CN113102114A - Efficient collecting agent for high-sulfur-content fine-fraction gold ore flotation - Google Patents
Efficient collecting agent for high-sulfur-content fine-fraction gold ore flotation Download PDFInfo
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- CN113102114A CN113102114A CN202110190213.5A CN202110190213A CN113102114A CN 113102114 A CN113102114 A CN 113102114A CN 202110190213 A CN202110190213 A CN 202110190213A CN 113102114 A CN113102114 A CN 113102114A
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 239000010931 gold Substances 0.000 title claims abstract description 128
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 128
- 238000005188 flotation Methods 0.000 title claims abstract description 108
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 82
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 239000002253 acid Substances 0.000 claims abstract description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 25
- 239000011707 mineral Substances 0.000 claims abstract description 25
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 24
- -1 diisopropyl ammonium dithiophosphate Chemical compound 0.000 claims abstract description 19
- 239000011593 sulfur Substances 0.000 claims abstract description 17
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 17
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 16
- 239000010452 phosphate Substances 0.000 claims abstract description 16
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 claims abstract description 15
- IUNVCWLKOOCPIT-UHFFFAOYSA-N 6-methylheptylsulfanyl 2-hydroxyacetate Chemical compound CC(C)CCCCCSOC(=O)CO IUNVCWLKOOCPIT-UHFFFAOYSA-N 0.000 claims abstract description 15
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims abstract description 15
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 15
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- CMGLSTYFWSQNEC-UHFFFAOYSA-N o-ethyl n-ethylcarbamothioate Chemical compound CCNC(=S)OCC CMGLSTYFWSQNEC-UHFFFAOYSA-N 0.000 claims abstract description 8
- MAZIPTCFUXQONK-UHFFFAOYSA-N P(=S)([S-])([O-])[O-].C(CCC)[NH2+]CCCC.C(CCC)[NH2+]CCCC.C(CCC)[NH2+]CCCC Chemical compound P(=S)([S-])([O-])[O-].C(CCC)[NH2+]CCCC.C(CCC)[NH2+]CCCC.C(CCC)[NH2+]CCCC MAZIPTCFUXQONK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 38
- 238000002156 mixing Methods 0.000 claims description 34
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- 239000000243 solution Substances 0.000 claims description 15
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- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 13
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 13
- 239000004571 lime Substances 0.000 claims description 13
- 239000004088 foaming agent Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 6
- XPRULOZMJZDZEF-UHFFFAOYSA-N dibutoxy-sulfanyl-sulfanylidene-$l^{5}-phosphane Chemical compound CCCCOP(S)(=S)OCCCC XPRULOZMJZDZEF-UHFFFAOYSA-N 0.000 claims description 4
- BXYFLGJRMCIGLW-UHFFFAOYSA-N hydroxy-propan-2-yloxy-propan-2-ylsulfanyl-sulfanylidene-$l^{5}-phosphane Chemical compound CC(C)OP(O)(=S)SC(C)C BXYFLGJRMCIGLW-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 33
- 238000011084 recovery Methods 0.000 abstract description 13
- XEIPQVVAVOUIOP-UHFFFAOYSA-N [Au]=S Chemical compound [Au]=S XEIPQVVAVOUIOP-UHFFFAOYSA-N 0.000 abstract description 4
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- JGLMVXWAHNTPRF-CMDGGOBGSA-N CCN1N=C(C)C=C1C(=O)NC1=NC2=CC(=CC(OC)=C2N1C\C=C\CN1C(NC(=O)C2=CC(C)=NN2CC)=NC2=CC(=CC(OCCCN3CCOCC3)=C12)C(N)=O)C(N)=O Chemical compound CCN1N=C(C)C=C1C(=O)NC1=NC2=CC(=CC(OC)=C2N1C\C=C\CN1C(NC(=O)C2=CC(C)=NN2CC)=NC2=CC(=CC(OCCCN3CCOCC3)=C12)C(N)=O)C(N)=O JGLMVXWAHNTPRF-CMDGGOBGSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- JZRWCGZRTZMZEH-UHFFFAOYSA-N Thiamine Natural products CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- RFKHZOHSRQNNPW-UHFFFAOYSA-M sodium;pentoxymethanedithioate Chemical compound [Na+].CCCCCOC([S-])=S RFKHZOHSRQNNPW-UHFFFAOYSA-M 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003419 tautomerization reaction Methods 0.000 description 1
- KYMBYSLLVAOCFI-UHFFFAOYSA-N thiamine Chemical compound CC1=C(CCO)SCN1CC1=CN=C(C)N=C1N KYMBYSLLVAOCFI-UHFFFAOYSA-N 0.000 description 1
- 229960003495 thiamine Drugs 0.000 description 1
- 235000019157 thiamine Nutrition 0.000 description 1
- 239000011721 thiamine Substances 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
Images
Classifications
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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
- B03D1/014—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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a high-efficiency collector for high-sulfur-content fine-fraction gold ore flotation, which comprises the following components: 35-45 parts of a main collector, 20-35 parts of an auxiliary collector and 15-20 parts of water; the main collector comprises the following raw materials in parts by weight: 45-50 parts of dibutyl ammonium dithiophosphate or diisopropyl ammonium dithiophosphate, 20-28 parts of isooctyl thioglycolate, 8-12 parts of ethyl thiourethane, 5-9 parts of sodium oleate and 8-10 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: 30-35 parts of C7 hydroximic acid, 26-28 parts of polyacrylamide and 10-15 parts of isooctyl alcohol phosphate. The efficient collector has the characteristics of strong collecting capability, good selectivity, small using amount and foamability for gold minerals, and effectively solves the problems of low mineral separation recovery rate of fine-grain and micro-fine-grain gold, easy loss of fine-grain gold and low gold-sulfur separation recovery rate of gold with high sulfur content during separation.
