CN111482278A - Copper oxide ore flotation method - Google Patents
Copper oxide ore flotation method Download PDFInfo
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- CN111482278A CN111482278A CN202010502534.XA CN202010502534A CN111482278A CN 111482278 A CN111482278 A CN 111482278A CN 202010502534 A CN202010502534 A CN 202010502534A CN 111482278 A CN111482278 A CN 111482278A
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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
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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
- B03D1/002—Inorganic compounds
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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
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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
- B03D1/02—Froth-flotation processes
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Abstract
The invention relates to the technical field of mineral separation, and particularly discloses a flotation method of copper oxide ore, which comprises the steps of mixing raw copper oxide ore with an inhibitor, grinding the mixture to obtain floatable ore pulp, adding an activating agent and a collecting agent into the floatable ore pulp, carrying out flotation, carrying out rough concentration for 2 times, scavenging for 2 times, carrying out fine concentration for 4 times, returning the ore in each operation to the previous operation in sequence, and finally carrying out flotation to obtain a copper oxide ore concentrate product, wherein the collecting agent is α -mixed collecting agent of hydroxyarylphosphinic acid and alkyl xanthate.
Description
Technical Field
The invention relates to the technical field of mineral processing, in particular to the technical field of mineral separation, and particularly discloses a flotation method of copper oxide ore.
Background
Copper oxide ore is an important component of the world's copper resources and is abundant in reserves. Most of the copper sulfide ore deposits have oxidation zones which are widely distributed, and some of the copper sulfide ore deposits are changed into large and medium-sized sulfide oxidation ore deposits due to long-time oxidation. The treatment of copper oxide ores is becoming increasingly important as copper sulphide ores are being exploited progressively. Therefore, the development and treatment of the copper sulphide oxide ore have great significance for the development of the copper metallurgy industry.
The copper oxide ore has complex composition, loose and fragile structure, strong hydration property and contains a large amount of slime. The slime therein will not selectively adsorb collectors and will cover mineral active particles, so that flotation of copper oxide is much more difficult than that of sulphide ores. Copper oxide ore sorting is therefore considered by the chosen mine as one of the problems to be solved urgently.
There has been some degree of research on the treatment of copper oxide ores, for example, patent application No. 92101545.3 entitled "a hydrometallurgical process for the recovery of copper from copper oxide" discloses a hydrometallurgical process for the recovery of copper from copper oxide ores; hydrometallurgical methods for acid leaching recovery of copper from low grade copper oxide ores are disclosed in the patent application No. 201110236034.7 entitled "method for leaching copper from copper oxide"; also, a patent with application number 201310100642.1 entitled "beneficiation process combining copper oxide ore and associated valuable metals" discloses a process for treating copper oxide ore in combination with a separation-flotation combined flow of copper oxide. However, these processes still have some disadvantages: for complex refractory copper oxide ores, the product index is not ideal; the wet leaching is used for treating the copper oxide ore, so that the consumption of a leaching agent is large, the treatment time is long, the leaching cost is high, and the effect is not obvious on ores with high mud content; the separation-flotation combined flow treatment process has long working procedures and complex operation.
Therefore, it is necessary to develop a direct flotation method for copper oxide ore resources to improve the grade of copper concentrate products, simplify the process of copper oxide ore treatment, and facilitate industrial application.
Disclosure of Invention
The invention mainly solves the technical problem of providing a copper oxide ore flotation method to simplify the processing flow of the copper oxide ore and improve the grade and the recovery rate of the obtained copper oxide concentrate product.
In order to solve the technical problems, the invention adopts the technical scheme that: a copper oxide ore flotation method comprises the following steps:
mixing copper oxide ore raw ore with an inhibitor, and grinding until the monomer dissociation degree is more than 90% to obtain floatable ore pulp; and the number of the first and second groups,
adding an activating agent and a collecting agent into the floatable ore pulp, then carrying out flotation, carrying out rough concentration for 2 times, scavenging for 2 times, carrying out fine concentration for 4 times, returning the middlings in each operation to the previous operation in sequence, and finally carrying out flotation to obtain a copper oxide concentrate product, wherein the collecting agent is a mixed collecting agent of α -hydroxyarylphosphinic acid and alkyl xanthate.
In a preferred embodiment, the inhibitor is water glass, and the amount of the water glass is 10-600 g added per ton of the copper oxide ore raw ore.
As a preferred embodiment, the activator is sodium sulfide and/or ammonium sulfide.
