CN106694235A - Nickel polymetallic ore separation technology - Google Patents
Nickel polymetallic ore separation technology Download PDFInfo
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- CN106694235A CN106694235A CN201611194968.8A CN201611194968A CN106694235A CN 106694235 A CN106694235 A CN 106694235A CN 201611194968 A CN201611194968 A CN 201611194968A CN 106694235 A CN106694235 A CN 106694235A
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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
- B03D1/008—Organic compounds containing oxygen
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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
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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
-
- 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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Abstract
A nickel polymetallic ore separation technology includes the steps of crushing and screening raw ore with the granularity ranging from 300 mm to 500 mm so as to obtain fine ore with the granularity ranging from 10 mm to 15 mm; grinding the fine ore with the granularity ranging from 10 mm to 15 mm prior to classification so as to obtain ore pulp with 70% of -200-mesh ore; adding citric acid into the ore pulp with 70% of -200-mesh ore, adding CMC, composite xanthate and No.2 oil sequentially, stirring uniformly, performing rougher flotation, concentrating twice to obtain final concentrate, and scavenging for three times so as to obtain final tailings. The nickel polymetallic ore separation technology has the advantages of less operation, high recovery yield, high product indexes, less chemical consumption and higher economic benefit.
Description
Technical field
The invention belongs to ore-dressing technique, specially a kind of nickel ore-dressing of polymetallic ore technique.
Background technology
Nickel is the important non-ferrous raw material needed for China's hi-tech development and the development of the national economy, is referred to as " work
Industry vitamin ".With the fast development of Chinese national economy, the demand to nickel is increasing, and nickel resources it is increasingly poor,
Carefully, hydridization.The low-grade intractable copper nickel sulfide mineral resource of utilization of economical and efficient is to realize that nickel resources are self-supporting, ensure state of China
People's sustainable economic development and the important channel of national security.
Present nickel ore-dressing of polymetallic ore carries out flotation using single xanthate mostly, and flotation effect is not good, floatation process
Middle to be suppressed using single inhibitor, inhibition is bad, and the content of MgO is high in concentrate, is brought to production very big
Inconvenience.
The content of the invention
It is an object of the invention to provide a kind of nickel ore-dressing of polymetallic ore technique, the deficiency in background technology is solved.
The present invention is realized using following technical scheme：
A kind of nickel ore-dressing of polymetallic ore technique, comprises the following steps：
The first step：By granularity for the raw ore of 300-500 ㎜ passes through crushing and screening, the fine ore that granularity is 10-15 ㎜ is obtained；
Second step：By granularity for the fine ore of 10-15 ㎜ passes through grind grading, it is the ore pulp that -200 mesh account for 70% to obtain ore grain size；
3rd step：It is that -200 mesh account for citric acid is added in 70% ore pulp to ore grain size, the consumption of citric acid is dry ore deposit amount per ton
1400 ~ 1600g, the action time 3min of citric acid are added, CMC is subsequently adding, the consumption of CMC adds 170 for dry ore deposit amount per ton ~
The action time 3min of 180g, CMC；Multiplex xanthate and No. 2 oil are subsequently adding, the consumption of multiplex xanthate is dry ore deposit amount addition per ton
55 ~ 65g, No. 2 consumptions of oil add 40 ~ 45g, multiplex xanthate and No. 2 action time 2min of oil for dry ore deposit amount per ton, and stirring is equal
Enter roughing flotation after even, the multiplex xanthate is 1 by butyl xanthate and isopropyl xanthate in mass ratio:1 mixes；It is described
CMC is carboxymethylcellulose calcium, and No. 2 oil is terpenic oil；
4th step：Concentrate after roughing flotation enters into selected flotation for the first time, and the mine tailing after roughing flotation is entered into for the first time
