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EP2525915B1 - Réactif de flottation pour minerais de fer contenant de la magnétite et/ou de l'hématite - Google Patents

Réactif de flottation pour minerais de fer contenant de la magnétite et/ou de l'hématite Download PDF

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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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Prior art keywords
carbon atoms
group
radical
independently
another
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EP11700151.1A
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German (de)
English (en)
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EP2525915A1 (fr
Inventor
Klaus-Ulrich Pedain
Uwe Dahlmann
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Clariant International Ltd
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Clariant Finance BVI Ltd
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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.

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  • Compounds Of Iron (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (20)

  1. Utilisation d'une composition contenant
    A) au moins un ester d'aminalcoxylate de formule (1) ou un sel correspondant
    Figure imgb0010
     dans laquelle
    A, B signifient, indépendamment l'un de l'autre, un radical C2-C5-alkylène
    R1 signifie un radical C8-C24-alkyle ou C8-C24-alcényle
    R2, R3, R4 signifient, indépendamment les uns des autres, H ou un radical C8-C24-acyle, à condition qu'au moins un des radicaux R2, R3 ou R4 représente un radical C8-C24-acyle
    x, y, z valent, indépendamment les uns des autres, un nombre entier de 0 à 50, à condition que x + y + z vaille un nombre entier de 1 à 100,
    et
    B) signifie un composé de formule D-NH2, dans laquelle D représente un radical hydrocarboné comprenant 1 à 50 atomes de carbone, qui peut contenir soit un atome d'oxygène, soit un atome d'oxygène et un atome d'azote,
    en des quantités de 10 à 5000 g/tonne comme collecteur dans la flottation inverse de minerai de fer, qui contient de la magnétite, de l'hématite ou les deux.
  2. Utilisation selon la revendication 1, R1 représentant un radical alkyle ou alcényle comprenant 10 à 22 atomes de carbone.
  3. Utilisation selon la revendication 1 et/ou 2, R1 représentant un radical isodécyle, isotridécyle, dodécyle ou oléyle, ou représentant un fragment de chaîne alkyle et alcényle, qui est dérivé de l'acide gras d'huile de coco, de l'acide gras d'huile de palme, de l'acide gras de suif, de l'acide gras de tall oil ou de l'acide gras d'huile de colza.
  4. Utilisation selon l'une ou plusieurs des revendications 1 à 3, R2, R3, R4 représentant, indépendamment les uns des autres, des radicaux acyle comprenant 10 à 18 atomes de carbone.
  5. Utilisation selon l'une ou plusieurs des revendications 1 à 4, R2, R3, R4 représentant, indépendamment les uns des autres, des radicaux cocoyle, stéaroyle et oléoyle.
  6. Utilisation selon l'une ou plusieurs des revendications 1 à 5, le constituant (B) étant choisi parmi les composés de formule

            R9-O-R8-NH2     (II)

    dans laquelle R9 représente un groupe hydrocarboné comprenant 1-40, de préférence 8 à 32 atomes de carbone et R5 représente un groupe hydrocarboné aliphatique comprenant 2-4 atomes de carbone ;

            R6-O-R7-NH-R8-NH2     (III)

    dans laquelle R6 représente un groupe hydrocarboné comprenant 1-40, de préférence 8 à 32 atomes de carbone, R7 et R8 représentent un ou différents groupes hydrocarbonés aliphatiques comprenant 2-4 atomes de carbone ;

            R13-NH2     (IV)

