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WO1995003891A1 - Collecteurs a base de monosulfonate d'aryle ether utiles pour la flottation de mineraux - Google Patents

Collecteurs a base de monosulfonate d'aryle ether utiles pour la flottation de mineraux Download PDF

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Publication number
WO1995003891A1
WO1995003891A1 PCT/US1994/008532 US9408532W WO9503891A1 WO 1995003891 A1 WO1995003891 A1 WO 1995003891A1 US 9408532 W US9408532 W US 9408532W WO 9503891 A1 WO9503891 A1 WO 9503891A1
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Prior art keywords
sulfonic acid
collector
sulfonic
flotation
acid
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.)
Ceased
Application number
PCT/US1994/008532
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English (en)
Inventor
Richard R. Klimpel
Kevin A. Frazier
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Dow Chemical Co
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Dow Chemical Co
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Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Priority to AU74761/94A priority Critical patent/AU7476194A/en
Publication of WO1995003891A1 publication Critical patent/WO1995003891A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • B03D1/012—Organic compounds containing sulfur
    • 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
    • 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
    • B03D2203/025—Precious metal ores

Definitions

  • This invention is related to the use of chemical collectors in the recovery of minerals by froth flotation.
  • Minerals and their associated ores are generally categorized as sulfides or oxides, with the latter group comprised of oxygen-containing species such as carbonates, hydroxides, sulfates and silicates.
  • This invention is a process for the recovery of minerals by froth flotation characterized by the use of a collector comprising a sulfonic component, and
  • the sulfonic component selected from alkylaryl alkyl ether sulfonic acids or salts thereof; mono C 16-24 alkylated phenol sulfonic acids or salts thereof; and alkylene oxide derivatives of C 16-24 alkylated phenol sulfonic acids or salts thereof.
  • the recovered minerals may be the minerals that are desired or may be undesired contaminants.
  • froth flotation process of this invention may utilize other collectors, frothers and other flotation reagents known in the art.
  • Non-limiting examples of oxide ores which may be floated using the practice of this invention
  • oxygen-containing minerals which may be floated using the practice of this invention include carbonates such as calcite or dolomite and hydroxides such as bauxite.
  • Non-limiting examples of specific oxide ores which may be collected by froth flotation using the process of this invention include those containing cassiterite, hematite, cuprite, vallerite, calcite, talc, kaolin, apatite, dolomite, bauxite, spinel, corundum, laterite, azurite, rutile, magnetite,
  • columbite ilmenite, smithsonite, anglesite, scheelite, chromite, cerussite, pyrolusite, malachite, chrysocolla, zincite, massicot, bixbyite, anatase, brookite,
  • tungstite tungstite, uraninite, gummite, brucite, manganite, psilomelane, goethite, limonite, chrysoberyl, microlite, tantalite, topaz and samarskite.
  • the process of this invention is also useful in the flotation of sulfide ores.
  • sulfide ores which may be floated by the process of this invention include those containing chalcopyrite,
  • such metals may be recovered in good yield.
  • Ores do not always exist purely as oxide ores or as sulfide ores. Ores occurring in nature may comprise both sulfur-containing and oxygen-containing minerals as well as small amounts of noble metals as discussed above. Minerals may be recovered from these mixed ores by the practice of this invention. This may be done in a two-stage flotation where one stage
  • both the sulfur-containing and oxygen-containing minerals may be recovered
  • the collectors of this invention permits the separation of small amounts of undesired minerals from the desired minerals.
  • the presence of apatite is frequently a problem in the flotation of iron as is the presence of topaz or tourmaline in the flotation of cassiterite.
  • the collectors of the present invention are, in some cases, useful in reverse flotation where the undesired mineral is floated such as floating topaz or tourmaline away from cassiterite or apatite from iron.
  • the flotation process and collector composition of this invention are useful in the flotation of
  • waste materials from other sources are the waste materials from various processes such as heavy media separation, magnetic separation, metal working and petroleum processing. These waste materials often contain minerals that may be recovered using the
