CN106269262B - A kind of method of microfine Rare Earth Mine carrier flotation - Google Patents
A kind of method of microfine Rare Earth Mine carrier flotation Download PDFInfo
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- CN106269262B CN106269262B CN201610647642.XA CN201610647642A CN106269262B CN 106269262 B CN106269262 B CN 106269262B CN 201610647642 A CN201610647642 A CN 201610647642A CN 106269262 B CN106269262 B CN 106269262B
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- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 64
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 64
- 238000005188 flotation Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 34
- 239000011707 mineral Substances 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000012141 concentrate Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000010802 sludge Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 5
- 239000003112 inhibitor Substances 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 10
- IKNAJTLCCWPIQD-UHFFFAOYSA-K cerium(3+);lanthanum(3+);neodymium(3+);oxygen(2-);phosphate Chemical compound [O-2].[La+3].[Ce+3].[Nd+3].[O-]P([O-])([O-])=O IKNAJTLCCWPIQD-UHFFFAOYSA-K 0.000 claims description 10
- 229910052590 monazite Inorganic materials 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 10
- 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 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- PGKQTZHDCHKDQK-VOTSOKGWSA-N [(e)-2-phenylethenyl]phosphonic acid Chemical compound OP(O)(=O)\C=C\C1=CC=CC=C1 PGKQTZHDCHKDQK-VOTSOKGWSA-N 0.000 claims description 5
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 4
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 4
- 229920002907 Guar gum Polymers 0.000 claims description 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 3
- 239000000665 guar gum Substances 0.000 claims description 3
- 235000010417 guar gum Nutrition 0.000 claims description 3
- 229960002154 guar gum Drugs 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 230000001629 suppression Effects 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000007667 floating Methods 0.000 abstract description 3
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 6
- 241001274660 Modulus Species 0.000 description 6
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 6
- 235000020778 linoleic acid Nutrition 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000010428 baryte Substances 0.000 description 4
- 229910052601 baryte Inorganic materials 0.000 description 4
- 235000021321 essential mineral Nutrition 0.000 description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010436 fluorite Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 description 2
- 229910052639 augite Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 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 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 244000007835 Cyamopsis tetragonoloba Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 229910052652 orthoclase Inorganic materials 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 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
-
- 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
-
- 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
-
- 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
Abstract
A kind of method of microfine Rare Earth Mine carrier flotation, it is characterised in that comprise the steps of：1. 20 μm of microfine Rare Earth Mines to be removed to 5 μm of sludge, the microfine Rare Earth Mine of 20 μm+5 μm of grade is obtained, water is added to size mixing to concentration 30% ~ 40%, adds regulator, controls pH values of pulp 8 ~ 10, stirs 15min ~ 20min；2. water is added to size mixing to concentration 40% ~ 50% carrier mineral, collecting agent and regulator are added, controls pH values of pulp 8 ~ 10, stirs 5min ~ 10min；3. in mass ratio 1:4, the above-mentioned carrier mineral sized mixing and microfine Rare Earth Mine are mixed, is heated to 40 DEG C ~ 60 DEG C, adds in inhibitor and collecting agent, stirs 40min ~ 70min；4. 3. ore pulp that flotation step mixes obtains flotation concentrate and flotation tailing.The method of the present invention has the characteristics that the rate of recovery that technological process is simple, flotation speed is fast, floating agent dosage is low, significantly improves microfine rare-earth mineral, green clean, are adaptable.
Description
Technical field
The present invention relates to a kind of beneficiation method, more particularly to a kind of method of microfine Rare Earth Mine carrier flotation.
Background technology
Rare earth is well-known already as extremely important strategic resource, has the laudatory title of " industrial vitamin ", extensively should
For the various tradition such as electrotechnical, electronic, aerospace, petrochemical industry, environmental protection, agricultural and field of novel.Research data table
It is bright, global rare earth oxide in 2011（REO）Demand be 10.5 ten thousand tons；The rare earth total amount consumed in the estimated whole world in 2016 will
Reach 160,000 tons；The year two thousand twenty prediction whole world REO demands are up to 26.4 ten thousand tons, it can be seen that, rare earth is in the coming years even number
10 years all will be a flourishing industry, and growth momentum will cater to industry 4.0 and " made in China under new millennium historical background
2025 " and it is swift and violent forward.