As a preferred embodiment, the collector is a mixed collector of α -hydroxyarylphosphinic acid and an alkylxanthene, wherein the α -hydroxyarylphosphinic acid is a compound of formula (I):
in the general formula (I), R1Is optionally selected from hydrogen atom or C1-C2Alkyl groups of (a);
the alkyl xanthate is a compound shown in a general formula (II):
in the general formula (II), R2Is C2-C6Alkyl group of (1).
Wherein compound α -hydroxyarylphosphinic acid and alkylxanthene can exist partially or completely in their isomeric forms.
In a preferred embodiment, the collector is a mixed collector of α -hydroxyarylphosphinic acid and alkyl xanthate, and the mass ratio of α -hydroxyarylphosphinic acid to alkyl xanthate in the mixed collector is (1-2): 1.
As a preferred embodiment, the α -hydroxyarylphosphinic acid is α -hydroxyphenylphosphonous acid, α -hydroxy-2-methyl-3-phenylpropenylphosphonous acid or α -hydroxy-2-ethyl-3-phenylpropenylphosphonous acid.
Wherein the α -hydroxyphenylphosphonous acid has the structural formula:
α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid has the structural formula:
α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid has the structural formula:
as a preferred embodiment, the alkyl xanthate is hexyl xanthate, butyl xanthate or ethyl xanthate.
As a more preferred embodiment, the collector is a mixed collector of α -hydroxyphenylphosphonous acid and hexylxanthate, or a mixed collector of α -hydroxy-2-methyl-3-phenylpropenylphosphonous acid and butylxanthate, or a mixed collector of α -hydroxy-2-ethyl-3-phenylpropenylphosphonous acid and ethylxanthate.
As a preferred embodiment, the activator is ammonium sulfide.
As a more preferred embodiment, the flotation of the floatable pulp employs a process of 2 rougher picks, 2 sweep and 4 cleaner picks, comprising the steps of:
s1: adding an activating agent ammonium sulfide and a mixed collecting agent into the floatable ore pulp for primary roughing, wherein the addition amount of the activating agent is 350-450 g of the activating agent added to each ton of copper oxide ore raw ore, and the addition amount of the mixed collecting agent is 400-600 g of the mixed collecting agent added to each ton of copper oxide ore raw ore;
after the first roughing, performing second roughing, wherein the addition amount of an activating agent is 250-350 g per ton of the copper oxide ore raw ore, and the addition amount of a mixed collecting agent is 300-400 g per ton of the copper oxide ore raw ore;
s2: carrying out first scavenging after the second roughing, wherein the addition amount of the activating agent is 50-150 g of the activating agent added in each ton of the copper oxide ore raw ore, and the addition amount of the mixed collecting agent is 75-200 g of the mixed collecting agent added in each ton of the copper oxide ore raw ore;
carrying out second scavenging after the first scavenging, wherein the addition amount of the activating agent is 0-50 g of the activating agent added in each ton of the copper oxide ore raw ore, and the addition amount of the mixed collecting agent is 30-100 g of the activating agent added in each ton of the copper oxide ore raw ore;
s3: carrying out first concentration after the second scavenging, wherein the addition amount of the mixed collecting agent is 40-100 g of the mixed collecting agent added to each ton of the copper oxide ore raw ore;
carrying out secondary concentration after the primary concentration, wherein the addition amount of the mixed collecting agent is 30-50 g of the mixed collecting agent added to each ton of the copper oxide ore raw ore;
carrying out third concentration after the second concentration, wherein the addition amount of the mixed collecting agent is 0-20 g of the mixed collecting agent added to each ton of the copper oxide ore raw ore;
carrying out fourth concentration after the third concentration, wherein no medicament is added in the fourth concentration;
and returning the middling sequence of each step of operation to the previous operation to finally obtain the copper oxide concentrate product.
The invention provides a copper oxide ore flotation method, which is short in processing flow, and comprises the steps of firstly mixing raw copper oxide ore with an inhibitor to disperse ore pulp, avoiding covering useful minerals with fine mud generated in an ore grinding process of the copper oxide ore, then grinding the copper oxide ore until the monomer dissociation degree is more than 90%, and dissociating the copper oxide ore monomer to obtain floatable ore pulp; and then adding an activating agent and a collecting agent into the floatable ore pulp, then carrying out flotation, carrying out rough concentration and scavenging for 2 times, and carrying out fine concentration for 4 times, thus obtaining a copper oxide concentrate product by flotation. The copper oxide concentrate product obtained by the method has high grade and high copper recovery rate.
