CN109078761A - A method of utilizing the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening - Google Patents
A method of utilizing the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening Download PDFInfo
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- CN109078761A CN109078761A CN201811131256.0A CN201811131256A CN109078761A CN 109078761 A CN109078761 A CN 109078761A CN 201811131256 A CN201811131256 A CN 201811131256A CN 109078761 A CN109078761 A CN 109078761A
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- nickel sulfide
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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
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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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Abstract
The present invention provides a kind of method using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, belongs to technical field of beneficiation.This method is levigate by the thinner nickel sulfide ore of disseminated grain size, and conventional dose is first added and carries out flotation, and the flotation of ferroso-ferric oxide poly-dopamine composite particles is then added in tailing and is difficult to the microfine nickel sulfide mineral recycled under the conditions of conventional flotation.The present invention strengthens the surface hydrophobic of microfine nickel sulfide mineral using ferroso-ferric oxide poly-dopamine composite particles, realizes the intensified Daqu of microfine nickel sulfide ore, improves the recovery rate in ore-dressing of the difficult nickel minerals of microfine.The present invention solves the problems, such as microfine nickel sulfide mineral since granularity is small, the surface caused rate of recovery easy to oxidize is difficult to improve, improve the mineral processing index of the difficult nickel sulfide ore of microfine, ferroso-ferric oxide poly-dopamine composite particles can be recycled with magnetic separator simultaneously, and cost is relatively low.
Description
Technical field
The present invention relates to technical field of beneficiation, particularly relate to a kind of utilization difficult nickel sulfide ore of magnetic hydrophobic particle strengthening
The method of flotation.
Background technique
Nickel is important non-ferrous raw material, referred to as " work needed for China's hi-tech development and the development of the national economy
Industry vitamin ".It is increasing to the demand of nickel with the fast development of Chinese national economy, and nickel resources it is increasingly poor,
Carefully, hydridization is affected to the high efficiente callback of nickel resources.Therefore, microfine nickel sulfide ore flotation new technology is developed, is realized fine
The high efficiente callback of grade nickel sulfide ore is of great significance to efficient utilize for realizing nickel resources.
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.
Summary of the invention
The present invention is to solve microfine nickel sulfide ore since granularity is small, the surface caused rate of recovery easy to oxidize is difficult to improve
Technical problem, a kind of method using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening is provided.
It is as follows that the method comprising the steps of:
(1) ore grinding: the thinner nickel sulfide ores of disseminated grain size are milled down to -0.074mm content and account for 80%-90%, are obtained
Ore grinding ore pulp；
(2) sodium hexametaphosphate dispersant, inhibitor twelve month yam natural gum, collecting are added in the ore grinding ore pulp obtained to step (1)
Agent butyl xanthate, foaming agent MIBC stirring size mixing and carry out roughing, obtain rougher concentration and rougher tailings；
(3) addition collecting agent butyl xanthate, foaming agent MIBC are scanned twice in the rougher tailings obtained to step (2),
It obtains scanning chats and scans tailing, scan chats sequence and return to upper level operation；
(4) sodium hexametaphosphate dispersant is added into rougher concentration obtained by step (2), inhibitor twelve month yam natural gum carries out three times
It is selected, concentrate 1 is obtained, selected chats sequence returns to upper level operation；
(5) what is obtained to step (3) scans addition magnetic hydrophobic particle in tailing, and 10-20g/ is added after stirring 5-10min
T foaming agent MIBC carries out flotation, obtains concentrate 2 and true tailings；Gained concentrate 1 in concentrate 2 and step (4) is merged into finally
Concentrate, magnetic hydrophobic particle are recycled with magnetic separator.
Sodium hexametaphosphate dispersant dosage is 300-500g/t in step (2), and inhibitor twelve month yam natural gum dosage is 200-
300g/t, collecting agent butyl xanthate dosage are 80-100g/t, and foaming agent MIBC dosage is 10-20g/t.
40-50g/t butyl xanthate, 10-20g/t foaming agent MIBC is added in first time roughing in step (3)；It scans and adds for the second time
Enter 20-30g/t butyl xanthate, 10-20g/t foaming agent MIBC.
Added calgon dosage selected for the first time is 200-300g/t in step (4), and twelve month yam natural gum dosage is 100-
150g/t；Second of selected added calgon dosage is 100-150g/t, and twelve month yam natural gum dosage is 50-80g/t；For the third time
Selected not adding medicine.
Magnetic hydrophobic particle is with magnetic ferroso-ferric oxide poly-dopamine composite particles, wherein poly- more in step (5)
The weight fraction that bar amine accounts for entire particle is 50%-70%.
Magnetic hydrophobic amount of particles is the 3-10% for scanning tailing mine amount in step (5).
