CN107115974A - A kind of beneficiation method for improving microfine copper-sulphide ores floatation indicators - Google Patents
A kind of beneficiation method for improving microfine copper-sulphide ores floatation indicators Download PDFInfo
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- CN107115974A CN107115974A CN201710322261.9A CN201710322261A CN107115974A CN 107115974 A CN107115974 A CN 107115974A CN 201710322261 A CN201710322261 A CN 201710322261A CN 107115974 A CN107115974 A CN 107115974A
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
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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
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/016—Macromolecular 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
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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
-
- 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 present invention provides a kind of beneficiation method for improving microfine copper-sulphide ores floatation indicators, belongs to technical field of beneficiation.This method by by powered surfactant formulatory into concentration be the critical micelle concentration of surfactant solution, the powered miniature foam of generation is stirred in agitator high speed, miniature foam is introduced into microfine copper-sulphide ores flotation system, by regulating and controlling ore pulp property, powered miniature foam is set selectively to be attached to copper sulfide mineral surface by electrostatic interaction, strengthen its surface hydrophobic, so as to improve the recovery rate in ore-dressing of microfine copper-sulphide ores.The present invention solves the technical barrier that microfine copper-sulphide ores are difficult to effectively reclaim, to realize low-grade difficult copper-sulphide ores efficiently using significant.
Description
Technical field
The present invention relates to technical field of beneficiation, a kind of ore dressing side for improving microfine copper-sulphide ores floatation indicators is particularly related to
Method.
Background technology
With the mankind's continually developing and consuming to mineral resources, rich ore and tractable ore resource are reduced increasingly, such as
The utilization of what economical and efficient is low-grade, disseminated grain size is thin, composition is complicated ore has become the challenge that we are faced with.To make
The abundant monomer dissociation of valuable mineral in difficult mining seam, it is often necessary to finely ground ore.But with the reduction of granularity, mineral grain
Flotation behavior change, it is very big to reclaim these micro-size fraction valuable mineral difficulty using conventional flotation technique.
With conventional grade mineral facies ratio, the major reason that micro-size fraction mineral are difficult to flotation recovery is micro-size fraction mineral
Quality it is small, cause the momentum of mineral grain small, be difficult to overcome energy barrier between ore particle and bubble in collision process and can not
Adhere on bubble.In order to improve the flotation recovery rate of micro-size fraction mineral, ore dressing worker has carried out numerous studies, finds to increase
The apparent particle diameter of big micro-size fraction mineral reduces the sticking probability that bubble size is raising fine-particle minerals and bubble, increases micro-
The important means of fine fraction mineral flotation recovery rate.Recognize based on more than, ore dressing worker proposes Hydrophobic Agglomerate Separation, is combined
The technologies such as agglomerate sorting, selective flocculation sorting, nano bubble flotation, electrolytic floatage.Although some fine particle mineral flotations are returned
Receipts technology is applied in indivedual mines, but the problems such as due to these technologies deficiency in itself or ore properties complicated, microfine
The flotation of level mineral reclaims problem still without being solved very well
Copper resource is one of important foundation raw material for being most widely used in the national economic development, is widely used in electricity
The fields such as gas, light industry, machine-building, building industry, national defense industry, aluminium is only second in the consumption of China's nonferrous materials.
China is copper resource big country, but the consumption figure growth rate of copper is significantly greater than production increase speed in recent years.With communication, electric power
The popularization of quickening and automobile and IT product Deng infrastructure construction, China will continuation to the demand of copper products from now on
Increase substantially.But with a large amount of exploitations of resource, the increasingly poor thin hydridization of copper resource, the high efficiente callback to copper resource brings shadow
Ring.According to statistics, the whole world there are about 1/6th copper resource and lost because of fine size in mine tailing every year.Therefore, develop micro-
Particulate copper-sulphide ores flotation new technology, realizes the high efficiente callback of micro-size fraction copper-sulphide ores, the efficient utilization to realizing copper resource
It is significant.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of beneficiation method for improving microfine copper-sulphide ores floatation indicators.