Flotation is scanned, CMC is added at selected flotation for the first time, the consumption of CMC is 35 ~ 45g of dry ore deposit amount addition per ton, the effect of CMC
Time 3min；The consumption of addition CMC, CMC at flotation is scanned for dry ore deposit amount per ton adds 35 ~ 45g, the effect of CMC in first time
Time 3min；It is subsequently adding multiplex xanthate and No. 2 oil, the consumption of multiplex xanthate adds 30 ~ 35g for dry ore deposit amount per ton, No. 2 oil
Consumption adds 15 ~ 20g, multiplex xanthate and No. 2 action time 2min of oil for dry ore deposit amount per ton；
5th step：The concentrate scanned after flotation for the first time returns to roughing flotation, the mine tailing after flotation is scanned for the first time and is entered into
Flotation being scanned for the second time, addition multiplex xanthate at flotation being scanned for the second time, the consumption of multiplex xanthate is dry ore deposit amount addition per ton
20 ~ 25g, the action time 2min of multiplex xanthate, the concentrate return that flotation is scanned for the second time scan flotation for the first time, sweep for the second time
Select the mine tailing of flotation to enter into third time and scan flotation, addition multiplex xanthate, the use of multiplex xanthate at flotation are scanned in third time
It is that dry ore deposit amount per ton adds 10 ~ 15g, the action time 2min of multiplex xanthate to measure, and the concentrate that flotation is scanned for the third time returns to the
It is secondary to scan flotation, the mine tailing as true tailings of flotation is scanned for the third time；
6th step：The concentrate after selected flotation enters into second selected flotation for the first time, for the first time the mine tailing after selected flotation
Roughing flotation is returned to, the mine tailing after second selected flotation returns to selected flotation for the first time, after second selected flotation
Concentrate is final concentrate.
In the present invention, nickel grade is that 0.70-0.95%, copper grade are that 0.10-0.29%, cobalt grade are in the raw ore
0.020-0.035%。
In the present invention, nickel grade is 7.80-8.59% in the final concentrate, and nickel recovery is 77.00-82.99%, copper product
Position is 1.40-1. 89%, and copper recovery is the flotation concentrate of 71.00-78.99%.
In the present invention, used as regulator, used as inhibitor, the multiplex xanthate is used as collecting for the CMC for the citric acid
Agent.
In the present invention, the flotation time of the roughing flotation is controlled in 4-8min；The flotation time of selected flotation for the first time
Control is in 4-8min；Second flotation time of selected flotation is controlled in 4-8min；The flotation time control of flotation is scanned for the first time
System is in 4-8min；The flotation time for scanning flotation for the second time is controlled in 4-8min；Third time scans the flotation time control of flotation
In 4-8min.
In the present invention, multiplex xanthate is 1 by butyl xanthate and isopropyl xanthate in mass ratio:1 mixes；Due to both
Xanthate produces eutectoid content on sulfide mineral surface, mutually interspersed, increases mineral surfaces xanthate adsorbance, and mineral hydrophobicity increases
By force.Therefore, the action effect of multiplex xanthate is better than single use butyl xanthate, compared with butyl xanthate is used, combination medicament
The rate of recovery of nickel can be made to improve 2 percentage points.
In the present invention, the combination action effect of the adjustment-suppression formed with CMC using citric acid is better than single use
The action effect of CMC, can further reduce the content of MgO in concentrate product.Mineral species containing magnesium silicate are various in raw ore,
And only may have preferable inhibition to certain silicate using single inhibitor.Show that citric acid is to snake by research
Preferably, CMC is preferable to the inhibition of talcum for the inhibition of line stone and pyroxene.The composite restrainer enhancing that two kinds of medicaments are formed
To the inhibitory action of gangue mineral.In addition, citric acid can also clean the oxide-film on sulphide ore surface, the floating of sulfide is improved
Floatability is selected, while removing the Ni on silicate mineral surface2+、Cu2+Active centre, reduce its floatability.
