CN108906336A - Iron ore reverse flotation medicament and its application method - Google Patents
Iron ore reverse flotation medicament and its application method Download PDFInfo
- Publication number
- CN108906336A CN108906336A CN201811036005.4A CN201811036005A CN108906336A CN 108906336 A CN108906336 A CN 108906336A CN 201811036005 A CN201811036005 A CN 201811036005A CN 108906336 A CN108906336 A CN 108906336A
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- sodium
- parts
- concentrate
- iron ore
- flotation
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 238000005188 flotation Methods 0.000 title claims abstract description 56
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 48
- 239000003814 drug Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 15
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 claims abstract description 20
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 17
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical class CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims abstract description 16
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 claims abstract description 13
- 239000003112 inhibitor Substances 0.000 claims abstract description 10
- 239000011775 sodium fluoride Substances 0.000 claims abstract description 10
- 235000013024 sodium fluoride Nutrition 0.000 claims abstract description 10
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 4
- 239000012141 concentrate Substances 0.000 claims description 31
- 239000008139 complexing agent Substances 0.000 claims description 19
- 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 15
- 239000011734 sodium Substances 0.000 claims description 15
- 229910052708 sodium Inorganic materials 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- -1 lauryl amine acetic acid Salt Chemical class 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 150000003385 sodium Chemical class 0.000 claims description 2
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 239000001433 sodium tartrate Substances 0.000 claims description 2
- 229960002167 sodium tartrate Drugs 0.000 claims description 2
- 235000011004 sodium tartrates Nutrition 0.000 claims description 2
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 claims description 2
- 244000025254 Cannabis sativa Species 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 25
- 239000011707 mineral Substances 0.000 abstract description 25
- 235000010755 mineral Nutrition 0.000 abstract description 25
- 238000000926 separation method Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 17
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000003254 anti-foaming effect Effects 0.000 description 3
- HBRNMIYLJIXXEE-UHFFFAOYSA-N dodecylazanium;acetate Chemical group CC(O)=O.CCCCCCCCCCCCN HBRNMIYLJIXXEE-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229910001608 iron mineral Inorganic materials 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- IZBZQUREHISXFJ-UHFFFAOYSA-N 2-[4-chloro-5-methyl-3-(trifluoromethyl)pyrazol-1-yl]acetic acid Chemical compound CC1=C(Cl)C(C(F)(F)F)=NN1CC(O)=O IZBZQUREHISXFJ-UHFFFAOYSA-N 0.000 description 1
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005456 ore beneficiation Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229960001790 sodium citrate Drugs 0.000 description 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 description 1
- 229940039790 sodium oxalate Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 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
- B03D1/018—Mixtures of inorganic and organic compounds
-
- 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
- B03D2201/06—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
- B03D2203/04—Non-sulfide ores
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of iron ore reverse flotation medicament and its application method, which includes the component of following parts by weight：50-60 parts of lauryl amine salt 40-50 parts of dodecyl trimethyl ammonium chloride 10-15 parts of sodium fluoride 10-15 parts of waterglass 10-15 parts of polyacrylamide 15-20 parts of sodium tripolyphosphate 3-5 parts of pH regulator of 10-20 parts of inhibitor.Beneficial effects of the present invention are：The iron ore reverse flotation medicament is to valuable mineral and gangue mineral separation selectivity with higher.
Description
Technical field
The present invention relates to iron ore, in particular to a kind of iron ore reverse flotation medicament and its application method.
Background technique
China's iron ore deposit the features such as there are raw ore taste low, complicated composition, thin disseminated grain size, only lean on traditional magnetic separation work
Skill is difficult to reach the requirement of smelting.Flotation shared increasingly consequence in iron ore beneficiation.Flotation passes through floating agent spirit
Work efficiently controls floatation process, successfully separates valuable mineral and gangue mineral.Wherein, the conduct in ore pulp by gangue mineral
The method of tailing discharge is reverse flotation direct flotation.
The Chinese patent of Publication No. CN103495506A discloses a kind of medicament for iron ore reverse flotation and combination
Application method.The medicament for being used for iron ore reverse flotation is formed sediment by pH regulator sodium hydroxide, desorbing agent, inhibitor causticity corn
Powder, activator calcium oxide and fatty acid collecting agent are constituted, and desorbing agent is made of the following raw material component by weight：Waterglass
40-42 parts, 4-6 parts of carboxymethyl cellulose and 7-9 parts of polycarboxylate, modulus of water glass 1-2, carboxymethyl cellulose viscosity 800-
1200mPas, degree of substitution >=0.9, polycarboxylate molecular weight 3000-4000, solid content 40%.
