CN107138284A - A kind of beneficiation method for improving micro-fine particle white tungsten ore floatation indicators - Google Patents
A kind of beneficiation method for improving micro-fine particle white tungsten ore floatation indicators Download PDFInfo
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- CN107138284A CN107138284A CN201710321891.4A CN201710321891A CN107138284A CN 107138284 A CN107138284 A CN 107138284A CN 201710321891 A CN201710321891 A CN 201710321891A CN 107138284 A CN107138284 A CN 107138284A
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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
-
- 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
-
- 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
- B03D2201/06—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
Abstract
The present invention provides a kind of beneficiation method for improving micro-fine particle white tungsten ore floatation indicators, belongs to technical field of beneficiation.This method by powered surfactant formulatory into concentration be its critical micelle concentration solution, generation is stirred with electrical miniature foam in agitator high speed, miniature foam is introduced into micro-fine particle white tungsten ore flotation system, by regulating and controlling ore pulp property, powered miniature foam is set selectively to be attached to valuable mineral surface by electrostatic interaction, strengthen its surface hydrophobic, so as to improve the mineral processing index of micro-fine particle white tungsten ore.The technical barrier that the present invention solves micro-fine particle white tungsten mine disaster effectively to reclaim, to realize low-grade difficult scheelite efficiently using significant.
Description
Technical field
The present invention relates to technical field of beneficiation, a kind of ore dressing side for improving micro-fine particle white tungsten ore 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.
Tungsten resource is the Dominant Mineral Resources of China, and reserves account for the 68% of world's tungsten resource total amount, ranked first in the world.So
And, with the fast development of China's economy, tractable tungsten ore resource (wolframite for being easy to gravity treatment enrichment) is almost depleted.
Form sharp contrast is complicated difficult tungsten resource (particulate silicon of the China for rich reserves with the excessively exploitation of disposable resource
Card lithotype scheelite) development and utilization level it is very low.Because scheelite ore is crisp, easy cross is crushed during comminution, tungsten
The resulting tungsten slurry content in mine accounts for the 8%-16% of total treating capacity, and this part tungsten slurry is in existing technique of preparing condition
Under hardly result in recycling, the tungsten slurry resource that abandons in the mine tailing produced along with tungsten ore dressing main process causes full generation
Boundary there are about 20% tungsten loss in thin mud every year.Therefore, micro-fine particle white tungsten ore flotation new technology is developed, realizes that micro-size fraction is white
The high efficiente callback of tungsten ore, to realize difficult low-grade scheelite efficiently using significant.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of improve micro-fine particle white tungsten ore floatation indicators beneficiation method, with
Micro-fine particle white tungsten mine disaster is solved with the technique of preparing problem of efficient flotation separation.
This method step is as follows：
(1) preparation of powered microvesicle：Powered surfactant is configured to certain density solution and adds high-speed stirred
In bucket, 5-10min is stirred under certain rotating speed, powered miniature foam is prepared；
(2) preparation of ore and ore grinding：It is that -0.074mm accounts for 80%-90% by scheelite stone mill ore deposit to fineness；
(3) regulator sodium carbonate, inhibitor carboxyl chitosan and collecting agent are sequentially added into ore pulp obtained by step (2)
731 oxidized paraffin wax soaps, which are stirred, sizes mixing, wherein, sodium carbonate amount is 1000-1500g/t, and carboxyl chitosan consumption is 500-
800g/t, 731 oxidized paraffin wax soap consumptions are 100-200g/t；
(4) step (3) is stirred to the ore pulp after sizing mixing and carries out roughing, obtain rougher concentration and rougher tailings；
(5) added in the rougher concentration obtained to step (4) carboxyl chitosan carry out five times it is selected, obtain concentrate one, essence
The chats order of choosing returns to upper level operation, wherein, added carboxyl chitosan consumption selected for the first time is 200-300g/t, second
It is that blank is selected that secondary to the 5th time selected, not adding medicine；
(6) oxidized paraffin wax soap of collecting agent 731 is added in the rougher tailings obtained to step (4) to be scanned twice, it is added
731 oxidized paraffin wax soap consumptions are 50-100g/t, and it is 80-100g/t, second that added 731 oxidized paraffin wax soap consumptions are scanned for the first time
It is secondary that to scan added 731 oxidized paraffin wax soap consumptions be 40-50g/t；Scan chats order and return to upper level operation, scan mine tailing progress
Classification, obtains+0.037mm grades and -0.037mm grade two parts, and+0.037mm grades abandon and 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
Powered miniature foam made from step (1), is passed through after miniature foam 2min and is passed through air progress flotation, column flotation mine tailing
For mine tailing two, column flotation concentrate is concentrate two, and the middle gained concentrate one of step (5) and concentrate two are merged into final concentrate, walked
Suddenly gained mine tailing one and mine tailing two merge into true tailings in (6).