Beneficial effect：Operation of the present invention is few, and the rate of recovery is high, and reagent consumption is few, can on the premise of concentrate grade is not influenceed,
The rate of recovery is improved, economic benefit is substantially increased.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
Referring to Fig. 1, a kind of process chart of nickel ore-dressing of polymetallic ore technique sieves the raw ore that granularity is 400 ㎜ by broken
Point, nickel grade is that 0.75%, copper grade is that 0.18%, cobalt grade is 0.029% in the raw ore.Obtain the fine ore that granularity is 12 ㎜；
The fine ore that granularity is 12 ㎜ is passed through into grind grading, it is the ore pulp that -200 mesh account for 70% to obtain ore grain size；To ore grain size for-
200 mesh account for the 70% interior addition citric acid of ore pulp, and the consumption of citric acid is dry ore deposit amount addition 1500g per ton, during the effect of citric acid
Between 3min, be subsequently adding CMC, the consumption of CMC adds 175g, the action time 3min of CMC for dry ore deposit amount per ton；It is subsequently adding multiple
Xanthate and No. 2 oil are closed, the consumption of multiplex xanthate is dry ore deposit amount addition 60g per ton, and No. 2 consumptions of oil are added for dry ore deposit amount per ton
43g, multiplex xanthate and No. 2 action time 2min of oil, enter roughing flotation after stirring, the multiplex xanthate is by butyl xanthate
In mass ratio it is 1 with isopropyl xanthate:1 mixes；The CMC is carboxymethylcellulose calcium, and No. 2 oil is terpenic oil；Slightly
The concentrate after flotation is selected to enter into selected flotation for the first time, the mine tailing after roughing flotation is entered into scans flotation for the first time, the
CMC is added at primary cleaning flotation, the consumption of CMC is the dry addition of ore deposit amount 40g, the action time 3min of CMC per ton；For the first time
The consumption of addition CMC, CMC at flotation is scanned for dry ore deposit amount per ton adds 40g, the action time 3min of CMC；It is subsequently adding compound
Xanthate and No. 2 oil, the consumption of multiplex xanthate is dry ore deposit amount addition 40g per ton, and No. 2 consumptions of oil add 18g for dry ore deposit amount per ton,
Multiplex xanthate and No. 2 action time 2min of oil；The concentrate scanned after flotation for the first time returns to roughing flotation, scans for the first time
Mine tailing after flotation is entered into scans flotation for the second time, and addition multiplex xanthate, the use of multiplex xanthate at flotation are being scanned for the second time
Measure as dry ore deposit amount per ton adds 23g, the action time 2min of multiplex xanthate, the concentrate return that flotation is scanned for the second time is swept for the first time
Flotation is selected, the mine tailing that flotation is scanned for the second time enters into third time and scans flotation, is being scanned in third time and added at flotation compound Huang
Medicine, the consumption of multiplex xanthate is the dry addition of ore deposit amount 13g, the action time 2min of multiplex xanthate per ton, and flotation is scanned for the third time
Concentrate is returned to and scans flotation for the second time, and the mine tailing as true tailings of flotation is scanned for the third time；For the first time after selected flotation
Concentrate enters into second selected flotation, and the mine tailing after selected flotation returns to roughing flotation for the first time, second selected flotation
Mine tailing afterwards returns to selected flotation for the first time, and the concentrate after second selected flotation is final concentrate.The final concentrate
Middle nickel grade is 7.95%, and nickel recovery is 79.00%, and copper grade is 1.48%, and copper recovery is 72.50% flotation concentrate.Institute
Citric acid is stated as regulator, used as inhibitor, the multiplex xanthate is used as collecting agent for the CMC.The roughing flotation it is floating
Time control is selected in 6min；The flotation time of selected flotation for the first time is controlled in 6min；Second flotation time of selected flotation
Control is in 6min；The flotation time for scanning flotation for the first time is controlled in 6min；The flotation time control for scanning flotation for the second time exists
6min；The flotation time that third time scans flotation is controlled in 6min.