Description
The invention is a divisional application of an invention patent with the application number of 'environment-friendly composite gold beneficiation collecting agent' and '2019103466788'.
Technical Field
The invention relates to a high-efficiency collecting agent for high-sulfur-content fine-fraction flotation of gold ores, belonging to the technical field of non-ferrous metal mining.
Background
Flotation is the most widely applied comprehensive recovery technology of minerals, can separate various minerals in principle, is a high-efficiency separation process, most of gold ore separation is recovered by a flotation method, and a collecting agent is usually added in the flotation process to improve the recovery rate of gold.
However, with the decreasing of the gold ore resources which are easy to concentrate, the gold ore which is difficult to concentrate becomes an important gold extraction resource. The occurrence state and the mineral structure composition of gold in the ore are the most fundamental reasons for the difficulty of processing the ore. Along with the continuous exploitation of mineral resources, the characteristics of low grade and difficult separation of available ores are increasingly obvious, and a collecting agent serving as the most key component in the flotation process is one of the hot spots of research. For gold-containing minerals, the commonly used collectors mainly include high-grade xanthates (sodium amyl xanthate, Y-89), ammonium-butyl-nigride, thionocarbamate, and the like.
However, the existing collecting agent has the problems of poor sorting effect, high reagent consumption, high beneficiation cost, poor sorting effect, poor stability and the like, and is difficult to disperse in ore pulp.
Moreover, for the micro-fine particle embedded gold ore in the refractory gold ore resource, the gold particle size embedded in the gangue is fine, and the gold fine particle and the sulphide ore are closely symbiotic, so that the gold fine particle is difficult to dissociate from the gangue, and the recovery of gold is difficult, especially for the gold ore with the sulfur content not less than 6%, the loss of fine particle gold is serious, the recovery rate of gold and sulfur is low, and the selectivity is worse.
Disclosure of Invention
The invention aims to solve the problems of low ore dressing recovery rate of fine and micro-fine gold and easy loss of fine gold and low gold-sulfur separation recovery rate of gold with high sulfur content during separation, and provides a high-efficiency collecting agent for high-sulfur-content fine-fraction flotation gold ore, which has the advantages of strong collecting capacity, good selectivity, small using amount and good foamability.
The technical scheme of the invention is as follows:
the environment-friendly composite gold beneficiation collecting agent comprises the following components in parts by weight: 35-45 parts of a main collector, 20-35 parts of an auxiliary collector and 15-20 parts of water; the main collector comprises the following raw materials in parts by weight: 45-50 parts of dialkyl dithiophosphate, 20-28 parts of isooctyl thioglycolate, 8-12 parts of thiourethane, 5-9 parts of sodium oleate and 8-10 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: 30-35 parts of alkyl hydroximic acid, 26-28 parts of polyacrylamide and 10-15 parts of isooctyl alcohol phosphate.
Preferably, the dihydrocarbyl dithiophosphate is one of dibutyl ammonium dithiophosphate or diisopropyl ammonium dithiophosphate.
Preferably, the thiamine is ethylthiourethane.
Preferably, the alkyl hydroximic acid is one of C7-C9 hydroximic acids.
Preferably, the preparation method of the environment-friendly composite gold beneficiation collecting agent comprises the following specific steps:
sequentially dissolving sodium oleate and dialkyl thiocarbonyl carbamate into a thiourethane solution, stirring and reacting for 5-5.5 hours at the temperature of 70-75 ℃ to obtain a mixed solution I, adding isooctyl thioglycolate into the mixed solution I at the pressure of 6-9Mpa, stirring and reacting for 2-5 hours at the temperature of 30-40 ℃, and adding dialkyl dithiophosphate into the system while stirring to obtain a main trapping agent;
mixing alkyl hydroximic acid and polyacrylamide, stirring for reaction for 1.5-2h, then preserving heat for 1.5h at 15-35 ℃, heating to 85-90 ℃ and preserving heat for 1.5h, adding isooctyl alcohol phosphate into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, uniformly mixing, and cooling to 45-55 ℃ to obtain a side collecting agent;
and thirdly, mixing the auxiliary collecting agent obtained in the second step with the main collecting agent obtained in the first step, adding purified water, and vibrating and mixing for 4-6 hours to obtain the environment-friendly composite gold beneficiation collecting agent.
