CN102500465A - Benefication method for bastnaesite - Google Patents
Benefication method for bastnaesite Download PDFInfo
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- CN102500465A CN102500465A CN2011103737124A CN201110373712A CN102500465A CN 102500465 A CN102500465 A CN 102500465A CN 2011103737124 A CN2011103737124 A CN 2011103737124A CN 201110373712 A CN201110373712 A CN 201110373712A CN 102500465 A CN102500465 A CN 102500465A
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- magnetic separation
- mine tailing
- bastnaesite
- flotation
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000012141 concentrate Substances 0.000 claims abstract description 124
- 238000007885 magnetic separation Methods 0.000 claims abstract description 63
- 238000005188 flotation Methods 0.000 claims abstract description 53
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 54
- 238000004140 cleaning Methods 0.000 claims description 35
- 238000010926 purge Methods 0.000 claims description 30
- 229910052684 Cerium Inorganic materials 0.000 claims description 21
- 239000002516 radical scavenger Substances 0.000 claims description 20
- 239000004088 foaming agent Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 240000000203 Salix gracilistyla Species 0.000 claims description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 238000011282 treatment Methods 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 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 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 53
- 150000002910 rare earth metals Chemical class 0.000 abstract description 53
- 238000011084 recovery Methods 0.000 abstract description 30
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 7
- 239000011707 mineral Substances 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 229910001404 rare earth metal oxide Inorganic materials 0.000 abstract 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- 229910052641 aegirine Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 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 1
- 229910052626 biotite Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- -1 coronadite Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 235000019580 granularity Nutrition 0.000 description 1
- 229910052888 grunerite Inorganic materials 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- 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 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 229910052652 orthoclase Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010334 sieve classification Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a benefication method for bastnaesite. The benefication method for the bastnaesite is characterized by comprising the following steps: grinding and classifying the raw ore; performing magnetic separation to obtain magnetic concentrates and tailings; performing gravity separation on each grade of strong magnetic concentrate by using a table concentrator respectively to obtain table concentrates, table middlings and table tailings; combining each grade of table concentrate and table middling and performing high-gradient magnetic separation to obtain magnetic bastnaesite concentrates and magnetic middlings; combining the magnetic middlings and the table tailings; grinding the ores; performing closed-circuit flotation comprising one-time rough concentration, three-time scavenging and three-time concentration; and returning the middlings sequentially to obtain flotation bastnaesite concentrates and flotation tailings. The magnetic bastnaesite concentrates and the flotation bastnaesite concentrates are rare-earth total concentrates; the rare earth oxide (REO) grade of the rare earth is more than 65 percent; and the total recovery rate reaches 75 to 86 percent. According to the benefication method for the bastnaesite, fully-wet non-dust operation is adopted; separation efficiency is high; occupied area is small; production is performed continuously; flotation is performed at normal temperature; and environmental pollution is avoided. The benefication method for the bastnaesite is applicable to benefication of light rare earth minerals existing in the form of the bastnaesite.
Description
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Technical field
The present invention relates to a kind of beneficiation method, particularly a kind of beneficiation method of bastnaesite.
Background technology
Bastnaesite is one of main light rare earth mineral.It all is single bastnaesite mineral deposit that Rare Earth Mine difficult to understand, Turkey Bei Yili Frank Cuhel Rare Earth Mine and Chinese Sichuan maoniuping rare-earth mineral, the big syneclise Rare Earth Mine in Dechang, Sichuan and Weishan, Shandong Rare Earth Mine etc. are all clung to by the awns court of a feudal ruler Paasche Rare Earth Mine of the U.S., Vietnam, and rare earth REO grade is 1 ~ 14%.At present, handle the main method that reclaims bastnaesite and comprise gravity treatment, magnetic separation, flotation and integrated processes thereof.
Pradip and D.W.Fuerstenau (The Role of Inorganic and Organic Reagents in the Flotation Separation of Rare-Earth Ores; " International Journal of Mineral Processing; " Vol.32,1-22 (1991)) a kind of bastnaesite method for floating proposed, promptly to be 7% raw ore ore ore grinding account for 80% to fineness-0.15mm to rare earth REO grade; Under 90 ℃ of temperature, size mixing for six times; Add adjustment agent sodium carbonate, prodan, ammonium lignin sulfonate successively, the collecting agent tall oil is to carry out flotation operation under 8.8 conditions at pH.Through roughly selecting, four selected closed circuit flow processs have finally obtained average rare earth REO grade 60 ~ 63%, the fluoro-carbon-cerium ore concentrate of overall recovery 65 ~ 70%.The flotation collector selectivity that this method is used is relatively poor, in order to strengthen selectivity, needs at high temperature to size mixing for a long time processing, and not only method flow is long, and energy consumption cost is high.
