CN105344488B - Novel inhibitor for aluminosilicate minerals and application method thereof - Google Patents
Novel inhibitor for aluminosilicate minerals and application method thereof Download PDFInfo
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- CN105344488B CN105344488B CN201510807603.7A CN201510807603A CN105344488B CN 105344488 B CN105344488 B CN 105344488B CN 201510807603 A CN201510807603 A CN 201510807603A CN 105344488 B CN105344488 B CN 105344488B
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- inhibitor
- bauxite
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- flotation
- aluminium silicate
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- 239000003112 inhibitor Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 title abstract 2
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 32
- 238000005188 flotation Methods 0.000 claims abstract description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 24
- 239000011707 mineral Substances 0.000 claims abstract description 24
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 8
- 239000010452 phosphate Substances 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 6
- 230000005764 inhibitory process Effects 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052710 silicon Inorganic materials 0.000 claims abstract 2
- 239000010703 silicon Substances 0.000 claims abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 239000005995 Aluminium silicate Substances 0.000 claims description 18
- 235000012211 aluminium silicate Nutrition 0.000 claims description 18
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 18
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 18
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 150000002500 ions Chemical class 0.000 abstract description 8
- -1 amino trimethylene potassium phosphate Chemical compound 0.000 abstract description 4
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 abstract description 2
- 239000001488 sodium phosphate Substances 0.000 abstract description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 abstract description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 abstract 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 abstract 1
- 229910000160 potassium phosphate Inorganic materials 0.000 abstract 1
- 235000011009 potassium phosphates Nutrition 0.000 abstract 1
- 229910001648 diaspore Inorganic materials 0.000 description 10
- 230000002401 inhibitory effect Effects 0.000 description 7
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 7
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- TVHALOSDPLTTSR-UHFFFAOYSA-H hexasodium;[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O TVHALOSDPLTTSR-UHFFFAOYSA-H 0.000 description 2
- 229910052900 illite Inorganic materials 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 150000003384 small molecules Chemical group 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 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
- B03D1/014—Organic compounds containing phosphorus
-
- 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
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a novel inhibitor for aluminosilicate minerals and a using method thereof. The inhibitor is an organic composite phosphate, and the main component of the inhibitor is amino trimethylene potassium phosphate or amino trimethylene sodium phosphate with small molecular weight. The using method comprises the following steps: when the bauxite direct flotation is carried out, the bauxite grinding product with the aluminum-silicon ratio of 3-5 has the granularity property of minus 0.074mm and accounts for 80-90%, the pH value of a flotation system is controlled to be 9-11, sodium oleate is used as a collecting agent, the using amount is 500-1200g/t, and the using amount of the inhibitor is 60-70 g/t. The application of the invention in the bauxite direct flotation desilication process can enhance the selective inhibition effect on the silicon-containing minerals and enhance the inhibition effect on the inevitable ions (Ca)2+、Mg2+Etc.) and improving the effect of direct flotation of bauxite.
Description
Technical field
The present invention relates to Mineral Processing Engineering field, more particularly to the new inhibitor of a kind of aluminium silicate mineral and its make
With method, belong to comprehensive utilization of resources engineering.
Background technology
China's bauxite resource belongs to diaspore type bauxite mostly, and wherein alumina silica ratio is more than 7 high-quality bauxite
Ratio is seldom, and 80% or more diaspore type bauxite alumina silica ratio is both less than 7, and the bauxite of alumina silica ratio 3-5 accounts for absolutely
It is most of.This part resource must carry out desiliconization, enrichment and upgrading by beneficiation method, so that alumina silica ratio is more than 7, so as to meet
The Minimum requirements of lime-Bayer process.Floatation is the main method of ore dressing and desiliconizing, and direct flotation is undoubtedly current most successful
A kind of bauxite floating method.When bauxite forward flotation, according to the essential mineral compositing characteristic of diaspore type bauxite, adopt
Use sodium carbonate as pH values of pulp inhibitor, the suppression using waterglass, calgon, Quadrafos etc. as aluminium silicate mineral
Preparation, using oxidized paraffin wax soap or enuatrol as collecting agent, by ore diaspore and rich intergrowth select, to
Realize the flotation desilication of bauxite.
