CN106583057A - Preparing and application for copper and molybdenum sulphide ore separating flotation inhibitor - Google Patents
Preparing and application for copper and molybdenum sulphide ore separating flotation inhibitor Download PDFInfo
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- CN106583057A CN106583057A CN201611159089.1A CN201611159089A CN106583057A CN 106583057 A CN106583057 A CN 106583057A CN 201611159089 A CN201611159089 A CN 201611159089A CN 106583057 A CN106583057 A CN 106583057A
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- copper
- molybdenum
- inhibitor
- sulfuration
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- 239000003112 inhibitor Substances 0.000 title claims abstract description 46
- 238000005188 flotation Methods 0.000 title claims abstract description 30
- 239000010949 copper Substances 0.000 title claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 18
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical compound [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 title abstract 3
- 239000012141 concentrate Substances 0.000 claims abstract description 38
- 229920001661 Chitosan Polymers 0.000 claims abstract description 34
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011733 molybdenum Substances 0.000 claims abstract description 19
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 16
- WUUZKBJEUBFVMV-UHFFFAOYSA-N copper molybdenum Chemical compound [Cu].[Mo] WUUZKBJEUBFVMV-UHFFFAOYSA-N 0.000 claims description 47
- 125000000446 sulfanediyl group Chemical group *S* 0.000 claims description 30
- 238000002360 preparation method Methods 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 238000005987 sulfurization reaction Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 235000011149 sulphuric acid Nutrition 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims description 8
- 239000001117 sulphuric acid Substances 0.000 claims description 6
- 230000006196 deacetylation Effects 0.000 claims description 5
- 238000003381 deacetylation reaction Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910001779 copper mineral Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 13
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract description 11
- 238000007667 floating Methods 0.000 abstract description 8
- 238000005886 esterification reaction Methods 0.000 abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 abstract 4
- 230000002401 inhibitory effect Effects 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 229920002521 macromolecule Polymers 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- RYTYSMSQNNBZDP-UHFFFAOYSA-N cobalt copper Chemical compound [Co].[Cu] RYTYSMSQNNBZDP-UHFFFAOYSA-N 0.000 description 13
- 230000000881 depressing effect Effects 0.000 description 11
- 229910052979 sodium sulfide Inorganic materials 0.000 description 10
- 229910052961 molybdenite Inorganic materials 0.000 description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 230000032050 esterification Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000003350 kerosene Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical group [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- OIGPMFVSGDDYHS-UHFFFAOYSA-N copper sulfanylidenemolybdenum Chemical compound [S].[Cu].[Mo] OIGPMFVSGDDYHS-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to beneficiation separation, in particular to preparing and application for a copper and molybdenum sulphide bulk concentrate separating flotation inhibitor. Preparing is characterized in that according to the floatation inhibitor, mercaptoacetic acid with a good inhibiting effect and chitosan are subjected to an esterification reaction, and a thiolated chitosan mixture is prepared. The inhibitor is composed of the mercaptoacetic acid with the good inhibiting effect, chitosan macromolecules with active hydroxyl and amino, and thiolated chitosan generated through the esterification reaction and is used for floatation of copper and molybdenum sulphide bulk concentrate separating, and a good copper inhibiting and molybdenum floating effect is achieved. The preparing method is simple, conditions are moderate, the cost of raw materials is low, the requirement of industrial production is met, and meanwhile the defects that the use amount of common sodium sulphide is large, the operation environment is severe, pollution is serious, and the beneficiation cost is high are overcome.
Description
Technical field
The invention belongs to technical field of mineral processing, and in particular to a kind of preparation of sulfuration copper-molybdenum separating flotation inhibitor
And application.
Background technology
The inhibitor generally adopted in the FLOTATION SEPARATION of copper-molybdenum bulk concentrate is Cyanogran., but Cyanogran. exist it is main
Problem is that toxicity is big, cyanide wastewater is not degradable, big to human body and environmental hazard and consumption is big, causes copper-cobalt ore cost inclined
It is high.Therefore Cyanogran. is replaced to have important practical significance from efficient, nontoxic or low toxicity inhibitor.