This method step is as follows：
1) preparation of powered miniature foam：Powered surfactant is configured to certain density solution and adds high-speed stirring
Mix in bucket, 5-10min is stirred under certain speed, prepare charged microvesicle；
(2) preparation of ore and ore grinding：It is that -0.074mm contents account for 80%-90% by copper sulfide ore ore grinding to fineness；
(3) regulator lime, inhibitor locust bean gum are added into the ore pulp obtained by step (2), collecting agent butyl xanthate, is risen
No. 2 oil of infusion, which are stirred, sizes mixing, wherein, lime consumption is 500-1000g/t, and locust bean gum consumption is 300-500g/t, fourth
Xanthate consumption is 100-150g/t, and No. 2 oily consumptions are 10-30g/t；
(4) ore pulp after the stirring that step (3) is obtained is sized mixing carries out copper sulfide mineral roughing, obtains rougher concentration and thick
Select mine tailing；
(5) progress of regulator lime is added into rougher concentration obtained by step (4) selected twice, obtains concentrate one, it is selected
Chats order return to upper level operation, added lime consumption selected for the first time is 400-600g/t, second of selected added stone
Grey consumption is 200-300g/t；
(6) No. 2 oil of collecting agent butyl xanthate and foaming agent are added into rougher tailings obtained by step (4) to be scanned twice,
Scan chats order and return to upper level operation, it is 60-80g/t that added butyl xanthate consumption is scanned for the first time, and No. 2 oily consumptions are 10-
20g/t, it is 30-40g/t that added butyl xanthate consumption is scanned for the second time, and No. 2 oily consumptions are 10-20g/t；Mine tailing is scanned to be divided
Level, obtains the two parts of granularity for+0.037mm and -0.037mm, and+0.037mm grades are used as mine tailing one；
(7) -0.037mm the grades for obtaining step (6) are transferred in flotation column, are passed through using peristaltic pump from flotation column bottom
Charged microvesicle made from step (1), is passed through after charged microvesicle 2min and is passed through air progress flotation, and column flotation mine tailing is mine tailing
Two, column flotation concentrate is concentrate two；Gained concentrate one and concentrate two in step (5) are merged into final concentrate, by step
(6) gained mine tailing one and mine tailing two merge into true tailings in.
Wherein, surfactant powered in step (1) is dodecyl sodium sulfate, lauryl sodium sulfate, dodecane
One kind in base benzene sulfonic acid sodium salt, DTAB.
The concentration for the powered surfactant solution prepared in step (1) is selected powered surfactant
Critical micelle concentration.
The mixing speed of step (1) high speed agitator is 4500-8000 revs/min.
Copper-sulphide ores are the superfine difficult copper-sulphide ores of disseminated grain size in step (2).
The volume that charged microvesicle is passed through in step (7) is 1st/1 to eight/10ths of handled pulp volume.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
Powered miniature foam is introduced microfine copper-sulphide ores flotation system by the inventive method, by regulating and controlling ore pulp
Matter, enables powered miniature foam to be selectively attached to microfine copper sulfide mineral surface by electrostatic interaction, strengthens its table
Face hydrophobicity, so as to improve the recovery rate in ore-dressing of microfine copper-sulphide ores.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with specific implementation
Example is described in detail.
The present invention provides a kind of beneficiation method for improving microfine copper-sulphide ores floatation indicators.
Embodiment 1
It is 12 × 10 that neopelex is configured into concentration-3Mol/L solution is added in high-speed stirred bucket,
5min is stirred under 7500 revs/min of rotating speed, the powered charged microvesicle in surface is prepared.Jiangxi Copper Ores are milled down to-
0.074mm contents are 80%, add 600g/t lime, 300g/t locust bean gums, 100g/t butyl xanthates, No. 2 oil of 20g/t and carry out
Size mixing, the ore pulp mixed up is subjected to roughing, rougher concentration and rougher tailings is obtained.Rougher concentration carry out 2 times it is selected, obtain concentrate
1, selected addition lime 600g/t, selected for the second time to add lime 300g/t for the first time, and selected chats order is returned.Rougher tailings
Middle addition 80g/t butyl xanthates, No. 2 oil of 20g/t scan for the first time, are scanned mine tailing and are added 40g/t collecting agent butyl xanthates,
No. 2 oil of 10g/t are scanned for the second time, scan chats order return, obtained mine tailing classification, and+0.037mm grades, which are abandoned, to be made
For mine tailing 1, -0.037mm is transferred in flotation column, is passed through obtained charged microvesicle from flotation column bottom using peristaltic pump, is passed through lotus
Air is passed through after electric microvesicle 2min and carries out flotation, column flotation mine tailing is mine tailing 2, and column flotation concentrate is concentrate 2.Concentrate
1 and concentrate it is 2-in-1 and for final concentrate, mine tailing 1 and mine tailing are 2-in-1 and be true tailings.
