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EP2012929B1 - Réactif de flottation pour minéraux silicatés - Google Patents

Réactif de flottation pour minéraux silicatés Download PDF

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Publication number
EP2012929B1
EP2012929B1 EP07724263.4A EP07724263A EP2012929B1 EP 2012929 B1 EP2012929 B1 EP 2012929B1 EP 07724263 A EP07724263 A EP 07724263A EP 2012929 B1 EP2012929 B1 EP 2012929B1
Authority
EP
European Patent Office
Prior art keywords
flotation
silicate
collector
group
carbon atoms
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.)
Not-in-force
Application number
EP07724263.4A
Other languages
German (de)
English (en)
Other versions
EP2012929A1 (fr
Inventor
Klaus-Ulrich Pedain
Tobias Rau
Michael Patzke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clariant Finance BVI Ltd
Original Assignee
Clariant Finance BVI Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Clariant Finance BVI Ltd filed Critical Clariant Finance BVI Ltd
Publication of EP2012929A1 publication Critical patent/EP2012929A1/fr
Application granted granted Critical
Publication of EP2012929B1 publication Critical patent/EP2012929B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 alkyltriarnines in the flotation of siliceous minerals and ores.
  • Calcium carbonate is purified from silicate-containing and color-providing minerals with the aid of quaternary ammonium salts based on fatty acids or fatty alkylimidazoline compounds. Since calcium carbonate is used in addition to kaolin, rutile and talc as a white pigment in paper and plastic production, the highest possible whiteness or a low concentration of coloring minerals is desired. Due to the hardness of silicate, this would also lead to increased wear on the calenders of paper machines in papermaking. Therefore, calcium carbonate is purified in addition to dry processing via the flotation process.
  • the aim is to reduce the silicate content, which in the case of calcium carbonate is often characterized as an acid-insoluble constituent, by less than 1.0% by weight due to the reverse flotation.
  • the content of silicate in the task can vary and in some cases be from 10 to 20% by weight.
  • fatty amines alkyl ether amines, alkyl ether diamines or quaternary ammonium salt compounds are used as silicate collectors. These are also 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 the better solubility of the partially neutralized amine functions.
  • U.S. 4,995,965 describes the use of methyl bis (2-hydroxypropyl) cocosammonium methyl sulfate as a flotation reagent to float silicate-containing impurities out of calcite.
  • the silicate flotation, including iron ore, with the help of Alkyloxyalkanaminen is in U.S. 5,540,337 described.
  • U.S. 5,720,873 describes the combination of quaternary ammonium salts with fattyoxyalkylene compounds for the purification of calcium carbonate. This combination achieved an improvement over the quaternary ammonium salts in separating acid-insoluble components.
  • the object of the present invention was therefore to provide an improved collector for the silicate flotation, which can be used in particular in the reverse flotation but also in the direct flotation.
  • the collectors used today for the flotation of silicate-containing minerals have relatively high specific amounts used, which can lead to environmental problems with regard to the residual content of amine in the concentrate or in the mountains. It is known that amines and amine derivatives have high aqua and environmental toxicity. Therefore, one strives to minimize their specific amounts. Furthermore, their residual concentration in the final product should be kept as low as possible.
  • alkyl dipropylene triamines leads to a marked improvement in the flotation of silicate-containing minerals compared to the known flotation reagents, it being possible to significantly reduce the specific amounts used.
  • the invention thus relates to the use of a compound of formula 1 RN- [A-NH 2 ] 2 (1) wherein R is a linear or branched alkyl group or alkenyl group having 6 to 20 carbon atoms and A is a propylene group (-C 3 H 6 -), as a collector in the silicate flotation.
  • Another object of the invention is a method for flotation of silicate mineral by bringing a compound of formula 1 with the silicate-containing mineral in contact.
  • Another object of the invention is a composition containing 1 to 99 wt .-% of a collector for silicate flotation, which is an alkyl ether, alkyletherdiamine, alkylamine or quaternary ammonium salt, and 1 to 99 wt .-% of a compound of formula 1.
  • a collector for silicate flotation which is an alkyl ether, alkyletherdiamine, alkylamine or quaternary ammonium salt, and 1 to 99 wt .-% of a compound of formula 1.
  • the compound of formula 1 is also referred to below as a collector according to the invention.
  • the collector according to the invention can be used alone or in combination with other nitrogen-containing compounds for the flotation of silicate, in particular iron ore, phosphate or calcium carbonate.
  • Preferred nitrogen-containing compounds are alkyl ether amines, alkyl ether diamines, alkyl amines or quaternary ammonium salts.
  • the ratio of alkyletheramine, alkyletherdiamine, alkylamine or quaternary ammonium salt to compound of the formula is preferably between 95: 5 and 50:50 by weight.
  • R is a linear or branched hydrocarbon group. It is further preferred that R comprises 8 to 18 carbon atoms. Particularly preferred are 2-ethylhexyl, isononane, isodecane and Isotridekan- and dodecane radicals.
  • the silicate flotation collectors which are an alkyl ether amine, alkyl ether diamine, alkyl amine or quaternary ammonium salt, and which may be used together with a compound of formula 1, are preferably one or more of the compounds of formulas (II) to (V) ).
  • 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.
  • hydrophilic polysaccharides such as, for example, modified starch, carboxymethylcellulose or gum arabic in dosages of from 10 to 1000 g / t as a pusher.
  • the silicate flotation is preferably carried out at a pH of 7 to 12, in particular 8 to 11, which is set, for example, with sodium hydroxide.
  • the use according to the invention can be carried out both in direct and in reverse silicate flotation.
  • the use according to the invention is also suitable for liberating silicate sand from impurities by flotatively separating the silicate sand from the impurities using the compound of formula 1.
  • Table 1 presents the flotative results of the collector B according to the invention in comparison to the standard reagent A.
  • the flotation experiments were carried out on a silicate-containing calcium carbonate, the acid-insoluble constituents in the task accounting for 14.9%.
  • the reagent according to the invention in Example 6 already at a low dosage of only 121 g / t shows a much lower proportion of acid-insoluble constituents in the purified concentrate, which the standard reagent only reaches above 400 g / t.
  • the reagent according to the invention behaves analogously with regard to the degree of whiteness. This is already at the low dosage 92.0, which is achieved with the standard reagent only with three to four times the amount used.
  • Table 2 Effectiveness of a mixture of the collector B according to the invention and the standard collector A.
  • Examples 7 to 10 represent mixtures containing 10% of the collector B according to the invention and 90% of the standard collector A.
  • Examples 11 to 16 show mixtures containing about 29% of the collector B according to the invention and about 71% of the standard collector A, represents.
  • the flotation reagent according to the invention can be used in a wide pH range, for example 6 to 12, preferably 6 to 8, and is added to the aqueous slurry in a concentration of preferably between 0.001 and 1.0 kg / ton of crude mineral.