During bauxite forward flotation, the selective depression and ore pulp of the siliceous minerals such as kaolinite, pyrophillite, illite
The elimination of middle unavoidable ion will play decisive role to the direct flotation of bauxite.The effect of inhibitor is efficiently to inhibit siliceous mine
Object and elimination unavoidable ion influence, while not causing to inhibit to diaspore again.
Currently, mainly using waterglass, calgon, Quadrafos etc. as siliceous mineral in bauxite forward flotation
Inhibitor, these inhibitor can also play the role of reacting with unavoidable ion simultaneously.But the major defect of these inhibitor is：
Dosage is larger, also has inhibiting effect to diaspore, especially under the conditions of big dosage, often to the inhibition of diaspore
Relatively strong, to cause the decline of the Al2O3 rate of recovery, while the inhibitor such as calgon are to the elimination of unavoidable ion in ore pulp
It is completed by complexing, generally requires to consume a large amount of calgon, effect is also general, so as to cause direct flotation effect
Generally.
Invention content
In order to overcome disadvantages described above, the present invention to provide a kind of new inhibitor and its application method of aluminium silicate mineral,
Apply the present invention in bauxite direct-flotation desiliconisation technique, the selective inhibitory to siliceous mineral can be enhanced, increased simultaneously
By force to unavoidable ion (Ca2+、Mg2+Deng) elimination ability, improve the effect of bauxite forward flotation.
In order to achieve the above object, the technical solution adopted in the present invention is：A kind of new inhibitor of aluminium silicate mineral,
It is a kind of organic composite phosphate, and main component is the aminotrimethylenephosphonic acid potassium or aminotrimethylenephosphonic acid of small-molecular-weight
Sodium, structural formula are：
Or
A kind of application method of the new inhibitor of aluminium silicate mineral, when carrying out bauxite forward flotation, alumina silica ratio 3-5's
Bauxite Milling product granularity property is that -0.074mm grades account for 80-90%, and the pH value of flotation system is controlled in 9-11, with oleic acid
Sodium is 60-70g/t as collecting agent, dosage 500-1200g/t, inhibitor dosage of the present invention.
Further, when new inhibitor dosage is 60g/t, for the bauxite of alumina silica ratio 4-5, product granularity property
80%-85% is accounted for for -0.074mm grades, the basicity control of flotation system is pH=10-11, using enuatrol as collecting agent, dosage
In 800-1200g/t.
Further, a kind of dosage of inhibitor for diaspore type bauxite direct flotation is 60g/t.
Further, the pH value of the flotation system is 10.
Further, the dosage of the collecting agent enuatrol is 700g/t.
Beneficial effects of the present invention：1, a kind of new inhibitor of aluminium silicate mineral of the present invention is a kind of organic composite
Phosphate contains multiple organic composite phosphate radicals in the molecular structure of main component.New inhibitor organic composite sodium phosphate
The functional group of (potassium) be organophosphor acid group, dissolubility is extremely strong, and appearance is transparent and colorless liquid, by organic composite be modified with
Afterwards, the Molecular Geometries of phosphate radical changes, and so as to which chelation occurs with aluminium silicate mineral surface, increases
Strong selectivity inhibiting effect, and it is then general to the inhibiting effect of diaspore；
Inhibit the aluminium silicate mineral in bauxite can be effective by efficiently chelating inhibiting effect using the present invention
The aluminium silicate minerals such as selective depression kaolinite, illite, pyrophillite, at the same can efficiently eliminate in ore pulp it is inevitable sun from
Influence of the son to flotation effect, promotion diaspore and siliceous mineral efficiently separate.