Preferably, the environment-friendly composite gold beneficiation collecting agent is applied to gold ore flotation, and the pH value of ore pulp during flotation is 7.0-7.1; in the flotation process, ore is ground until mineral monomers are dissociated, lime 400-600g/t is added, then the environment-friendly composite gold ore dressing collector 90-110g/t is added, and finally the foaming agent 2# oil 10-25g/t is added to collect the gold ore dressing.
Preferably, the environment-friendly composite gold beneficiation collecting agent is applied to the high-sulfur-content fine-fraction flotation of gold ores.
Preferably, the environment-friendly composite gold beneficiation collecting agent is applied, and a 10% solution needs to be prepared when the environment-friendly composite gold beneficiation collecting agent is applied.
Preferably, the application of the environment-friendly composite gold dressing collector is that the gold ore with the ore grinding fineness of-400 meshes and the sulfur content of not less than 85% by mass is subjected to fine-fraction flotation.
Has the advantages that:
1. the efficient collecting agent for the high-sulfur-content fine-grained gold ore flotation overcomes the problem that a single substance is poor in gold selection and collecting capacity under the synergistic effect of all substances, has good collecting performance, good selectivity, small using amount and foamability, and effectively solves the problems that the ore dressing recovery rate of fine-grained and micro-grained gold is low, fine-grained gold is easy to lose during separation of gold with high sulfur content, and the gold-sulfur separation recovery rate is low.
2. The main collector and the auxiliary collector are matched with each other, so that the optimal adsorption density and strength required by the surface floating of the mineral can be obtained, and the physical adsorption and the chemical adsorption of the surface of the mineral can be realized simultaneously, the medicament group (═ O2PSS-) electronegativity Xg of the dialkyl dithiophosphate adopted by the invention is 3.0, the electronegativity difference with gold is 0.4, the bonded covalency is large, and the insoluble salt is easy to form; the medicinal group (-COO-) electronegativity Xg of isooctyl thioglycolate is 3.6, the electronegativity difference delta X with gold is 1.0, and the medicinal group shows large covalency when reacting with gold,therefore, the selective catalyst shows better selectivity, simultaneously, the thiourethane, the sodium oleate and the dialkyl thiocarbonyl carbamate are adopted in the main trapping agent, a non-ionic polar structure is provided, the water solubility is low, the value of the aprotic constant KH is larger, the complex valence-coordinate bond between the metal and the mineral is easily formed, and the affinity of the metal and the gold is improved; however, if the system contains more soft alkali type medicament, the formation of feedback bond is not favorable, and the activity of the medicament is reduced, so the invention adopts alkyl hydroximic acid, polyacrylamide and isooctyl alcohol phosphate ester which have tautomerism phenomenon
Promoting the group stability, reducing the additional consumption of the medicament, increasing the molecular size and improving the surface activity of the medicament.
3. When the collecting agent is prepared, sodium oleate and dialkyl thiocarbonyl carbamate are sequentially dissolved in a thiourethane solution, the mixture is stirred and reacted for 5-5.5 hours at the temperature of 70-75 ℃ to prepare a mixed solution I, isooctyl thioglycolate is added into the mixed solution I under the pressure of 6-9Mpa, the mixture is stirred and reacted for 2-5 hours at the temperature of 30-40 ℃, dialkyl dithiophosphate is added into the system while stirring to obtain the main collecting agent, the above operation process can fully fuse all raw materials, the adding sequence of all the raw materials must be added according to a set sequence to ensure that substances generated after two raw materials added firstly react with the next raw material to react, the arrangement of micelle molecules is effectively improved, the dispersibility of the raw materials in ore pulp can be improved, the coverage of the surface of minerals is increased, and the consumption of the collecting agent is reduced, the flotation selectivity can be improved, the flotation speed is increased, and the problem of layering of the prepared collecting agent is avoided.
4. When the side collecting agent is prepared, alkyl hydroximic acid and polyacrylamide are mixed, stirred and react for 1.5-2h, then the temperature is kept for 1.5h at 15-35 ℃, the temperature is raised to 85-90 ℃ and kept for 1.5h, isooctyl alcohol phosphate is added into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, the temperature is reduced to 45-55 ℃, and the reaction is carried out by further controlling the temperature on the premise that all raw materials are fully fused, so that the adsorption effect of the raw materials is exerted in the flotation process, the hydrophobicity of the surface of the mineral is improved, the separation of natural gold and metal sulfide ore is promoted, and fine gold particles embedded in gangue can be selected.
