CN113634375A - Beneficiation method for low-grade mixed copper oxide ore - Google Patents
Beneficiation method for low-grade mixed copper oxide ore Download PDFInfo
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- CN113634375A CN113634375A CN202110929483.3A CN202110929483A CN113634375A CN 113634375 A CN113634375 A CN 113634375A CN 202110929483 A CN202110929483 A CN 202110929483A CN 113634375 A CN113634375 A CN 113634375A
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- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000005751 Copper oxide Substances 0.000 title claims abstract description 45
- 229910000431 copper oxide Inorganic materials 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000010949 copper Substances 0.000 claims abstract description 62
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052802 copper Inorganic materials 0.000 claims abstract description 56
- 238000005188 flotation Methods 0.000 claims abstract description 47
- 239000012141 concentrate Substances 0.000 claims abstract description 31
- 241000907663 Siproeta stelenes Species 0.000 claims abstract description 9
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims abstract description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 9
- 239000004088 foaming agent Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 7
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 6
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 6
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 6
- 229910021532 Calcite Inorganic materials 0.000 claims description 6
- 239000005639 Lauric acid Substances 0.000 claims description 6
- 239000005642 Oleic acid Substances 0.000 claims description 6
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 6
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 6
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 230000002000 scavenging effect Effects 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 241000692870 Inachis io Species 0.000 claims description 5
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- GGLZPLKKBSSKCX-YFKPBYRVSA-N L-ethionine Chemical compound CCSCC[C@H](N)C(O)=O GGLZPLKKBSSKCX-YFKPBYRVSA-N 0.000 claims description 4
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 claims description 4
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 claims description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N iso-butyl alcohol Natural products CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 4
- 229940035429 isobutyl alcohol Drugs 0.000 claims description 4
- -1 methyl isobutyl Chemical group 0.000 claims description 4
- 229940116411 terpineol Drugs 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012991 xanthate Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 239000003002 pH adjusting agent Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 19
- 239000003814 drug Substances 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 10
- 239000011707 mineral Substances 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- QTANTQQOYSUMLC-UHFFFAOYSA-O Ethidium cation Chemical compound C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CC)=C1C1=CC=CC=C1 QTANTQQOYSUMLC-UHFFFAOYSA-O 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VDEUYMSGMPQMIK-UHFFFAOYSA-N benzhydroxamic acid Chemical compound ONC(=O)C1=CC=CC=C1 VDEUYMSGMPQMIK-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229910001779 copper mineral Inorganic materials 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
- B03D1/018—Mixtures of inorganic and organic compounds
-
- 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
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a beneficiation method of low-grade mixed copper oxide ore, which is technically characterized in that: by adopting the recovery process flow of preferably floating copper sulfide and malachite and reverse flotation decalcification of tailings and adopting a reasonable medicament system, the method can obtain a copper concentrate I with the grade of 21 percent and a reverse flotation copper concentrate II with the grade of 8 percent in part, thereby realizing the comprehensive recovery rate of the low-grade mixed copper oxide reaching more than 92 percent and providing an effective and economic method for the comprehensive recovery and utilization of the low-grade copper oxide ore.
Description
Technical Field
The invention belongs to the technical field of flotation and recovery of low-grade copper oxide minerals, and particularly relates to a beneficiation method of low-grade mixed copper oxide ores.
Background
At present, the copper oxide ore resource which is generally directly leached abroad has high copper content and low calcium content, the copper content is generally more than 5 percent, the calcium content is generally less than 10 percent, and the copper oxide ore resource belongs to a high-quality copper oxide ore resource. The method of direct acid leaching-electrolysis can economically obtain high-quality cathode copper. The main area for developing and applying the resources is Africa, the process adopted by many countries for processing copper oxide ores containing 5% of copper is mainly the recovery process of acid leaching-electrolysis after crushing-grinding, and the leaching rate can reach more than 90%.
The copper oxide ore in China is characterized by low grade, fine and impurity, little high-quality copper oxide ore, complex ore structure, fine embedded particle size, fine or micro-fine particle embedded distribution of most copper oxide ore deposits, fine particle embedded distribution of copper oxide minerals and other gangue minerals, complex mineral types and the like, and the copper oxide ore needs to be pretreated before utilization.