Disclose a kind of rare-earth mineral coarse and fine separation method among the Chinese patent publication number CN1403203: the raw ore ore grinding accounts for 60 ~ 95% to-0.15mm, sends into table concentration, sub-elects coarse grain bastnaesite concentrate, shaking table chats and shaking table mine tailing.The shaking table chats carries out dry type magnetic separation through oven dry or after drying, and obtaining three kinds of products is middle grain bastnaesite concentrate, magnetic tailing and iron mineral.Magnetic tailing and shaking table mine tailing merging carrying out sieve classification; Remove the coarse grain gangue, intergrowth chats secondary grinding is accounted for 75 ~ 85% to-0.074mm, ore pulp and undersize merging carrying out selectivity desliming after levigate; Sand setting after the desliming is under 30 ~ 50 ℃ of conditions in temperature; Add successively and give ore deposit 0.4 ~ 1.8kg waterglass per ton relatively, 0.8 ~ 3kg hydroximic acid collecting agent, 30 ~ 300g supplementary catching agent and 20 ~ 150g foaming agent carry out flotation.Flotation obtains flotation concentrate and two kinds of products of flotation tailing.The final comprehensive rare earth REO of rare earth ore concentrate grade is greater than 62%, rare earth overall recovery 80 ~ 85%.This method can obtain the rare earth ore concentrate than the high-grade and the rate of recovery in the laboratory; But in large-scale production, exist the roughing table floor space big; Batch (-type) oven dry sample ore and dry type magnetic separation dust pollution are big, the flotation shortcomings such as processing, production management inconvenience of need heating.
Xiong Shuqing (the heavily floating beneficiation combined method experimental study of somewhere, Sichuan Rare Earth Mine, " mineral products comprehensive utilization ", 2002 (5), 3-6) gravity treatment-flotation combined method has been proposed.Ore gets into the gravity table operation through after ore grinding-classification-cyclone desliming, obtains table concentrate, shaking table chats and shaking table mine tailing.Ore grinding after, handle once more by flotation for the shaking table chats.Finally obtained the comprehensive rare earth REO of rare earth ore concentrate grade 61.18%, the index of overall recovery 75.74%.This method adopts shaking table as the gravity treatment roughing separation equipment equally, and area of mill site is big, operation inconvenience, and also the sludge middle rare earth content that removes is high, and loss is big, causes overall recovery on the low side.
Summary of the invention
The object of the present invention is to provide a kind of beneficiation method of bastnaesite, adopt that a kind of flow process is simple, occupation area of equipment is little, production is continuous, the method for no dust work, easy to operate, the flotation of need not heating, realize the recovery of bastnaesite.