5. When the collector prepared by the invention is used for flotation, the pH value of ore pulp is 7.0-7.1; in the flotation process, grind ore to mineral monomer and add lime after dissociating, add again compound gold ore dressing collector of environmental protection adds foaming agent 2# oil at last, can strengthen the ability that the collector reduces surface tension, makes the combination medicament adsorb more firmly, can strengthen the electrostatic interaction of collector simultaneously to inseparabler absorption has improved collecting nature, selectivity on the ore surface.
Drawings
FIG. 1: a flow chart of a closed circuit test of the mixed flotation;
FIG. 2: flow diagram of the separation flotation stage test.
Detailed Description
In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments.
The collector is invented and created aiming at the gold-sulfur separation problem of high-sulfur gold ore, and the high-sulfur gold-containing gold ore adopted by the invention has the gold-containing grade of 4.5-6.0g/t, sulfur content of more than 16 percent, gold which is mainly embedded by fine grains (0.037-0.01mm) and fine grains (0.001-0.01mm) and does not contain coarse grains and medium-grain gold.
The steps in the flotation stage are as follows:
(I) Mixed flotation stage
The hybrid flotation scheme is shown in figure 1. The equipment used was an XFD model 3 liter, single tank flotation machine. The conditions of the mixed flotation are that the pH value of the ore pulp is 7.0-7.1 during the flotation; in the flotation process, ore is ground until mineral monomers are dissociated, lime 400-600g/t is added, then the environment-friendly composite gold ore dressing collector 90-110g/t is added, and finally the foaming agent 2# oil 10-25g/t is added to collect the gold ore dressing.
(II) separation flotation stage
The separation flotation scheme is shown in figure 2. The equipment used was an XFD model 3 liter, single tank flotation machine. Taking an experimental sample from the overflow of an FX-150 swirler, intercepting ore pulp by using a sampling spoon, and separating and floating under the conditions that the pH value of the ore pulp is 9-11 during floating; in the flotation process, lime 900-1100g/t is added, and then the environment-friendly composite gold beneficiation collecting agent 15-35g/t is added to collect the gold beneficiation.
During separation and flotation, gold ore with the ore grinding fineness of-200 meshes and the mass ratio of not less than 50 percent is ground.
The following table shows the results of the raw ore analysis in the examples.
Example 1:
the environment-friendly composite gold beneficiation collecting agent comprises the following components in parts by weight: 35 parts of a main collector, 34 parts of an auxiliary collector and 20 parts of water;
the main collector comprises the following raw materials in parts by weight: 45 parts of dibutyl dithiophosphate, 28 parts of isooctyl thioglycolate, 12 parts of ethyl thiourethane, 8 parts of sodium oleate and 9 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: c733 parts of hydroximic acid, 28 parts of polyacrylamide and 13 parts of isooctyl alcohol phosphate.
The preparation method of the collector in this example includes the following steps:
sequentially dissolving sodium oleate and dialkyl thiocarbonyl carbamate into a thiourethane solution, stirring and reacting for 5.2 hours at the temperature of 70 ℃ to obtain a mixed solution I, adding isooctyl thioglycolate into the mixed solution I under the pressure of 7Mpa, stirring and reacting for 2 hours at the temperature of 37 ℃, and adding dialkyl dithiophosphate into the system while stirring to obtain a main collector;
mixing alkyl hydroximic acid and polyacrylamide, stirring for reaction for 1.5h, then preserving heat for 1.5h at 20 ℃, heating to 86 ℃ and preserving heat for 1.5h, adding isooctyl alcohol phosphate into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, uniformly mixing, and cooling to 48 ℃ to obtain a secondary collecting agent;
and thirdly, mixing the auxiliary collecting agent obtained in the second step with the main collecting agent obtained in the first step, adding purified water, and vibrating and mixing for 5 hours to obtain the environment-friendly composite gold beneficiation collecting agent.
The environment-friendly composite gold beneficiation collecting agent is particularly suitable for gold ores with the grinding fineness of-400 meshes, the mass ratio of the gold ores is not less than 85%, and the sulfur content ratio of the gold ores is not less than 6%. When the collecting agent is used, the environment-friendly composite gold beneficiation collecting agent is prepared into a 10% solution.
A flotation stage:
(I) Mixed flotation stage
The hybrid flotation scheme is shown in figure 1. The equipment used was an XFD model 3 liter, single tank flotation machine. The conditions of the mixed flotation are that the pH value of the ore pulp is 7.0 during the flotation; in the flotation process, ore is ground until mineral monomers are dissociated, lime is added at 400g/t, then the environment-friendly composite gold ore dressing collector is added at 90g/t, and finally the foaming agent 2# oil is added at 10g/t to collect the gold ore dressing.
The flotation results of the examples after completion of flotation are shown in table 1.