In the world famous large-scale light rare earth mineral deposit mainly have Chinese baiyunebo concentrate, sichuan yak level ground Rare Earth Mine,
Shandong Weishan Rare Earth Mine, U.S. awns court of a feudal ruler Paasche Rare Earth Mine, Australia's Wei Erde Rare Earth Mines and Tanzania's Ngualla Rare Earth Mines
Deng.Part mineral deposit Weathering And Leaching is serious, and rare-earth mineral disseminated grain size is fine, and intergrowth mineral species are more, and property is complicated, sludge
Content is high, and sorting difficulty is big.It can also be generated since having the characteristics that property of rare-earth mineral is crisp frangible, in assorting room substantial amounts of fine
Grain and secondary slime further increase the difficulty of ore dressing.
Microfine ore particle has the characteristics that large specific surface area, surface can be high, than relatively evenly hovering in ore pulp, in ore pulp
Momentum is low during convection, inertia is small, and small, magnetic separation and gravity separation technology processing microfine Rare Earth Mine are influenced by magnetic field and gravitational field
It is difficult to reach preferable separating effect, it is recycling that carrier flotation or chemical mineral processing are used under the conditions of current technique of preparing
The effective technique of microfine Rare Earth Mine.Leaching and roasting-leaching in chemical mineral processing technique can obtain preferable technique
Index, but again it is made to lose economy the shortcomings that chemical mineral processing height consumption high pollution.
The technical barrier that microfine ore is difficult to sort causes the concern of many scholars, and has made more experimental study
Work.Carrier flotation technology is to do carrier using the ore particle of general flotation grade, is selectively adhered to the mineral of microfine
On carrier and it is allowed to the method to float together.Its way is to add carrier into fine- disseminated ore slurry system, makes fine-particle minerals attached
It on carrier, forms the preferable agglomerate of floatability, recycled agglomerate by flotation, so as to recycle difficult floating fine- disseminated ore
Object.Forefathers have the research of the carrier flotations such as fine ilmenite, bloodstone and cassiterite, and the carrier of microfine light rare earth mineral floats
Choosing but has no document report.
Qiu Guanzhou（Hematite carrier flotation mechanism study,《Non-ferrous metal》, 1994（11）, 23-28）Have studied-
5 μm of grade bloodstone carrier flotation basic acts propose that there is coarse fraction bloodstone the carrier for bearing Fine Hematite Ore floating to make
With coarse grain helps solidifying and intermediary-splitting action that particulate is made to form more intermediate grade aggregation, increases floating for particulate
Property.
Zhuyang dagger-axe（The autogenous carrier flotation of Micro-fine Ilmenite,《China YouSe Acta Metallurgica Sinica》, 2009（3）, 554-560）It grinds
Studied carefully in -20 μm of Micro-fine Ilmenite flotation from carrier function and mechanism, propose that -100 μm of+20 μm of grade ilmenites can conduct
Carrier, it is good from carrier function performance when carrier adding proportion is more than 50%, and in -20 μm of difficult ferrotianiums of grade Panzhihua
It is verified in the actual ore of ore deposit, the rate of recovery is increased to 61.96% by 52.56%.
Li Fangji（Particulate RE mineral floating is studied,《Shanghai second Industry Univ's journal》, 2000（2）, 1-7）Emphasis is ground
Desliming device and collecting agent new formulation are studied carefully, in technological parameter pH8.0 ~ 8.5, concentration 28% ~ 30%, 36 DEG C ~ 40 DEG C of temperature turns
1440 revs/min of speed, -180 μm of+28 μm of occupation rates 89.00% of sand setting grain size under the conditions of REO 3.11% ~ 9.52%, can obtain concentrate
REO 65% ~ 70%, the index of operation recovery 85% ~ 90%.The flotation referred in document to ore deposit actually -28 μm only account for 11% it is de-
Mud sand setting, most mineral grains stir the conventional rotating speed for falling within flotation in effective size fraction ranges of flotation,
It can be seen that the recycling of p- 20 μm of microfines is not its research emphasis.
In conclusion not p- 20 μm of microfine rare-earth minerals are pointedly studied in document, it is equal in common process
When being difficult to obtain ideal indicator, carrier flotation is one of effective ways that microfine Rare Earth Mine sorts.
The content of the invention
It is an object of the invention to provide a kind of method of microfine Rare Earth Mine carrier flotation, which has technological process letter
It is single, flotation speed is fast, floating agent dosage is low, the rate of recovery that significantly improves microfine rare-earth mineral, green cleaning, adaptable
The features such as.