2 at the same its molecular structure in contain multiple organophosphor acid groups functional group, these functional groups can directly with Ca2+, Mg2
+ wait cations to react, the elimination ability to unavoidable ion in ore pulp is considerably increased, the shadow of unavoidable ion can be effectively eliminated
It rings, to improve the effect of bauxite forward flotation.
3, identical in other process conditions to the bauxite of alumina silica ratio 3-5 or so, after applying the present invention, with
Conventional inhibitor calgon is compared, and concentrate alumina silica ratio 1-2 can be improved, and improves Al2O3Rate of recovery 10-20%.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, with reference to specific embodiment to this
Invention is described in detail, and the description of this part is only exemplary and explanatory, should not be had to protection scope of the present invention any
Restriction effect.
Example 1：
A kind of new inhibitor of aluminium silicate mineral, it is a kind of organic composite phosphate, and main component is small molecule
The aminotrimethylenephosphonic acid potassium of amount, structural formula are：
The Henan mining areas little Guan bauxite, sample ore ingredient are shown in Table 1.
1 raw ore chemistry multielement analysis of table
| Element | Al2O3 | SiO2 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | S | A/S |
| Content (%) | 58.85 | 11.79 | 10.86 | 2.65 | 0.68 | 0.29 | 1.34 | 0.078 | 0.22 | 4.99 |
Direct floatation process system is：Bauxite Milling product granularity property is that -0.074mm grades account for 85%, flotation system
Basicity control be pH=10, using enuatrol as collecting agent, for dosage in 500-800g/t, inhibitor dosage is 60g/t, ore dressing
Flow is one roughing open circuit flow.It is comparison with conventional inhibitor calgon, test result is shown in Table 2.
2 inhibitor comparative test result of table
Test result shows inhibitor using the present invention (organically-modified phosphate), can significantly reinforce to siliceous mine
The selective inhibitory of object promotes floatation process index, and the alumina silica ratio of rough concentrate is increased to 8.40 from 8.29, alumina recovery
Rate is increased to 73.52% from 53.12%.
Embodiment 2：
A kind of new inhibitor of aluminium silicate mineral, it is a kind of organic composite phosphate, and main component is small molecule
The aminotrimethylenephosphonic acid sodium of amount, structural formula are：
The Henan mining areas little Guan bauxite, sample ore ingredient are shown in Table 1.
Direct floatation process system is：Bauxite Milling product granularity property is that -0.074mm grades account for 85%, flotation system
Basicity control be pH=9, using enuatrol as collecting agent, for dosage in 700-1100g/t, inhibitor dosage is 70g/t, ore dressing
Flow is one roughing open circuit flow.It is comparison with conventional inhibitor calgon, test result is shown in Table 2.
2 inhibitor comparative test result of table
Test result shows inhibitor using the present invention (organically-modified phosphate), can significantly reinforce to siliceous mine
The selective inhibitory of object promotes floatation process index, and the alumina silica ratio of rough concentrate is increased to 8.50 from 8.11, alumina recovery
Rate is increased to 71.52% from 51.12%.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment including a series of elements includes not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
Principle and implementation of the present invention are described for specific case used herein, the explanation of above example
It is merely used to help understand the method and its core concept of the present invention.The above is only a preferred embodiment of the present invention, it answers
When pointing out due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement, retouching or variation can also be made, can also incited somebody to action
Above-mentioned technical characteristic is combined in the right way；These improve retouching, variation or combination, or the not improved structure by invention
Think and technical solution directly applies to other occasions, is regarded as protection scope of the present invention.