  • the compounds useful as collectors in the practice of this invention include alkylaryl alkyl ether sulfonic acids and salts thereof; mono C 12-24 alkylated phenol sulfonic acids and salts thereof; and alkylene oxide derivatives of alkylated phenol sulfonic acids and salts thereof.
  • These compounds preferably correspond to the following formula: wherein Ar is benzene, napthalene, anthracene and compounds corresponding to the formula:
  • X represents a covalent bond (i.e., biphenyl); ⁇ (CO) ⁇ ; or R 3 wherein R 3 is a linear or branched alkyl divalent moiety having one to three carbon atoms; R 1 is a C 1-30 linear or branched alkyl group; R 2 is hydrogen, a C 1-30 linear, branched or cyclic alkyl group or
  • the M + ammonium ion radicals are of the formula (R') 3 HN + wherein each R' is independently hydrogen, a C 1 -C 4 alkyl or a C 1 -C 4 hydroxyalkyl radical.
  • Illustrative C 1 -C 4 alkyl and hydroxyalkyl radicals include methyl, ethyl, propyl, isopropyl, butyl, hydroxymethyl and
  • ammonium ion radicals include ammonium (N + H 4 ), methylammonium (CH 3 N + H 3 ), ethylammonium (C 2 H 5 N + H 3 ), dimethylammonium ((CH 3 ) 2 N + H 2 ), methylethylammonium (CH 3 N + H 2 C 2 H 5 ), trimethylammonium ((CH 3 ) 3 N + H), dimethylbutylammonium ((CH 3 ) 2 N + HC 4 H 9 ),
  • Ar is a benzene ring.
  • R 1 is a C 16-24 linear or branched alkyl group and R 2 is hydrogen or a C 1-4 linear or branched alkyl group.
  • R 1 is preferably linear and attached to Ar through a carbon atom other than a terminal atom.
  • M is preferably hydrogen, sodium, calcium, potassium or ammonium. It should be noted that if R 1 is lower alkyl, i.e., C 1-4 , then R 2 must be C 12 or greater so that the total carbon content is from C 16-24 .
  • R 1 is a
  • R 4 is hydrogen, methyl or ethyl.
  • M is preferably hydrogen, sodium, calcium, potassium or ammonium.
  • the collectors useful in the practice of this invention have a single sulfonation.
  • Ar is an aromatic group having more than one ring, it is possible to have additional sulfonations, depending on the manner in which the molecule is
  • sulfonation is acceptable, a substantial portion of the molecules of the collector of the present invention must be monosulfonated.
  • substantial portion it is meant that at least 20 percent, more preferably at least
  • collectors of this invention may be in acid or salt form and, in general, any reference to sulfonic acid includes the sulfonate and any reference to the sulfonate includes the sulfonic acid.
  • alkylaryl alkyl ether sulfonic acids useful as collectors include octadecyl anisole sulfonic acid, C 20-24 alkylated anisole sulfonic acid, C 24-28 alkylated anisole sulfonic acid, dodecyl anisole sulfonic acid, hexadecylphenyl butyl ether sulfonic acid, octadecylphenyl butyl ether sulfonic acid, C 20-24 alkylphenyl butyl ether sulfonic acid, octadecyloxy cumene sulfonic acid, octadecyloxy toluene sulfonic acid, C 18-24 alkylatedphenyl isopropyl ether sulfonic acid, sulfonic acid of C 20-24 alkylphenol, sulfonic acid of octadecylphenol, sul
  • the collector is an alkylated phenol sulfonic acid or salt thereof, it is preferably sulfonic acid of octadecylphenol or sulfonic acid of
  • the collector is an alkylene oxide derivative of an alkylated phenol sulfonic acid or salt thereof, it is preferred that it corresponds to the formula: wherein R 5 n is a C 20 to C 24 alkyl group, n is 1 or 2 and R 6 is ⁇ (CH 2 CH 2 O) m H wherein m is 1 or 2; or wherein R 5 is a C 12 to C 16 alkyl group and R 6 is ⁇ (CH 2 CHR 7 O) m H wherein R 7 is methyl or ethyl, preferably methyl and m is 1 or 2
  • alkylaryl alkyl ether sulfonic acids or salts thereof of this invention may be made by
  • materials such as anisole or phenetole may be alkylated on the aromatic ring via Friedel-Crafts chemistry using alkylating agents such as alpha-olefins, alkylhalides or alkyl alcohols.
  • alkylating agents such as alpha-olefins, alkylhalides or alkyl alcohols.
  • Typical catalysts include Lewis acids, mineral acids and the acid form of sulfonated polystyrene beads.
  • the ether may be prepared by 0-alkylating an alkylated phenol with an alkyl halide under basic conditions, either prior or post sulfonation.
  • the alkylaryl alkyl ether may be sulfonated either prior to or following alkylating the aryl ring, but it is more practical to perform the sulfonation step last.
  • Sulfonation can be accomplished using established methods such as through the use of sulfur trioxide in methylene chloride, sulfur trioxide in air, or chlorosulfonic acid in methylene chloride.
  • the alkylated phenol sulfonic acid or salt thereof may be prepared by sulfonation of the corresponding alkylated phenol.
  • Sulfonation can be accomplished using established methods such as through the use of sulfur trioxide in methylene chloride, sulfur trioxide in air, or chlorosulfonic acid in methylene chloride.
  • the alkylene oxide derivative of an alkylated phenol sulfonic acid or salt thereof may be prepared by known methods.
