CN107138284B - A kind of beneficiation method improving micro-fine particle white tungsten ore floatation indicators - Google Patents
A kind of beneficiation method improving micro-fine particle white tungsten ore floatation indicators Download PDFInfo
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- CN107138284B CN107138284B CN201710321891.4A CN201710321891A CN107138284B CN 107138284 B CN107138284 B CN 107138284B CN 201710321891 A CN201710321891 A CN 201710321891A CN 107138284 B CN107138284 B CN 107138284B
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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
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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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
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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.The surfactant formulatory of electrification is the solution of its critical micelle concentration at concentration by this method, it generates in the stirring of agitator high speed with electrical miniature foam, miniature foam is introduced into micro-fine particle white tungsten ore flotation system, by regulating and controlling ore pulp property, the miniature foam of electrification is set selectively to be attached to valuable mineral surface by electrostatic interaction, strengthen its surface hydrophobic, to improve the mineral processing index of micro-fine particle white tungsten ore.The present invention solves micro-fine particle white tungsten mine disaster with the technical problem effectively recycled, is of great significance to efficient utilize for realizing low-grade difficult scheelite.
Description
Technical field
The present invention relates to technical field of beneficiation, particularly relate to a kind of ore dressing side for improving micro-fine particle white tungsten ore floatation indicators
Method.
Background technique
With the mankind's continually developing and consuming to mineral resources, rich ore and tractable ore resource are reduced increasingly, such as
What economical and efficient using low-grade, disseminated grain size is thin, complicated composition ores have 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 recycle 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, the energy barrier for being difficult to overcome in collision process between ore particle and bubble can not
It adheres on bubble.In order to improve the flotation recovery rate of micro-size fraction mineral, ore dressing worker is had conducted extensive research, and discovery increases
The apparent partial size 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-grained minerals flotation recovery rate.Based on the above understanding, ore dressing worker proposes Hydrophobic Agglomerate Separation, compound
The technologies such as agglomerate sorting, selective flocculation sorting, nano bubble flotation, electrolytic floatage.Although some fine particle mineral flotations return
Receipts technology is applied in individual mines, but the problems such as due to the deficiency or complicated ore properties of these technologies itself, microfine
The flotation recovery problem of grade mineral still without being solved very well.
Tungsten resource is the Dominant Mineral Resources in China, and reserves account for the 68% of world's tungsten resource total amount, rank first in the world.So
And with the rapid development of our country's economy, tractable tungsten ore resource (wolframite for being easy to gravity treatment enrichment) is almost depleted.
Excessively developed with easy to handle resource form sharp contrast be China for rich reserves difficult tungsten resource (the particulate silicon of complexity
Card lithotype scheelite) development and utilization level it is very low.Since scheelite ore is crisp, crushing, tungsten were easy during comminution
The resulting tungsten slurry content in mine accounts for about the 8%-16% of total treating capacity, this part tungsten slurry is in existing technique of preparing condition
Under hardly result in recycling, the tungsten slurry resource that abandons in the tailing generated along with tungsten ore dressing main process causes full generation
There are about 20% tungsten loss in thin mud every year on boundary.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 is of great significance to efficient utilize for realizing difficult low-grade scheelite.
Summary 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.
The method steps are as follows:
(1) it charges the preparation of microvesicle: the surfactant of electrification being configured to certain density solution, high-speed stirred is added
In bucket, 5-10min is stirred under certain revolving speed, the miniature foam of electrification is prepared；
(2) preparation of ore and ore grinding: being that -0.074mm accounts for 80%-90% by scheelite stone mill mine 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 1000-1500g/t, carboxyl chitosan dosage are 500-
800g/t, 731 oxidized paraffin wax soap dosages are 100-200g/t；
(4) ore pulp after step (3) stirring being sized mixing carries out roughing, obtains rougher concentration and rougher tailings；
(5) in the rougher concentration obtained to step (4) be added carboxyl chitosan carry out five times it is selected, obtain concentrate one, essence
The chats sequence of choosing returns to upper level operation, wherein and added carboxyl chitosan dosage 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) 731 oxidized paraffin wax soap of collecting agent is added in the rougher tailings obtained to step (4) to be scanned twice, it is added
731 oxidized paraffin wax soap dosages are 50-100g/t, and scanning added 731 oxidized paraffin wax soap dosages for the first time is 80-100g/t, second
It is secondary that scan added 731 oxidized paraffin wax soap dosages be 40-50g/t；It scans chats sequence and returns to upper level operation, scan tailing progress
Classification obtains+0.037mm grade and -0.037mm grade two parts, and+0.037mm grade, which abandons, is used as tailing one；
(7) -0.037mm the grade that step (6) obtains is transferred in flotation column, is passed through using peristaltic pump from flotation column bottom
Step (1) the miniature foam obtained charged is passed through air progress flotation, column flotation tailing after being passed through miniature foam 2min
For tailing two, column flotation concentrate is concentrate two, and gained concentrate one and concentrate two merge into final concentrate in step (5), walk
Suddenly gained tailing one and tailing two merge into true tailings in (6).