Beneficiation method of the present invention is made up of following steps:
1. grind grading: the tcrude ore ore grinding is to-1.0mm, be classified as-1.0+0.4mm ,-0.4+0.074mm and-three grades of 0.074mm;
2. raw ore magnetic separation: be magnetic separation under the condition of 1.0T in the background magnetic field field intensity, obtain high intensity magnetic separation concentrate and high intensity magnetic separation mine tailing;
3. gravity treatment: each grade high intensity magnetic separation concentrate carries out table concentration respectively, obtains table concentrate, shaking table chats and shaking table mine tailing;
4. table concentrate and chats magnetic separation: merging each grade table concentrate and shaking table chats, is Wet-type high gradient magnetic separation under 0.5 ~ 0.8T condition in specified background field intensity, obtains magnetic separation fluoro-carbon-cerium ore concentrate and magnetic separation chats;
5. magnetic separation chats and the flotation of shaking table mine tailing: merge magnetic separation chats and shaking table mine tailing; Ore grinding accounts for 50 ~ 75% to-0.043mm again, and pulp density is 25 ~ 35%, by raw ore per ton; Adding 1000 ~ 3000 gram adjustment agent successively sizes mixing; 3000 ~ 5000 gram collecting agents and No. 2 oil of 10 ~ 100 gram foaming agents carry out roughing flotation, obtain to roughly select concentrate and rougher tailings;
The rougher tailings pulp density is 20 ~ 35%, and adding 1000 ~ 1500 gram collecting agents, No. 2 oil of 5 ~ 40 gram foaming agents carry out once purging selection, obtain once purging selection concentrate and once purging selection mine tailing, and the once purging selection concentrate is back to the roughing flotation operation and forms closed cycle;
Once purging selection mine tailing pulp density is 20 ~ 35%, and adding 400 ~ 800 gram collecting agents carry out secondary and scan; Obtain secondary scavenger concentrate and secondary and scan mine tailing, the secondary scavenger concentrate is back to the once purging selection operation and forms closed cycle;
It is 20 ~ 35% that secondary is scanned the mine tailing pulp density, adds 200 ~ 500 gram collecting agents and carries out three times and scans, and obtains three scavenger concentrates and flotation tailing, and three scavenger concentrates are back to secondary and scan operation formation closed cycle;
Roughly selecting concentrate pulp concentration is 10 ~ 30%, adds 400 ~ 1000 gram adjustment agent and carries out primary cleaning; Obtain primary cleaning concentrate and primary cleaner tailing, primary cleaner tailing is back to roughing flotation operation shape
Become closed cycle;
Primary cleaning concentrate pulp concentration is 10 ~ 25%, adds 200 ~ 800 gram adjustment agent and carries out recleaning; Obtain recleaning concentrate and recleaning mine tailing, the recleaning mine tailing is back to the primary cleaning operation and forms closed cycle;
Recleaning concentrate pulp concentration is 5 ~ 20%, adds 100 ~ 400 gram adjustment agent and carries out triple cleaning, obtains flotation fluoro-carbon-cerium ore concentrate and triple cleaning mine tailing, and the triple cleaning mine tailing is back to the recleaning operation and forms closed cycle.Magnetic separation fluoro-carbon-cerium ore concentrate and flotation fluoro-carbon-cerium ore concentrate are the total concentrate of rare earth, and rare earth REO grade is greater than 65%, and overall recovery reaches 75 ~ 86%.
Said adjustment agent is one or more in sodium carbonate, waterglass, aluminum sulfate or the calgon.
Said collecting agent is one or more in enuatrol, oxidized paraffin wax soap, bigcatkin willow hydroximic acid ammonium, bigcatkin willow hydroximic acid, benzene first hydroximic acid or the alkylhydroxamic acid.
Advantage of the present invention is: 1. the high gradient wet high-intensity magnetic separation has realized throwing the double action of tail and desliming, has reduced the mine-supplying quantity of subsequent job, has also created the interference that good environment, particularly flotation operation have been got rid of sludge for subsequent job; 2. high intensity magnetic separation equipment is as roughing separation equipment, and floor space is little, saves the space; 3. dust pollution and the discontinuous problem of production that dry type magnetic separation brings have been eradicated in wet full magnetic separation; 4. can obtain two kinds of varigrained fluoro-carbon-cerium ore concentrate products, realize the scheme of voluminous article; 5. fluoro-carbon-cerium ore concentrate is of high grade, and the rate of recovery is high; 6. flotation need not heated, and production cost is low.
The specific embodiment
For a better understanding of the present invention, further illustrate content of the present invention, but content of the present invention not only is confined to embodiment below in conjunction with embodiment.