    dans laquelle R13 représente un groupe hydrocarboné comprenant 1-40, de préférence 8 à 32 atomes de carbone.
  7. Utilisation selon l'une ou plusieurs des revendications 1 à 6, R6, R9, R13 représentant, indépendamment les uns des autres, un groupe alkyle ou alcényle comprenant 8 à 18 atomes de carbone.
  8. Utilisation selon l'une ou plusieurs des revendications 1 à 7, R6, R9, R13 représentant des radicaux 2-éthylhexyle, isononyle, isodécyle et isotridécyle ainsi que dodécyle.
  9. Utilisation selon l'une ou plusieurs des revendications 1 à 8, A représentant un groupe éthylène (-C2H4-), un groupe propylène (-C3H6-) ou un groupe butylène (-C4H8-), A représentant de préférence un groupe éthylène.
  10. Utilisation selon l'une ou plusieurs des revendications 1 à 9, B représentant un groupe éthylène (-C2H4-), un groupe propylène (-C3H6-) ou un groupe butylène (-C4H8-).
  11. Utilisation selon l'une ou plusieurs des revendications 1 à 10, la somme de x, y et z valant un nombre entier de 15 à 30.
  12. Utilisation selon l'une ou plusieurs des revendications 1 à 11, le collecteur selon l'invention étant exempt de composés d'ammonium quaternaire qui comprennent au moins un radical organique lié à l'atome d'azote ammonium, contenant le cas échéant des hétéroatomes, comprenant 8 à 36 atomes de carbone.
  13. Utilisation selon l'une ou plusieurs des revendications 1 à 12 pour la flottation de silicate de minerai de fer en combinaison avec un autre collecteur de type silicate contenant de l'azote à un pH de 7-12, l'autre collecteur étant choisi dans le groupe formé par les alkylétheramines, les alkylétherdiamines, les alkylamines et les sels d'ammonium quaternaire.
  14. Utilisation selon l'une ou plusieurs des revendications 1 à 13 pour l'enrichissement de minerai de fer.
  15. Utilisation selon l'une ou plusieurs des revendications 1 à 14 lors de la flottation de silicate de minerai de fer.
  16. Utilisation selon l'une ou plusieurs des revendications 1 à 14 lors de la flottation de silicate.
  17. Utilisation du réactif de flottation selon l'une ou plusieurs des revendications 1 à 16 en combinaison avec des agents moussants et des agents déprimants.
  18. Utilisation du réactif de flottation selon l'une ou plusieurs des revendications 1 à 17 dans une plage de pH de 7 à 12.
  19. Utilisation du réactif de flottation selon l'une ou plusieurs des revendications 1 à 18 en des quantités de 0,01 à 1,0 kg par tonne de minerai brut.
  20. Procédé pour la flottation inverse de minerai de fer, qui contient de la magnétite, de l'hématite ou les deux, dans lequel on met en contact
    A) au moins un ester d'aminalcoxylate de formule (1) ou un sel correspondant
    Figure imgb0011
     dans laquelle
    A, B signifient, indépendamment l'un de l'autre, un radical C2-C5-alkylène
    R1 signifie un radical C8-C24-alkyle ou C8-C24-alcényle
    R2, R3, R4 signifient, indépendamment les uns des autres, H ou un radical C8-C24-acyle, à condition qu'au moins un des radicaux R2, R3 ou R4 représente un radical C8-C24-acyle
    x, y, z valent, indépendamment les uns des autres, un nombre entier de 0 à 50, à condition que x + y + z vaille un nombre entier de 1 à 100,
    et
    B) signifie un composé de formule D-NH2, dans laquelle D représente un radical hydrocarboné comprenant 1 à 50 atomes de carbone, qui peut contenir soit un atome d'oxygène, soit un atome d'oxygène et un atome d'azote,
    en des quantités de 10 à 5000 g/tonne de minerai de fer avec le minerai de fer.
EP11700151.1A 2010-01-19 2011-01-04 Réactif de flottation pour minerais de fer contenant de la magnétite et/ou de l'hématite Active EP2525915B1 (fr)

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 (fr) 2010-01-19 2011-01-04 Réactif de flottation pour minerais de fer contenant de la magnétite et/ou de l'hématite

Publications (2)

Publication Number Publication Date
EP2525915A1 EP2525915A1 (fr) 2012-11-28
EP2525915B1 true EP2525915B1 (fr) 2015-07-08

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Country Status (14)

Country Link
US (1) US8939291B2 (fr)
EP (1) EP2525915B1 (fr)
CN (1) CN102770213B (fr)
AU (1) AU2011208902B2 (fr)
BR (1) BR112012017237B1 (fr)
CA (1) CA2787445C (fr)
CL (1) CL2012002001A1 (fr)
DE (1) DE102010004893A1 (fr)
DK (1) DK2525915T3 (fr)
ES (1) ES2542746T3 (fr)
RU (1) RU2562284C2 (fr)
UA (1) UA106784C2 (fr)
WO (1) WO2011088963A1 (fr)
ZA (1) ZA201202694B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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
EP3481557A2 (fr) 2016-07-08 2019-05-15 Akzo Nobel Chemicals International B.V. Procédé de traitement de minerai de magnétite et composition collectrice
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 (13)

* Cited by examiner, † Cited by third party
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
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
WO2008152029A1 (fr) * 2007-06-12 2008-12-18 Akzo Nobel N.V. Collecteur pour la flottation de matières minérales argileuses dans des minerais de potasse

Also Published As

Publication number Publication date
BR112012017237B1 (pt) 2019-11-19
EP2525915A1 (fr) 2012-11-28
CA2787445A1 (fr) 2011-07-28
ZA201202694B (en) 2013-02-27
CN102770213A (zh) 2012-11-07
RU2012135550A (ru) 2014-02-27
WO2011088963A1 (fr) 2011-07-28
ES2542746T3 (es) 2015-08-11
CN102770213B (zh) 2014-04-02
AU2011208902A1 (en) 2012-05-03
AU2011208902B2 (en) 2015-12-03
US20120325725A1 (en) 2012-12-27
DE102010004893A1 (de) 2011-07-21
CA2787445C (fr) 2017-08-29
RU2562284C2 (ru) 2015-09-10
DK2525915T3 (en) 2015-09-14
BR112012017237A2 (pt) 2016-03-22
UA106784C2 (uk) 2014-10-10
US8939291B2 (en) 2015-01-27
CL2012002001A1 (es) 2013-01-11

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