Wherein, the surfactant charged in step (1) is dodecyl sodium sulfate, lauryl sodium sulfate, dodecane
One of base benzene sulfonic acid sodium salt, dodecyl trimethyl ammonium bromide, cetyl trimethylammonium bromide.
The concentration of the surfactant solution for the electrification prepared in step (1) is the surfactant of selected electrification
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).
Be passed through in step (7) the miniature foam of electrification volume be handled pulp volume 1 to eight/10ths/
One.
The advantageous effects of the above technical solutions of the present invention are as follows:
The miniature foam of electrification is introduced micro-fine particle white tungsten ore flotation system by the method for the present invention, by regulating and controlling ore pulp property,
So that the miniature foam of electrification is selectively attached to valuable mineral surface by electrostatic interaction, enhance its surface hydrophobic,
To improve the mineral processing index of micro-fine particle white tungsten ore.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution 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, which is configured to concentration,-3The solution of mol/L is added in high-speed stirred bucket, 5000
Rev/min revolving speed under stir 8min, be prepared surface electrification charged microvesicle.Scheelite grinde ore is contained to -0.074mm
Amount be 80%, be added 1500g/t sodium carbonate, 500g/t inhibitor carboxyl chitosan, 120g/t 731 oxidized paraffin wax soaps adjusted
Roughing flotation is carried out after slurry, obtains rougher concentration and rougher tailings.Inhibitor carboxyl chitosan is added in rougher concentration to carry out 5 times
It is selected, concentrate 1 is obtained, selected 1 inhibitor dosage 300g/t, latter 4 times are selected selected for blank, and selected chats sequence returns.To
731 oxidized paraffin wax soap of 80g/t collecting agent is added in rougher tailings scan for the first time, scans tailing and 40g/t collecting agent is added
731 oxidized paraffin wax soaps are scanned for the second time, are scanned tailing and are classified, and+0.037mm and -0.037mm two parts are obtained ,+
0.037mm grade, which abandons, is used as tailing 1.- 0.037mm is transferred in small-sized flotation column, it is logical from flotation column bottom using peristaltic pump
Enter the miniature foam obtained charged, is passed through air progress flotation after being passed through miniature foam 2min, column flotation tailing is tail
Mine 2, column flotation concentrate are concentrate 2.Concentrate 1 and concentrate 2 merge into final concentrate, and tailing 1 and tailing 2 merge into most finality
Mine.
Beneficiation test result is as shown in the table.
Float test index (wt%)
Embodiment 2
It is 8.1 × 10 that lauryl sodium sulfate, which is configured to concentration,-3The solution of mol/L is added in high-speed stirred bucket,
5min is stirred under 6400 revs/min of revolving speed, the charged microvesicle of surface electrification is prepared.By scheelite grinde ore to-
0.074mm content is 90%, and the 731 oxidation stones of 1200g/t sodium carbonate, 800g/t inhibitor carboxyl chitosan, 180g/t are added
Wax soap is sized mixing, and is carried out roughing flotation afterwards, is obtained rougher concentration and rougher tailings.Inhibitor carboxylation shell is added in rougher concentration
Glycan progress 5 times selected, obtains concentrate 1, for the first time selected inhibitor carboxyl chitosan dosage 200g/t, and latter four times selected for sky
Bai Jingxuan, selected chats sequence return.731 oxidized paraffin wax soap of 100g/t collecting agent is added into rougher tailings sweep for the first time
Choosing is scanned tailing addition 731 oxidized paraffin wax soap of 50g/t collecting agent and is scanned for the second time, scans tailing and be classified, obtain+
0.037mm and -0.037mm two parts ,+0.037mm grade, which abandons, is used as tailing 1.- 0.037mm is transferred in small-sized flotation column,
It is passed through the miniature foam obtained charged from flotation column bottom using peristaltic pump, is passed through air progress after being passed through miniature foam 2min
Flotation, column flotation tailing are tailing 2, and column flotation concentrate is concentrate 2.Concentrate 1 and concentrate 2 merge into final concentrate,
Tailing 1 and tailing 2 merge into true tailings.