(II) separation flotation stage
The separation flotation scheme is shown in figure 2. The equipment used was an XFD model 3 liter, single tank flotation machine. Taking an experimental sample from the overflow of an FX-150 swirler, intercepting ore pulp by using a sampling spoon, and separating and floating under the conditions that the pH value of the ore pulp is 9 during floating; in the flotation process, 1000g/t of lime is added, and 35g/t of the environment-friendly composite gold beneficiation collecting agent is added to collect gold beneficiation.
The flotation results of the examples after completion of the separation flotation are shown in table 2.
Example 2:
the environment-friendly composite gold beneficiation collecting agent comprises the following components in parts by weight: 40 parts of a main collector, 22 parts of an auxiliary collector and 15 parts of water;
the main collector comprises the following raw materials in parts by weight: 47 parts of diisopropyl dithiophosphate, 25 parts of isooctyl thioglycolate, 10 parts of ethyl thiourethane, 9 parts of sodium oleate and 8 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: 35 parts of C8 hydroximic acid, 27 parts of polyacrylamide and 11 parts of isooctyl alcohol phosphate.
The preparation method of the collector in this example includes the following steps:
sequentially dissolving sodium oleate and dialkyl thiocarbonyl carbamate into a thiourethane solution, stirring and reacting for 5 hours at the temperature of 71 ℃ to obtain a mixed solution I, adding isooctyl thioglycolate into the mixed solution I under the pressure of 8Mpa, stirring and reacting for 5 hours at the temperature of 35 ℃, and adding dialkyl dithiophosphate into the system while stirring to obtain a main collector;
mixing alkyl hydroximic acid and polyacrylamide, stirring for reaction for 1.8h, then preserving heat for 1.5h at 35 ℃, heating to 88 ℃ and preserving heat for 1.5h, adding isooctyl alcohol phosphate into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, uniformly mixing, and cooling to 45 ℃ to obtain a secondary collecting agent;
and thirdly, mixing the auxiliary collecting agent obtained in the second step with the main collecting agent obtained in the first step, adding purified water, and vibrating and mixing for 5 hours to obtain the environment-friendly composite gold beneficiation collecting agent.
The environment-friendly composite gold beneficiation collecting agent is particularly suitable for gold ores with the grinding fineness of-400 meshes, the mass ratio of the gold ores is not less than 85%, and the sulfur content ratio of the gold ores is not less than 6%. When the collecting agent is used, the environment-friendly composite gold beneficiation collecting agent is prepared into a 10% solution.
A flotation stage:
(I) Mixed flotation stage
The hybrid flotation scheme is shown in figure 1. The equipment used was an XFD model 3 liter, single tank flotation machine. The conditions of the mixed flotation are that the pH value of the ore pulp is 7.1 during the flotation; in the flotation process, ore is ground until mineral monomers are dissociated, lime is added at 600g/t, then the environment-friendly composite gold ore dressing collector is added at 100g/t, and finally the foaming agent 2# oil is added at 15g/t to collect the gold ore dressing.
The flotation results of the examples after completion of flotation are shown in table 1.
(II) separation flotation stage
The separation flotation scheme is shown in figure 2. The equipment used was an XFD model 3 liter, single tank flotation machine. Taking an experimental sample from the overflow of an FX-150 swirler, intercepting ore pulp by using a sampling spoon, and separating and floating under the conditions that the pH value of the ore pulp is 10 during floating; in the flotation process, 1000g/t of lime is added, and 15g/t of the environment-friendly composite gold beneficiation collecting agent is added to collect gold beneficiation.
The flotation results of the examples after completion of the separation flotation are shown in table 2.
Example 3:
the environment-friendly composite gold beneficiation collecting agent comprises the following components in parts by weight: 42 parts of a main collecting agent, 30 parts of an auxiliary collecting agent and 17 parts of water;
the main collector comprises the following raw materials in parts by weight: 50 parts of dibutyl dithiophosphate, 20 parts of isooctyl thioglycolate, 9 parts of ethyl thiourethane, 7 parts of sodium oleate and 9 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: 31 parts of C9 hydroximic acid, 27 parts of polyacrylamide and 15 parts of isooctyl alcohol phosphate.
The preparation method of the collector in this example includes the following steps:
sequentially dissolving sodium oleate and dialkyl thiocarbonyl carbamate into a thiourethane solution, stirring and reacting for 5.5 hours at the temperature of 75 ℃ to obtain a mixed solution I, adding isooctyl thioglycolate into the mixed solution I under the pressure of 9Mpa, stirring and reacting for 4 hours at the temperature of 30 ℃, and adding dialkyl dithiophosphate into the system while stirring to obtain a main collector;
mixing alkyl hydroximic acid and polyacrylamide, stirring for reaction for 1.5h, then preserving heat for 1.5h at 30 ℃, heating to 90 ℃ and preserving heat for 1.5h, adding isooctyl alcohol phosphate into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, uniformly mixing, and cooling to 55 ℃ to obtain a secondary collecting agent;
and thirdly, mixing the auxiliary collecting agent obtained in the second step with the main collecting agent obtained in the first step, adding purified water, and vibrating and mixing for 4 hours to obtain the environment-friendly composite gold beneficiation collecting agent.