Disclosure of Invention
In order to overcome the defects of the prior art, treat copper oxide resources with calcite content higher than 30 percent and solve the key technical problems of high acid consumption and low flotation recovery rate of low-grade mixed copper oxide leaching, the invention aims to provide an effective, economic and feasible beneficiation method of low-grade mixed copper oxide ores, which adopts a flotation recovery process flow of preferentially floating copper ores and then reverse flotation and combines the adoption of efficient flotation reagents and a reasonable reagent system to achieve the respective enrichment and recovery of copper-containing minerals,
in order to achieve the purpose, the invention adopts the technical scheme that:
a mineral separation method for low-grade mixed copper oxide ore adopts a recovery process flow of preferential flotation of copper sulfide and malachite and reverse flotation of tailings, adopts a reasonable chemical system, and achieves comprehensive recovery of low-grade mixed copper oxide ore, and specifically comprises the following steps:
step 1, taking low-grade mixed copper oxide ore, grinding and mixing slurry, wherein the copper grade in the low-grade mixed copper oxide ore is 0.8-1.5%, the oxidation rate is 50-90%, and the low-grade mixed copper oxide ore mainly comprises malachite and peacock stone;
step 2, adjusting the pH value of the ore pulp obtained in the step 1, adding a collecting agent I and a foaming agent, and performing flotation in a flotation machine to obtain a foam product, namely a copper concentrate I mainly composed of copper sulfide and malachite;
and 3, adding a second collecting agent into the flotation tailings obtained in the step 2, and performing reverse flotation in a flotation machine to obtain a second copper concentrate.
Preferably, in the step 1, the ore is crushed and ground to 50% of-0.074 mm, and water is added for pulp mixing until the mass concentration is 33%.
Preferably, in the step 2, sodium carbonate is used as a pH regulator to regulate the pH to 9.
Preferably, in the step 2, the first collector is a mixture of xanthate collectors, butyl xanthate and ethidium nitrate, and the dosage is 500 g/t.
Preferably, the weight ratio of the butyl xanthate to the ethidium nitrate is 1 to (0-1), and the ethidium nitrate is not 0.
Preferably, in step 2, the foaming agent is one or two of terpineol and methyl isobutyl alcohol, and the dosage is 10-30g/t, and when the two are mixed, the ratio of the dosages is 1: 1.
Preferably, in the step 2, the flotation comprises primary roughing and primary concentrating, and the grade of the obtained copper concentrate I reaches more than 21%.
Preferably, in the step 3, the second collecting agent is a mixture of two or more of fatty acid collecting agents oleic acid, sodium dodecyl sulfate, lauric acid and hydroximic acid, the dosage is 1600g/t, and the ratio of the dosage of each component is 1: 0-0.5 by weight.
Preferably, in the step 3, the reverse flotation comprises three times of blank concentration and one time of scavenging, and the grade of the obtained copper concentrate II reaches more than 8%.
In the step 3, the obtained foam product is tailings mainly composed of calcite, and the obtained tank bottom product is copper concentrate II mainly composed of peacock stone.
Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps of crushing, grinding, preferentially floating easy-floating copper minerals (copper sulfide and malachite), reverse flotation decalcification of copper tails and the like, and can obtain high-grade copper concentrates (the grade reaches 21%) and qualified leached raw material copper concentrates (copper reverse flotation concentrates 8%) through a partial separation form of the forward and reverse flotation and by adopting a reasonable medicament system, thereby effectively improving the comprehensive recovery rate (more than 92%) of the low-grade mixed copper oxide ore, greatly reducing the leached acid consumption, having lower integral flotation cost and higher technical and economic popularization values, and being particularly used for mineral separation and enrichment of low-grade mixed copper oxide ore resources with the calcite higher than 30%.