Beneficiation test result is as shown in the table.
Float test index (wt%)
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of beneficiation method for improving micro-fine particle white tungsten ore floatation indicators, characterized by the following steps:
(1) it charges the preparation of microvesicle: the surfactant of electrification being configured to certain density solution and is added in high-speed stirred bucket,
5-10min is stirred under certain revolving speed, the miniature foam of electrification is prepared；
(2) preparation of ore and ore grinding: being that -0.074mm accounts for 80%-90% by scheelite stone mill mine to fineness；
(3) 731 oxygen of regulator sodium carbonate, inhibitor carboxyl chitosan and collecting agent is sequentially added into ore pulp obtained by step (2)
Fossil waxes soap, which is stirred, sizes mixing, wherein sodium carbonate amount 1000-1500g/t, carboxyl chitosan dosage are 500-800g/
T, 731 oxidized paraffin wax soap dosages are 100-200g/t；
(4) ore pulp after step (3) stirring being sized mixing carries out roughing, obtains rougher concentration and rougher tailings；
(5) in the rougher concentration obtained to step (4) be added carboxyl chitosan carry out five times it is selected, obtain concentrate one, it is selected
Chats sequence returns to upper level operation, wherein added carboxyl chitosan dosage 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) 731 oxidized paraffin wax soap of collecting agent is added in the rougher tailings obtained to step (4) to be scanned twice, sweeps for the first time
Selecting added 731 oxidized paraffin wax soap dosages is 80-100g/t, and scanning added 731 oxidized paraffin wax soap dosages for the second time is 40-50g/t；
It scans chats sequence and returns to upper level operation, scan tailing and be classified, obtain+0.037mm grade and -0.037mm grade two
Part ,+0.037mm grade, which abandons, is used as tailing one；
(7) -0.037mm the grade that step (6) obtains is transferred in flotation column, is passed through step from flotation column bottom using peristaltic pump
(1) the miniature foam charged obtained is passed through air after 2min and carries out flotation, and column flotation tailing is tailing two, flotation column
Flotation concentrate is concentrate two, and gained concentrate one and concentrate two merge into final concentrate in step (5), gained tailing in step (6)
One and tailing two merge into true tailings；
The surfactant charged in the step (1) is dodecyl sodium sulfate, lauryl sodium sulfate, detergent alkylate sulphur
One of sour sodium, dodecyl trimethyl ammonium bromide, cetyl trimethylammonium bromide；
The concentration of the surfactant solution for the electrification prepared in the step (1) is the surfactant of selected electrification
Critical micelle concentration.
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 the mixing speed of (1) high speed agitator is 5000-7000 revs/min.
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 volume that the miniature foam of electrification is passed through in (7) is 1st/1 to eight/10ths of handled pulp volume.
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| CN107837968B (en) * | 2017-11-17 | 2020-05-29 | 北京有色金属研究总院 | Method for recovering tungsten from tungsten smelting slag |
| 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 |
| CN113477409B (en) * | 2021-07-21 | 2022-09-27 | 东北大学 | Calcium-containing gangue combined inhibitor for scheelite flotation and preparation and application methods thereof |
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| CN102658241A (en) * | 2012-04-23 | 2012-09-12 | 洛阳栾川钼业集团股份有限公司 | Flotation process adopting flotation column to regrading scheelite instead of flotation machine |
| CN203355889U (en) * | 2013-05-22 | 2013-12-25 | 汪德进 | Improved floatation separation device |
| CN104801428B (en) * | 2015-05-15 | 2017-03-15 | 中国矿业大学 | Cold conditions oil vacuole manufacture method and flotation unit for low order coal flotation |
| CN105327783B (en) * | 2015-11-17 | 2018-02-09 | 紫金矿业集团股份有限公司 | Low-grade scheelite ramified flotation method |
| CN106076600B (en) * | 2016-06-15 | 2018-06-01 | 江西理工大学 | A kind of beneficiation method of low-grade difficult scheelite |
| CN105855065B (en) * | 2016-06-20 | 2018-03-09 | 中国矿业大学 | A kind of oxidized coal slime method for separating based on the pretreatment of nano bubble ore pulp |
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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 |