The environment-friendly composite gold beneficiation collecting agent is particularly suitable for gold ores with the grinding fineness of-400 meshes, the mass ratio of the gold ores is not less than 85%, and the sulfur content ratio of the gold ores is not less than 6%. When the collecting agent is used, the environment-friendly composite gold beneficiation collecting agent is prepared into a 10% solution.
A flotation stage:
(I) Mixed flotation stage
The hybrid flotation scheme is shown in figure 1. The equipment used was an XFD model 3 liter, single tank flotation machine. The conditions of the mixed flotation are that the pH value of the ore pulp is 7.0 during the flotation; in the flotation process, ore is ground until mineral monomers are dissociated, lime is added at 500g/t, then the environment-friendly composite gold ore dressing collector is added at 105g/t, and finally the foaming agent 2# oil is added at 20g/t to collect the gold ore dressing.
The flotation results of the examples after completion of flotation are shown in table 1.
(II) separation flotation stage
The separation flotation scheme is shown in figure 2. The equipment used was an XFD model 3 liter, single tank flotation machine. Taking an experimental sample from the overflow of an FX-150 swirler, intercepting ore pulp by using a sampling spoon, and separating and floating under the conditions that the pH value of the ore pulp is 9 during floating; in the flotation process, adding 950g/t of lime, and adding 20g/t of the environment-friendly composite gold beneficiation collecting agent to collect gold beneficiation.
The flotation results of the examples after completion of the separation flotation are shown in table 2.
Example 4:
the environment-friendly composite gold beneficiation collecting agent comprises the following components in parts by weight: 45 parts of a main collector, 27 parts of an auxiliary collector and 19 parts of water;
the main collector comprises the following raw materials in parts by weight: 48 parts of dibutyl dithiophosphate, 22 parts of isooctyl thioglycolate, 8 parts of ethyl thiourethane, 5 parts of sodium oleate and 10 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: 30 parts of C7 hydroximic acid, 26 parts of polyacrylamide and 10 parts of isooctyl alcohol phosphate.
The preparation method of the collector in this example includes the following steps:
sequentially dissolving sodium oleate and dialkyl thiocarbonyl carbamate into a thiourethane solution, stirring and reacting for 5.1 hours at 73 ℃ to obtain a mixed solution I, adding isooctyl thioglycolate into the mixed solution I under 6Mpa, stirring and reacting for 3 hours at 40 ℃, and adding dialkyl dithiophosphate into the system while stirring to obtain a main collector;
mixing alkyl hydroximic acid and polyacrylamide, stirring for reaction for 2 hours, then preserving heat for 1.5 hours at 15 ℃, heating to 85 ℃, preserving heat for 1.5 hours, adding isooctyl alcohol phosphate into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, uniformly mixing, and cooling to 50 ℃ to obtain a side collecting agent;
and thirdly, mixing the auxiliary collecting agent obtained in the second step with the main collecting agent obtained in the first step, adding purified water, and vibrating and mixing for 6 hours to obtain the environment-friendly composite gold beneficiation collecting agent.
The environment-friendly composite gold beneficiation collecting agent is particularly suitable for gold ores with the grinding fineness of-400 meshes, the mass ratio of the gold ores is not less than 85%, and the sulfur content ratio of the gold ores is not less than 6%. When the collecting agent is used, the environment-friendly composite gold beneficiation collecting agent is prepared into a 10% solution.
A flotation stage:
(I) Mixed flotation stage
The hybrid flotation scheme is shown in figure 1. The equipment used was an XFD model 3 liter, single tank flotation machine. The conditions of the mixed flotation are that the pH value of the ore pulp is 7.1 during the flotation; in the flotation process, ore is ground until mineral monomers are dissociated, lime is added at 400g/t, then the environment-friendly composite gold ore dressing collector is added at 110g/t, and finally foaming agent 2# oil is added at 25g/t to collect the gold ore dressing.
(II) separation flotation stage
The separation flotation scheme is shown in figure 2. The equipment used was an XFD model 3 liter, single tank flotation machine. Taking an experimental sample from the overflow of an FX-150 swirler, intercepting ore pulp by using a sampling spoon, and separating and floating under the conditions that the pH value of the ore pulp is 11 during floating; in the flotation process, 1100g/t of lime is added, and 25g/t of the environment-friendly composite gold beneficiation collecting agent is added to collect gold beneficiation.
The flotation results of the examples after completion of the separation flotation are shown in table 2.
The experimental results are as follows:
comparative example 1 is a flotation result of separation flotation using a commercially available MP-1 collector, and other preparation conditions of comparative example 2 are the same as those of example 1, except that the collector of comparative example 2 is prepared by directly and uniformly mixing all raw materials.