Drawings
FIG. 1 is a basic process flow diagram of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
The invention provides a beneficiation and pre-enrichment method of low-grade mixed copper oxide ore, which adopts the methods of crushing, ore grinding, preferential flotation of easily-floated copper mineral, copper tail reverse flotation decalcification and the like, and can obtain a high-grade copper concentrate I and a qualified leached raw material copper concentrate II through a forward and reverse flotation fractional separation form, thereby effectively improving the comprehensive recovery of the low-grade mixed copper oxide ore, as shown in figure 1, the method mainly comprises the following steps:
a. crushing and grinding the low-grade mixed copper oxide ore until the particle size is-0.074 mm and the particle size accounts for 50%, adding water to adjust the pulp to the mass concentration of 33%, wherein the copper grade in the low-grade mixed copper oxide ore is 0.8-1.5%, the oxidation rate is 50-90%, and the low-grade mixed copper oxide ore mainly comprises malachite and silicobrome;
b. adding sodium carbonate as a pH regulator, regulating the pH to 9, adding a collecting agent I (a mixture of butyl xanthate and ethionine) with the dosage of 500g/t, adding a foaming agent (pine oil and/or methyl isobutyl alcohol) with the dosage of 10-30g/t, and performing flotation (primary roughing and primary concentration) in a flotation machine to obtain a foam product I, wherein the obtained foam product is a copper concentrate I, the grade of the foam product I can reach more than 21%, the foam product mainly comprises copper sulfide and malachite, and a tank bottom product mainly comprises calcite and peacock stone;
c. b, adding a collector II (a mixture of two or more of fatty acid collector oleic acid, sodium dodecyl sulfate, lauric acid and hydroximic acid) with the dosage of 1600g/t into the flotation tailings of the step b, and performing reverse flotation (three times of blank concentration and one time of scavenging) in a flotation machine to obtain a tank bottom product, namely a copper concentrate II, wherein the grade of the tank bottom product can reach more than 8 percent and the tank bottom product mainly comprises the peacock stone; the resulting foam product is tailings, which consist primarily of calcite.
The following examples are intended to further illustrate the invention, but are not intended to limit the invention.
Example 1
The method is adopted to carry out flotation test on certain low-grade mixed copper ore in Yunnan. The copper content in the mineral is 1.19%, and the oxidation rate is 85%.
Referring to fig. 1, raw ore is crushed to-0.074 mm accounting for 60% and then subjected to flotation. During the flotation process, the added pH regulator is sodium carbonate, and the pH is adjusted to 9.3. The added collecting agent I is butyl xanthate, the using amount is 800g/t, the foaming agent is methyl isobutyl alcohol (MIBC), the using amount is 40g/t, and copper concentrate I is obtained through one-time rough separation and one-time fine separation, and the copper grade is 21.03%. The tailing of the flotation is added with a mixture of oleic acid, sodium dodecyl sulfate and lauric acid, and the using amount is 1600 g/t. And finally obtaining a second copper concentrate with the copper grade of 8.15 percent through two times of concentration and one time of scavenging. In the closed circuit, the total copper recovery was over 90% and the results are shown in table 1.
Table 1 example 1 test results
| Product name | Yield (%) | Grade of Cu (%) | Cu recovery (%) |
| Copper concentrate one | 1.85 | 21.03 | 32.69 |
| Copper concentrate II | 8.60 | 8.15 | 58.90 |
| Tailings | 89.55 | 0.11 | 9.41 |
| Raw ore | 100.00 | 1.19 | 100.00 |
Example 2
The method is adopted to carry out flotation test on certain low-grade mixed copper ore in Yunnan. The copper content in the mineral is 1.45%, and the oxidation rate is 80%.
Referring to fig. 1, raw ore is crushed to 50% of-0.074 mm and then subjected to flotation. During the flotation process, the added pH regulator is sodium carbonate, and the pH is adjusted to 9.5. The added collecting agent I is a mixture of butyl xanthate and ethidium and nitrogen, the using amount is 1000g/t, the foaming agent is terpineol, the using amount is 35g/t, and copper concentrate I is obtained through once roughing and once concentrating, and the copper grade is 21.58%. The tailing of the flotation is added with a mixture of oleic acid, sodium dodecyl sulfate, lauric acid and benzohydroxamic acid, and the dosage is 1600 g/t. And finally obtaining a second copper concentrate with the copper grade of 8.19 percent through two times of concentration and one time of scavenging. In the closed circuit scheme, the total copper recovery was over 92% and the test results are shown in table 2.