  • the corresponding alkyl phenol may be capped with the appropriate alkylene oxide equivalents prior to sulfonation using known methods.
  • the collector of this invention may be used as the only collector or it may be used in conjunction with other collectors.
  • One example where the collector of this invention is not used alone as a collector is when it is used in combination with a carboxylic component.
  • the carboxylic component is a C 1-24 carboxylic acid or salt thereof. Examples of useful materials include acetic acid, citric acid, tartaric acid, maleic acid, oxalic acid, ethylenediamine dicarboxylic acid,
  • Fatty acids or their salts are particularly preferred.
  • Illustrative examples of such acids include oleic acid, linoleic acid, linolenic acid, myristic acid, palmitic acid, strearic acid, palmitoleic acid, caprylic acid, capric acid, lauric acid and mixtures thereof.
  • One example of a mixture of fatty acids is tall oil.
  • Preferred fatty acids include oleic acid, linoleic acid, linolenic acid and mixtures thereof.
  • the fatty acids may be used in the acid form or may be used in salt form.
  • the terms "acid” and"carboxylate” include both the acid and salt form.
  • the amount of carboxylic component is preferably at least 1 weight percent, more preferably at least 2 weight percent and most preferably at least 5 weight percent, based on the combined weight of the sulfonic acid or salt and the carboxylic component. The maximum amount of carboxylic component used is
  • the optimum amount of carboxylic component used depends on the degree of hardness of the water used in flotation, the minerals to be recovered and other variables in the flotation process.
  • the carboxylic component may be added to the flotation system prior to the addition of the collector of the present invention or they may be added
  • the collector composition may be formulated in a water based mixture or a hydrocarbon based mixture, depending on the
  • the sulfonic component and/or the carboxylic component are in the salt form.
  • a hydrocarbon based formulation one or both of the components is in the acid form.
  • Typical hydrocarbon formulations include any saturated hydrocarbon, kerosene, fuel oil, alcohol, alkylene oxide compound, or organic solvents such as dodecene, dimethylsulfoxide, limonene and dicyclopentadiene.
  • both the sulfonic and carboxylic components are in either the salt form or the acid form. Mixed formulations where one is a salt and the other an acid are possible, but are generally not preferred.
  • the collector can be used in any concentration which gives the desired selectivity and recovery of the desired mineral values.
  • concentration used is dependent upon the particular mineral to be recovered, the grade of the ore to be subjected to the froth flotation process and the desired quality of the mineral to be recovered.
  • a particular advantage of the present invention is the effectiveness of the collector at low dosage levels.
  • Additional factors to be considered in determining dosage levels include the amount of surface area of the ore to be treated. As will be recognized by one skilled in the art, the smaller the particle size, the greater the surface area of the ore and the greater the amount of collector reagents needed to obtain adequate recoveries and grades.
  • oxide mineral ores must be ground finer than sulfide ores and thus require very high collector dosages or the removal of the finest particles by desliming.
  • Conventional processes for the flotation of oxide minerals typically require a desliming step to remove the fines present and thus permit the process to function with acceptable collector dosage levels.
  • the collector of the present invention functions at acceptable dosage levels with or without desliming.
  • the concentration of the collector is at least 0.001 kg/metric ton, more preferably at least 0.05 kg/metric ton. It is also preferred that the total concentration of the collector is no greater than 5.0 kg/metric ton and more preferred that it is no greater than 2.5 kg/metric ton.
  • the concentration of the collector is at least 0.001 kg/metric ton, more preferably at least 0.05 kg/metric ton. It is also preferred that the total concentration of the collector is no greater than 5.0 kg/metric ton and more preferred that it is no greater than 2.5 kg/metric ton.
  • collector dosages are required depending on the type of ore and other conditions of flotation. Additionally, the collector dosage required has been found to be related to the amount of mineral to be collected. In those situations where a small amount of a mineral susceptible to flotation using the process of this invention is present, a very low collector dosage is needed due to the selectivity of the collector.