Table 1: flotation results after completion of bulk flotation
As can be seen from the table above, the collector prepared by the method has good selectivity and collecting performance. From the data of examples 1-4 and comparative example 1, the grades of the bulk concentrates in examples 1-4 are all higher than that in comparative example 1, which shows that the collector prepared by the invention has good selectivity; the recovery rate is higher than that of the comparative example 1, which shows that the collector prepared by the invention has good collecting performance; from the data of the examples 1 to 4 and the comparative example 2, the selectivity and the collecting property of the collecting agent prepared by uniformly mixing all the raw materials are poor, which shows that the raw materials of the collecting agent prepared by the preparation method are fully fused, the arrangement of micelle molecules is effectively improved, the dispersibility of the raw materials in ore pulp can be improved, the coverage surface of the mineral is increased, the consumption of the collecting agent is reduced, the flotation selectivity can be improved, and the flotation speed is improved; when the side collecting agent is prepared, alkyl hydroximic acid and polyacrylamide are mixed, stirred and react for 1.5-2h, then the temperature is kept for 1.5h at 15-35 ℃, the temperature is raised to 85-90 ℃ and kept for 1.5h, isooctyl alcohol phosphate is added into a system formed by mixing the alkyl hydroximic acid and the polyacrylamide, the temperature is reduced to 45-55 ℃, and the reaction is carried out by further controlling the temperature on the premise that all raw materials are fully fused, so that the adsorption effect of the raw materials is exerted in the flotation process, the hydrophobicity of the surface of the mineral is improved, the separation of natural gold and metal sulfide ore is promoted, and fine gold particles embedded in gangue can be selected, and therefore the collecting agent has good collecting property and selectivity.
Table 2: flotation results of examples after completion of separation flotation
As can be seen from the above table, the collector prepared by the invention has good selectivity for gold when separation flotation is performed, the grade and recovery rate of the collector prepared in examples 1-4 are higher than those of gold concentrate in comparative example 1, the collector obtained by the invention has good selectivity and collection performance, the recovery rate of gold can be ensured when gold is formed in fine particles and micro-fine particles and gold ore with high sulfur content is separated, gold and sulfur separation is promoted, and the collector has strong collecting capability, good selectivity and small using amount.
The invention utilizes the same effect of functional groups with different properties on gold ore minerals, and improves the comprehensive performance of the gold ore minerals through mutual supplement and reinforcement. According to the effect of five medicament groups on gold ore minerals in production practice, the medicaments are effectively combined together, the chelating and collecting effect on the gold ore is enhanced, the combined collecting function is coordinated and enhanced, the selectivity is improved, and a better flotation effect can be obtained.
In the production practice of the mupingjin ore, the yield of gold is increased by 22646 g every year under the conditions that the ore dressing treatment capacity, the reagent cost and the raw ore grade are similar, the economic benefit is increased by 205 ten thousand yuan, and good economic benefit and social benefit are obtained.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (3)
1. The efficient collecting agent for the high-sulfur-content fine-fraction gold ore flotation is characterized by comprising the following components in parts by weight: 35-45 parts of a main collector, 20-35 parts of an auxiliary collector and 15-20 parts of water; the main collector comprises the following raw materials in parts by weight: 45-50 parts of dibutyl ammonium dithiophosphate or diisopropyl ammonium dithiophosphate, 20-28 parts of isooctyl thioglycolate, 8-12 parts of ethyl thiourethane, 5-9 parts of sodium oleate and 8-10 parts of dialkyl thiocarbonyl carbamate; the auxiliary collecting agent is composed of the following raw materials in parts by weight: 30-35 parts of C7 hydroximic acid, 26-28 parts of polyacrylamide and 10-15 parts of isooctyl alcohol phosphate.
2. The preparation method of the high-efficiency collector for the flotation of gold ores with high-sulfur content and fine fraction according to claim 1, is characterized by comprising the following specific steps:
sequentially dissolving sodium oleate and dialkyl thiocarbonyl carbamate into an ethyl thiourethane solution, stirring and reacting for 5-5.5 hours at the temperature of 70-75 ℃ to obtain a mixed solution I, adding isooctyl thioglycolate into the mixed solution I at the pressure of 6-9Mpa, stirring and reacting for 2-5 hours at the temperature of 30-40 ℃, and adding dibutyl dithiophosphate or diisopropyl dithiophosphate into the system while stirring to obtain a primary trapping agent;
mixing C7 hydroximic acid and polyacrylamide, stirring to react for 1.5-2h, then preserving heat for 1.5h at 15-35 ℃, heating to 85-90 ℃ and preserving heat for 1.5h, adding isooctyl alcohol phosphate into a system formed by mixing alkyl hydroximic acid and polyacrylamide, uniformly mixing, and cooling to 45-55 ℃ to obtain a side collecting agent;
mixing the auxiliary collecting agent obtained in the second step with the main collecting agent obtained in the first step, adding purified water, and vibrating and mixing for 4-6 hours to obtain the environment-friendly composite gold beneficiation collecting agent;
wherein the pH value of ore pulp in the mixed flotation is 7.0-7.1; in the flotation process, ore is ground until mineral monomers are dissociated, lime 400-600g/t is added, then the environment-friendly composite gold ore dressing collector 90-110g/t is added, and finally the foaming agent 2# oil 10-25g/t is added to collect the gold ore dressing.