Beneficiation test result is as shown in the table.
Float test index (wt%)
Embodiment 2
It is 8.1 × 10 that lauryl sodium sulfate is configured into concentration-3Mol/L solution is added in high-speed stirred bucket,
5min is stirred under 5400 revs/min of rotating speed, the powered charged microvesicle in surface is prepared.Jiangxi Copper Ores are milled down to-
0.074mm contents are 88%, add 800g/t lime, 500g/t locust bean gums, 120g/t butyl xanthates, No. 2 oil of 25g/t and carry out
Size mixing, the ore pulp mixed up is subjected to roughing, rougher concentration and rougher tailings is obtained.Rougher concentration carry out 2 times it is selected, obtain concentrate
1, selected addition lime 400g/t, selected for the second time to add lime 200g/t for the first time, and selected chats order is returned.Rougher tailings
Middle addition 60g/t butyl xanthates, No. 2 oil of 20g/t scan for the first time, are scanned mine tailing and are added 30g/t collecting agent butyl xanthates,
No. 2 oil of 10g/t are scanned for the second time, scan chats order return, scan obtained mine tailing classification, and+0.037mm grades are lost
Abandon as mine tailing 1, -0.037mm is transferred in flotation column, be passed through obtained charged microvesicle from flotation column bottom using peristaltic pump, lead to
Enter to be passed through air after charged microvesicle 2min and carry out flotation, column flotation mine tailing is mine tailing 2, and column flotation concentrate is concentrate 2.
Concentrate 1 and concentrate are 2-in-1 and for final concentrate, and mine tailing 1 and mine tailing are 2-in-1 and be true tailings.
Beneficiation test result is as shown in the table.
Float test index (wt%)
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of beneficiation method for improving microfine copper-sulphide ores floatation indicators, it is characterised in that：Comprise the following steps：
(1) preparation of powered miniature foam：Powered surfactant is configured to certain density solution and adds high-speed stirred
In bucket, 5-10min is stirred under certain speed, charged microvesicle is prepared；
(2) preparation of ore and ore grinding：It is that -0.074mm contents account for 80%-90% by copper sulfide ore ore grinding to fineness；
(3) regulator lime, inhibitor locust bean gum, collecting agent butyl xanthate, foaming agent are added into the ore pulp obtained by step (2)
No. 2 oil are stirred and sized mixing, wherein, lime consumption is 500-1000g/t, and locust bean gum consumption is 300-500g/t, butyl xanthate
Consumption is 100-150g/t, and No. 2 oily consumptions are 10-30g/t；
(4) ore pulp after the stirring that step (3) is obtained is sized mixing carries out copper sulfide mineral roughing, obtains rougher concentration and roughing tail
Ore deposit；
(5) regulator lime is added into rougher concentration obtained by step (4) and carries out selected twice, concentrate one is obtained, it is selected in
Ore deposit order returns to upper level operation, wherein, added lime consumption selected for the first time is 400-600g/t, second of selected added stone
Grey consumption is 200-300g/t；
(6) No. 2 oil of collecting agent butyl xanthate and foaming agent are added into rougher tailings obtained by step (4) to be scanned twice, are scanned
Chats order returns to upper level operation, and it is 60-80g/t that added butyl xanthate consumption is scanned for the first time, and No. 2 oily consumptions are 10-20g/
T, it is 30-40g/t that added butyl xanthate consumption is scanned for the second time, and No. 2 oily consumptions are 10-20g/t；Scan mine tailing to be classified, obtain
To two parts that granularity is+0.037mm and -0.037mm ,+0.037mm grades are used as mine tailing one；
(7) -0.037mm the grades for obtaining step (6) are transferred in flotation column, and step is passed through from flotation column bottom using peristaltic pump
(1) charged microvesicle made from, is passed through after charged microvesicle 2min and is passed through air progress flotation, and column flotation mine tailing is mine tailing two,
Column flotation concentrate is concentrate two；Gained concentrate one and concentrate two in step (5) are merged into final concentrate, by step (6)
Middle gained mine tailing one and mine tailing two merge into true tailings.
