EP0298392A2 - Procédé et agents pour l'obtention par flottation de minéraux à partir de minerais sulfurés - Google Patents

Procédé et agents pour l'obtention par flottation de minéraux à partir de minerais sulfurés Download PDF

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Publication number
EP0298392A2
EP0298392A2 EP88110551A EP88110551A EP0298392A2 EP 0298392 A2 EP0298392 A2 EP 0298392A2 EP 88110551 A EP88110551 A EP 88110551A EP 88110551 A EP88110551 A EP 88110551A EP 0298392 A2 EP0298392 A2 EP 0298392A2
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Prior art keywords
flotation
compound
collector
alkyl
carbon atoms
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EP88110551A
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German (de)
English (en)
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EP0298392A3 (fr
Inventor
James Murdoch Wright Mackenzie
Peter John Cabassi
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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Publication of EP0298392A2 publication Critical patent/EP0298392A2/fr
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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
    • 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
    • B03D1/014—Organic compounds containing phosphorus
    • 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
    • B03D2203/025—Precious metal ores

Definitions

  • the invention relates to a flotation process for extracting minerals, in particular sulfidic minerals such as pyrite, chalcopyrite and pentlandite, and gold from ores.
  • the invention further relates to a collector mixture and flotation aids which contain this collector mixture.
  • a process for the extraction of minerals from ores by flotation in which ground ore is mixed with water to form an ore suspension (slurry), air is introduced into the suspension in the presence of a collector system and the resulting foam together with the ore content contained therein separates.
  • This method is characterized in that, as a collector, a mixture containing at least one amine compound A from that of unsubstituted primary and secondary amines of the formulas I and II, RNH2 (I) R1 R2 NH (II) - in which R, R1 and R2 each represent alkyl or alkenyl radicals having 8 to 22 carbon atoms, and water-soluble salts of the above-mentioned primary and secondary amines and - At least one thio compound B from the group formed from xanthates, the dithiophosphates, mercaptobenzthiazoles, xantogen formates (alkyl carbonic acid-alkyl xanthogen anhydrides) and thionocarbamates starts.
  • the invention further provides a collector mix for use in the extraction of minerals from ores by flotation containing at least one amine compound A from that of unsubstituted primary and secondary amines of the formulas I and II, RNH2 (I) R1R2 NH (II) in which R, R1 and R2 each represent alkyl or alkenyl radicals having 8 to 22 carbon atoms, and water-soluble salts of the above-mentioned primary and secondary amines and - At least one thio compound B from xanthates, dithiophosphates, mercaptobenzthiazoles, xanthogen formates (alkyl carbonic acid alkyl xanthogenic anhydrides) and thionocarbamates formed group.
  • a collector mix for use in the extraction of minerals from ores by flotation containing at least one amine compound A from that of unsubstituted primary and secondary amines of the formulas I and II, RNH2 (I) R1R2 NH (
  • the unsubstituted primary and secondary amines of the formulas I and II and their water-soluble salts used as amine compounds A are known compounds which can be prepared by known methods of organic synthesis.
  • the alkyl and alkenyl radicals R, R1 and R2 in the formulas I and II are preferably straight-chain, as is the case in the amines which are derived from naturally occurring fatty acids.
  • the radicals R, R1 and R2 are therefore preferably straight-chain octyl, decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl, docosyl, hexadecenyl, octadecenyl and docosenyl radicals.
  • the amines of the formulas I and II can be used as defined individual compounds. However, it is preferred to use compound mixtures in which the radicals R, R 1 and R 2 each have different chain lengths within the defined range of the carbon atoms present.
  • alkyl / alkenylamine of the formula I with 10 to 18 carbon atoms in the radical R and its water-soluble salts.
  • the alkyl / alkenyl residues of this amine mixture are derived from the uncured fatty acid mixture which is obtained from beef tallow by fat cleavage. This amine mixture is also known as "uncured tallow amine”.
  • water-soluble salts of the amines of the formulas I and II are used in the process according to the invention, these are in particular sulfates, phosphates, formates, propionates and preferably chlorides and acetates.
  • the amine compound A used is the acetate of the above-described primary alkyl / alkenylamine with 10 to 18 Carbon atoms.
  • the substances used as thio compounds B can be water-soluble or water-insoluble.
  • the xanthates, dithiophosphates and mercaptobenzothiazoles are water-soluble alkali metal salts.