3. The high-efficiency collector for the flotation of gold ores with high sulfur content and fine fraction prepared by the method of claim 2 is prepared into a 10% solution when being applied.
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| CN111359774B (en) * | 2020-03-17 | 2022-05-31 | 矿冶科技集团有限公司 | Method for recovering rare earth minerals from submarine sediments |
| CN112439551B (en) * | 2020-11-02 | 2022-07-12 | 西部(重庆)地质科技创新研究院有限公司 | Synthesis process of rare earth collecting agent |
| CN113145315A (en) * | 2021-03-27 | 2021-07-23 | 河南天鸿选矿科技有限公司 | Scheelite flotation collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698878A (en) * | 2012-05-30 | 2012-10-03 | 西北矿冶研究院 | Pyrite inhibitor used under low-alkalinity condition |
| CN103203288A (en) * | 2013-04-11 | 2013-07-17 | 北京矿冶研究总院 | Method for flotation of lead sulfide ore |
| CN103433147A (en) * | 2013-08-16 | 2013-12-11 | 兰州大学 | Flotation reagent for copper-nickel sulfide ores |
| CN104826742A (en) * | 2015-05-19 | 2015-08-12 | 烟台恒邦化工助剂有限公司 | Composite collecting agent for sulphide ore and preparing method thereof |
| CN106955790A (en) * | 2017-04-10 | 2017-07-18 | 中南大学 | A kind of N alkyl hydroximic acid O alkyl thiourethanes collecting agent, preparation and its application |
| CN108057525A (en) * | 2017-11-27 | 2018-05-22 | 西北矿冶研究院 | Flotation collector for improving associated gold of low-grade copper ore and copper-molybdenum ore and preparation method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249212A (en) * | 1998-09-29 | 2000-04-05 | 株洲选矿药剂厂 | Compound chemical for floatation |
| CN101333602A (en) * | 2008-07-29 | 2008-12-31 | 紫金矿业集团股份有限公司 | Beneficiating process for increasing recovery rate of aurum in tailings of aurum |
| EA034500B1 (en) * | 2011-10-18 | 2020-02-13 | Сайтек Текнолоджи Корп. | Collector compositions and methods of using the same |
| CN102631993A (en) * | 2012-03-20 | 2012-08-15 | 北京矿冶研究总院 | Method for flotation of copper sulphide ore |
| CN103657864B (en) * | 2013-12-03 | 2016-01-13 | 安徽朝山新材料股份有限公司 | A kind of refractory gold ore collecting agent and preparation method thereof |
| CN104841565A (en) * | 2015-05-26 | 2015-08-19 | 长安大学 | Method for recycling gold from gold floatation tailings |
| CN105418673B (en) * | 2015-11-25 | 2017-07-07 | 昆明冶金研究院 | A kind of preparation method of zinc oxide high-efficient collecting agent |
| CN105801458B (en) * | 2016-03-21 | 2017-07-21 | 中南大学 | A kind of ether double thiourethane derivatives or ether Dithioureas and its preparation method and application |
-
2019
- 2019-04-27 CN CN201910346678.8A patent/CN110064524B/en active Active
- 2019-04-27 CN CN202110190213.5A patent/CN113102114B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698878A (en) * | 2012-05-30 | 2012-10-03 | 西北矿冶研究院 | Pyrite inhibitor used under low-alkalinity condition |
| CN103203288A (en) * | 2013-04-11 | 2013-07-17 | 北京矿冶研究总院 | Method for flotation of lead sulfide ore |
| CN103433147A (en) * | 2013-08-16 | 2013-12-11 | 兰州大学 | Flotation reagent for copper-nickel sulfide ores |
| CN104826742A (en) * | 2015-05-19 | 2015-08-12 | 烟台恒邦化工助剂有限公司 | Composite collecting agent for sulphide ore and preparing method thereof |
| CN106955790A (en) * | 2017-04-10 | 2017-07-18 | 中南大学 | A kind of N alkyl hydroximic acid O alkyl thiourethanes collecting agent, preparation and its application |
| CN108057525A (en) * | 2017-11-27 | 2018-05-22 | 西北矿冶研究院 | Flotation collector for improving associated gold of low-grade copper ore and copper-molybdenum ore and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113333153A (en) * | 2021-07-15 | 2021-09-03 | 紫金矿业集团股份有限公司 | Beneficiation method for fine-grained embedded copper ore in plateau area |
| CN113333153B (en) * | 2021-07-15 | 2023-04-25 | 紫金矿业集团股份有限公司 | Ore dressing method for fine-grained chalcopyrite in plateau area |
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