Magnetic hydrophobic grain graininess is 5-20 μm in step (5).
Nickel grade is greater than 6% in gained final concentrate in step (5), and nickel recovery is greater than 80%.
The advantageous effects of the above technical solutions of the present invention are as follows:
The present invention is difficult to recycle using ferroso-ferric oxide poly-dopamine composite particles flotation under the conditions of conventional flotation for the first time
Microfine nickel sulfide mineral, strengthen microfine nickel sulfide mineral surface hydrophobic, realize microfine nickel sulfide mineral
Intensified Daqu.It can be recycled simultaneously with magnetic separator using ferroso-ferric oxide poly-dopamine composite particles, cost is relatively low, is a kind of steady
Fixed, the efficient difficult nickel sulfide ore beneficiation method of microfine.
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 is for existing microfine nickel sulfide ore since granularity is small, surface caused hydrophobicity easy to oxidize is difficult to
The technical problem of raising provides a kind of method using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening.
This method specific steps are as follows:
(1) ore grinding: the thinner nickel sulfide ores of disseminated grain size are milled down to -0.074mm content and account for 80%-90%, are obtained
Ore grinding ore pulp；
(2) sodium hexametaphosphate dispersant, inhibitor twelve month yam natural gum, collecting are added in the ore grinding ore pulp obtained to step (1)
Agent butyl xanthate, foaming agent MIBC stirring size mixing and carry out roughing, obtain rougher concentration and rougher tailings；
(3) addition collecting agent butyl xanthate, foaming agent MIBC are scanned twice in the rougher tailings obtained to step (2),
It obtains scanning chats and scans tailing, scan chats sequence and return to upper level operation；
(4) sodium hexametaphosphate dispersant is added into rougher concentration obtained by step (2), inhibitor twelve month yam natural gum carries out three times
It is selected, concentrate 1 is obtained, selected chats sequence returns to upper level operation；
(5) what is obtained to step (3) scans addition magnetic hydrophobic particle in tailing, and 10-20g/ is added after stirring 5-10min
T foaming agent MIBC carries out flotation, obtains concentrate 2 and true tailings；Gained concentrate 1 in concentrate 2 and step (4) is merged into finally
Concentrate, magnetic hydrophobic particle are recycled with magnetic separator.
It is explained combined with specific embodiments below.
Embodiment 1
Certain nickel sulfide ore is milled down to -0.074mm and accounts for 80%, into ore pulp be added 400g/t sodium hexametaphosphate dispersant,
300g/t inhibitor twelve month yam natural gum, 100g/t collecting agent butyl xanthate and 20g/t foaming agent MIBC are stirred and size mixing and carry out sulphur
The roughing for changing nickel mineral, obtains rougher concentration and rougher tailings.Collecting agent butyl xanthate and blistering are added into gained rougher tailings
Agent MIBC is scanned to obtain twice to scan tailing, is scanned chats sequence and is returned to upper level operation, scans 50g/t is added for the first time
Collecting agent butyl xanthate, 20g/t foaming agent MIBC are scanned 30g/t collecting agent butyl xanthate, 10g/t foaming agent MIBC is added for the second time.
Sodium hexametaphosphate dispersant, inhibitor twelve month yam natural gum progress triple cleaning are added in rougher concentration, obtains concentrate 1, it is selected
Chats sequence returns to upper level operation, wherein added calgon dosage selected for the first time is 200g/t, twelve month yam natural gum dosage
For 150g/t, second of selected added calgon dosage is 100g/t, and twelve month yam natural gum dosage is 80g/t.It is selected for the third time
Not adding medicine.Into rougher tailings, addition dosage is that the ferroso-ferric oxide poly-dopamine that the average particle size of mine amount 3% is 10 μm is multiple
10g/t foaming agent MIBC progress flotation is added after closing nano particle stirring 5min, obtains concentrate 2 and true tailings；By 1 He of concentrate
Concentrate 2 merges into final concentrate, and magnetic hydrophobic particle is recycled with magnetic separator.
