight comparison 1 0.6 3% by weight
- the dosage can reduced from 81 g / t to 40 to 60 g / t compared to the reference product, without the concentrate quality or the yield deteriorating.
- composition of the raw ore apatite 22% by weight phlogopite 24% by weight calcite 25% by weight dolomite 3% by weight forsterite 7% by weight diopside 8% by weight
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Materials For Medical Uses (AREA)
- Dental Preparations (AREA)
- Paper (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
- Phenol wird vorgelegt
- Zugabe 0,2 eq konz. Schwefelsäure
- Unter Rühren Zugabe von Nonen
- Innentemperatur steigt auf 30 bis 50°C, und es entwickelt sich Chlorwasserstoff
- Die Reaktion ist beendet, wenn die Chlorwasserstoffentwicklung aufhört
| Mol Phenol | Mol Nonen | Anteil Dinonylphenol |
| 1 | 0,9 | 9 Gew.-% |
| 1 | 1,0 | 11 Gew.-% |
| 1 | 1,1 | 13 Gew.-% |
| Vergleich | ||
| 1 | 0,6 | 3 Gew.-% |
- Nonylphenol in sauberen Kessel einfüllen.
- Rührer einschalten.
- Die angegebene Menge Natronlauge (als Katalysator) zugeben bzw. einsaugen.
- Kesselinhalt unter Rühren auf 85 - 90°C aufheizen, dann Vakuum anlegen.
- Vakuum mit Stickstoff aufheben und Kesselinhalt unter Rühren auf 140 - 145°C aufheizen.
- Bei dieser Temperatur Ethylenoxid zudosieren.
- Ethylenoxid bis zum Erreichen der berechneten Menge weiter zudosieren.
- Zur Ethylenoxid-Abreaktion ca. 1 Stunde bei einer Sumpftemperatur von 140 - 150°C nachrühren.
- Probe ziehen und OH-Zahl oder Trübungspunkt bestimmen und bis zum Gutbefund bei 140 - 150°C weiterrühren.
- Ist die Ziel-OH-Zahl bzw. Ziel-Trübungspunkt noch nicht erreicht, muss zum Kesselinhalt die berechnete Ethylenoxidmenge nachdosiert werden.
- Ist die Ziel-OH-Zahl erreicht, wird der Kesselinhalt abgekühlt auf 100 °C und unter Vakuum bei 100°C ausgegast.
- Es folgt die Neutralisation bei 50 - 70°C mit Essigsäure bis auf einen pH-Bereich von 6,0 - 8,0.
| Ausgangsstoffe | ||
| Rohstoff | Mol | Menge |
| Nonyl-/Dinonylphenol | 1 | 231,3/233,9/236,4 kg |
| Ethylenoxid | 3 | 132 kg |
| NaOH (50 %ig) | 0,006 | 0,24 kg |
| Essigsäure (techn. rein) | 0,006 | 0,36 kg |
| erhaltene Substanzen | ||
| Anteil Dinonylphenol | Molverhältnis Nonylphenol/Ethylenoxid | |
| Beispiel 1 | 9 % | 1:3 |
| 2 | 11 % | 1:3 |
| 3 | 13 % | 1:3 |
| Vergleich | 3 % | 1:4 |
| Reagentien in g/t Feststoff | Aufgabe P2O5 in % | Konzentrat P2O5 in % | Ausbeute | ||
| Fettsäure | Dispergiermittel | ||||
| Vergleich | 430 | 81 | 7,2 | 38,1 | 89,8 |
| Beispiel 1 | 430 | 65 | 6,2 | 38,5 | 87,2 |
| Beispiel 2 | 430 | 54 | 6,0 | 38,1 | 89,8 |
| Beispiel 3 | 430 | 43 | 5,7 | 37,7 | 92,4 |
| Reagentien in g/t | Aufgabe P2O5 in % | Konzentrat P2O5 in % | Ausbeute | ||
| Fettsäure | Dispergiermittel | ||||
| Vergleich | 400 | 150 | 7,3 | 39,9 | 71,3 |
| Beispiel 2 | 400 | 150 | 7,8 | 40,1 | 76,2 |
| Beispiel 3 | 400 | 150 | 8,1 | 40,3 | 76,4 |
| Apatit | 22 Gew.-% |
| Phlogopit | 24 Gew.-% |
| Calcit | 25 Gew.-% |
| Dolomit | 3 Gew.-% |
| Forsterit | 7 Gew.-% |
| Diopsid | 8 Gew.-% |
Claims (7)
- Flotationsmittel für Phosphaterz, enthaltend eine Fettsäure als Sammler und alkoxylierte Alkylphenole als Dispergiermittel, dadurch gekennzeichnet, dass die Alkylphenole zusammengesetzt sind auswelche mit 2 bis 6 mol Ethylenoxid alkoxyliert sind.a) 8 bis 20 Gew.-% eines oder mehrerer Dialkylphenole mit Alkylresten von 8 bis 12 C-Atomenb) 80 bis 92 Gew.-% eines oder mehrerer Monoalkylphenole mit Alkylresten von 8 bis 12 C-Atomen,
- Flotationsmittel nach Anspruch 1, enthaltend Nonylphenolethoxilate als Dispergiermittel.