TGA shows because its selectivity is high, few, inhibition is good to pollute little, consumption in copper-cobalt ore application
Its superiority is shown.TGA can carry out flotation under relatively broad pH value, and action time is short, suppress selectivity high, its
Hypotoxicity and water solublity all promote its application industrially, are just showing that good development becomes in copper-cobalt ore industry
Gesture.Because sodium sulfide stability is poor, consumption is big, and TGA is relatively costly, therefore develops new and effective cheap copper-molybdenum point
It is still the main direction of studying of current copper-cobalt ore from inhibitor.Have been reported that and shitosan is used as into copper-cobalt ore inhibitor, but press down
Effect processed needs the problem of further raising.Chinese patent (CN105537002A) is that sulfhydrylization reagent is modified shell by research group
Polysaccharide, prepares thio chitosan, and is applied to vulcanize the inhibitor of copper-molybdenum separation of pulp concentrate.But in follow-up application
Although invention, the inhibitor has the floating molybdenum effect of suppression copper well, there is also product and is insoluble in water even weak acid, simultaneously synthesizing cost
Height, because the inherently good depressing agent of TGA and shitosan, in preparation process, by filtering, washing will
Unreacted TGA and shitosan, further through drying, increased production cost.Instant invention overcomes the deficiency of the invention,
Using the mixture of TGA and the esterification of shitosan as inhibitor product, form is colloidal cpd, is soluble in weak
Acid, the production technology of product is simplified significantly, and the step for reduce filtration, washing, being dried, simultaneous reactions temperature is entered at room temperature
OK, the response time also greatly shorten.The inhibitor effect of product utilization TGA, shitosan and thio chitosan three,
It is more convenient in actual applications, equally there is the preferably floating molybdenum effect of suppression copper.
The content of the invention
The purpose of the present invention is the deficiency existed for prior art, there is provided one kind has low production cost, uses secure side
The preparation and application of the inhibitor of sulfuration copper-molybdenum concentrate copper-cobalt ore flotation just, low in the pollution of the environment.
The purpose of the present invention is achieved by the following technical programs：
A kind of preparation method of sulfuration copper-molybdenum separating flotation inhibitor, it is characterised in that the detached suppression of the copper-molybdenum mineral
The preparation process of preparation is as follows：By percentage to the quality, weigh a certain amount of shitosan to be added in a certain amount of TGA, stir
Dissolving is mixed, in adding a certain amount of concentrated sulphuric acid, stirring reaction certain hour under room temperature, be inhibited agent product.
The deacetylation of the shitosan is more than or equal to 70%.
The shitosan is 1 with the mass ratio of TGA：10～20.
The concentrated sulphuric acid is the 0.5～1.0% of gross mass.
The mixing time is 5～12h.
A kind of sulfuration copper-molybdenum separating flotation inhibitor is applied to the separation process of copper-molybdenum bulk concentrate, by described flotation
Inhibitor realizes the isolated copper concentrate of copper-molybdenum mineral and molybdenum concntrate as the inhibitor of copper mineral.
Described copper-molybdenum bulk concentrate is that copper-molybdenum green ore is carried out into flotation, the copper-molybdenum bulk concentrate for obtaining.
The inhibitor of described copper be thio chitosan mixture, consumption 100～150g/t copper-molybdenum bulk concentrates.
There is esterification by depressing agent of the present invention in the TGA with better inhibition effect and shitosan, prepare
Into thio chitosan mixture.The inhibitor is by the TGA with better inhibition effect and containing active hydroxyl and amino
Shitosan macromole and the thio chitosan composition that produces of esterification, as the sulfuration detached flotation of copper-molybdenum bulk concentrate,
There is the effect of the preferably floating molybdenum of suppression copper.
Relative to prior art, the present invention has following remarkable advantage：
1st, the thio chitosan mixture that the copper sulfide molybdenum concentrate floatation inhibitor of present invention synthesis is used passes through sulfydryl second
There is esterification, shitosan and Cu with shitosan in acid2+Chelate is formed, and-SH groups have stronger reproducibility, Cu+With-
SH combinations are more stable, and suppression copper effect becomes apparent from.
2nd, the thio chitosan mixture TGA of synthesis, shitosan and thio chitosan, it is any former in synthesis
Material does not lose, and gives full play to the inhibitor effect of each material.
3rd, synthesis technique is gentle, and simple to operate, manufacturing cost is low, and effect is good.
Description of the drawings
Fig. 1 shows thio chitosan synthetic route.
Specific embodiment
The present invention is further described with reference to embodiment, but protection scope of the present invention is not limited to this.
The preparation and application of present invention sulfuration copper-molybdenum separating flotation inhibitor, it is characterised in that the separation copper-molybdenum concentrate
The preparation process of depressing agent is as follows：Weigh a certain amount of shitosan to be added in a certain amount of TGA, stirring and dissolving, then
In adding a certain amount of concentrated sulphuric acid, stirring reaction certain hour under room temperature, be inhibited agent product.
The deacetylation of the shitosan is more than or equal to 70%.
Shitosan described in the inventive method is 1 with the mass ratio of sulfhydrylization reagent：10～20.
Concentrated sulphuric acid described in the inventive method is the 0.5～1.0% of gross mass.
Mixing time described in the inventive method is 5～12h.
Depressing agent described in the inventive method is used to vulcanize the copper-cobalt ore process of copper-molybdenum bulk concentrate, will be described
Depressing agent the isolated copper concentrate of copper-molybdenum mineral and molybdenum concntrate are realized as the inhibitor of copper mineral.