Landscapes

  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Detergent Compositions (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Claims (13)

  1. Utilisation d'un composé de formule

            R-N-[A-NH2]2     (1)

    dans laquelle R signifie un groupe alkyle ou alcényle linéaire ou ramifié comprenant 6 à 20 atomes de carbone et A signifie un groupe propylène (-C3H6-), comme agent d'agglomération dans la flottation des silicates.
  2. Utilisation selon la revendication 1, R étant un radical hydrocarboné linéaire aliphatique comprenant 8 à 18 atomes de carbone.
  3. Utilisation selon la revendication 1 et/ou 2, R étant un radical 2-éthylhexane, isononane, isodécane, décane, dodécane ou isotridécane.
  4. Utilisation selon l'une ou plusieurs des revendications 1 à 3 pour la flottation inverse de minéraux silicatés provenant de minerai de fer, de minerai de phosphate ou de carbonate de calcium.
  5. Utilisation selon l'une ou plusieurs des revendications 1 à 4 pour la purification de sable silicieux.
  6. Utilisation selon l'une ou plusieurs des revendications 1 à 4 lors de la flottation de quartz, de mica, de feldspath ou de muscovite provenant de minerai de fer, de carbonate de calcium ou de minerai de phosphate.
  7. Utilisation selon l'une ou plusieurs des revendications 1 à 6 lors de la flottation de minéraux silicatés, le minerai contenant entre 0,1 et 50% en poids de silicate.
  8. Utilisation selon l'une ou plusieurs des revendications 1 à 7 en combinaison avec des agents moussants et des agents déprimants.
  9. Utilisation selon l'une ou plusieurs des revendications 1 à 8 dans une plage de pH de 7 à 12.
  10. Utilisation selon l'une ou plusieurs des revendications 1 à 9 en des quantités de 0,001 à 1,0 kg par tonne de minerai brut.
  11. Utilisation selon l'une ou plusieurs des revendications 1 à 10, au moins un autre agent d'agglomération de silicates contenant de l'azote étant présent en plus du composé de formule 1, choisi dans le groupe formé par les alkylétheramines, les alkylétherdiamines, les alkylamines et les sels d'ammonium quaternaire.
  12. Composition contenant 1 à 99% en poids d'un agent d'agglomération pour la flottation de silicates, qui est une alkylétheramine, une alkylétherdiamine, une alkylamine ou un sel d'ammonium quaternaire, ainsi que 1 à 99% en poids d'un composé de formule 1

            R-N-[A-NH2]2     (1)

    dans laquelle R signifie un groupe alkyle ou alcényle linéaire ou ramifié comprenant 6 à 20 atomes de carbone et A signifie un groupe propylène (-C3H6-).
  13. Procédé pour la flottation d'un minéral silicaté, en ce qu'on met en contact le minéral silicaté avec au moins un réactif de flottation selon la formule 1

            R-N-[A-NH2]2     (1)

    dans laquelle R signifie un groupe alkyle ou alcényle linéaire ou ramifié comprenant 6 à 20 atomes de carbone et A signifie un groupe propylène (-C3H6-).
EP07724263.4A 2006-04-27 2007-04-16 Réactif de flottation pour minéraux silicatés Not-in-force EP2012929B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006019561A DE102006019561A1 (de) 2006-04-27 2006-04-27 Flotationsreagenz für silikathaltige Mineralien
PCT/EP2007/003325 WO2007124853A1 (fr) 2006-04-27 2007-04-16 Réactif de flottation pour minéraux silicatés