Table 2 example 2 test results
| Product name | Yield (%) | Grade of Cu (%) | Cu recovery (%) |
| Copper concentrate one | 2.25 | 21.58 | 33.49 |
| Copper concentrate II | 10.38 | 8.19 | 58.63 |
| Tailings | 87.37 | 0.13 | 7.98 |
| Raw ore | 100.00 | 1.45 | 100.00 |
Example 3
The method is adopted to carry out flotation test on certain low-grade mixed copper ore in Yunnan. The copper content in the mineral is 1.31%, and the oxidation rate is 83%.
Referring to fig. 1, raw ore is crushed to 46% of-0.074 mm and then subjected to flotation. During the flotation process, the added pH regulator is sodium carbonate, and the pH is adjusted to 9.3. The added collecting agent I is a mixture of butyl xanthate and ethidium and azote, the using amount is 1000g/t, the foaming agent is a mixture of terpineol oil and MIBC, the using amount is 40g/t, and copper concentrate I is obtained through one-time rough concentration and one-time fine concentration, and the copper grade is 21.03%. The tailing of the flotation is added with a mixture of oleic acid, lauric acid and benzohydroxamic acid, and the dosage is 1600 g/t. And finally obtaining a second copper concentrate with the copper grade of 8.61 percent through two times of concentration and one time of scavenging. In the closed circuit scheme, the total copper recovery was over 93% and the results are shown in table 3.
Table 3 example 3 test results
| Product name | Yield (%) | Grade of Cu (%) | Cu recovery (%) |
| Copper concentrate one | 2.02 | 21.03 | 32.32 |
| Copper concentrate II | 9.30 | 8.61 | 60.93 |
| Tailings | 88.68 | 0.10 | 6.75 |
| Raw ore | 100.00 | 1.31 | 100.00 |
The above examples prove that the invention effectively improves the comprehensive recovery rate of the low-grade mixed copper oxide ore.
Claims (10)
1. The beneficiation method of the low-grade mixed copper oxide ore is characterized by comprising the following steps:
step 1, taking low-grade mixed copper oxide ore, grinding and mixing slurry, wherein the copper grade in the low-grade mixed copper oxide ore is 0.8-1.5%, the oxidation rate is 50-90%, and the low-grade mixed copper oxide ore mainly comprises malachite and peacock stone;
step 2, adjusting the pH value of the ore pulp obtained in the step 1, adding a collecting agent I and a foaming agent, and performing flotation in a flotation machine to obtain a foam product, namely a copper concentrate I mainly composed of copper sulfide and malachite;
and 3, adding a second collecting agent into the flotation tailings obtained in the step 2, and performing reverse flotation in a flotation machine to obtain a second copper concentrate.
2. The method for concentrating the low-grade mixed copper oxide ore according to claim 1, wherein in the step 1, the ore is crushed and ground to 50% of-0.074 mm, and water is added to the crushed ore to adjust the crushed ore to 33% of mass concentration.
3. The method for beneficiation of a low-grade mixed copper oxide ore according to claim 1, wherein in the step 2, the pH is adjusted to 9 by using sodium carbonate as a pH adjuster.
4. The beneficiation method for low-grade mixed copper oxide ore according to claim 1, wherein in the step 2, the first collecting agent is a mixture of xanthate and ethionine, which are xanthate collecting agents, and the dosage is 500 g/t.
5. The method for beneficiation of low-grade mixed copper oxide ore according to claim 4, wherein the ratio of the amount of the butyl xanthate to the amount of the ethionine is 1 to (0-1) by weight, and the amount of the ethionine is not 0.
6. The method for concentrating low-grade mixed copper oxide ore according to claim 1, wherein in the step 2, the foaming agent is one or two of terpineol and methyl isobutyl alcohol, and the amount of the foaming agent is 10-30g/t, and when the two are mixed, the ratio of the two is 1: 1 by weight.