α -hydroxyaryl phosphonous acid in the collecting agent has a conjugated structure and a phosphonous acid chelating group, and is easy to self-assemble with other collecting agents through non-covalent bond action, so that the hydrophobic treatment of the collecting agent on the surface of a mineral is enhanced, meanwhile, the chelating group reacts with Cu (II) metal ions on the surface of a copper mineral to generate difficultly soluble and stable Cu (I) species, and plays a role in inducing and activating the Cu (II) around the species, so that the species is easier to adsorb by an activating agent or other collecting agents.
The alkyl xanthate matched with α -hydroxyarylphosphinic acid is a sulfide mineral collector and is generally difficult to be directly and stably adsorbed on the surface of copper oxide, but the alkyl xanthate can be promoted to be bonded with active sites or induced activated sites on the surface of copper ore by being compounded with α -hydroxyarylphosphinic acid, so that the hydrophobicity of the surface of the mineral is changed, and the alkyl xanthate is self-assembled and dispersed on a foam liquid film by the collector when matched with α -hydroxyalkylphosphinic acid for use, so that the stability and viscosity of foam generated by a phosphonic acid medicament are effectively improved, the entrainment phenomenon caused by over-adhesion of the foam in the flotation process is further reduced, and the grade of the copper oxide concentrate obtained by flotation is obviously improved.
According to the invention, through scientific and reasonable selection of the agents, coordination among the agents and optimization design of the flotation process, namely the flotation process of 2 times of roughing and 2 times of scavenging and 4 times of fine selection, the copper oxide concentrate product obtained by flotation is high in grade, and the copper recovery rate is effectively improved.
Drawings
FIG. 1 is a flow chart of a flotation process of copper oxide ore provided by the invention.
Detailed Description
The technical solution of the present invention will be described in detail by specific examples.
In the following examples, the agents used are all commercially available. The medicament can be added directly or made into a solution. The dosage g/t of the medicament represents the amount of the medicament added per ton of raw ore, for example, 500g/t of water glass is added, and 500g of the water glass is added per ton of raw ore. All parts and percentages in the examples are by mass unless otherwise specified.
Example 1
The process flow shown in fig. 1 is adopted to carry out flotation treatment on certain copper oxide ore taken from Yunnan, which is specifically as follows.
The copper oxide ore sample is taken from a certain copper oxide ore in Yunnan, the copper content of a raw ore is 1.5%, the copper exists in free copper oxide and combined copper oxide, and the combined copper oxide accounts for 8.6%. Ball milling the mineral by a ball mill and adding 500g/t of water glass in advance to obtain floatable ore pulp with the monomer dissociation degree of more than 90%;
the floatable ore pulp is subjected to rough concentration for 2 times, scavenging for 2 times and fine concentration for 4 times:
roughly selecting one, adding 400g/t of ammonium sulfide, 300g/t of α -hydroxyphenylphosphonous acid and 150g/t of hexyl xanthate,
adding 300g/t of ammonium sulfide, 200g/t of α -hydroxyphenylphosphonous acid and 100g/t of hexylxanthate into the crude second;
scavenging one, adding 100g/t of ammonium sulfide, 50g/t of α -hydroxyphenylphosphonous acid and 25g/t of hexylxanthate,
adding 50g/t of ammonium sulfide, 20g/t of α -hydroxyphenylphosphonous acid and 10g/t of hexylxanthate into the second scavenging, and mixing the products and carefully selecting for 4 times;
firstly, α -hydroxyphenylphosphonous acid 30g/t and hexylxanthate 15g/t are added,
selecting II, adding α -hydroxyphenylphosphonous acid 20g/t and hexylxanthate 10g/t,
selecting three, adding α -hydroxyphenylphosphonous acid 10g/t and hexylxanthate 5g/t,
selecting the medicines;
and returning the middling sequence of each operation to the previous operation to finally obtain a copper oxide concentrate product.
The grade of the obtained copper oxide concentrate product is 15.96%, and the recovery rate of copper reaches 72.14%.
Example 2
The process flow shown in fig. 1 is adopted to carry out flotation treatment on copper oxide ore taken from Xinjiang as follows.