  • the xanthogen formates and the thionocarbamates are water-insoluble, oily substances.
  • thio compounds B Xanthates of formula III, ROC (S) -S ⁇ X+ (III) in which R is an alkyl radical having 2 to 8 carbon atoms and X is Na or K, the thiophosphates of the formula IV, (RO) 2P (S) -S ⁇ X+ (IV) in which R is an alkyl radical of 2 to 8 carbon atoms and X is Na or K, Sodium or potassium salts of mercaptobenzothiazole, Xanthogen formates (alkyl carbonic acid-alkyl xanthogenic acid anhydrides) of the formula V, R1-OC (S) -SC (O) -O-R2 (V) in which R1 and R2 each represent an alkyl radical having 1 to 8 carbon atoms and Thionocarbamates of the formula VI, R1-OC (S) -NHR2 (VI) in which R1 and R2 each represent alkyl radicals having 1
  • the thio compounds B mentioned are known compounds which can be prepared by customary methods of organic synthesis.
  • the optimal effectiveness of the thio compounds B depends to a certain extent on the pH prevailing in the cloudy.
  • Mercaptobenzothiazoles, xanthogen formates and thionocarbamates can be used in the pH range from 2 to 11, with mercaptobenzthiazoles working best under relatively acidic conditions, while xanthogen formates and thionocarbamates are effective in both alkaline and acidic media.
  • Xanthates and dithiophosphates work best in a relatively alkaline medium in the pH range of 6 to 11.5. If a flotation process is to be carried out at a given pH value, this should be taken into account when selecting the thio compound B.
  • a corresponding pH in the turbidity must be set.
  • the weight ratio of amine compound A to thio compound B is in the range from 1: 9 to 9: 1, weight ratios from 1: 4 to 2: 1 being preferred.
  • the Amine compounds A are added to the ore suspension in amounts of 1 to 500 g per metric ton of ore and the thio compounds B in amounts of 1 to 500 g per metric ton of ore.
  • a foamer can be added to the slurry in order to stabilize the foam formed during the flotation.
  • Particularly suitable for this purpose are the alcohols, propylene glycols and ethers commonly used in flotation as foaming agents, for example methylisobutylcarbinol (4 methylpentanol-2), which is commercially available in 97% purity under the name MIBC, methylpolypropylene glycol ether, the molecular weight of which is approximately 200 on average and Triethoxybutane, which is commercially available under the name TEB.
  • Methyl isobutyl carbinol is preferred for the purposes of the invention.
  • the acidic or basic agents customary in flotation can be added, for example sodium silicate, lime (calcium oxide) and inorganic or organic acids. It is important to ensure that the means for adjusting the pH is selected according to the mineral to be extracted and the collector combination used in each case, so that a flotation medium of suitable acidity or alkalinity is obtained.
  • suitable, conventional pushers which have the task of preventing the flotation of undesired gangue minerals, can be added to the slurry.
  • the pushers connect to the gangue minerals, usually through adsorption, and prevent them from floating. In this way, the separation of the gangue minerals from the mineral to be extracted is promoted.
  • Suitable pushers guar gums and dextrins are particularly suitable for the process according to the invention. Particularly preferred here is a chemically modified guar gum with a linear chain of beta-D-mannopyranose units, which are 1,4-linked to single-link alpha-D-galactopyranosyl residues which appear as side chains.
  • the chemical modification includes the depolymerization of the guar gum to reduce the molecular weight and the substitution of hydroxyl groups in the guar structure by anionic groups.
  • the degree of substitution in a commercial product sold under the name ACROL® J2P 350 is 0.1.
  • customary activators can be added to the slurry in the process according to the invention.
  • Copper sulfate in particular, has proven to be suitable as an activator, which additionally has the property of modifying the structure of the foam formed favorably.
  • the usual flotation aids used in the process according to the invention in addition to the amine compounds A and the thio compounds B, such as foaming agents, pushers and activators, are added in the amounts of the slurry known and customary for such flotation processes.
  • the alkaline or acidic agents mentioned are used in the amounts which are necessary for setting the desired pH.
  • the collector mixture to be used in the process according to the invention can contain, in addition to the amine compounds A and the thio compounds B, further components which are known for their collector properties.