The beneficiation method of the present invention comprises the steps of：
1. -20 μm of microfine Rare Earth Mines are carried out desliming process, the sludge of -5 μm of removing obtains -20 μm+5 μm of grade
Microfine Rare Earth Mine adds water to size mixing to concentration 30% ~ 40%, adds regulator, controls pH values of pulp 8 ~ 10, rotating speed 1000r/min ~
Under conditions of 2500r/min, 15min ~ 20min is stirred；
2. water is added to size mixing to concentration 40% ~ 50% carrier mineral, collecting agent and regulator are added, controls pH values of pulp 8 ~ 10,
Under conditions of rotating speed 1500r/min ~ 2000r/min, 5min ~ 10min is stirred；
3. in mass ratio 1:4, the above-mentioned carrier mineral sized mixing and microfine Rare Earth Mine are mixed, is heated to temperature 40 DEG C ~ 60
DEG C, inhibitor and collecting agent are added in, under conditions of speed of agitator 2000r/min ~ 3000r/min, mixing time 40min ~
70min；
4. 3. ore pulp that flotation step mixes obtains flotation concentrate and flotation tailing.
Step 3. preferred 45 DEG C ~ 50 DEG C of heating temperature；Speed of agitator 2500r/min ~ 2800r/min；Mixing time
50min~60min。
The carrier mineral is bastnaesite or monazite, and REO grades are more than 60%, and grade is -43 μm+30 μm.
The collecting agent is one or more kinds of in linoleic acid sodium, styryl phosphonic acid or alkyl hydroximic acid.
The regulator is the waterglass of modulus 2.3 ~ 2.8.
The inhibitor is more than one or both of sodium lignin sulfonate, hydroxyethyl cellulose or guar gum.
It is an advantage of the invention that：
1. carrier mineral, which is sized mixing, can strengthen the adhesion effect of microfine, favourable to improving the rate of recovery；2. mixed carrier mineral
With the heating long-time strong mixing after microfine Rare Earth Mine microfine Rare Earth Mine can be made to obtain the kinetic energy of bigger, it is dilute to increase microfine
The probability of collision probability and breakthrough energy barrier between Tu Kuang and carrier mineral, improves carrier mineral and bears microfine Rare Earth Mine
Efficiency, and the absorption of clay minerals is reduced, so as to improve microfine rare earth ore concentrate grade；3. technological process is brief, operation letter
It is single, the technic indexs such as ideal concentrate grade, the rate of recovery can be obtained, realize effective recycling that resource is difficult to be utilized.
Specific embodiment
In order to be better understood from the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to embodiment.
Embodiment 1
Chinese somewhere Rare Earth Mine is selected, essential mineral composition is bastnaesite, orthoclase, quartz, barite, fluorite and side
Xie Shi etc..- 20 μm of microfine Rare Earth Mines are obtained, the sludge of -5 μm of removing obtains -20 μm+5 μm of microfine Rare Earth Mine, REO product
Position is 2.40%.Microfine Rare Earth Mine is placed in agitator, water is added to size mixing to concentration 35%, based on raw ore per ton, addition 1000
Gram modulus is 2.4 waterglass, controls pH values of pulp 8, under conditions of rotating speed 1500r/min, is stirred spare after 15min.It selects
REO grades 65%, the bastnaesite that grade is -43 μm+30 μm is carrier mineral, and in agitator plus water is sized mixing to concentration 45%,
Based on raw ore per ton, 500 gram masses of addition are than 1:5:10 linoleic acid sodium:Styryl phosphonic acid:Alkyl hydroximic acid and 1000 grams of moulds
Number for 2.4 waterglass, control pH values of pulp 8.5, rotating speed 1600r/min, stir 10min after, in mass ratio 1:4, mixing is above-mentioned
The carrier mineral and microfine Rare Earth Mine sized mixing heat 46 DEG C, based on raw ore per ton, add in 1500 grams of sodium lignin sulfonates, then
1000 gram masses are added in than 1:5:10 linoleic acid sodium:Styryl phosphonic acid:Alkyl hydroximic acid, rotating speed 2500r/min, stirring
After 50min, flotation in flotation device is transferred to, obtains flotation concentrate and flotation tailing.Flotation concentrate REO grades are 62.48%, are returned
Yield reaches 86.42%.
Embodiment 2
Chinese somewhere Rare Earth Mine is selected, essential mineral composition is monazite, aegirine-augite, feldspar, quartz, barite, fluorite
With calcite etc..- 20 μm of microfine Rare Earth Mines are obtained, the sludge of -5 μm of removing obtains -20 μm+5 μm of microfine Rare Earth Mine,
REO grades are 1.59%.Microfine Rare Earth Mine is placed in agitator, water is added to size mixing to concentration 30%, based on raw ore per ton, addition
The waterglass that 1000 grams of moduluses are 2.6, controls pH values of pulp 9, spare after stirring 18min under conditions of rotating speed 2000r/min.