The copper oxide ore sample is taken from copper oxide ore in Xinjiang, the copper content of raw ore is 2.11%, the copper exists in free copper oxide and combined copper oxide, wherein the combined copper oxide accounts for 5.8%. Ball milling the mineral by a ball mill and adding 750g/t of water glass in advance to obtain floatable ore pulp with the monomer dissociation degree of more than 90%;
the floatable ore pulp is subjected to rough concentration for 2 times, scavenging for 2 times and fine concentration for 4 times:
400g/t of ammonium sulfide, 250g/t of α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid and 250g/t of butyl xanthate are added to the crude product,
adding 300g/t of ammonium sulfide, 200g/t of α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid and 200g/t of butyl xanthate into the second crude selection;
scavenging one, adding 100g/t of ammonium sulfide, 100g/t of α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid and 100g/t of butyl xanthate,
adding 50g/t of ammonium sulfide, 50g/t of α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid and 50g/t of butyl xanthate into the second scavenging, and mixing the products and selecting for 4 times;
firstly, α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid 30g/t and butyl xanthate 30g/t are added,
selecting II, adding α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid 20g/t and butyl xanthate 20g/t,
selecting three, adding α -hydroxy-2-methyl-3-phenylpropenyl phosphonous acid 10g/t and butyl xanthate 10g/t,
selecting the medicines;
and returning the middling sequence of each operation to the previous operation to finally obtain a copper oxide concentrate product.
The grade of the copper oxide concentrate product is 18.65%, and the recovery rate of copper reaches 79.20%.
Example 3
The process flow shown in fig. 1 is adopted to perform flotation treatment on copper oxide ores taken from the north of lake.
The cupric oxide ore sample is taken from certain cupric oxide ore in Hubei, the raw ore contains 0.65 percent of copper, and the copper exists in free cupric oxide and combined cupric oxide, wherein the combined cupric oxide accounts for 10.8 percent. Ball milling the mineral by a ball mill and adding 1000g/t of water glass in advance to obtain floatable ore pulp with the monomer dissociation degree of more than 90%;
the floatable ore pulp is subjected to rough concentration for 2 times, scavenging for 2 times and fine concentration for 4 times:
400g/t of ammonium sulfide, 300g/t of ethyl xanthate and 300g/t of α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid are added to the crude selection,
adding 300g/t of ammonium sulfide, 200g/t of ethyl xanthate and 200g/t of α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid into the second crude selection;
scavenging one, adding 100g/t of ammonium sulfide, 50g/t of ethyl xanthate and 50g/t of α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid,
adding 25g/t of ethyl xanthate and 25g/t of α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid into the second scavenging group, and mixing the products and selecting for 4 times;
firstly, 50g/t of ethyl xanthate and 50g/t of α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid are added,
selecting the second step, adding 25g/t of ethylxanthate and 25g/t of α -hydroxy-2-ethyl-3-phenylpropenyl phosphonous acid,
selecting the medicines, adding no medicines, and selecting the medicines,
selecting the medicines;
and returning the middling sequence of each operation to the previous operation to finally obtain a copper oxide concentrate product.
The grade of the copper oxide concentrate product is 10.65 percent, and the recovery rate of copper reaches 66.52 percent
Comparative example 1
The technological process shown in FIG. 1 is adopted, only α -hydroxyphenyl phosphonous acid is added during the flotation, alkyl xanthate and an activating agent ammonium sulfide are not used, and copper oxide ore is adopted, which is the same as that in example 1, and the specific process is as follows.
Carrying out ball milling on copper oxide minerals by adopting a ball mill and adding 500g/t of water glass in advance to obtain floatable ore pulp with the monomer dissociation degree of more than 90%; 2 times of rough concentration, 2 times of scavenging and 4 times of fine concentration are carried out on floatable ore pulp;
firstly, α -hydroxyphenylphosphonous acid is added in 300g/t,
α -hydroxyphenylphosphonous acid is added into the second crude product at a ratio of 200 g/t;
adding α -hydroxyphenylphosphonous acid 50g/t into the scavenging solution,
sweeping and selecting 20g/t of di- α -hydroxyphenyl propenyl phosphonous acid, and mixing products and then selecting for 4 times;
firstly, α -hydroxyphenylphosphonous acid is added at 30g/t,
selecting II, adding α -hydroxyphenylphosphonous acid 20g/t,
selecting three, adding α -hydroxyphenylphosphonous acid 10g/t,
and selecting four medicines.
And returning the middling sequence of each operation to the previous operation to finally obtain a copper oxide concentrate product.