  • Hydrocarbon oils have proven to be particularly suitable for this purpose, in particular neutral aliphatic and aromatic solvents with boiling points in the range of 160 to 260 ° C. Hydrocarbon oils with a low aromatic content and a boiling range of 190 to 225 ° C. are preferred.
  • the amine compounds A, the thio compounds B and the other auxiliaries to be used in the process according to the invention can be added individually and in succession to the turbidity to be floated.
  • a mixture of flotation aids with a content of has proven to be particularly advantageous at least one amine compound A from that of unsubstituted primary and secondary amines of the formulas I and II, RNH2 (I) R1R2NH (II) in which R, R1 and R2 each represent alkyl or alkenyl radicals having 8 to 22 carbon atoms, and salts of the group formed above primary and secondary amines, - a neutral hydrocarbon oil and - a foamer in a weight ratio of (4-6): (3-5): 1 and for use in conjunction with at least one thiover bond B is determined from the group formed from xanthates, dithiophosphates, mercaptobenzothiazoles, xanthogen formates (alkylcarbonic acid-alkylxanthogenic acid anhydrides) and thiocarbamates.
  • the method of the invention is characterized by the use of a specific, defined collector combination.
  • the flotation is carried out under the general conditions known for the methods of the prior art.
  • the method of the invention is particularly suitable for use in sulfidic mineral ores and for the extraction of gold, platinum, uranium, copper, zinc, nickel, cobalt, silver, lead and iron.
  • Examples 1 to 9 relate to flotation processes with gold ore samples with the following composition or essentially corresponding to this composition:
  • composition of the gold ore is Composition of the gold ore:
  • the gear classification corresponds to that of conglomerates.
  • a primary alkyl- / alkenylamine of the formula RNH2 (I) with 10 to 18 carbon atoms (uncured tallow amine) is used as collector, in which the following chain length distribution applies to R: C10 - 0.5% C12 - 2.0% C14 - 3 - 5% C16 - 28 - 35% C18 - 58 - 67%
  • the iodine number is 35 to 55.
  • a certain amount of South African gold ore was ground with water to form a slurry with a particle size such that 70% of the particles passed through a sieve with 0.074 mm (200 mesh) openings.
  • the solids content of the slurry was 38% by weight and its density was 1.32.
  • Preflotation 10 and cleaning flotation 12 were carried out in a conventional manner in a Denver 12 laboratory flotation cell.
  • the flotation steps are shown in the form of a flow diagram in FIG. 1.
  • the preliminary flotation 10 was carried out in the usual way with a slurry 16 which contained water, ground ore and flotation aids.
  • the flotation aids comprised a xanthate and a primary amine, which together form a collector mixture (a) according to the invention, further a pusher (b) and copper sulfate (c). Details for the reagents are given below.
  • the additives (b), (c) and (d) were added separately to the slurry, as were the xanthate, amine and foaming constituents of the collector mixture (a).
  • the cleaning flotation 12 was carried out with a slurry after pre-flotation 22, which contained water and the concentrate after pre-cleaning 17 together with further proportions of activator / foam modifier and pusher of the additives (d) and (e) explained below.
  • the exits after cleaning 26 can be recirculated and added to the slurry before the pre-flotation 16.
  • Example 1 was repeated with the additives summarized in Table 3 below. Unless stated otherwise, the additives were added to the slurry originally used; the quantities given relate to g / metric ton of solid in the slurry originally used. Table 3 Summary of the display properties as well as the composition and amounts of the added additives for the pre- and cleaning flotation.
  • Flotation aids Collector: Na-n-propyl xanthate 50 g / t and primary amine acetate 25 g / t and Hydrocarbon oil * 20 g / t and Methyl isobutyl carbinol (MIBC; foamer) 5 g / t Additional foamer: DOWFROTH 200 20 g / t Pusher: ACROL® J2P 350 20 g / t for pre-flotation 10 g / t for cleaning flotation Activator / foam modifier: Copper sulfate 35 g / t for pre-flotation 5 g / t for cleaning flotation pH : 9.2 Flotation time : 15 min for pre-flotation 5 min for cleaning flotation *) Hydrocarbon oil with a boiling range of 190 to 225 ° C; Aromatics content of 0.5% V / V, density
  • the primary amine acetate was mixed with SHELLSOL K and MIBC before adding to the slurry.
  • a mixture of uncured primary tallow amine acetates, SHELLSOL K and MIBC has a liquid consistency and is therefore easier to handle than the amine itself (as used in Example 1), which has a paste-like consistency.