- Flotationsmittel nach Anspruch 1 und/oder 2, worin 9 bis 15 Gew.-% des Dispergiermittels aus einem oder mehreren Dialkylphenolethoxilaten bestehen.
- Flotationsmittel nach einem oder mehreren der Ansprüche 1 bis 3, worin der Ethylenoxidgehalt zwischen 2 und 4 mol liegt.
- Flotationsmittel nach einem oder mehreren der Ansprüche 1 bis 4, worin kein Alkohol enthalten ist.
- Verwendung eines Flotationsmittels gemäß den Ansprüchen 1 bis 5 in Mengen von 100 bis 1.000 g/t zur Flotation von Phosphaterz.
- Verwendung eines Dispergiermittels wie in den Ansprüchen 1 bis 5 definiert für die Phosphatflotation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10024667A DE10024667C2 (de) | 2000-05-18 | 2000-05-18 | Mittel zur Aufbereitung von Phosphaterz |
| DE10024667 | 2000-05-18 | ||
| PCT/EP2001/004964 WO2001087490A1 (de) | 2000-05-18 | 2001-05-03 | Mittel zur aufbereitung von phosphaterz |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1286780A1 EP1286780A1 (de) | 2003-03-05 |
| EP1286780B1 true EP1286780B1 (de) | 2004-08-04 |
Family
ID=7642710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01951475A Expired - Lifetime EP1286780B1 (de) | 2000-05-18 | 2001-05-03 | Mittel zur aufbereitung von phosphaterz |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6712217B2 (de) |
| EP (1) | EP1286780B1 (de) |
| AT (1) | ATE272447T1 (de) |
| AU (1) | AU7239001A (de) |
| BR (1) | BR0110820A (de) |
| DE (2) | DE10024667C2 (de) |
| ES (1) | ES2225579T3 (de) |
| MX (1) | MXPA02011316A (de) |
| WO (1) | WO2001087490A1 (de) |
| ZA (1) | ZA200208449B (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6799682B1 (en) | 2000-05-16 | 2004-10-05 | Roe-Hoan Yoon | Method of increasing flotation rate |
| DE10024667C2 (de) | 2000-05-18 | 2002-02-28 | Clariant Gmbh | Mittel zur Aufbereitung von Phosphaterz |
| CA2597176C (en) | 2005-02-04 | 2013-10-22 | Mineral And Coal Technologies, Inc. | Improving the separation of diamond from gangue minerals |
| CN103265409B (zh) * | 2013-05-31 | 2016-05-11 | 滁州市润达溶剂有限公司 | 一种壬基酚的精制方法 |
| CN103920596B (zh) * | 2014-04-25 | 2017-02-15 | 中蓝连海设计研究院 | 一种胶磷矿组合浮选捕收剂及其制法与用途 |
| CN104307640B (zh) * | 2014-11-07 | 2016-08-17 | 中蓝连海设计研究院 | 一种磷矿反浮选方解石的捕收剂 |
| CN107511268A (zh) * | 2017-09-08 | 2017-12-26 | 湖北富邦科技股份有限公司 | 一种制备高强捕收能力的磷矿石浮选药剂的方法 |
| CN113600344B (zh) * | 2021-07-21 | 2022-12-02 | 宜都兴发化工有限公司 | 一种中间分级再处理的胶磷矿脱除倍半氧化物选矿工艺 |
| US12138638B2 (en) * | 2021-09-09 | 2024-11-12 | Clariant International Ltd | Composition and method for use of 1-alkyl-5-oxopyrrolidine-3-carboxylic acids as collectors for phosphate and lithium flotation |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4110207A (en) * | 1976-01-05 | 1978-08-29 | American Cyanamid Company | Process for flotation of non-sulfide ores |