The grade of the obtained copper oxide concentrate product is 4.6%, and the recovery rate of copper is 65.01%.
Comparative example 2
The process flow shown in figure 1 is adopted, only the activators ammonium sulfide and alkyl xanthate are added during the flotation, α -hydroxyphenyl phosphonous acid is not used, and the copper oxide ore adopted is the same as that in example 1.
Carrying out ball milling on copper oxide minerals by adopting a ball mill and adding 500g/t of water glass in advance to obtain floatable ore pulp with the monomer dissociation degree of more than 90%; 2 times of rough concentration, 2 times of scavenging and 4 times of fine concentration are carried out on floatable ore pulp;
selecting one of the raw materials, adding 400g/t of ammonium sulfide and 150g/t of hexyl xanthate,
adding 300g/t of ammonium sulfide and 100g/t of hexyl xanthate into the second rough selection;
adding 100g/t of ammonium sulfide and 25g/t of hexyl xanthate into the first scavenging,
adding 50g/t of ammonium sulfide and 10g/t of hexyl xanthate into the second scavenging, combining products and then selecting for 4 times;
selecting one, adding hexyl xanthate 15g/t,
selecting two, adding 10g/t of hexyl xanthate,
selecting three, adding 5g/t of hexyl xanthate,
and selecting four medicines.
And returning the middling sequence of each operation to the previous operation to finally obtain a copper oxide concentrate product.
The grade of the obtained copper oxide concentrate product is 5.1 percent, and the recovery rate of copper is 28.73 percent.
Comparative example 3
The technological process shown in FIG. 1 is adopted, only α -hydroxyphenyl phenyl phosphinic acid and alkyl xanthate are added during the flotation, the activating agent ammonium sulfide is not used, and the copper oxide ore adopted is the same as that in example 1.
Ball-milling the copper oxide mineral by a ball mill to obtain floatable ore pulp with the monomer dissociation degree of more than 90%; 2 times of rough concentration, 2 times of scavenging and 4 times of fine concentration are carried out on floatable ore pulp;
firstly, α -hydroxyphenylphosphonous acid 300g/t and hexylxanthate 150g/t are added,
α -hydroxyphenylphosphonous acid 200g/t and hexylxanthate 100g/t are added into the second crude material;
α -hydroxyphenylphosphonous acid 50g/t and hexylxanthate 25g/t are added in the first scavenging step,
adding α -hydroxyphenyl phenyl phosphonous acid 20g/t and hexyl xanthate 10g/t into the second scavenging, and mixing the products and selecting for 4 times;
firstly, α -hydroxyphenylphosphonous acid 30g/t and hexylxanthate 15g/t are added,
selecting II, adding α -hydroxyphenylphosphonous acid 20g/t and hexylxanthate 10g/t,
selecting three, adding α -hydroxyphenylphosphonous acid 10g/t and hexylxanthate 5g/t,
and selecting four medicines.
And returning the middling sequence of each operation to the previous operation to finally obtain a copper oxide concentrate product.
The grade of the obtained copper oxide concentrate product is 7.6 percent, and the recovery rate of copper is 65.22 percent.
As can be seen from the above three comparative examples, the grade of the obtained copper oxide concentrate product is significantly reduced by adding only one or two of the activating agent, α -hydroxyarylphosphinic acid and alkylxanthene during flotation, wherein the recovery rate of comparative example 2 is significantly reduced.
Claims (10)
1. A copper oxide ore flotation method is characterized by comprising the following steps:
mixing copper oxide ore raw ore with an inhibitor, and grinding until the monomer dissociation degree is more than 90% to obtain floatable ore pulp; and the number of the first and second groups,
adding an activating agent and a collecting agent into the floatable ore pulp, then carrying out flotation, carrying out rough concentration for 2 times, scavenging for 2 times, carrying out fine concentration for 4 times, returning the middlings in each operation to the previous operation in sequence, and finally carrying out flotation to obtain a copper oxide concentrate product, wherein the collecting agent is a mixed collecting agent of α -hydroxyarylphosphinic acid and alkyl xanthate.
2. The method according to claim 1, wherein the inhibitor is water glass and is added in an amount of 10-600 g per ton of the raw copper oxide ore.