Copper-molybdenum bulk concentrate described in the inventive method is that sulfuration copper-molybdenum raw ore is carried out into flotation, and the copper-molybdenum for obtaining is mixed
Close concentrate.
The inhibitor of the copper described in the inventive method be thio chitosan, consumption 100～150g/t copper-molybdenum bulk concentrates.
Preparation method of the present invention is simple, and mild condition, cost of material is low, meets demand of industrial production, while overcoming often
Amount of sodium sulfide is big, the shortcoming that severe operational environment, seriously polluted, beneficiation cost are high.
Embodiment 1：
(1) preparation of thio chitosan：It is 70% shitosan 10g to weigh deacetylation, is added to the TGA of 100g
In 1g concentrated sulphuric acids, 12h is stirred under room temperature, obtain thio chitosan mixture.
(2) copper-cobalt ore depressing agent prepared by the present invention is carried out into Within Monominerals flotation experiments to verify its floating molybdenum of suppression copper
Effect.200g molybdenites and 200g Chalkopyrites are added in 3000mL distilled water respectively, it is 9.5 to adjust pH with lime white, successively
The thio chitosan mixture for adding variable concentrations step (1) to prepare, stirs 5min, adds kerosene 70mg, stirs 5min, adds
Terpenic oil 20mg, stirs 5min；Scrape bubble 5min, foam and product from failing be collected, dry, weigh after calculate the response rate.It is identical
Under the conditions of sodium sulfide make inhibitor comparing result, be shown in Table 1, table 2.
Impact of the thio chitosan consumption of table 1 to mineral floatability
Impact of the amount of sodium sulfide of table 2 to mineral floatability
(3) (molybdenite and Chalkopyrite press 1 the copper-cobalt ore depressing agent for preparing to be used as into artificial mixed ore:1 mixing and
Into) separation, experimental result is shown in Table 3, and terpenic oil consumption is 10mg/L, as can be seen from Table 3：With thio chitosan mixture
The increase of consumption, Chalkopyrite response rate straight line declines and recovery rate of molybdenite is barely affected, meanwhile, Chalkopyrite and molybdenite
The gap of the response rate is increasing, therefore, separating effect is become better and better.
The thio chitosan mixture of table 3 is used as inhibitor and separates artificial mixed ore
(4) the copper-cobalt ore depressing agent for preparing is used as the separation of actual copper-molybdenum bulk concentrate, is first passed through cupric
The raw ore of molybdenum carries out flotation, obtains copper-molybdenum bulk concentrate, then directly the copper-molybdenum bulk concentrate of gained is carried out into separation and roughly selects behaviour
Make, specifically, carrying out during separation roughly selects, it is 9.5 to adjust pH with lime white, (sulfydryl shell gathers to add the inhibitor of copper
Sugared mixture) 100g/t and molybdenum collecting agent (kerosene) 100g/t and foaming agent (terpenic oil) 10g/t, and then it is thick to have obtained molybdenum
Rear ore pulp is roughly selected in concentrate and separation, product is collected, dries, weigh after calculate the response rate.The results are shown in Table 4
The thio chitosan mixture of table 4 is used as inhibitor and separates copper-molybdenum bulk concentrate (%)
By experiment process, inhibitor changes sodium sulfide into, and consumption is 25kg/t, is added at twice during flotation, floating in identical
Select in the time, it is that the 0.68%, response rate is 78.84% to obtain concentrate grade, when this is 100g/t with thio chitosan consumption
The response rate is substantially close, but molybdenum concentrate grade is low 1.67 percentage points..Sorting effect when thio chitosan consumption is 100g/t
Really, Jie Jin the selected result in original commerical test flow process, its reagent consumption is only the 0.4% of sodium sulfide.
Embodiment 2：
(1) preparation of thio chitosan：Deacetylation is weighed for 80% shitosan 5g, be added to 100g TGA and
In 0.5g concentrated sulphuric acids, 5h is stirred under room temperature, obtain thio chitosan mixture.
(2) copper-cobalt ore depressing agent prepared by the present invention is carried out into Within Monominerals flotation experiments to verify its floating molybdenum of suppression copper
Effect.200g molybdenites and 200g Chalkopyrites are added in 3000mL distilled water respectively, it is 10.5 to adjust pH with lime white, successively
The thio chitosan for adding variable concentrations step (1) to prepare, stirs 5min, adds kerosene 70mg, stirs 5min, adds terpenic oil
20mg, stirs 5min；Scrape bubble 5min, foam and product from failing be collected, dry, weigh after calculate the response rate.Under the same terms
Sodium sulfide makees inhibitor comparing result, is shown in Table 5, table 6.
