EP2525915B1 - Flotationsreagenz für magnetit- und/oder hämatithaltige eisenerze - Google Patents
Flotationsreagenz für magnetit- und/oder hämatithaltige eisenerze Download PDFInfo
- Publication number
- EP2525915B1 EP2525915B1 EP11700151.1A EP11700151A EP2525915B1 EP 2525915 B1 EP2525915 B1 EP 2525915B1 EP 11700151 A EP11700151 A EP 11700151A EP 2525915 B1 EP2525915 B1 EP 2525915B1
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- EP
- European Patent Office
- Prior art keywords
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- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 73
- 229910052742 iron Inorganic materials 0.000 title claims description 32
- 238000005188 flotation Methods 0.000 title claims description 29
- 229910052595 hematite Inorganic materials 0.000 title claims description 9
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 title claims description 9
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 title claims description 9
- 239000003153 chemical reaction reagent Substances 0.000 title claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 27
- -1 isodecyl Chemical group 0.000 claims description 16
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 10
- 239000000194 fatty acid Substances 0.000 claims description 10
- 229930195729 fatty acid Natural products 0.000 claims description 10
- 150000004665 fatty acids Chemical class 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 9
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 8
- 239000005977 Ethylene Substances 0.000 claims description 8
- 239000011019 hematite Substances 0.000 claims description 8
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 125000001931 aliphatic group Chemical group 0.000 claims description 6
- 125000003342 alkenyl group Chemical group 0.000 claims description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical group N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Chemical group CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 4
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 claims description 4
- 125000003438 dodecyl group Chemical group [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])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 150000003856 quaternary ammonium compounds Chemical class 0.000 claims description 3
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 2
- 239000003240 coconut oil Substances 0.000 claims description 2
- 235000019864 coconut oil Nutrition 0.000 claims description 2
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- 125000005842 heteroatom Chemical group 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- 125000003696 stearoyl group Chemical group O=C([*])C([H])([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])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 claims description 2
- 239000003784 tall oil Substances 0.000 claims description 2
- 239000003760 tallow Substances 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 3
- 150000003973 alkyl amines Chemical class 0.000 claims 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 5
- 125000002811 oleoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([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 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 5
- 125000002704 decyl group Chemical group [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])C([H])([H])C([H])([H])* 0.000 description 4
- 150000002430 hydrocarbons Chemical group 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000000205 acacia gum Substances 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 238000006386 neutralization reaction Methods 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
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B03D1/01—Organic compounds containing nitrogen
-
- 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
- B03D1/0043—Organic compounds modified so as to contain a polyether group
-
- 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
- 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
Definitions
- the present invention relates to the use of collectors in the flotation of iron ore containing magnetite and / or hematite.
- silicates are naturally occurring ores and minerals.
- these include calcite, phosphate ore and feldspar.
- the silicate content reduces the quality of the iron ore and interferes with iron production.
- the iron ore is separated from the silicate in addition to the magnetic separation by inverse flotation.
- the ground iron ore is brought together in a flotation cell with water and flotation reagents, wherein the silicate is discharged through the use of a collector with the foam, while the iron ore remains back in the so-called pulp.
- fatty amines alkyl ether amines and alkyl ether diamines are used as silicate collectors. These are known under the trade name Flotigam ®.
- Alkyl ether amines and alkyl ether diamines are mostly used in their partially neutralized forms as partial acetates as in U.S. 4,319,987 described. The reason for this is their better solubility in the pulp.
- the silicate flotation, including iron ore, with the help of Alkyloxyalkanaminen is in U.S. 5,540,337 described.
- DE-A-10 2006 010 939 discloses the use of a compound of formula (I) R 1 -OR 2 -NH (2-m) - [(R 3 ) n -H] m (I) wherein R 1 is a hydrocarbon group having 1 to 40 carbon atoms, R 2 is an aliphatic hydrocarbon group having 2 to 4 carbon atoms and R 3 is an alkoxy group, n is a number between 1 and 50 and m is 1 or 2, as a flotation reagent in the silicate flotation.
- iron ore float collectors known in the prior art have insufficient selectivity and yield, especially when iron ores containing magnetite and / or hematite are to be separated from silicates as an accompanying mineral.
- the ratio of the collector components A: B is preferably between 98: 2 and 2:98 by weight, in particular between 70:30 and 30:70 by weight.
- the collector according to the invention is free of quaternary ammonium compounds which comprise at least one organic radical containing 8 to 36 carbon atoms and bound to the ammonium nitrogen atom, optionally containing heteroatoms.
- a quaternary ammonium compound is meant a compound which does not carry a hydrogen atom on the ammonium nitrogen atom but in which the ammonium nitrogen atom is bonded to four carbon atoms.
- This particularly preferred embodiment is thus not to be understood as the embodiment in which either the compound of the formula 1 or the compound B) of the formula D-NH 2 or both are present as mono- or diammonium salts.
- These mono- or diammonium salts carry at least one hydrogen atom on the ammonium nitrogen atom.
- component B) can be used as a salt, for example as an acetate.