Wherein, surfactant powered in step (1) is dodecyl sodium sulfate, lauryl sodium sulfate, dodecane
One kind in base benzene sulfonic acid sodium salt, DTAB, cetyl trimethylammonium bromide.
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 5000-7000 revs/min.
Scheelite is the superfine difficult scheelite of disseminated grain size in step (2).
The volume that powered miniature foam is passed through in step (7) be handled pulp volume 1 to eight/10ths/
One.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
Powered miniature foam is introduced micro-fine particle white tungsten ore flotation system by the inventive method, by regulating and controlling ore pulp property,
Powered miniature foam is selectively attached to valuable mineral surface by electrostatic interaction, enhance its surface hydrophobic,
So as to improve the mineral processing index of micro-fine particle white tungsten ore.
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 micro-fine particle white tungsten ore floatation indicators.
Embodiment 1
It is 9 × 10 that dodecyl sodium sulfate is configured into concentration-3Mol/L solution is added in high-speed stirred bucket, 5000
Rev/min rotating speed under stir 8min, prepare the powered charged microvesicle in surface.Scheelite grinde ore is contained to -0.074mm
Measure as 80%, add 1500g/t sodium carbonate, 500g/t inhibitor carboxyl chitosan, 120g/t 731 oxidized paraffin wax soaps and adjusted
Roughing flotation is carried out after slurry, rougher concentration and rougher tailings is obtained.Inhibitor carboxyl chitosan is added in rougher concentration to carry out 5 times
It is selected, obtain concentrate 1, selected 1 inhibitor consumption 300g/t, latter 4 times are selected selected for blank, and selected chats order is returned.To
The oxidized paraffin wax soap of 80g/t collecting agents 731 is added in rougher tailings scan for the first time, is scanned mine tailing and is added 40g/t collecting agents
731 oxidized paraffin wax soaps are scanned for the second time, are scanned mine tailing and are classified, and obtain+0.037mm and -0.037mm two parts ,+
0.037mm grades abandon and are used as mine tailing 1.- 0.037mm is transferred in small-sized flotation column, it is logical from flotation column bottom using peristaltic pump
Enter obtained powered miniature foam, be passed through after miniature foam 2min and be passed through air progress flotation, column flotation mine tailing is tail
Ore deposit 2, 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 most finality
Ore deposit.
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 6400 revs/min of rotating speed, the powered charged microvesicle in surface is prepared.By scheelite grinde ore to-
0.074mm contents are 90%, add 1200g/t sodium carbonate, 800g/t inhibitor carboxyl chitosan, 180g/t 731 oxidation stones
Wax soap is sized mixing, and roughing flotation is carried out afterwards, rougher concentration and rougher tailings is obtained.Inhibitor carboxylation shell is added in rougher concentration
Glycan carry out 5 times it is selected, obtain concentrate 1, for the first time selected inhibitor carboxyl chitosan consumption 200g/t, latter four times are selected for sky
Bai Jingxuan, selected chats order is returned.The oxidized paraffin wax soap of 100g/t collecting agents 731 is added into rougher tailings sweep for the first time
Choosing, scans the oxidized paraffin wax soap of mine tailing addition 50g/t collecting agents 731 and is scanned for the second time, scan mine tailing and be classified, obtain+
0.037mm and -0.037mm two parts ,+0.037mm grades abandon and are used as mine tailing 1.- 0.037mm is transferred in small-sized flotation column,
Obtained powered miniature foam is passed through from flotation column bottom using peristaltic pump, is passed through after miniature foam 2min and is passed through air progress
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,
Mine tailing 1 and mine tailing are 2-in-1 and for 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 micro-fine particle white tungsten ore floatation indicators, it is characterised in that：Comprise the following steps：
(1) preparation of powered microvesicle：Powered surfactant is configured into certain density solution to add in high-speed stirred bucket,
5-10min is stirred under certain rotating speed, powered miniature foam is prepared；