Embodiment 2
Referring to Fig. 1, a kind of process chart of nickel ore-dressing of polymetallic ore technique sieves the raw ore that granularity is 300 ㎜ by broken
Point, nickel grade is that 0.73%, copper grade is that 0.16%, cobalt grade is 0.029% in the raw ore.Obtain the fine ore that granularity is 10 ㎜；
The fine ore that granularity is 10 ㎜ is passed through into grind grading, it is the ore pulp that -200 mesh account for 70% to obtain ore grain size；To ore grain size for-
200 mesh account for the 70% interior addition citric acid of ore pulp, and the consumption of citric acid is dry ore deposit amount addition 1400g per ton, during the effect of citric acid
Between 3min, be subsequently adding CMC, the consumption of CMC adds 170g, the action time 3min of CMC for dry ore deposit amount per ton；It is subsequently adding multiple
Xanthate and No. 2 oil are closed, the consumption of multiplex xanthate is dry ore deposit amount addition 55g per ton, and No. 2 consumptions of oil are added for dry ore deposit amount per ton
40g, multiplex xanthate and No. 2 action time 2min of oil, enter roughing flotation after stirring, the multiplex xanthate is by butyl xanthate
In mass ratio it is 1 with isopropyl xanthate:1 mixes；The CMC is carboxymethylcellulose calcium, and No. 2 oil is terpenic oil；Slightly
The concentrate after flotation is selected to enter into selected flotation for the first time, the mine tailing after roughing flotation is entered into scans flotation for the first time, the
CMC is added at primary cleaning flotation, the consumption of CMC is the dry addition of ore deposit amount 35g, the action time 3min of CMC per ton；For the first time
The consumption of addition CMC, CMC at flotation is scanned for dry ore deposit amount per ton adds 35g, the action time 3min of CMC；It is subsequently adding compound
Xanthate and No. 2 oil, the consumption of multiplex xanthate is dry ore deposit amount addition 30g per ton, and No. 2 consumptions of oil add 15g for dry ore deposit amount per ton,
Multiplex xanthate and No. 2 action time 2min of oil；The concentrate scanned after flotation for the first time returns to roughing flotation, scans for the first time
Mine tailing after flotation is entered into scans flotation for the second time, and addition multiplex xanthate, the use of multiplex xanthate at flotation are being scanned for the second time
Measure as dry ore deposit amount per ton adds 20g, the action time 2min of multiplex xanthate, the concentrate return that flotation is scanned for the second time is swept for the first time
Flotation is selected, the mine tailing that flotation is scanned for the second time enters into third time and scans flotation, is being scanned in third time and added at flotation compound Huang
Medicine, the consumption of multiplex xanthate is the dry addition of ore deposit amount 10g, the action time 2min of multiplex xanthate per ton, and flotation is scanned for the third time
Concentrate is returned to and scans flotation for the second time, and the mine tailing as true tailings of flotation is scanned for the third time；For the first time after selected flotation
Concentrate enters into second selected flotation, and the mine tailing after selected flotation returns to roughing flotation for the first time, second selected flotation
Mine tailing afterwards returns to selected flotation for the first time, and the concentrate after second selected flotation is final concentrate.The final concentrate
Middle nickel grade is 7.80%, and nickel recovery is 78.05%, and copper grade is 1.45%, and copper recovery is 71.50% flotation concentrate.Institute
Citric acid is stated as regulator, used as inhibitor, the multiplex xanthate is used as collecting agent for the CMC.The roughing flotation it is floating
Time control is selected in 4min；The flotation time of selected flotation for the first time is controlled in 4min；Second flotation time of selected flotation
Control is in 4min；The flotation time for scanning flotation for the first time is controlled in 4min；The flotation time control for scanning flotation for the second time exists
4min；The flotation time that third time scans flotation is controlled in 4min.