  • a quantity of the amine that was smaller by half was added to the slurry originally used; the results obtained are nevertheless advantageous compared to those of Example 1. It should be noted that the chemical expenditure for the flotation according to Example 2 is considerably lower than that of Example 1.
  • a commercially available collector mixture which is sold under the trade name TROCOL S50, was produced by mixing the following components: Weight ratio uncured primary tallow amine acetate 50% SHELLSOL K (neutral hydrocarbon oil) 40% MIBC 10%
  • a pre-flotation 30 was carried out in a Denver D12 laboratory flotation chamber in the usual manner and as shown in the flow diagram of FIG. 2.
  • the cloudy 34 consisted of: the ground ore in water, 150 g of the flotation aid mixture described above per metric ton of solid in the slurry, 50 g copper sulfate as activator / foam modifier per metric ton of solid in the slurry, and 100 g ACROL® J2P 350 as pusher per metric ton of solid in the slurry.
  • the pH of the slurry was between 10.1 and 10.4.
  • the slurry 34 gave a foam product with a pre-purification concentrate 38 that contained gold and other sulfidic minerals such as iron sulfide and was contaminated with a limited amount of the gangue minerals originally present in the ground ore, and exits from the pre-flotation 36 that contained the bulk of the gangue minerals.
  • a pre-purification concentrate 38 that contained gold and other sulfidic minerals such as iron sulfide and was contaminated with a limited amount of the gangue minerals originally present in the ground ore, and exits from the pre-flotation 36 that contained the bulk of the gangue minerals.
  • the concentrate 38 was separated from the outlets 36 in a conventional manner. Samples of the exits from pre-flotation 36 and concentrate 38 were dried and analyzed; the results are shown in Table 6.
  • Example 3 The flotation process according to Example 3 was not carried out in accordance with the process of the invention.
  • An amine compound A was added to the slurry 32 according to the definition of the collector mixture according to the invention, but no thio compound B was carried out.
  • Example 3 was carried out in order to enable comparisons to be made with the results of Examples 4 to 6 which were carried out according to the method of the invention.
  • Example 3 was repeated with the following deviations:
  • a collector combination according to the invention which contained a mixture of TROCOL S50 (see Example 3) and sodium methylxanthate in different weight ratios (according to Table 5 below); the flotation process was carried out at a pH of 9.5.
  • Example 7 was performed for comparison purposes only with a collector containing only sodium ethyl xanthate and no primary or secondary amine.
  • Table 5 Additives for the milled ore of Examples 3 to 7 (g / t solids in the original slurry)
  • foaming attempts included foaming a liquid mixture of sodium ethyl xanthate and a surfactant in a container with air bubbles passed through the liquid, foaming the foam over the rim of the container, collecting the foam and determining the concentration of xanthate present therein, determining the Concentration of the xanthate present in the remaining liquid in the container and calculation of the concentration factor of the xanthate in the foam.
  • Table 7 The results of these tests are shown in Table 7 below.
  • the concentration factor was calculated by dividing the xanthate concentration in the foam by the xanthate concentration in the remaining liquid.
  • Table 7 Surfactant added to the xanthate solution Trial No. pH Ratio of surfactant: xanthate at the initial concentration Concentration factor in the foam Dodecyl sulfate 1 9.2 2: 1 1.02 Dodecylamine 2nd 9.2 2: 1 2.24 uncured tallow amine acetate 3rd 8.5 2: 1 4.20 4th 8.5 1: 1 3.60 uncured tallow amine acetate 5 9.2 2: 1 3.20 6 9.2 1: 1 1.80 7 9.2 0.50: 1 1.80 8th 9.2 0.25: 1 1.20 uncured tallow amine acetate 9 10.5 2: 1 0.60 10th 10.5 1: 1 0.70
  • the anionic surfactant, dodecyl sulfate did not interact or not associate with the xanthate; accordingly, there is no increase at all in the relative concentration of the xanthate in the foam.
  • the cationic surfactants i.e., dodecylamine and primary amine acetate
  • pH values of 10.5 which are above the pKa values of the amine salts used in these experiments, the amine no longer occurs in a cationic form; Therefore, it is not expected to interact or associate with the xanthate anion.