(2) preparation of ore and ore grinding：It is that -0.074mm accounts for 80%-90% by scheelite stone mill ore deposit to fineness；
(3) regulator sodium carbonate, inhibitor carboxyl chitosan and the oxygen of collecting agent 731 are sequentially added into ore pulp obtained by step (2)
Fossil waxes soap, which is stirred, sizes mixing, wherein, sodium carbonate amount is 1000-1500g/t, and carboxyl chitosan consumption is 500-800g/
T, 731 oxidized paraffin wax soap consumptions are 100-200g/t；
(4) step (3) is stirred to the ore pulp after sizing mixing and carries out roughing, obtain rougher concentration and rougher tailings；
(5) added in the rougher concentration obtained to step (4) carboxyl chitosan carry out five times it is selected, obtain concentrate one, it is selected
Chats order returns to upper level operation, wherein, added carboxyl chitosan consumption selected for the first time is 200-300g/t, is arrived for the second time
It is that blank is selected that 5th time selected, not adding medicine；
(6) oxidized paraffin wax soap of collecting agent 731 is added in the rougher tailings obtained to step (4) to be scanned twice, sweep for the first time
The added 731 oxidized paraffin wax soap consumptions of choosing are 80-100g/t, and it is 40-50g/t that added 731 oxidized paraffin wax soap consumptions are scanned for the second time；
Scan chats order and return to upper level operation, scan mine tailing and be classified, obtain+0.037mm grades and -0.037mm grades two
Part ,+0.037mm grades abandon and 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) air is passed through after powered miniature foam, 2min made from and carries out flotation, column flotation mine tailing is mine tailing two, flotation column
Flotation concentrate is concentrate two, and the middle gained concentrate one of step (5) and concentrate two merge into gained mine tailing in final concentrate, step (6)
One and mine tailing two merge into true tailings.
2. the beneficiation method according to claim 1 for improving micro-fine particle white tungsten ore floatation indicators, it is characterised in that：The step
Suddenly surfactant powered in (1) is dodecyl sodium sulfate, lauryl sodium sulfate, neopelex, 12
One kind in alkyl trimethyl ammonium bromide, cetyl trimethylammonium bromide.
3. the beneficiation method according to claim 1 for improving micro-fine particle white tungsten ore floatation indicators, it is characterised in that：The step
Suddenly the concentration for the powered surfactant solution prepared in (1) is dense for the critical micell of selected powered surfactant
Degree.
4. the beneficiation method according to claim 1 for improving micro-fine particle white tungsten ore floatation indicators, it is characterised in that：The step
Suddenly the mixing speed of (1) high speed agitator is 5000-7000 revs/min.
5. the beneficiation method according to claim 1 for improving micro-fine particle white tungsten ore floatation indicators, it is characterised in that：The step
Suddenly the volume that powered miniature foam is passed through in (7) is 1st/1 to eight/10ths of handled pulp volume.
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Cited By (4)
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| CN107837968A (en) * | 2017-11-17 | 2018-03-27 | 北京有色金属研究总院 | A kind of method from Tungsten smelting slag recovery tungsten |
| CN108543631A (en) * | 2018-05-10 | 2018-09-18 | 江西理工大学 | A kind of beneficiation method of skarn type scheelite |
| CN112295723A (en) * | 2020-09-09 | 2021-02-02 | 江西浒坑钨业有限公司 | Fine particle grade tungsten recovery beneficiation system and beneficiation method thereof |
| CN113477409A (en) * | 2021-07-21 | 2021-10-08 | 东北大学 | Calcium-containing gangue combined inhibitor for scheelite flotation and preparation and application methods thereof |
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Effective date of registration: 20191105 Address after: 471500 Henan city of Luoyang province Luanchuan County East New District mountain thrush river north of Iraq Patentee after: Luoyang Luanchuan Molybdenum Industry Group Co., Ltd. Address before: 341000, Jiangxi University of Science and Technology, 86 Hongqi Avenue, Jiangxi, Ganzhou Patentee before: Jiangxi University of Technology |
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