  • staged addition it is meant that a part of the collector dose is added; froth concentrate is collected; an additional portion of the collector is added; and froth concentrate is again collected.
  • the total amount of collector used is preferably not changed when it is added in stages. This staged addition can be repeated several times to obtain optimum recovery and grade. The number of stages in which the collector is added is limited only by
  • An additional advantage of staged addition is related to the ability of the collector of the present invention to differentially float different minerals at different dosage levels. At low dosage levels, one mineral particularly susceptible to flotation by the collector of this invention is floated while other minerals remain in the slurry. At an increased dosage, a different mineral is floated thus permitting the separation of different minerals contained in a given ore.
  • additives include various depressants and dispersants well known to those skilled in the art.
  • hydroxy-containing compounds such as alkanol amines is useful in improving the selectivity to the desired mineral values in systems containing silica or siliceous gangue.
  • frothers are preferably used.
  • frothers are well known in the art and reference is made thereto for the purposes of this invention.
  • useful frothers include polyglycol ethers and lower molecular weight frothing alcohols.
  • the collectors of this invention may be used with a
  • hydrocarbon as an extender.
  • hydrocarbons useful in this context include those hydrocarbons typically used in flotation such as fuel oil, kerosene and motor oil.
  • the collectors of this invention may also be used in conjunction with other collectors. It has been found that in the flotation of sulfide mineral containing ores, the use of the
  • collectors such as xanthates, dithiol phosphates and trithiol carbonates is advantageous.
  • collectors of this invention may also be used in conjunction with other conventional collectors in other ways.
  • the collectors of this invention may be used in a two-stage flotation in which the collector of this invention recovers primarily oxide minerals while a second stage flotation using
  • a two-stage flotation may be used wherein the first stage comprises the process of this invention and is done at the natural pH of the slurry.
  • the second stage involves
  • a particular advantage of the collector of the present invention is that additional additives are not required to adjust the pH of the flotation slurry.
  • the flotation process utilizing the collector of the present invention operates effectively at typical natural ore pH's ranging from 5 or lower to 9. This is particularly important when considering the cost of reagents needed to adjust slurry pH from a natural pH of around 7.0 or lower to 9.0 or 10.0 or above which is typically
  • collectors As noted above, a collector composition comprising the collector of the present invention and a xanthate collector is effective at a lower pH than a xanthate collector used alone.
  • the ability of the collector of the present invention to function at relatively low pH means that it may also be used in those instances where it is desired to lower the slurry pH.
  • the lower limit on the slurry pH at which the present invention is operable is that pH at which the surface charge on the mineral species is suitable for attachment by the collector.
  • the collector of the present invention functions at different pH levels, it is possible to take advantage of the tendency of different minerals to float at different pH levels. This makes it possible to do one flotation run at one pH to optimize flotation of a particular species. The pH can then be adjusted for a subsequent run to optimize flotation of a different species thus facilitating separation of various minerals found together.
  • the following examples are provided to illustrate the invention and should not be interpreted as limiting it in any way. Unless stated otherwise, all parts and percentages are by weight. The following examples include work involving Hallimond tube flotation and flotation done in
  • Hallimond tube flotation is a simple way to screen collectors, but does not necessarily predict the success of collectors in actual flotation. Hallimond tube flotation does not involve the shear or agitation present in actual flotation and does not measure the effect of frothers. Thus, while a collector generally must be effective in a Hallimond tube flotation if it is to be effective in actual flotation, a collector
  • Hallimond tube are often substantially higher than those required in a flotation cell test. Thus, the Hallimond tube work cannot precisely predict dosages required in an actual flotation cell.
  • alkylated anisole sulfonic acid with the alkyl group being a C 20- C 24 alkyl; a C 24- C 28 alkyl; a dodecyl group; and a hexadecyl group.