  • Example 3 was repeated with diisobutyldithiophosphate (dialkyldithiophosphate) instead of xanthate in the amounts given in Table 9, with an ore sample from the underflow of a cyclone from a tertiary grinding circle, which was used instead of the finely ground ores used in the previous examples; the additives explained in Table 8 were also used.
  • diisobutyldithiophosphate dialkyldithiophosphate
  • Table 8 Summary of the display properties as well as the composition and amount of additives for flotation Ground ore : Grinding size like in the underflow of a cyclone of a tertiary grinding circuit Opacity 68% by weight solid density 1.82 Flotation aids : Collector: Dialkyldithiophosphate TROCOL S50 (see example 3) additional foamer: DOWFROTH 200 Pusher: ACROL J2P 350 pH modifier: Lime (ie CaO) pH value : 11 Flotation time : 2 min
  • Examples 8 and 9 show "flash flotation", which is used when a highly enriched, small concentrate mass is required.
  • flash flotation comprises a relatively short flotation time. Accordingly, the flotation times for Examples 8 and 9 were only 2 minutes. A longer flotation time would have resulted in a higher yield of gold and sulfur, but in a less enriched concentrate of greater mass.
  • Table 9 Additives for the milled ore of Examples 8 and 9 (g / t solids in the original slurry)
  • Example No. Dialkyl dithiophosphate TROCOL S50 DOWFROTH 200 ACROL® J2P 350 8th 10th 20th 30th - 9 10th 40 30th 10th Analysis results after flotations according to Examples 8 and 9.
  • the application of gold from the concentrate after pre-flotation is more favorable when using a collector with a primary amine and a dithiophosphate than the application of gold from a collector that contains a primary amine and a xanthate (see Examples 4 to 6) contains.
  • the sulfur output in the concentrate after pre-flotation according to Examples 8 and 9, in which dithiophosphate was used together with the acetate of a primary amine is significantly lower than in Examples 4 to 6, in which the xanthate together with the acetate one primary amine was used. Accordingly, collectors containing a mixture of a primary or secondary amine and a thiophosphate in the absence of copper sulfate are for such Flotation systems are more suitable, where the application of sulfur is of secondary importance.
  • Examples 10 and 11 below were carried out with fabrication waste that had been discarded as a gold mining waste a few years ago and in which residual cyanide had decomposed in air.
  • a certain amount of fabrication exits from previous gold mining processes were milled with water to form a slurry with a grinding size of 70% ⁇ 0.074 mm (200 mesh) and a slurry density of 38% by weight solids or a density of 1.32.
  • Sulfuric acid 48 was added to the slurry to adjust the pH to 4.0.
  • the resulting mixture was conditioned in a Pachuca tank 49 for six hours.
  • the slurry 52 gave a foam product with a first concentrate 54.1, which contained gold and other sulfidic minerals and was contaminated with a limited amount of the gangue minerals originally present in the ground ore.
  • the concentrate 54.1 was separated off in the usual way; the flotation was continued with a second flotation 50.2 with the remaining turbidity 52. 10 minutes later, another foam product, which contained a second concentrate 54.2, had accumulated on the surface of the slurry.
  • the exits 56 were preserved, which contained the majority of the aisle minerals originally present in the manufacturing exits.
  • the first and second flotation 50.1, 50.2 were carried out in the usual manner and are shown in the flow diagram according to FIG. 4.
  • Concentrate 54.2 like concentrate 54.1, contained gold and other sulfidic minerals contaminated with gangue minerals. The concentrate 54.2 was separated from the outlets 56.
  • Example 10 As described in Example 10, a first flotation 60.1 was carried out, but with flotation aids 62, which included a collector mixture according to the invention and which are explained in more detail in Table 13. A concentrate 64.1 was obtained.
  • Example 10 the second flotation was carried out for 10 minutes before the resulting second concentrate 64.2 and the exits 72 were collected.
  • Flotation aids Collector: Na mercaptobenzthiazole 80 g / t Foamer: DOWFROTH 200 4 g / t Pusher: ACROL® J2P 350 60 g / t Activator / foam modifier: Copper sulfate 30 g / t pH regulator: sulfuric acid pH : 4.0 Flotation time : 10 min Analysis results of the flotation products gold Total sulfur % By weight Content g / t % Spread Salary% S % Spread Concentrate 1.