Embodiment 3
Referring to Fig. 1, a kind of process chart of nickel ore-dressing of polymetallic ore technique sieves the raw ore that granularity is 500 ㎜ by broken
Point, nickel grade is that 0.8%, copper grade is that 0.2%, cobalt grade is 0.03% in the raw ore.Obtain the fine ore that granularity is 15 ㎜；Will
Granularity is that the fine ore of 15 ㎜ passes through grind grading, and it is the ore pulp that -200 mesh account for 70% to obtain ore grain size；It is -200 to ore grain size
Mesh accounts for the 70% interior addition citric acid of ore pulp, and the consumption of citric acid is dry ore deposit amount addition 1600g per ton, the action time of citric acid
3min, is subsequently adding CMC, and the consumption of CMC is the dry addition of ore deposit amount 180g, the action time 3min of CMC per ton；It is subsequently adding compound
Xanthate and No. 2 oil, the consumption of multiplex xanthate is dry ore deposit amount addition 65g per ton, and No. 2 consumptions of oil add 45g for dry ore deposit amount per ton,
Multiplex xanthate and No. 2 action time 2min of oil, enter roughing flotation after stirring, the multiplex xanthate is by butyl xanthate and different
Propyl group xanthate is 1 in mass ratio:1 mixes；The CMC is carboxymethylcellulose calcium, and No. 2 oil is terpenic oil；Roughing is floated
Concentrate after choosing enters into selected flotation for the first time, and the mine tailing after roughing flotation is entered into scans flotation for the first time, for the first time
CMC is added at selected flotation, the consumption of CMC is the dry addition of ore deposit amount 45g, the action time 3min of CMC per ton；Scanned in first time
CMC is added at flotation, the consumption of CMC is the dry addition of ore deposit amount 45g, the action time 3min of CMC per ton；It is subsequently adding multiplex xanthate
With No. 2 oil, the consumption of multiplex xanthate is dry ore deposit amount addition 35g per ton, and No. 2 consumptions of oil add 20g, are combined for dry ore deposit amount per ton
Xanthate and No. 2 action time 2min of oil；The concentrate scanned after flotation for the first time returns to roughing flotation, and flotation is scanned for the first time
Mine tailing afterwards is entered into scans flotation for the second time, and for the second time scanning addition multiplex xanthate at flotation, the consumption of multiplex xanthate is
Dry ore deposit amount per ton adds 25g, the action time 2min of multiplex xanthate, and the concentrate return that flotation is scanned for the second time scans floating for the first time
Choosing, the mine tailing that flotation is scanned for the second time enters into third time and scans flotation, and addition multiplex xanthate is being scanned at flotation in third time, multiple
The consumption of xanthate is closed for dry ore deposit amount per ton adds 15g, the action time 2min of multiplex xanthate, the concentrate that flotation is scanned for the third time to return
Return to and scan flotation for the second time, the mine tailing as true tailings of flotation is scanned for the third time；The concentrate after selected flotation enters for the first time
Enter to second selected flotation, the mine tailing after selected flotation returns to roughing flotation for the first time, the tail after second selected flotation
Ore deposit returns to selected flotation for the first time, and the concentrate after second selected flotation is final concentrate.Nickel product in the final concentrate
Position is 8.09%, and nickel recovery is 79.37%, and copper grade is 1.52%, and copper recovery is 73.63% flotation concentrate.The lemon
Used as regulator, used as inhibitor, the multiplex xanthate is used as collecting agent for the CMC for acid.The flotation time of the roughing flotation
Control is in 8min；The flotation time of selected flotation for the first time is controlled in 8min；The flotation time control of second selected flotation exists
8min；The flotation time for scanning flotation for the first time is controlled in 8min；The flotation time for scanning flotation for the second time is controlled in 8min；The
The flotation time for scanning flotation for three times is controlled in 8min.