But the medicament for being used for iron ore reverse flotation is not high for the separation selectivity of valuable mineral and gangue mineral,
Have much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of iron ore reverse flotation medicaments.The iron ore reverse flotation medicament to valuable mineral and
Gangue mineral separation selectivity with higher.
Above-mentioned technical purpose of the invention technical scheme is that：
A kind of iron ore reverse flotation medicament, the component including following parts by weight：
50-60 parts of lauryl amine salt
40-50 parts of dodecyl trimethyl ammonium chloride
10-15 parts of sodium fluoride
10-15 parts of waterglass
10-15 parts of polyacrylamide
15-20 parts of sodium tripolyphosphate
10-20 parts of inhibitor
3-5 parts of pH regulator.
The present invention is further arranged to：It further include 20-25 parts of complexing agent according to parts by weight.
The present invention is further arranged to：The complexing agent is selected in sodium tartrate, sodium oxalate, sodium citrate and EDETATE SODIUM
One kind.
The present invention is further arranged to：The lauryl amine salt is lauryl amine acetate.
The present invention is further arranged to：The inhibitor includes sodium humate and sodium lignin sulfonate, the sodium humate
Weight ratio with sodium lignin sulfonate is 1: 1.
The present invention is further arranged to：The pH regulator selects sodium hydroxide or sodium carbonate.
Another goal of the invention of the invention is to provide a kind of application method such as above-mentioned iron ore reverse flotation medicament, including
Following steps：
Step 1：Controlled at 5-15 DEG C, iron rough concentrate is tuned into the ore pulp that weight concentration is 40-45%, pH is added in when roughing
Regulator makes slurry pH reach 11, adds inhibitor, and partially fluorinated sodium is then added, and waterglass and poly- third is then added
Acrylamide is eventually adding part lauryl amine salt, part dodecyl trimethyl ammonium chloride, part complexing agent and part tripolyphosphate
Sodium is sufficiently stirred rear ore pulp and is sent into flotation device, into rough floatation operation；
Step 2：Rough floatation operation obtains rough floatation concentrate, and rough floatation concentrate enters cleaner flotation operation, in cleaner flotation group job,
Remaining sodium fluoride first is added to rough floatation concentrate, adds remaining lauryl amine salt, remaining dodecyl trimethyl ammonium chloride, residue
Complexing agent and remaining sodium tripolyphosphate, the concentrate of cleaner flotation operation is final flotation concentrate, and the tailing of cleaner flotation operation returns to
Rough floatation operation；
Step 3：Rough floatation operation obtains rough floatation tailing, scans sorting operation into three sections, one section of concentrate for scanning operation returns
Rough floatation operation is returned, two sections of concentrate for scanning operation return to one section and scan operation, and three sections of concentrate for scanning operation return to two sections and sweep
It is elected to be industry, one section of tailing for scanning operation enters two sections and scans operation, and two sections of tailings for scanning operation enter three sections and scan operation,
It is final flotation tailing that three sections, which are scanned tailing,.
The present invention is further arranged to：Sodium fluoride, lauryl amine salt, dodecyl trimethyl ammonium chloride, complexing agent in step 1
Additional amount with sodium tripolyphosphate is the half of total amount.
In conclusion the invention has the advantages that：
1, the collecting ability of lauryl amine salt is stronger, but antifoaming speed is slower；And the collecting energy of dodecyl trimethyl ammonium chloride
Power is weaker, but antifoaming speed is very fast.Lauryl amine salt and dodecyl trimethyl ammonium chloride are subjected to compounding combination, to balance
Collecting ability and antifoaming speed；
2, compared to dodecylamine hydrochloride, lauryl amine acetate can reduce system acidity, to reduce the corrosion to equipment, prolong
The service life of long equipment；
3, sodium fluoride, which can adsorb and be covered on feldspathoid surface, makes its activation, to enhance lauryl amine salt and dodecyl
Absorption of the trimethyl ammonium chloride on feldspathoid surface；
4, waterglass can be adsorbed on iron mineral particle surface, enhance intergranular electrostatic repulsion, disperse fine grained；
5, it when iron ore disseminated grain size is thin, just can effectively be sorted after needing fine grinding.Meticulous ore particle is past in thickening
The problems such as slow, filtration time is long is settled toward existing.Polyacrylamide is agglomerating by fine-particle minerals particle flocculation by bridge linking effect,
The effect for accelerating fine concentrate concentration and it being prevented to be lost, improves effect of settling；
6, sodium tripolyphosphate has good defoaming capacity, so that lauryl amine salt be overcome to introduce, brought foam is tacky, flows
Property difference problem；
7, sodium humate and sodium lignin sulfonate can be improved the wetability of iron mineral, contact it with aqueous solution well, reduce
The floating probability for first contacting bubble in the process of mineral, to promote quartzy flotation；
8, complexing agent can be stablized with metal cation (absorption or that mineral surfaces the are intrinsic) generation on silicate mineral surface
Metallo-chelate be transferred to liquid phase, and it is metal cation is hidden among liquid phase, it is real to prevent the repeated contamination to mineral
Now selectively deactivate inhibiting effect.