REO grades 60% are selected, the monazite that grade is -43 μm+30 μm is carrier, and in agitator plus water is sized mixing to concentration 50%, is added
Add based on raw ore per ton, 800 gram masses of addition are than 1:6 linoleic acid sodium:The water glass that alkyl hydroximic acid and 1000 grams of moduluses are 2.6
Glass, control pH values of pulp 9, rotating speed 1800r/min, after stirring 8min, in mass ratio 1:4, mix the above-mentioned carrier mineral sized mixing and
Microfine Rare Earth Mine heats 50 DEG C, based on raw ore per ton, adds 200 grams of guar gums, 800 gram masses of addition are than 1:6 Asia oil
Sour sodium:Alkyl hydroximic acid, rotating speed 2600r/min after stirring 55min, are transferred to flotation in flotation device, obtain flotation concentrate and
Flotation tailing.Flotation concentrate REO grades are 61.14%, and the rate of recovery reaches 80.59%.
Embodiment 3
Select Chinese somewhere Rare Earth Mine, essential mineral composition is bastnaesite, monazite, aegirine-augite, hornblend, feldspar,
Barite, apatite and calcite etc., the mass fraction ratio bastnaesite of RARE EARTH MINERALS IN:Monazite is 7:3.Obtain-
20 μm of microfine Rare Earth Mines, the sludge of -5 μm of removing obtain -20 μm+5 μm of microfine Rare Earth Mine, and REO grades are 2.96%.It will
Microfine Rare Earth Mine is placed in agitator, and water is added to size mixing to concentration 38%, and based on raw ore per ton, it is 2.8 to add 1000 grams of moduluses
Waterglass controls pH values of pulp 10, spare after stirring 20min under conditions of rotating speed 2000r/min.Select REO grades 64%, grain
Grade is -43 μm+30 μm of bastnaesite:Monazite mass ratio is 7:3 carrier mineral, in agitator plus water is sized mixing to concentration
50%, it adds based on raw ore per ton, adds the waterglass that 1500 grams of alkyl hydroximic acids and 1000 grams of moduluses are 2.8, control ore pulp
PH8.5, rotating speed 1600r/min, after stirring 8min, in mass ratio 1:4, mix the above-mentioned carrier mineral sized mixing and microfine rare earth
Ore deposit heats 47 DEG C, based on raw ore per ton, adds 900 grams of hydroxyethyl celluloses, adds 1500 grams of alkyl hydroximic acids, rotating speed
2750r/min after stirring 55min, is transferred to flotation in flotation device, obtains flotation concentrate and flotation tailing.Flotation concentrate REO product
Position is 66.84%, and the rate of recovery reaches 90.01%.
Embodiment 4
Chinese somewhere rare earth sample ore is selected, essential mineral composition is bastnaesite, monazite, potassium feldspar, osannite, cloud
Mother, barite, fluorite and dolomite etc., the mass fraction ratio bastnaesite of RARE EARTH MINERALS IN:Monazite is 3:7.Obtain-
20 μm of microfine Rare Earth Mines, the sludge of -5 μm of removing obtain -20 μm+5 μm of microfine Rare Earth Mine, and REO grades are 2.38%.It will
Microfine Rare Earth Mine is placed in agitator, and water is added to size mixing to concentration 40%, and based on raw ore per ton, it is 2.7 to add 1000 grams of moduluses
Waterglass controls pH values of pulp 9.5, spare after stirring 20min under conditions of rotating speed 2500r/min.REO grades 62% are selected,
Grade is -43 μm+30 μm of bastnaesite:Monazite mass ratio is 3:7 carrier mineral, in agitator plus water is sized mixing to dense
Degree 50%, based on raw ore per ton, 1000 gram masses of addition are than 1:7:3 linoleic acid sodium:Styryl phosphonic acid:Alkyl hydroximic acid and
The waterglass that 1000 grams of moduluses are 2.7, control pH values of pulp 8.5, rotating speed 2000r/min, after stirring 8min, in mass ratio 1:4, it mixes
It closes and states the carrier mineral sized mixing and microfine Rare Earth Mine, heat 50 DEG C, based on raw ore per ton, add in 200 gram masses than 3:2:1
Sodium lignin sulfonate:Hydroxyethyl cellulose:Guar gum, then 1000 gram masses are added than 1:7:3 linoleic acid sodium:Styrene phosphine
Acid:Alkyl hydroximic acid stirs, rotating speed 2780r/min, after stirring 56min, is transferred to flotation in flotation device, obtains flotation concentrate
And flotation tailing.Flotation concentrate REO grades are 68.39%, and the rate of recovery reaches 88.29%.