General principle of the invention and principal character and advantages of the present invention, the technology of the industry has been shown and described above
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (5)
1. a kind of nickel ore-dressing of polymetallic ore technique, it is characterised in that comprise the following steps：
The first step：By granularity for the raw ore of 300-500 ㎜ passes through crushing and screening, the fine ore that granularity is 10-15 ㎜ is obtained；
Second step：By granularity for the fine ore of 10-15 ㎜ passes through grind grading, it is the ore pulp that -200 mesh account for 70% to obtain ore grain size；
3rd step：It is that -200 mesh account for citric acid is added in 70% ore pulp to ore grain size, the consumption of citric acid is dry ore deposit amount per ton
1400 ~ 1600g, the action time 3min of citric acid are added, CMC is subsequently adding, the consumption of CMC adds 170 for dry ore deposit amount per ton ~
The action time 3min of 180g, CMC；Multiplex xanthate and No. 2 oil are subsequently adding, the consumption of multiplex xanthate is dry ore deposit amount addition per ton
55 ~ 65g, No. 2 consumptions of oil add 40 ~ 45g, multiplex xanthate and No. 2 action time 2min of oil for dry ore deposit amount per ton, and stirring is equal
Enter roughing flotation after even, the multiplex xanthate is 1 by butyl xanthate and isopropyl xanthate in mass ratio:1 mixes；It is described
CMC is carboxymethylcellulose calcium, and No. 2 oil is terpenic oil；
4th step：Concentrate after roughing flotation enters into selected flotation for the first time, and the mine tailing after roughing flotation is entered into for the first time
Flotation is scanned, CMC is added at selected flotation for the first time, the consumption of CMC is 35 ~ 45g of dry ore deposit amount addition per ton, the effect of CMC
Time 3min；The consumption of addition CMC, CMC at flotation is scanned for dry ore deposit amount per ton adds 35 ~ 45g, the effect of CMC in first time
Time 3min；It is subsequently adding multiplex xanthate and No. 2 oil, the consumption of multiplex xanthate adds 30 ~ 35g for dry ore deposit amount per ton, No. 2 oil
Consumption adds 15 ~ 20g, multiplex xanthate and No. 2 action time 2min of oil for dry ore deposit amount per ton；
5th step：The concentrate scanned after flotation for the first time returns to roughing flotation, the mine tailing after flotation is scanned for the first time and is entered into
Flotation being scanned for the second time, addition multiplex xanthate at flotation being scanned for the second time, the consumption of multiplex xanthate is dry ore deposit amount addition per ton
20 ~ 25g, the action time 2min of multiplex xanthate, the concentrate return that flotation is scanned for the second time scan flotation for the first time, sweep for the second time
Select the mine tailing of flotation to enter into third time and scan flotation, addition multiplex xanthate, the use of multiplex xanthate at flotation are scanned in third time
It is that dry ore deposit amount per ton adds 10 ~ 15g, the action time 2min of multiplex xanthate to measure, and the concentrate that flotation is scanned for the third time returns to the
It is secondary to scan flotation, the mine tailing as true tailings of flotation is scanned for the third time；
6th step：The concentrate after selected flotation enters into second selected flotation for the first time, for the first time the mine tailing after selected flotation
Roughing flotation is returned to, the mine tailing after second selected flotation returns to selected flotation for the first time, after second selected flotation
Concentrate is final concentrate.
2. a kind of nickel ore-dressing of polymetallic ore technique according to claim 1, it is characterised in that nickel grade is in the raw ore
0.70-0.95%, copper grade are 0.10-0.29%, cobalt grade is 0.020-0.035%.
3. a kind of nickel ore-dressing of polymetallic ore technique according to claim 1, it is characterised in that nickel product in the final concentrate
Position is 7.80-8.59%, and nickel recovery is 77.00-82.99%, and copper grade is 1.40-1. 89%, and copper recovery is 71.00-
78.99% flotation concentrate.
4. a kind of nickel ore-dressing of polymetallic ore technique according to claim 1, it is characterised in that the citric acid is used as adjustment
Agent, used as inhibitor, the multiplex xanthate is used as collecting agent for the CMC.
5. a kind of nickel ore-dressing of polymetallic ore technique according to claim 1, it is characterised in that the flotation of the roughing flotation
Time control is in 4-8min；The flotation time of selected flotation for the first time is controlled in 4-8min；During the flotation of second selected flotation
Between control in 4-8min；The flotation time for scanning flotation for the first time is controlled in 4-8min；The flotation time of flotation is scanned for the second time
Control is in 4-8min；The flotation time that third time scans flotation is controlled in 4-8min.
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