- Component B) of the collector according to the invention is preferably one or more of the compounds of the formulas (II) to (IV). These connections are R 9 -OR 5 -NH 2 (II) wherein R 9 corresponds to a hydrocarbon group of 1-40, preferably 8 to 32 carbon atoms and R 5 corresponds to an aliphatic hydrocarbon group of 2 to 4 carbon atoms; R 6 -OR 7 -NH-R 8 -NH 2 (III) wherein R 6 corresponds to a hydrocarbon group of 1-40, preferably 8 to 32 carbon atoms, R 7 and R 8 correspond to one or more aliphatic hydrocarbon group having 2 to 4 carbon atoms; R 13 -NH 2 (IV) wherein R 13 corresponds to a hydrocarbon group having 1-40, preferably 8 to 32 carbon atoms.
- R 1 preferably represents a linear or branched alkyl or alkenyl group comprising 10 to 22 carbon atoms. Particularly preferred for R 1 are isodecyl isotridecyl, dodecyl, Cocosfettalkyl- and Talgfettalkylreste.
- R 1 in a preferred embodiment represents an alkyl and alkenyl chain cut derived from coconut oil fatty acid, palm oil fatty acid, tallow fatty acid, oleic acid, tall oil fatty acid or rapeseed oil fatty acid.
- R 2 , R 3 , R 4 are independently acyl radicals having 8 to 24 carbon atoms.
- the acyl radicals preferably comprise 10 to 18 carbon atoms. They can be linear or branched.
- the acyl radicals can be saturated or unsaturated.
- Preferred acyl radicals are stearoyl and oleoyl radicals.
- R 6 , R 9 , R 13 independently of one another preferably represent a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms. Particularly preferred for R 6 , R 9 , R 13 are 2-ethylhexyl, isononyl, isodecyl and Isotridecyl- and dodecyl.
- R 5 , R 7 , R 8 independently of one another preferably represent alkylene groups having 2, 3 or 4 carbon atoms, in particular ethylene or propylene groups.
- A is in particular either an ethylene - (- C 2 H 4 -), a propylene - (- C 3 H 6 -) or a butylene group (-C 4 H 8 -).
- A is an ethylene group.
- B is in particular either an ethylene - (- C 2 H 4 -), a propylene - (- C 3 H 6 -) or a butylene group (-C 4 H 8 -).
- B is an isopropylene group.
- x, y and z preferably give an integer of 15 to 30, in particular 20 to 25.
- the aminoalkoxylate ester constituting component A) is in the form of its mono- or di-ammonium salts obtained by neutralization with both organic and mineral acids.
- the use of the flotation reagent according to the invention can also be carried out in combination with foaming agents and pushers, as known from the prior art.
- foaming agents and pushers as known from the prior art.
- hydrophilic polysaccharides such as modified starch, carboxymethylcellulose, or gum arabic are added in dosages of 10 to 1,000 g / t as pushers.
- the silicate flotation is preferably carried out at a pH of 7-12, in particular 8-11, which is for example adjusted with sodium hydroxide.
- the following table represents the flotative results of the inventive collector compared to the standard reagent. Flotation experiments were carried out on an iron ore containing magnetite and hematite. A) Composition of iron ore lodestone 59% by weight hematite 25% by weight (other components) 16% by weight B) Composition of the collector
- the content of Fe in the concentrate was determined analytically.
Landscapes
- Compounds Of Iron (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010004893A DE102010004893A1 (de) | 2010-01-19 | 2010-01-19 | Flotationsreagenz für magnetit- und/oder hämatithaltige Eisenerze |
| PCT/EP2011/000007 WO2011088963A1 (de) | 2010-01-19 | 2011-01-04 | Flotationsreagenz für magnetit- und/oder hämatithaltige eisenerze |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2525915A1 EP2525915A1 (de) | 2012-11-28 |
| EP2525915B1 true EP2525915B1 (de) | 2015-07-08 |
Family
ID=43828316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11700151.1A Active EP2525915B1 (de) | 2010-01-19 | 2011-01-04 | Flotationsreagenz für magnetit- und/oder hämatithaltige eisenerze |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US8939291B2 (pt) |
| EP (1) | EP2525915B1 (pt) |
| CN (1) | CN102770213B (pt) |
| AU (1) | AU2011208902B2 (pt) |
| BR (1) | BR112012017237B1 (pt) |
| CA (1) | CA2787445C (pt) |
| CL (1) | CL2012002001A1 (pt) |
| DE (1) | DE102010004893A1 (pt) |