3. A method according to claim 1 or 2, characterized in that the activator is sodium sulfide and/or ammonium sulfide.
4. A method according to claim 3 wherein the collector is a mixed collector of α -hydroxyarylphosphinic acid and an alkylxanthene, wherein the α -hydroxyarylphosphinic acid is a compound of formula (I):
in the general formula (I), R1Is optionally selected from hydrogen atom or C1-C2Alkyl groups of (a);
the alkyl xanthate is a compound shown in a general formula (II):
in the general formula (II), R2Is C2-C6Alkyl group of (1).
5. The method according to claim 4, wherein the collector is a mixed collector of α -hydroxyarylphosphinic acid and an alkylxanthate, and the mass ratio of α -hydroxyarylphosphinic acid to the alkylxanthate in the mixed collector is (1-2): 1.
6. The process of claim 4 or 5, wherein the α -hydroxyarylphosphinic acid is α -hydroxyphenylphosphonous acid, α -hydroxy-2-methyl-3-phenylpropenylphosphonous acid, or α -hydroxy-2-ethyl-3-phenylpropenylphosphonous acid.
7. The method of claim 6, wherein the alkylxanthate is hexylxanthate, butylxanthate, or ethylxanthate.
8. A method according to claim 7, wherein the collector is a mixed collector of α -hydroxyphenylphosphonous acid and hexylxanthate, or a mixed collector of α -hydroxy-2-methyl-3-phenylpropenylphosphonous acid and butylxanthate, or a mixed collector of α -hydroxy-2-ethyl-3-phenylpropenylphosphonous acid and ethylxanthate.
9. The method of claim 8, wherein the activator is ammonium sulfide.
10. The method according to claim 9, characterized in that the flotation of the floatable pulp uses a process of 2 roughers, 2 sweeps and 4 beneficiates, comprising the steps of:
s1: adding an activating agent ammonium sulfide and a mixed collecting agent into the floatable ore pulp for primary roughing, wherein the addition amount of the activating agent is 350-450 g of the activating agent added to each ton of copper oxide ore raw ore, and the addition amount of the mixed collecting agent is 400-600 g of the mixed collecting agent added to each ton of copper oxide ore raw ore;
after the first roughing, performing second roughing, wherein the addition amount of an activating agent is 250-350 g per ton of the copper oxide ore raw ore, and the addition amount of a mixed collecting agent is 300-400 g per ton of the copper oxide ore raw ore;
s2: carrying out first scavenging after the second roughing, wherein the addition amount of the activating agent is 50-150 g of the activating agent added in each ton of the copper oxide ore raw ore, and the addition amount of the mixed collecting agent is 75-200 g of the mixed collecting agent added in each ton of the copper oxide ore raw ore;
carrying out second scavenging after the first scavenging, wherein the addition amount of the activating agent is 0-50 g of the activating agent added in each ton of the copper oxide ore raw ore, and the addition amount of the mixed collecting agent is 30-100 g of the activating agent added in each ton of the copper oxide ore raw ore;
s3: carrying out first concentration after the second scavenging, wherein the addition amount of the mixed collecting agent is 40-100 g of the mixed collecting agent added to each ton of the copper oxide ore raw ore;
carrying out secondary concentration after the primary concentration, wherein the addition amount of the mixed collecting agent is 30-50 g of the mixed collecting agent added to each ton of the copper oxide ore raw ore;
carrying out third concentration after the second concentration, wherein the addition amount of the mixed collecting agent is 0-20 g of the mixed collecting agent added to each ton of the copper oxide ore raw ore;
carrying out fourth concentration after the third concentration, wherein no medicament is added in the fourth concentration;
and returning the middling sequence of each step of operation to the previous operation to finally obtain the copper oxide concentrate product.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387426A (en) * | 2021-01-19 | 2021-02-23 | 矿冶科技集团有限公司 | Flotation method for copper oxide ore |