Impact of the thio chitosan amount of mixture of table 5 to mineral floatability
Impact of the amount of sodium sulfide of table 6 to mineral floatability
(3) (molybdenite and Chalkopyrite press 1 the copper-cobalt ore depressing agent for preparing to be used as into artificial mixed ore:1 mixing and
Into) separation, experimental result is shown in Table 7, and terpenic oil consumption is 6mg/L, as can be seen from Table 7：With thio chitosan consumption
Increase, Chalkopyrite response rate straight line declines and recovery rate of molybdenite is barely affected, meanwhile, Chalkopyrite and recovery rate of molybdenite
Gap it is increasing, therefore, separating effect is become better and better.
The thio chitosan of table 7 is used as inhibitor and separates artificial mixed ore
(4) the copper-cobalt ore depressing agent for preparing is used as the separation of actual copper-molybdenum bulk concentrate, is first passed through cupric
The raw ore of molybdenum carries out flotation, obtains copper-molybdenum bulk concentrate, then directly the copper-molybdenum bulk concentrate of gained is carried out into separation and roughly selects behaviour
Make, specifically, carrying out during separation roughly selects, add copper inhibitor (thio chitosan mixture) 80g/t and
Collecting agent (kerosene) 100g/t and foaming agent (terpenic oil) 10g/t of molybdenum, and then obtained molybdenum rough concentrate and rear ore deposit is roughly selected in separation
Slurry, product is collected, dries, weigh after calculate the response rate.The results are shown in Table 8
The thio chitosan of table 8 is used as inhibitor and separates copper-molybdenum bulk concentrate (%)
| Product | Yield | Molybdenum grade | Molybdenum recovery |
| Concentrate | 10.43 | 6.12 | 75.24 |
| Mine tailing | 91.70 | 0.07 | 24.76 |
| To ore deposit | 100 | 0.290 | 100 |
By experiment process, inhibitor changes sodium sulfide into, and consumption is 25kg/t, is added at twice during flotation, floating in identical
Select in the time, it is that the 0.68%, response rate is 80.04% to obtain concentrate grade, when this is 150g/t with thio chitosan consumption
The substantially close ， Dan Molybdenum concentrate grades of the response rate are low 5.44 percentage points.Separating effect when thio chitosan consumption is 150g/t,
Jie Jin the selected result in original commerical test flow process, its reagent consumption is only the 0.6% of sodium sulfide.
Claims (8)
1. a kind of preparation method of sulfuration copper-molybdenum separating flotation inhibitor, it is characterised in that the detached suppression of the copper-molybdenum mineral
The preparation process of agent is as follows：By percentage to the quality, weigh a certain amount of shitosan to be added in a certain amount of TGA, stir
Dissolving, in adding a certain amount of concentrated sulphuric acid, stirring reaction certain hour under room temperature, be inhibited agent product.
2. the preparation and application of a kind of sulfuration copper-molybdenum separating flotation inhibitor according to claim 1, it is characterised in that：
The deacetylation of the shitosan is more than or equal to 70%.
3. it is according to claim 1 it is a kind of sulfuration copper-molybdenum separating flotation inhibitor preparation method, it is characterised in that：Institute
It is 1 that shitosan is stated with the mass ratio of TGA：10～20.
4. it is according to claim 1 it is a kind of sulfuration copper-molybdenum separating flotation inhibitor preparation method, it is characterised in that：Institute
Concentrated sulphuric acid is stated for the 0.5～1.0% of gross mass.
5. it is according to claim 1 it is a kind of sulfuration copper-molybdenum separating flotation inhibitor preparation method, it is characterised in that：Institute
Mixing time is stated for 5～12h.
6. a kind of sulfuration copper-molybdenum separating flotation inhibitor is applied to the separation process of copper-molybdenum bulk concentrate, and described flotation is pressed down
Preparation realizes the isolated copper concentrate of copper-molybdenum mineral and molybdenum concntrate as the inhibitor of copper mineral.
7. the application of a kind of sulfuration copper-molybdenum separating flotation inhibitor according to claim 6, it is characterised in that：Described
Copper-molybdenum bulk concentrate is that copper-molybdenum green ore is carried out into flotation, the copper-molybdenum bulk concentrate for obtaining.
8. the application of a kind of sulfuration copper-molybdenum separating flotation inhibitor according to claim 7, it is characterised in that：Described
The inhibitor of copper be thio chitosan mixture, consumption 100～150g/t copper-molybdenum bulk concentrates.
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| CN201611159089.1A CN106583057B (en) | 2016-12-15 | 2016-12-15 | A kind of preparation and application vulcanizing copper-molybdenum separating flotation inhibitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079964A (en) * | 2017-12-18 | 2018-05-29 | 安徽唯诗杨信息科技有限公司 | A kind of preparation process and its production equipment of sulfhydryl modified chitosan absorbent |
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