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EP19880110551 1987-07-07 1988-07-01 Procédé et agents pour l'obtention par flottation de minéraux à partir de minerais sulfurés Withdrawn EP0298392A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA874930 1987-07-07
ZA874930 1987-07-07

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EP0298392A2 true EP0298392A2 (fr) 1989-01-11
EP0298392A3 EP0298392A3 (fr) 1991-01-09

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US (2) US4908125A (fr)
EP (1) EP0298392A3 (fr)
AU (1) AU603685B2 (fr)
BR (1) BR8803360A (fr)
CA (1) CA1316275C (fr)
FI (1) FI883236A (fr)
NO (1) NO883027L (fr)
YU (1) YU130688A (fr)

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WO2002038277A2 (fr) * 2000-11-07 2002-05-16 Clariant International Ltd Collecteur destine a la preparation de sulfures de metaux non-ferreux
WO2008157613A1 (fr) * 2007-06-18 2008-12-24 Nalco Company Mélange de méthylisobutylcarbinol et ses procédés d'utilisation
CN112718252A (zh) * 2020-12-15 2021-04-30 长沙矿山研究院有限责任公司 一种高钙镁高泥质混合铅锌矿浮选回收方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298392A3 (fr) * 1987-07-07 1991-01-09 Henkel Kommanditgesellschaft auf Aktien Procédé et agents pour l'obtention par flottation de minéraux à partir de minerais sulfurés
US5061459A (en) * 1989-10-27 1991-10-29 The British Petroleum Company P.L.C. Prevention of copper dissolution during cyanidation of gold ores
ZA918140B (en) * 1991-10-11 1992-07-29 American Cyanamid Co Recovery of platinum group metals and gold by synergistic reaction between allylalkylthionocarbamates and dithiophosphates
EP0558908B1 (fr) * 1992-03-04 1997-04-02 J.M. Voith GmbH Procédé et traitement de vieux papiers
US5507394A (en) * 1994-05-26 1996-04-16 The University Of British Columbia Aqueous composition useful in ore floatation containing aliphatic amine, extender oil, and emulsifier
US5510044A (en) * 1994-05-26 1996-04-23 The University Of British Columbia Composition for froth flotation of mineral ores comprising amine and frother
EA007352B1 (ru) * 2001-12-12 2006-10-27 Владимир Раич Флотореагент для селективной флотации и способ флотации
US7299930B2 (en) * 2003-11-27 2007-11-27 Procesos Mineros E Industries Conosur S.A. Collecting agent comprising ammoniated compounds (primary, secondary, tertiary amines), for use in the process of grinding and/or floating copper, molybdenum, zinc, and other contained mineral ores
US9302274B2 (en) * 2011-10-18 2016-04-05 Cytec Technology Corp. Collector compositions and methods of using the same
AP2014007573A0 (en) * 2011-10-18 2014-04-30 Cytec Tech Corp Froth flotation processes
WO2013059260A2 (fr) * 2011-10-18 2013-04-25 Cytec Technology Corp. Procédés de flottation par mousse
JP6009999B2 (ja) * 2013-06-27 2016-10-19 株式会社神戸製鋼所 低硫黄含有鉄鉱石の製造方法
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CN114682388B (zh) * 2022-03-29 2023-09-29 中国地质科学院矿产综合利用研究所 一种含砷浸染型金矿的浮选药剂、制备方法和使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1011166A (fr) * 1948-12-17 1952-06-19 Penarroya Miniere Metall Perfectionnements à la concentration des minerais par flottation
DE917361C (de) * 1952-12-28 1954-09-02 Kali Chemie Ag Verfahren zur Schaumschwimmaufbereitung von Sylvin enthaltenden Kalirohsalzen
US4036746A (en) * 1974-08-16 1977-07-19 Minerec Corporation Flotation with amine-stabilized dialkyl dithiophosphates
WO1987003221A1 (fr) * 1985-11-29 1987-06-04 The Dow Chemical Company Nouveaux collecteurs permettant la flottation par ecumage de mineraux

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2074699A (en) * 1934-06-02 1937-03-23 Du Pont Flotation process
US2267307A (en) * 1936-12-17 1941-12-23 Armour & Co Concentrating ores