2. the beneficiation method according to claim 1 for improving microfine copper-sulphide ores floatation indicators, it is characterised in that：It is described
Powered surfactant is dodecyl sodium sulfate, lauryl sodium sulfate, neopelex, ten in step (1)
One kind in dialkyl group trimethylammonium bromide.
3. the beneficiation method according to claim 1 for improving microfine copper-sulphide ores floatation indicators, it is characterised in that：It is described
The concentration for the powered surfactant solution prepared in step (1) is the critical micell of selected powered surfactant
Concentration.
4. the beneficiation method according to claim 1 for improving microfine copper-sulphide ores floatation indicators, it is characterised in that：It is described
The mixing speed of step (1) high speed agitator is 4500-8000 revs/min.
5. the beneficiation method according to claim 1 for improving microfine copper-sulphide ores floatation indicators, it is characterised in that：It is described
The volume that charged microvesicle is passed through in step (7) is 1st/1 to eight/10ths of handled pulp volume.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790294A (en) * | 2017-10-25 | 2018-03-13 | 江西理工大学 | A kind of method for improving talcose copper nickel sulfide mineral mineral processing index |
| CN107812617A (en) * | 2017-10-25 | 2018-03-20 | 江西理工大学 | One kind improves the difficult copper sulfide ore beneficiation of microfine and refers to calibration method |
| CN109622234A (en) * | 2018-11-16 | 2019-04-16 | 西北矿冶研究院 | Copper sulfide ore combined collector suitable for grading and regrinding tailings |
| CN110064521A (en) * | 2019-04-08 | 2019-07-30 | 江西理工大学 | A kind of beneficiation method of difficult lead zinc sulphur ore |
| CN112439551A (en) * | 2020-11-02 | 2021-03-05 | 西部(重庆)地质科技创新研究院有限公司 | Synthesis process of rare earth collecting agent |
| CN113318855A (en) * | 2021-06-02 | 2021-08-31 | 中国矿业大学 | Flotation system and process for improving quality and reducing impurities of high-clay-content low-grade chalcopyrite |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107790294A (en) * | 2017-10-25 | 2018-03-13 | 江西理工大学 | A kind of method for improving talcose copper nickel sulfide mineral mineral processing index |
| CN107812617A (en) * | 2017-10-25 | 2018-03-20 | 江西理工大学 | One kind improves the difficult copper sulfide ore beneficiation of microfine and refers to calibration method |
| CN107812617B (en) * | 2017-10-25 | 2019-06-21 | 江西理工大学 | A kind of difficult copper sulfide ore beneficiation of raising microfine refers to calibration method |
| CN107790294B (en) * | 2017-10-25 | 2019-08-27 | 江西理工大学 | A method of improving talcose copper nickel sulfide mineral mineral processing index |
| CN109622234A (en) * | 2018-11-16 | 2019-04-16 | 西北矿冶研究院 | Copper sulfide ore combined collector suitable for grading and regrinding tailings |
| CN110064521A (en) * | 2019-04-08 | 2019-07-30 | 江西理工大学 | A kind of beneficiation method of difficult lead zinc sulphur ore |
| CN110064521B (en) * | 2019-04-08 | 2022-01-11 | 江西理工大学 | Beneficiation method for lead-zinc sulfide ore difficult to treat |
| CN112439551A (en) * | 2020-11-02 | 2021-03-05 | 西部(重庆)地质科技创新研究院有限公司 | Synthesis process of rare earth collecting agent |
| CN113318855A (en) * | 2021-06-02 | 2021-08-31 | 中国矿业大学 | Flotation system and process for improving quality and reducing impurities of high-clay-content low-grade chalcopyrite |
| CN113318855B (en) * | 2021-06-02 | 2022-02-11 | 中国矿业大学 | Flotation system and process for improving quality and reducing impurities of high-clay-content low-grade chalcopyrite |
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| CN107115974B (en) | 2019-03-19 |
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