| DK (1) | DK2525915T3 (pt) |
| ES (1) | ES2542746T3 (pt) |
| RU (1) | RU2562284C2 (pt) |
| UA (1) | UA106784C2 (pt) |
| WO (1) | WO2011088963A1 (pt) |
| ZA (1) | ZA201202694B (pt) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104646186A (zh) * | 2015-01-30 | 2015-05-27 | 武汉理工大学 | 一种三酯基季铵盐阳离子捕收剂及其制备方法和应用 |
| US20190314828A1 (en) | 2016-07-08 | 2019-10-17 | Akzo Nobel Chemicals International B.V. | Process to treat magnetite ore and collector composition |
| CN106179765B (zh) * | 2016-07-27 | 2018-12-28 | 湖北富邦科技股份有限公司 | 一种提磷降镁率高的磷矿反浮选捕收剂及制备方法 |
| CN106492998B (zh) * | 2016-11-02 | 2018-11-20 | 广西大学 | 一种赤铁矿捕收剂的制备方法 |
| CN112808463B (zh) * | 2020-12-30 | 2022-06-21 | 中南大学 | 一种将铁钛矿与含铁脉石浮选分离的药剂和方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2389763A (en) | 1941-04-24 | 1945-11-27 | Emulsol Corp | Separation of mineral values from ores |
| US3363758A (en) * | 1966-12-08 | 1968-01-16 | Ashland Oil Inc | Use of primary aliphatic ether amine acid salts in froth flotation process |
| US4319987A (en) | 1980-09-09 | 1982-03-16 | Exxon Research & Engineering Co. | Branched alkyl ether amines as iron ore flotation aids |
| SU1090449A1 (ru) * | 1983-02-08 | 1984-05-07 | Институт минеральных ресурсов | Способ обогащени железных руд |
| SU1269846A1 (ru) * | 1985-07-25 | 1986-11-15 | Институт Органической Химии Ан Усср | Способ обогащени железных руд |
| DE4133063A1 (de) * | 1991-10-04 | 1993-04-08 | Henkel Kgaa | Verfahren zur herstellung von eisenerzkonzentraten durch flotation |
| US5540337A (en) | 1994-04-04 | 1996-07-30 | Baker Hughes Incorporated | Alkyloxyalkaneamines useful as cationic froth flotation collectors |
| DE19602856A1 (de) * | 1996-01-26 | 1997-07-31 | Henkel Kgaa | Biologisch abbaubare Esterquats als Flotationshilfsmittel |
| SE521949C2 (sv) | 1997-11-27 | 2003-12-23 | Akzo Nobel Nv | Förfarande för skumflotation av silikatinnehållande järnmalm |
| SE514435C2 (sv) | 1999-04-20 | 2001-02-26 | Akzo Nobel Nv | Kvartära ammoniumföreningar för skumflotation av silikater från järnmalm |
| 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 |
| RU2365425C2 (ru) * | 2007-04-04 | 2009-08-27 | Совместное предприятие в форме закрытого акционерного общества "Изготовление, внедрение, сервис" | Способ флотационной доводки магнетитовых концентратов |
| RU2467804C2 (ru) * | 2007-06-12 | 2012-11-27 | Акцо Нобель Н.В. | Коллектор для флотации глинистых минералов из калийных руд |
-
2010
- 2010-01-19 DE DE102010004893A patent/DE102010004893A1/de not_active Withdrawn
-
2011
- 2011-01-04 DK DK11700151.1T patent/DK2525915T3/en active
- 2011-01-04 RU RU2012135550/03A patent/RU2562284C2/ru active
- 2011-01-04 ES ES11700151.1T patent/ES2542746T3/es active Active
- 2011-01-04 BR BR112012017237-9A patent/BR112012017237B1/pt active IP Right Grant
- 2011-01-04 CA CA2787445A patent/CA2787445C/en active Active
- 2011-01-04 CN CN201180004406.1A patent/CN102770213B/zh not_active Expired - Fee Related
- 2011-01-04 UA UAA201209876A patent/UA106784C2/uk unknown
- 2011-01-04 AU AU2011208902A patent/AU2011208902B2/en active Active
- 2011-01-04 US US13/521,546 patent/US8939291B2/en active Active
- 2011-01-04 WO PCT/EP2011/000007 patent/WO2011088963A1/de active Application Filing
- 2011-01-04 EP EP11700151.1A patent/EP2525915B1/de active Active
-
2012
- 2012-04-13 ZA ZA2012/02694A patent/ZA201202694B/en unknown
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Also Published As
| Publication number | Publication date |
|---|---|
| BR112012017237A2 (pt) | 2016-03-22 |
| AU2011208902B2 (en) | 2015-12-03 |
| AU2011208902A1 (en) | 2012-05-03 |
| RU2562284C2 (ru) | 2015-09-10 |
| CA2787445A1 (en) | 2011-07-28 |
| WO2011088963A1 (de) | 2011-07-28 |
| BR112012017237B1 (pt) | 2019-11-19 |
| CA2787445C (en) | 2017-08-29 |
| CL2012002001A1 (es) | 2013-01-11 |
| RU2012135550A (ru) | 2014-02-27 |
| DK2525915T3 (en) | 2015-09-14 |
| CN102770213A (zh) | 2012-11-07 |
| US8939291B2 (en) | 2015-01-27 |
| ZA201202694B (en) | 2013-02-27 |
| UA106784C2 (uk) | 2014-10-10 |
| US20120325725A1 (en) | 2012-12-27 |
| DE102010004893A1 (de) | 2011-07-21 |
| EP2525915A1 (de) | 2012-11-28 |
| ES2542746T3 (es) | 2015-08-11 |
| CN102770213B (zh) | 2014-04-02 |
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