| US4200522A (en) * | 1976-09-29 | 1980-04-29 | Chem-Y, Fabriek Van Chemische Produkten B.V. | Process for the flotation of ores |
| FR2366067A1 (fr) | 1976-09-29 | 1978-04-28 | Chem Y | Procede de flottation de minerais utilisant des esters d'acides dicarboxyliques comme constituants du collecteur |
| US4309282A (en) * | 1980-04-14 | 1982-01-05 | American Cyanamid Company | Process of phosphate ore beneficiation in the presence of residual organic polymeric flocculants |
| US4690752A (en) * | 1983-08-19 | 1987-09-01 | Resource Technology Associates | Selective flocculation process for the recovery of phosphate |
| US4732666A (en) * | 1985-10-25 | 1988-03-22 | Sentrachem Limited | Froth flotation |
| DE4030160A1 (de) | 1990-09-24 | 1992-03-26 | Henkel Kgaa | Verfahren zur gewinnung von mineralien aus nichtsulfidischen erzen durch flotation |
| DE4127151C2 (de) * | 1991-08-16 | 1996-08-29 | Hoechst Ag | Verfahren zur selektiven Flotation von Phosphormineralen |
| US5962828A (en) * | 1997-10-15 | 1999-10-05 | Custom Chemicals Corporation | Enhanced flotation reagents for beneficiation of phosphate ores |
| DE10024667C2 (de) | 2000-05-18 | 2002-02-28 | Clariant Gmbh | Mittel zur Aufbereitung von Phosphaterz |
-
2000
- 2000-05-18 DE DE10024667A patent/DE10024667C2/de not_active Expired - Fee Related
-
2001
- 2001-05-03 AU AU72390/01A patent/AU7239001A/en not_active Abandoned
- 2001-05-03 AT AT01951475T patent/ATE272447T1/de active
- 2001-05-03 ES ES01951475T patent/ES2225579T3/es not_active Expired - Lifetime
- 2001-05-03 BR BR0110820-4A patent/BR0110820A/pt not_active Application Discontinuation
- 2001-05-03 US US10/276,211 patent/US6712217B2/en not_active Expired - Fee Related
- 2001-05-03 MX MXPA02011316A patent/MXPA02011316A/es active IP Right Grant
- 2001-05-03 EP EP01951475A patent/EP1286780B1/de not_active Expired - Lifetime
- 2001-05-03 DE DE50103125T patent/DE50103125D1/de not_active Expired - Lifetime
- 2001-05-03 WO PCT/EP2001/004964 patent/WO2001087490A1/de not_active Ceased
-
2002
- 2002-10-18 ZA ZA200208449A patent/ZA200208449B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1286780A1 (de) | 2003-03-05 |
| MXPA02011316A (es) | 2004-09-06 |
| US6712217B2 (en) | 2004-03-30 |
| AU7239001A (en) | 2001-11-26 |
| DE10024667C2 (de) | 2002-02-28 |
| WO2001087490A1 (de) | 2001-11-22 |
| US20030146136A1 (en) | 2003-08-07 |
| DE10024667A1 (de) | 2001-11-29 |
| BR0110820A (pt) | 2003-02-11 |
| ATE272447T1 (de) | 2004-08-15 |
| ZA200208449B (en) | 2003-05-12 |
| ES2225579T3 (es) | 2005-03-16 |
| DE50103125D1 (de) | 2004-09-09 |
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