Publications (2)

Publication Number Publication Date
EP2012929A1 EP2012929A1 (fr) 2009-01-14
EP2012929B1 true EP2012929B1 (fr) 2013-12-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724263.4A Not-in-force EP2012929B1 (fr) 2006-04-27 2007-04-16 Réactif de flottation pour minéraux silicatés

Country Status (11)

Country Link
US (1) US8172089B2 (fr)
EP (1) EP2012929B1 (fr)
AU (1) AU2007245895B2 (fr)
BR (1) BRPI0710802A2 (fr)
CA (1) CA2650392C (fr)
DE (1) DE102006019561A1 (fr)
ES (1) ES2444409T3 (fr)
NO (1) NO20084515L (fr)
RU (1) RU2440854C2 (fr)
WO (1) WO2007124853A1 (fr)
ZA (1) ZA200808846B (fr)

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DE102006010939A1 (de) * 2006-03-09 2007-09-13 Clariant International Limited Flotationsreagenz für Silikate
BRPI0705593B1 (pt) * 2007-11-22 2016-04-12 Univ Minas Gerais método de quantificação de aminas em resíduos de flotação de minério de ferro
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
CN101869874A (zh) * 2009-04-22 2010-10-27 莱芜市金石特种合金材料有限公司 高纯铁精矿粉用浮选药剂
DE102010004893A1 (de) * 2010-01-19 2011-07-21 Clariant International Limited Flotationsreagenz für magnetit- und/oder hämatithaltige Eisenerze
CA2831171C (fr) * 2011-04-13 2019-06-18 Basf Se Composes diamine et leur utilisation pour la flottation inverse de silicate a partir de minerai de fer
EA023144B1 (ru) * 2011-04-13 2016-04-29 Басф Се Аминные и диаминные соединения и их применение для обратной пенной флотации силиката из железной руды
EP2679311A1 (fr) * 2012-06-30 2014-01-01 Clariant S.A., Brazil Prévention de mousse dans le processus de flottation inverse pour purifier le carbonate de calcium
CN103272699B (zh) * 2013-05-31 2015-05-27 北京矿冶研究总院 一种花岗岩型矿石的分离方法
CN103657859A (zh) * 2013-11-21 2014-03-26 成都兴能新材料有限公司 石英砂浮选除长石的方法
WO2016015109A1 (fr) * 2014-08-01 2016-02-04 Samarco Mineração S.a. Procédé et composition pour concentration de minerais de fer par flottation de mousse à partir de l'utilisation d'un mélange d'étherdiamine et d'éthermonoamine
WO2016065189A1 (fr) * 2014-10-23 2016-04-28 Georgia-Pacific Chemicals Llc Collecteurs cationiques de polyamidoamine et procédés de fabrication et d'utilisation de ceux-ci
US20160114338A1 (en) * 2014-10-23 2016-04-28 Georgia-Pacific Chemicals Llc Cationic collectors with mixed polyamidoamines and methods for making and using same
CA3028326A1 (fr) * 2016-07-08 2018-01-11 Akzo Nobel Chemicals International B.V. Procede de traitement de minerai de magnetite et composition collectrice
CN107899753B (zh) * 2017-10-09 2019-12-27 中南大学 一种无氟浮选分离石英和长石的阴离子组合捕收剂及其制备方法与应用
CN110152889A (zh) * 2019-06-04 2019-08-23 瓮福（集团）有限责任公司 一种硅钙质磷矿反浮选脱硅除杂组合捕收剂及其制备方法和应用
MX2024010430A (es) 2022-03-25 2024-09-05 Clariant Int Ltd Nuevos colectores cationicos para mejorar un proceso de flotacion por espuma de silicatos.
CN115957891A (zh) * 2022-08-30 2023-04-14 武汉工程大学 一种磷石膏浮选净化方法
CN115957894B (zh) * 2022-10-24 2024-11-05 郑州大学 一种磷石膏增白提纯工艺
CN117258995B (zh) * 2023-09-19 2024-03-22 安徽省地质实验研究所(国土资源部合肥矿产资源监督检测中心) 一种从花岗伟晶岩选矿尾矿中提取低铁高纯石英和长石的方法

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Also Published As

Publication number Publication date
ZA200808846B (en) 2009-12-30
US20090152174A1 (en) 2009-06-18
BRPI0710802A2 (pt) 2011-08-23
RU2440854C2 (ru) 2012-01-27
RU2008146768A (ru) 2010-06-10
US8172089B2 (en) 2012-05-08
NO20084515L (no) 2008-11-04
CA2650392A1 (fr) 2007-11-08
DE102006019561A1 (de) 2007-10-31
WO2007124853A1 (fr) 2007-11-08
AU2007245895B2 (en) 2010-09-02
ES2444409T3 (es) 2014-02-24
EP2012929A1 (fr) 2009-01-14
CA2650392C (fr) 2014-01-07
AU2007245895A1 (en) 2007-11-08

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