Specific embodiment
Embodiment 1-5 is used to illustrate the component of iron ore reverse flotation medicament.The group of embodiment 1-5 iron ore reverse flotation medicament
Divide and is shown in Table 1.
The component table of table 1, embodiment 1-5 iron ore reverse flotation medicament
Note：Unit " part " refers to parts by weight；Lauryl amine salt is lauryl amine acetate；Inhibitor includes sodium humate and lignin sulfonic acid
The weight ratio of sodium, sodium humate and sodium lignin sulfonate is 1: 1.
Below in conjunction with table 1, the application method of iron ore reverse flotation medicament, i.e. iron ore flotation step is described in detail.
A kind of application method of iron ore reverse flotation medicament, includes the following steps：
Step 1：Controlled at 5-15 DEG C, iron rough concentrate is tuned into the ore pulp that weight concentration is 40-45%, pH is added in when roughing
Regulator makes slurry pH reach 11, adds inhibitor, and half sodium fluoride is then added, and waterglass and poly- third is then added
Acrylamide is eventually adding half lauryl amine salt, half dodecyl trimethyl ammonium chloride, half complexing agent and half tripolyphosphate
Sodium is sufficiently stirred rear ore pulp and is sent into flotation device, into rough floatation operation；
Step 2：Rough floatation operation obtains rough floatation concentrate, and rough floatation concentrate enters cleaner flotation operation, in cleaner flotation group job,
Remaining sodium fluoride first is added to rough floatation concentrate, adds remaining lauryl amine salt, remaining dodecyl trimethyl ammonium chloride, residue
Complexing agent and remaining sodium tripolyphosphate, the concentrate of cleaner flotation operation is final flotation concentrate, and the tailing of cleaner flotation operation returns to
Rough floatation operation；
Step 3：Rough floatation operation obtains rough floatation tailing, scans sorting operation into three sections, one section of concentrate for scanning operation returns
Rough floatation operation is returned, two sections of concentrate for scanning operation return to one section and scan operation, and three sections of concentrate for scanning operation return to two sections and sweep
It is elected to be industry, one section of tailing for scanning operation enters two sections and scans operation, and two sections of tailings for scanning operation enter three sections and scan operation,
It is final flotation tailing that three sections, which are scanned tailing,.
The application method parameter list of table 2, iron ore reverse flotation medicament
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Step 1 temperature/DEG C | 5 | 10 | 7 | 13 | 15 |
| Step 1 pulp density/% | 45 | 42 | 43 | 44 | 40 |
Comparative example 1
Select the embodiment 2 as a comparison case 1 of the Chinese patent of Publication No. CN103495506A.Wherein, the temperature of flotation operation
Spending whole-process control is 10 DEG C.
Float test
Iron taste is subjected to flotation according to the step of embodiment 1-5 and comparative example 1 respectively for 44.35% raw ore, it is corresponding floating
Index is selected to be shown in Table 3.
Table 3, embodiment 1-5 and 1 floatation indicators of comparative example compare record sheet
As known from Table 3, the taste of concentrate iron and iron yield that embodiment 1-5 is obtained are above comparative example 1, and tailing iron is sampled and iron
Yield is below comparative example 1.It can be seen that iron ore reverse flotation medicament of the invention to valuable mineral and gangue mineral have compared with
High separation selectivity.
Comparative example 2
Comparative example 2 the difference from example 2 is that, remove sodium tripolyphosphate, other are same as Example 2.
Comparative example 3
Comparative example 3 the difference from example 2 is that, remove complexing agent, other are same as Example 2.
Comparative example 4
Comparative example 4 the difference from example 2 is that, while removing sodium tripolyphosphate and complexing agent, other with 2 phase of embodiment
Together.
Embodiment 2 and comparative example 2-4 are tested referring to float test, the floatation indicators that test obtains are recorded in table
4。
Table 4, embodiment 2 and comparative example 2-4 floatation indicators compare record sheet
It can obtain from table 4 to draw a conclusion：
Embodiment 2 is superior to comparative example 2 and 3 in the taste of concentrate iron and iron yield and the indexs such as the taste of tailing iron and iron yield.