Claims (5)
1. a kind of application method of the new inhibitor of aluminium silicate mineral, it is characterised in that：When carrying out bauxite forward flotation, aluminium
The bauxite Milling product granularity property of silicon ratio 3-5 is that -0.074mm grades account for 80-90%, and the pH value of flotation system is controlled in 9-
11, using enuatrol as collecting agent, dosage 500-1200g/t, the inhibitor dosage is 60-70g/t, the inhibition
Agent is a kind of organic composite phosphate, and main component is the aminotrimethylenephosphonic acid potassium or aminotrimethylenephosphonic acid of small-molecular-weight
Sodium, structural formula are：
Or。
2. the application method of the new inhibitor of aluminium silicate mineral according to claim 1, which is characterized in that novel suppression
When preparation dosage is 60g/t, for the bauxite of alumina silica ratio 5, product granularity property is that -0.074mm grades account for 85%, flotation body
The basicity control of system is pH=10, and using enuatrol as collecting agent, dosage is in 800-1200g/t.
3. the application method of the new inhibitor of aluminium silicate mineral according to claim 1, it is characterised in that：Described
The dosage of the inhibitor of aluminium silicate mineral is 60g/t.
4. the application method of the new inhibitor of aluminium silicate mineral according to claim 1, it is characterised in that：Described
The pH value of flotation system is 10.
5. the application method of the new inhibitor of aluminium silicate mineral according to claim 1, it is characterised in that：Described
The dosage of collecting agent enuatrol is 700g/t.
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| CN201510807603.7A CN105344488B (en) | 2015-11-19 | 2015-11-19 | Novel inhibitor for aluminosilicate minerals and application method thereof |
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|---|---|---|---|
| CN201510807603.7A CN105344488B (en) | 2015-11-19 | 2015-11-19 | Novel inhibitor for aluminosilicate minerals and application method thereof |
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| CN105344488A CN105344488A (en) | 2016-02-24 |
| CN105344488B true CN105344488B (en) | 2018-08-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106423582B (en) * | 2016-12-07 | 2018-08-17 | 广西大学 | A kind of preparation method of potassium feldspar inhibitor |
| CN111195563B (en) * | 2020-01-10 | 2021-07-02 | 昆明理工大学 | Preparation method and application method of inhibitor for separation of tennantite and chalcopyrite |
| CN112791858B (en) * | 2020-12-18 | 2021-12-14 | 中南大学 | Chalcopyrite composite collecting agent and preparation method and application thereof |
| CN113578531A (en) * | 2021-07-20 | 2021-11-02 | 中国地质科学院郑州矿产综合利用研究所 | Synchronous desulfurization and desilication method for direct flotation of high-sulfur bauxite |
| CN114054212B (en) * | 2021-10-21 | 2022-11-25 | 中南大学 | Composite inhibitor and application thereof |
| CN114950743A (en) * | 2022-03-03 | 2022-08-30 | 中南大学 | Flotation method for high-calcium tungsten ore |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101844110B (en) * | 2010-06-11 | 2013-01-09 | 中国地质科学院郑州矿产综合利用研究所 | Sulfide ore flotation layered silicate mineral inhibitor |
| CN102489411B (en) * | 2011-12-26 | 2013-11-27 | 昆明理工大学 | Flotation two-stage desiliconization method for high-silicon bauxite |
| KR102062935B1 (en) * | 2012-04-12 | 2020-01-06 | 발레 에스.에이. | A method for improving selectivity and recovery in the flotation of nickel sulphide ores that contain pyrhotite by exploiting the synergy of multiple depressants |
| CN103480499B (en) * | 2013-09-25 | 2015-07-15 | 中国地质科学院郑州矿产综合利用研究所 | Regulator for direct flotation of diasporic bauxite and using method thereof |
| CN103480497B (en) * | 2013-09-25 | 2015-04-29 | 中国地质科学院郑州矿产综合利用研究所 | Combined collector for direct flotation of diasporic bauxite and using method thereof |
| CN103951701B (en) * | 2014-04-15 | 2015-12-09 | 中南大学 | A kind of aminophosphonic acid compounds and methods for making and using same thereof |
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