Claims (8)
- A kind of 1. method of microfine Rare Earth Mine carrier flotation, it is characterised in that comprise the steps of：1. -20 μm of microfine Rare Earth Mines are carried out desliming process, the sludge of -5 μm of removing obtains the fine of -20 μm+5 μm of grade Grain Rare Earth Mine, adds water to size mixing to concentration 30% ~ 40%, adds regulator, controls pH values of pulp 8 ~ 10, rotating speed 1000r/min ~ Under conditions of 2500r/min, 15min ~ 20min is stirred；2. water is added to size mixing to concentration 40% ~ 50% carrier mineral, collecting agent and regulator are added, controls pH values of pulp 8 ~ 10, is being turned Under conditions of fast 1500r/min ~ 2000r/min, 5min ~ 10min is stirred；3. in mass ratio 1:4, the above-mentioned carrier mineral sized mixing and microfine Rare Earth Mine are mixed, is heated to 40 DEG C ~ 60 DEG C, adds in suppression Preparation and collecting agent under conditions of rotating speed is 2000r/min ~ 3000r/min, stir 40min ~ 70min；4. 3. ore pulp that flotation step mixes obtains flotation concentrate and flotation tailing.
- 2. the method for microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that the carrier mineral is Bastnaesite or monazite, REO grades are more than 60%, and grade is -43 μm+30 μm.
- 3. the method for a kind of microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that step is 3. described It is heated to 45 DEG C ~ 50 DEG C.
- 4. the method for a kind of microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that step is 3. described Speed of agitator is 2500r/min ~ 2800r/min.
- 5. the method for a kind of microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that step is 3. described Mixing time is 50min ~ 60min.
- 6. the method for microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that the collecting agent is Asia It is one or more in enuatrol, styryl phosphonic acid or alkyl hydroximic acid.
- 7. the method for microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that the regulator is mould The waterglass of number 2.3 ~ 2.8.
- 8. the method for microfine Rare Earth Mine carrier flotation according to claim 1, it is characterised in that the inhibitor is wood One or more in quality sodium sulfonate, hydroxyethyl cellulose or guar gum.
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| CN107890956A (en) * | 2017-12-05 | 2018-04-10 | 昆明冶金研究院 | A kind of method of microfine copper mine carrier flotation |
| CN110449256A (en) * | 2019-07-31 | 2019-11-15 | 中国恩菲工程技术有限公司 | The beneficiation method of bastnaesite |
| CN110508402B (en) * | 2019-09-16 | 2021-08-24 | 中国地质科学院矿产综合利用研究所 | Low-temperature-resistant double-acid-salt rare earth ore flotation collector and preparation method and application thereof |
| CN110935556B (en) * | 2019-11-19 | 2020-09-04 | 长安大学 | Flotation recovery method for ultrafine-grained cassiterite |
| CN112474064B (en) * | 2020-10-23 | 2022-06-24 | 核工业北京化工冶金研究院 | Compound collecting agent and application thereof in complex rare earth ore flotation |
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Application publication date: 20170104 Assignee: MEIZHOU HUALIFENG INDUSTRIAL CO.,LTD. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980040847 Denomination of invention: A Method for Flotation of Fine Rare Earth Ore Carrier Granted publication date: 20180522 License type: Common License Record date: 20230830 |
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Application publication date: 20170104 Assignee: Huizhou qingleyuan Intelligent Technology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980042093 Denomination of invention: A Method for Flotation of Fine Rare Earth Ore Carrier Granted publication date: 20180522 License type: Common License Record date: 20230919 Application publication date: 20170104 Assignee: Foshan chopsticks Technology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980042085 Denomination of invention: A Method for Flotation of Fine Rare Earth Ore Carrier Granted publication date: 20180522 License type: Common License Record date: 20230919 Application publication date: 20170104 Assignee: Foshan WanChen Technology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980042067 Denomination of invention: A Method for Flotation of Fine Rare Earth Ore Carrier Granted publication date: 20180522 License type: Common License Record date: 20230919 Application publication date: 20170104 Assignee: Dongguan Linxi Intelligent Technology Co.,Ltd. Assignor: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Contract record no.: X2023980042095 Denomination of invention: A Method for Flotation of Fine Rare Earth Ore Carrier Granted publication date: 20180522 License type: Common License Record date: 20230919 |
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