7. The method for beneficiation of low-grade mixed copper oxide ore according to claim 1, wherein in the step 2, the flotation comprises primary roughing and primary concentration, and the grade of the obtained copper concentrate I is more than 21%.
8. The method for beneficiation of low-grade mixed copper oxide ore according to claim 1, wherein in the step 3, the two collecting agents are two or more of fatty acid collecting agents oleic acid, sodium dodecyl sulfate, lauric acid and hydroximic acid, the mixing amount is 1600g/t, and the ratio of the two components is 1: 0-0.5.
9. The beneficiation method for the low-grade mixed copper oxide ore according to claim 1, wherein in the step 3, the reverse flotation comprises three times of blank concentration and one time of scavenging, and the grade of the obtained copper concentrate II reaches more than 8%.
10. A process for beneficiation of low grade mixed copper oxide ore according to claim 1, wherein in step 3, the obtained foam product is tailings mainly composed of calcite, and the obtained tank bottom product is copper concentrate two mainly composed of sildentite.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5057209A (en) * | 1989-04-11 | 1991-10-15 | The Dow Chemical Company | Depression of the flotation of silica or siliceous gangue in mineral flotation |
| CN101831559A (en) * | 2010-05-21 | 2010-09-15 | 昆明理工大学 | Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore |
| CN103934096A (en) * | 2014-04-03 | 2014-07-23 | 广东省工业技术研究院(广州有色金属研究院) | Mixed copper ore recycling method |
| CN105149085A (en) * | 2015-08-06 | 2015-12-16 | 中南大学 | Flotation and acid leaching process for complex low-grade copper oxide ore |
| CN106944244A (en) * | 2017-03-09 | 2017-07-14 | 昆明理工大学 | A kind of method that coated complex copper oxide ore is recycled |
| CN107971123A (en) * | 2017-11-17 | 2018-05-01 | 昆明理工大学 | A kind of flotation and metallurgy method of irony coated mixed copper ore |
| CN109806980A (en) * | 2019-01-28 | 2019-05-28 | 西安建筑科技大学 | A kind of method and its application of malachite sulfur product control |
| CN111451003A (en) * | 2020-03-05 | 2020-07-28 | 铜陵有色金属集团股份有限公司 | Beneficiation method for copper-containing talc-serpentine ore easy to argillize and float |
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- 2021-08-13 CN CN202110929483.3A patent/CN113634375A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5057209A (en) * | 1989-04-11 | 1991-10-15 | The Dow Chemical Company | Depression of the flotation of silica or siliceous gangue in mineral flotation |
| CN101831559A (en) * | 2010-05-21 | 2010-09-15 | 昆明理工大学 | Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore |
| CN103934096A (en) * | 2014-04-03 | 2014-07-23 | 广东省工业技术研究院(广州有色金属研究院) | Mixed copper ore recycling method |
| CN105149085A (en) * | 2015-08-06 | 2015-12-16 | 中南大学 | Flotation and acid leaching process for complex low-grade copper oxide ore |
| CN106944244A (en) * | 2017-03-09 | 2017-07-14 | 昆明理工大学 | A kind of method that coated complex copper oxide ore is recycled |
| CN107971123A (en) * | 2017-11-17 | 2018-05-01 | 昆明理工大学 | A kind of flotation and metallurgy method of irony coated mixed copper ore |
| CN109806980A (en) * | 2019-01-28 | 2019-05-28 | 西安建筑科技大学 | A kind of method and its application of malachite sulfur product control |
| CN111451003A (en) * | 2020-03-05 | 2020-07-28 | 铜陵有色金属集团股份有限公司 | Beneficiation method for copper-containing talc-serpentine ore easy to argillize and float |
Non-Patent Citations (1)
| Title |
|---|
| 孙传尧: "选矿工程师手册 第1册 上 选矿通论", vol. 1, 冶金工业出版社, pages: 521 - 522 * |
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Application publication date: 20211112 |