| CN113083512A (en) * | 2021-04-07 | 2021-07-09 | 中南大学 | Method for promoting flotation of copper oxide ores |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450116A (en) * | 1981-07-21 | 1984-05-22 | Hoechst Aktiengesellschaft | 3-Oxypropyleneimino-bis-(methylene phosphonic acids) and their salts, process for their manufacture and their use |
| DD259155A1 (en) * | 1983-03-29 | 1988-08-17 | Adw Ddr | Means for the flotation of OXIDER ore, in particular OXIDINE ZINNERZE |
| DD259156A1 (en) * | 1983-03-29 | 1988-08-17 | Adw Ddr | Means for the flotation of OXIDER ore, in particular OXIDINE ZINNERZE |
| DD259153A1 (en) * | 1983-03-29 | 1988-08-17 | Adw Ddr | Means for the flotation of OXIDER ore, in particular OXIDINE ZINNERZE |
| CN101537395A (en) * | 2008-12-04 | 2009-09-23 | 清华大学 | Synthetic method of floating agent of organophosphorous compound and organophosphorous floating agent |
| CN103613614A (en) * | 2013-11-13 | 2014-03-05 | 中南大学 | Alpha-hydroxy unsaturated alkylphosphonic acid compound as well as preparation method and application of alpha-hydroxy unsaturated alkylphosphonic acid compound |
| CN107930859A (en) * | 2018-01-12 | 2018-04-20 | 东北大学 | A kind of non-sulfide flotation collector and its application |
| CN108187917A (en) * | 2018-01-12 | 2018-06-22 | 东北大学 | A kind of aromatic radical phosphonic acids and its esters collecting agent and its application |
| CN108212541A (en) * | 2018-03-19 | 2018-06-29 | 长春黄金研究院有限公司 | Combined capturing and collecting agent and application method in a kind of cupric oxide ore flotation |
| CN108927292A (en) * | 2017-05-24 | 2018-12-04 | 中蓝连海设计研究院 | A kind of amino phosphine acid compounds and its preparation method and application |
| CN108993778A (en) * | 2018-06-22 | 2018-12-14 | 昆明理工大学 | A kind of scheelite normal temperature flotation method |
-
2020
- 2020-06-03 CN CN202010502534.XA patent/CN111482278B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4450116A (en) * | 1981-07-21 | 1984-05-22 | Hoechst Aktiengesellschaft | 3-Oxypropyleneimino-bis-(methylene phosphonic acids) and their salts, process for their manufacture and their use |
| DD259155A1 (en) * | 1983-03-29 | 1988-08-17 | Adw Ddr | Means for the flotation of OXIDER ore, in particular OXIDINE ZINNERZE |
| DD259156A1 (en) * | 1983-03-29 | 1988-08-17 | Adw Ddr | Means for the flotation of OXIDER ore, in particular OXIDINE ZINNERZE |
| DD259153A1 (en) * | 1983-03-29 | 1988-08-17 | Adw Ddr | Means for the flotation of OXIDER ore, in particular OXIDINE ZINNERZE |
| CN101537395A (en) * | 2008-12-04 | 2009-09-23 | 清华大学 | Synthetic method of floating agent of organophosphorous compound and organophosphorous floating agent |
| CN103613614A (en) * | 2013-11-13 | 2014-03-05 | 中南大学 | Alpha-hydroxy unsaturated alkylphosphonic acid compound as well as preparation method and application of alpha-hydroxy unsaturated alkylphosphonic acid compound |
| CN108927292A (en) * | 2017-05-24 | 2018-12-04 | 中蓝连海设计研究院 | A kind of amino phosphine acid compounds and its preparation method and application |
| CN107930859A (en) * | 2018-01-12 | 2018-04-20 | 东北大学 | A kind of non-sulfide flotation collector and its application |
| CN108187917A (en) * | 2018-01-12 | 2018-06-22 | 东北大学 | A kind of aromatic radical phosphonic acids and its esters collecting agent and its application |
| CN108212541A (en) * | 2018-03-19 | 2018-06-29 | 长春黄金研究院有限公司 | Combined capturing and collecting agent and application method in a kind of cupric oxide ore flotation |
| CN108993778A (en) * | 2018-06-22 | 2018-12-14 | 昆明理工大学 | A kind of scheelite normal temperature flotation method |
Non-Patent Citations (2)
| Title |
|---|
| 艾光华: "《铜矿选矿技术与实践》", 31 December 2017, 冶金工业出版社 * |
| 董英等: "《常用有色金属资源开发与加工》", 31 August 2005, 冶金工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387426A (en) * | 2021-01-19 | 2021-02-23 | 矿冶科技集团有限公司 | Flotation method for copper oxide ore |
| CN112387426B (en) * | 2021-01-19 | 2021-04-02 | 矿冶科技集团有限公司 | Flotation method for copper oxide ore |
| CN113083512A (en) * | 2021-04-07 | 2021-07-09 | 中南大学 | Method for promoting flotation of copper oxide ores |
| CN113083512B (en) * | 2021-04-07 | 2022-01-14 | 中南大学 | Method for promoting flotation of copper oxide ores |
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