Comparative example 4 is inferior to comparative example 2 in the taste of concentrate iron and iron yield and the indexs such as the taste of tailing iron and iron yield,
But it is approximate with comparative example 3.It can be seen that complexing agent is able to ascend the separation selectivity to valuable mineral and gangue mineral, and three
Polyphosphate sodium influences the separation selectivity of valuable mineral and gangue mineral smaller.But complexing agent and sodium tripolyphosphate compounding
It is respectively single to be greater than complexing agent and sodium tripolyphosphate using the raising degree for the separation selectivity for leading to valuable mineral and gangue mineral
Solely using leads to the sum of raising degree of separation selectivity of valuable mineral and gangue mineral.Therefore, complexing agent and tripolyphosphate
Sodium can generate complex role in the present invention, improve the separation selectivity of valuable mineral and gangue mineral.
The present embodiment is only explanation of the invention, is not limitation of the present invention, and those skilled in the art exist
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in the present invention
Scope of the claims in all by the protection of Patent Law.
Claims (8)
1. a kind of iron ore reverse flotation medicament, it is characterized in that：Component including following parts by weight：
50-60 parts of lauryl amine salt
40-50 parts of dodecyl trimethyl ammonium chloride
10-15 parts of sodium fluoride
10-15 parts of waterglass
10-15 parts of polyacrylamide
15-20 parts of sodium tripolyphosphate
10-20 parts of inhibitor
3-5 parts of pH regulator.
2. iron ore reverse flotation medicament according to claim 1, it is characterized in that：It further include complexing agent 20- according to parts by weight
25 parts.
3. iron ore reverse flotation medicament according to claim 2, it is characterized in that：The complexing agent selects sodium tartrate, grass
One of sour sodium, sodium citrate and EDETATE SODIUM.
4. iron ore reverse flotation medicament according to claim 3, it is characterized in that：The lauryl amine salt is lauryl amine acetic acid
Salt.
5. iron ore reverse flotation medicament according to claim 3, it is characterized in that：The inhibitor includes sodium humate and wood
The weight ratio of quality sodium sulfonate, the sodium humate and sodium lignin sulfonate is 1:1.
6. iron ore reverse flotation medicament according to claim 3, it is characterized in that：The pH regulator select sodium hydroxide or
Person's sodium carbonate.
7. a kind of application method of iron ore reverse flotation medicament as claimed in claim 3, it is characterized in that：Include the following steps：
Step 1：Controlled at 5-15 DEG C, iron rough concentrate is tuned into the ore pulp that weight concentration is 40-45%, pH is added in when roughing
Regulator makes slurry pH reach 11, adds inhibitor, and partially fluorinated sodium is then added, and waterglass and poly- third is then added
Acrylamide is eventually adding part lauryl amine salt, part dodecyl trimethyl ammonium chloride, part complexing agent and part tripolyphosphate
Sodium is sufficiently stirred rear ore pulp and is sent into flotation device, into rough floatation operation；
Step 2：Rough floatation operation obtains rough floatation concentrate, and rough floatation concentrate enters cleaner flotation operation, in cleaner flotation group job,
Remaining sodium fluoride first is added to rough floatation concentrate, adds remaining lauryl amine salt, remaining dodecyl trimethyl ammonium chloride, residue
Complexing agent and remaining sodium tripolyphosphate, the concentrate of cleaner flotation operation is final flotation concentrate, and the tailing of cleaner flotation operation returns to
Rough floatation operation；
Step 3：Rough floatation operation obtains rough floatation tailing, scans sorting operation into three sections, one section of concentrate for scanning operation returns
Rough floatation operation is returned, two sections of concentrate for scanning operation return to one section and scan operation, and three sections of concentrate for scanning operation return to two sections and sweep
It is elected to be industry, one section of tailing for scanning operation enters two sections and scans operation, and two sections of tailings for scanning operation enter three sections and scan operation,
It is final flotation tailing that three sections, which are scanned tailing,.
8. the application method of iron ore reverse flotation medicament according to claim 7, it is characterized in that：Sodium fluoride, ten in step 1
Diamine salts, dodecyl trimethyl ammonium chloride, the half that the additional amount of complexing agent and sodium tripolyphosphate is total amount.
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| CN116727109B (en) * | 2023-07-20 | 2025-10-31 | 安徽工业大学 | Method for separating iron-containing silicate gangue minerals by reverse flotation of chelating collector |
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