  • Phenol (25.5 g), octadec-1-ene (63 g) and dry, strong cationic ion exchange resin (protonated form) (2.5 g) were heated at about 100°C for 24 hours. The resin was removed by filtration and the product
  • This technique was also used to prepare an alkylphenyl butyl ether sulfonic acid wherein the alkyl group was a C 20- C 24 alkyl.
  • Octadecyloxy toluene sulfonic acid was prepared in a manner similar to that used for the preparation of octadecylphenyl butyl ether sulfonic acid. In a similar manner a C 18- C 24 alkylphenyl isopropyl ether sulfonic acid, an isopropylphenyl octadecyl ether sulfonic acid, a nonylphenyl tridecyl ether sulfonic acid and
  • decylphenyl butyl ether sulfonic acid were prepared. n-Octadecylphenol Butyl Ether Sulfonic Acid
  • Phenyl butyl ether (7.5 g) and aluminum chloride (6.67 g) were dissolved in 100 m of hexane.
  • Stearoyl chloride (15.15 g) dissolved in 25 ml of hexane was added dropwise to the mixture.
  • temperature of the mixture rose from room temperature to about 45°C.
  • the mixture was poured slowly into a mixture of ice and water and a sticky tan solid formed after vigorous stirring. This solid dissolved upon the addition of about 75 ml of hexane and 200 ml of THF
  • This product was mixed with 27.4 g of
  • Phenol (47 g), dry, strong cationic ion exchange resin (protonated form) (2.5 g), and a C 20-24 olefin were heated at 105°C for several hours under a nitrogen stream.
  • the reaction mixture was cooled and filtered.
  • the resin was washed with anhydrous ether to remove all the reaction materials from the resin and the ether and excess phenol were removed at reduced
  • collectors were prepared: octadecylphenol, sulfonic acid, sodium salt; hexadecylphenol, sulfonic acid, sodium salt;
  • dodecylphenol, sulfonic acid, sodium salt dodecylphenol, sulfonic acid, sodium salt.
  • Octadecylphenol 5 g, 14.4 mmol
  • ethylene carbonate 1,27 g, 14.4 mmol
  • potassium fluoride 0.25 g
  • Octadecyl ⁇ -hydroxypropoxybenzene sulfonic acid, sodium salt was prepared in a similar manner.
  • Table I identifies the collectors prepared as discussed above and used in the following examples.
  • a 1.0-g portion of the deslimed mineral was added along with deionized water to bring the total volume to about 180 ml.
  • the specified collector was added and allowed to condition with stirring for 15 minutes.
  • the pH was monitored and adjusted as necessary using HCl and NaOH. All collectors indicated were converted to the Na + salt form before addition.
  • the collector dosage in all tests was 1.0 g per 1.0 kg of pure mineral.
  • the slurry was transferred into a Hallimond tube designed to allow a hollow needle to be fitted at the base of the 180-ml tube. After the addition of the slurry to the Hallimond tube, a vacuum of 5 inches of mercury was applied to the opening of the tube for a period of 10 minutes.
  • the collectors used are octadecyl anisole sulfonic acid (IV in Table I), the sodium salt of octadecylphenol, sulfonic acid (VI in Table I), and the octadecylphenol capped with one ethylene oxide unit (XIII in Table I). The results are shown in Table II below.
  • the pH of the slurry was left at natural ore pH of 6.7. After addition of the collector (in the sodium salt form) as shown in Table IV, the slurry was allowed to condition for 1 minute. Next, the frother, a polyglycol ether available commercially from The Dow
  • the float cell was agitated at 1800 RPM and air was introduced at a rate of 2.7 liters per minute.
  • the froth concentrate was collected by standard hand paddling for 4 minutes after the start of the
  • Each run was conducted at a natural ore slurry pH of 6.5.
  • the collector in the sodium salt form
  • Ore concentrate was collected by standard hand paddling between zero and 4 minutes.
  • a frother a polyglycol ether available commercially from The Dow Chemical Company as Dowfroth ® 250 brand frother, was added in an amount equivalent to 0.030 kg/ton of dry ore.
  • the float cell in all runs was agitated at 1800 RPM and air was introduced at a rate of 2.7 liters per minute. Samples of the concentrates and the
  • a series of 600-g samples of iron oxide ore from Michigan was prepared.
  • the ore contained a mixture of hematite, martite, goethite and magnetite mineral species.
  • Each 600-g sample was ground along with 400 g of deionized water in a rod mill at about 60 RPM for 10 minutes.
  • the resulting pulp was transferred to an Agitair 3000 ml flotation cell outfitted with an
  • Samples of the froth concentrate were collected at 4 minutes after the start of the air flow. Samples of the froth concentrate and the tailings were dried, weighed and pulverized for analysis. They were then dissolved in acid, and the iron content determined by the use of a D.C. Plasma Spectrometer. Using the assay data, the fractional recoveries and grades were calculated using standard mass balance formulas. The results are shown in Table VI below.