US2185968A (en) * 1937-11-01 1940-01-02 Armour & Co Process of concentrating ores and flotation agents therefor
US2278020A (en) * 1939-11-03 1942-03-31 Armour & Co Process of separating chalcocite ore
US2289996A (en) * 1939-11-13 1942-07-14 Armour & Co Process of separating chalcopyrite ores
DE1156724B (de) * 1958-10-01 1963-11-07 Bayer Ag Flotationsverfahren fuer sulfidische Erze
US4208487A (en) * 1977-07-20 1980-06-17 American Cyanamid Company Novel frother composition for beneficiation of mineral ores
US4324654A (en) * 1978-10-12 1982-04-13 The Hanna Mining Company Recovery of copper from copper oxide minerals
US4797202A (en) * 1984-09-13 1989-01-10 The Dow Chemical Company Froth flotation method
US4684459A (en) * 1985-11-29 1987-08-04 The Dow Chemical Company Collector compositions for the froth flotation of mineral values
US4830739A (en) * 1985-02-20 1989-05-16 Berol Kemi Ab Process and composition for the froth flotation beneficiation of iron minerals from iron ores
DE3517154A1 (de) * 1985-05-11 1986-11-13 Henkel KGaA, 4000 Düsseldorf Verwendung von tensidgemischen als hilfsmittel fuer die flotation von nichtsulfidischen erzen
EP0298392A3 (fr) * 1987-07-07 1991-01-09 Henkel Kommanditgesellschaft auf Aktien Procédé et agents pour l'obtention par flottation de minéraux à partir de minerais sulfurés
US4877518A (en) * 1988-05-02 1989-10-31 Phillips Petroleum Company Ore flotation employing dimercaptothiadiazoles
US4883585A (en) * 1988-10-27 1989-11-28 Phillips Petroleum Company Ore flotation and sulfenyl dithiocarbamates as agents for use therein
GB2228430B (en) * 1988-12-01 1992-07-29 American Cyanamid Co Improved recovery of gold and/or silver by flotation
US4929344A (en) * 1989-05-01 1990-05-29 American Cyanamid Metals recovery by flotation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1011166A (fr) * 1948-12-17 1952-06-19 Penarroya Miniere Metall Perfectionnements à la concentration des minerais par flottation
DE917361C (de) * 1952-12-28 1954-09-02 Kali Chemie Ag Verfahren zur Schaumschwimmaufbereitung von Sylvin enthaltenden Kalirohsalzen
US4036746A (en) * 1974-08-16 1977-07-19 Minerec Corporation Flotation with amine-stabilized dialkyl dithiophosphates
WO1987003221A1 (fr) * 1985-11-29 1987-06-04 The Dow Chemical Company Nouveaux collecteurs permettant la flottation par ecumage de mineraux

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002038277A2 (fr) * 2000-11-07 2002-05-16 Clariant International Ltd Collecteur destine a la preparation de sulfures de metaux non-ferreux
DE10055126C1 (de) * 2000-11-07 2002-05-23 Clariant Internat Ltd Muttenz Sammler für die Aufbereitung von Nicht-Eisen-Metallsulfiden und seine Verwendung
WO2002038277A3 (fr) * 2000-11-07 2003-03-13 Clariant Int Ltd Collecteur destine a la preparation de sulfures de metaux non-ferreux
AU2002229524B2 (en) * 2000-11-07 2005-09-15 Clariant Finance (Bvi) Limited Collector for non iron metal sulphide preparation
US7051881B2 (en) 2000-11-07 2006-05-30 Clariant International Ltd. Collector for non iron metal sulphide preparation
WO2008157613A1 (fr) * 2007-06-18 2008-12-24 Nalco Company Mélange de méthylisobutylcarbinol et ses procédés d'utilisation
CN112718252A (zh) * 2020-12-15 2021-04-30 长沙矿山研究院有限责任公司 一种高钙镁高泥质混合铅锌矿浮选回收方法
CN112718252B (zh) * 2020-12-15 2022-06-03 长沙矿山研究院有限责任公司 一种高钙镁高泥质混合铅锌矿浮选回收方法

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AU1874088A (en) 1989-01-12
FI883236A0 (fi) 1988-07-06
CA1316275C (fr) 1993-04-13
BR8803360A (pt) 1989-01-31
YU130688A (en) 1990-02-28
US4908125A (en) 1990-03-13
AU603685B2 (en) 1990-11-22
NO883027L (no) 1989-01-09
NO883027D0 (no) 1988-07-06
EP0298392A3 (fr) 1991-01-09
FI883236A (fi) 1989-01-08
US5122289A (en) 1992-06-16

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