1 embodiment of table, 1 float test index (wt%)
| Name of product | Yield | Nickel grade | Nickel recovery |
| Concentrate | 6.82 | 7.18 | 81.41 |
| Tailing | 93.18 | 0.12 | 18.59 |
| Raw ore | 100 | 0.60 | 100 |
Embodiment 2
Certain nickel sulfide ore is milled down to -0.074mm and accounts for 85%, into ore pulp be added 500g/t sodium hexametaphosphate dispersant,
200g/t inhibitor twelve month yam natural gum, 80g/t collecting agent butyl xanthate and 20g/t foaming agent MIBC are stirred and size mixing and vulcanized
The roughing of nickel mineral, obtains rougher concentration and rougher tailings.Collecting agent butyl xanthate and foaming agent are added into gained rougher tailings
MIBC is scanned to obtain twice to scan tailing, is scanned chats sequence and is returned to upper level operation, is scanned addition 40g/t for the first time and is caught
Agent butyl xanthate, 20g/t foaming agent are received, scans 20g/t collecting agent butyl xanthate, 10g/t foaming agent MIBC is added for the second time.In roughing
It is included in sodium hexametaphosphate dispersant, inhibitor twelve month yam natural gum progress triple cleaning in concentrate, obtains concentrate 1, selected chats is suitable
Sequence returns to upper level operation, wherein added calgon dosage selected for the first time is 250g/t, and twelve month yam natural gum dosage is
100g/t, second of selected added calgon dosage is 100g/t, and twelve month yam natural gum dosage is 50g/t.It is selected for the third time not
Adding medicine.Into rougher tailings, addition dosage is that the ferroso-ferric oxide poly-dopamine that the average particle size of mine amount 5% is 10 μm is compound
10g/t foaming agent MIBC progress flotation is added after stirring 10min in nano particle, obtains concentrate 2 and true tailings；By 1 He of concentrate
Concentrate 2 merges into final concentrate, and magnetic hydrophobic particle is recycled with magnetic separator.
2 embodiment of table, 2 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 (8)
1. a kind of method using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, it is characterised in that: such as including step
Under:
(1) ore grinding: nickel sulfide ores are milled down to -0.074mm content and account for 80%-90%, obtain ore grinding ore pulp；
(2) sodium hexametaphosphate dispersant, inhibitor twelve month yam natural gum, collecting agent fourth are added in the ore grinding ore pulp obtained to step (1)
Xanthate, foaming agent MIBC stirring size mixing and carry out roughing, obtain rougher concentration and rougher tailings；
(3) addition collecting agent butyl xanthate, foaming agent MIBC are scanned twice in the rougher tailings obtained to step (2), are obtained
It scans chats and scans tailing, scan chats sequence and return to upper level operation；
(4) sodium hexametaphosphate dispersant is added into rougher concentration obtained by step (2), inhibitor twelve month yam natural gum carries out essence three times
Choosing, obtains concentrate 1, and selected chats sequence returns to upper level operation；
(5) what is obtained to step (3) scans addition magnetic hydrophobic particle in tailing, is added 10-20g/t after stirring 5-10min
Infusion MIBC carries out flotation, obtains concentrate 2 and true tailings；Gained concentrate 1 in concentrate 2 and step (4) is merged into final essence
Mine, magnetic hydrophobic particle are recycled with magnetic separator.
2. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: sodium hexametaphosphate dispersant dosage is 300-500g/t in the step (2), and inhibitor twelve month yam natural gum dosage is 200-
300g/t, collecting agent butyl xanthate dosage are 80-100g/t, and foaming agent MIBC dosage is 10-20g/t.
3. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: 40-50g/t butyl xanthate, 10-20g/t foaming agent MIBC is added in first time roughing in the step (3)；It scans for the second time
20-30g/t butyl xanthate, 10-20g/t foaming agent MIBC is added.
4. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: added calgon dosage selected for the first time is 200-300g/t in the step (4), and twelve month yam natural gum dosage is 100-
150g/t；Second of selected added calgon dosage is 100-150g/t, and twelve month yam natural gum dosage is 50-80g/t；For the third time
Selected not adding medicine.
5. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: magnetic hydrophobic particle is with magnetic ferroso-ferric oxide poly-dopamine composite particles, wherein poly- more in the step (5)
The weight fraction that bar amine accounts for entire particle is 50%-70%.
6. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: magnetic hydrophobic amount of particles is the 3-10% for scanning tailing mine amount in the step (5).
7. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: magnetic hydrophobic grain graininess is 5-20 μm in the step (5).
8. the method according to claim 1 using the difficult nickel sulfide ore flotation of magnetic hydrophobic particle strengthening, feature
Be: nickel grade is greater than 6% in gained final concentrate in the step (5), and nickel recovery is greater than 80%.
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| CN201811131256.0A CN109078761B (en) | 2018-09-27 | 2018-09-27 | Method for reinforcing flotation of refractory nickel sulfide ore by using magnetic hydrophobic particles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216020A (en) * | 2019-04-23 | 2019-09-10 | 中南大学 | A kind of charged magnetic hydrophobic material and preparation method thereof and the application in fine-particle minerals separation |
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Cited By (2)
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| CN110216020A (en) * | 2019-04-23 | 2019-09-10 | 中南大学 | A kind of charged magnetic hydrophobic material and preparation method thereof and the application in fine-particle minerals separation |
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