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  • Manufacture And Refinement Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé de flottation qui utilise comme collecteur un acide sulfonique d'alkylaryle alkyle éther, un acide sulfonique de phénol monoalkylaté ou un dérivé d'oxyde d'alkylène d'un acide sulfonique de phénol alkylaté. On peut citer parmi les collecteurs préférés incluent des acides sulfoniques de phénol monoalkylatés C16-24 et leurs sels.
PCT/US1994/008532 1993-07-29 1994-07-26 Collecteurs a base de monosulfonate d'aryle ether utiles pour la flottation de mineraux Ceased WO1995003891A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74761/94A AU7476194A (en) 1993-07-29 1994-07-26 Aryl ether monosulfonate collectors useful in the flotation of minerals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9981993A 1993-07-29 1993-07-29
US08/099,819 1993-07-29

Publications (1)

Publication Number Publication Date
WO1995003891A1 true WO1995003891A1 (fr) 1995-02-09

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AU (1) AU7476194A (fr)
FI (1) FI943509L (fr)
PE (1) PE6695A1 (fr)
TR (1) TR28785A (fr)
WO (1) WO1995003891A1 (fr)
ZA (1) ZA945513B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
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CN100366346C (zh) * 2005-11-28 2008-02-06 中国铝业股份有限公司 一种铝土矿的选矿方法
CN100382894C (zh) * 2005-11-01 2008-04-23 中南大学 一种铝土矿的梯度浮选方法
CN100398216C (zh) * 2006-07-06 2008-07-02 中国铝业股份有限公司 一种铝土矿浮选脱硫脱硅的方法
CN107051711A (zh) * 2017-04-10 2017-08-18 中国铝业股份有限公司 一种铝土矿选尾矿再选的方法
CN107694762A (zh) * 2017-11-10 2018-02-16 中南大学 一种从矿石中浮选捕收金红石的组合物及浮选方法
CN119016206A (zh) * 2024-10-15 2024-11-26 昆明理工大学 一种在自然酸碱条件下硫化铜矿石无捕收剂的浮选分离方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2230565A (en) * 1938-09-01 1941-02-04 Standard Oil Dev Co Mineral concentration process
GB584206A (en) * 1944-01-04 1947-01-09 Commw Council For Scient And I Process for the recovery of cassiterite from ores
US4172029A (en) * 1978-05-11 1979-10-23 The Dow Chemical Company Phosphate flotation process
EP0453676A1 (fr) * 1990-02-23 1991-10-30 The Dow Chemical Company Oxydes d'alkyl-diaryle monosulfonés comme collecteurs pour la flottation des minerais

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230565A (en) * 1938-09-01 1941-02-04 Standard Oil Dev Co Mineral concentration process
GB584206A (en) * 1944-01-04 1947-01-09 Commw Council For Scient And I Process for the recovery of cassiterite from ores
US4172029A (en) * 1978-05-11 1979-10-23 The Dow Chemical Company Phosphate flotation process
EP0453676A1 (fr) * 1990-02-23 1991-10-30 The Dow Chemical Company Oxydes d'alkyl-diaryle monosulfonés comme collecteurs pour la flottation des minerais

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100382894C (zh) * 2005-11-01 2008-04-23 中南大学 一种铝土矿的梯度浮选方法
CN100366346C (zh) * 2005-11-28 2008-02-06 中国铝业股份有限公司 一种铝土矿的选矿方法
CN100398216C (zh) * 2006-07-06 2008-07-02 中国铝业股份有限公司 一种铝土矿浮选脱硫脱硅的方法
CN107051711A (zh) * 2017-04-10 2017-08-18 中国铝业股份有限公司 一种铝土矿选尾矿再选的方法
CN107051711B (zh) * 2017-04-10 2019-09-13 中国铝业股份有限公司 一种铝土矿选尾矿再选的方法
CN107694762A (zh) * 2017-11-10 2018-02-16 中南大学 一种从矿石中浮选捕收金红石的组合物及浮选方法
CN119016206A (zh) * 2024-10-15 2024-11-26 昆明理工大学 一种在自然酸碱条件下硫化铜矿石无捕收剂的浮选分离方法

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AU7476194A (en) 1995-02-28
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TR28785A (tr) 1997-03-06
ZA945513B (en) 1996-01-26
PE6695A1 (es) 1995-03-13

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