Embodiment 1
Select Chinese somewhere rare-earth original ore for use, essential mineral consists of bastnaesite, bolognian stone, fluorite, orthoclase, quartz, receive grunerite, coronadite, biotite, kaolin and aegirine etc.Raw ore rare earth REO grade is 2.89%.Raw ore ore grinding to whole granularities are-1.0mm after classification, acquisition-1.0+0.4mm ,-0.4+0.074mm and-three grades of 0.074mm, be once to sort with high gradient magnetic separator respectively under the 1.0T in the background magnetic field field intensity, obtain high intensity magnetic separation concentrate and high intensity magnetic separation mine tailing.The productive rate 6.91% of high intensity magnetic separation rough concentrate-1.0+0.4mm grade, rare earth REO grade 4.73%, the rate of recovery 11.31%; The productive rate 11.88% of-0.4+0.074mm grade, rare earth REO grade 12.83%, the rate of recovery 52.72%; The productive rate 11.21% of-0.074mm grade, rare earth REO grade 7.07%, the rate of recovery 27.44%.High intensity magnetic separation rough concentrate gross production rate is 30.00%, and the high intensity magnetic separation operation is thrown and removed 70.00% mine tailing, and the rare earth overall recovery reaches 91.47%.Each grade high intensity magnetic separation rough concentrate carries out table concentration respectively, obtains table concentrate, shaking table chats and shaking table mine tailing.After merging each grade table concentrate and shaking table chats, be to carry out the Wet-type high gradient magnetic separation under the 0.6T, obtain magnetic separation fluoro-carbon-cerium ore concentrate and magnetic separation chats, magnetic separation fluoro-carbon-cerium ore concentrate rare earth REO grade 65.09%, the rate of recovery 67.56% in specified background field intensity.Merge magnetic separation chats and each grade shaking table mine tailing; Ore grinding accounts for 65% to-0.043mm again; The roughly selecting, scan and the sodium carbonate of the selected adjustment agent of using as weight ratio 5:6:1 of flotation operation: waterglass: calgon, collecting agent are the bigcatkin willow hydroximic acid of 3:2: benzene first hydroximic acid, foaming agent are No. 2 oil.Pulp density is 30%, by raw ore per ton, adds 2000 gram adjustment agent successively and sizes mixing, and 3500 gram collecting agents and 60 gram foaming agents carry out roughing flotation, obtain rougher tailings and roughly select concentrate.The rougher tailings pulp density is 28%, and adding 1000 gram collecting agents, No. 2 oil of 40 gram foaming agents carry out once purging selection, obtain once purging selection concentrate and once purging selection mine tailing, and the once purging selection concentrate is back to the roughing flotation operation and forms closed cycle; Once purging selection mine tailing pulp density is 25%, and adding 400 gram collecting agents carry out secondary to be scanned, and obtains secondary scavenger concentrate and secondary and scans mine tailing, and the secondary scavenger concentrate is back to the once purging selection operation and forms closed cycle; It is 22% that secondary is scanned the mine tailing pulp density, adds 200 gram collecting agents and carries out three times and scans, and obtains three scavenger concentrates and flotation tailing, and three scavenger concentrates are back to secondary and scan operation formation closed cycle; Roughly selecting concentrate pulp concentration is 20%, adds 500 gram adjustment agent and carries out primary cleaning, obtains primary cleaning concentrate and primary cleaner tailing, and primary cleaner tailing is back to the roughing flotation operation and forms closed cycle; Primary cleaning concentrate pulp concentration is 15%, adds 300 gram adjustment agent and carries out recleaning, obtains recleaning concentrate and recleaning mine tailing, and the recleaning mine tailing is back to the primary cleaning operation and forms closed cycle; Recleaning concentrate pulp concentration is 10%, adds 100 gram adjustment agent and carries out triple cleaning, obtains flotation fluoro-carbon-cerium ore concentrate and triple cleaning mine tailing, and the triple cleaning mine tailing is back to the recleaning operation and forms closed cycle.Flotation fluoro-carbon-cerium ore concentrate productive rate 0.76%, rare earth REO grade 65.11%, the rate of recovery are 17.05%.The average rare earth REO grade 65.08% of the total concentrate of rare earth, overall recovery reaches 84.61%.
Embodiment 2
Raw ore is identical with embodiment 1, and rare earth REO grade is 5.19%.Ore grinding, classification and magnetic separation are with embodiment 1.The productive rate 9.59% of high intensity magnetic separation rough concentrate-1.0+0.4mm grade, rare earth REO grade 12.03%, the rate of recovery 22.23%; The productive rate 9.92% of-0.4+0.074mm grade, rare earth REO grade 20.62%, the rate of recovery 39.43%; The productive rate 11.29% of-0.074mm grade, rare earth REO grade 14.26%, the rate of recovery 31.03%.High intensity magnetic separation rough concentrate gross production rate is 30.81%, and the high intensity magnetic separation operation is thrown and removed 69.19% mine tailing, and the rare earth overall recovery reaches 92.69%.Each grade high intensity magnetic separation rough concentrate carries out table concentration respectively, obtains table concentrate, shaking table chats and shaking table mine tailing.After merging each grade table concentrate and shaking table chats, be to carry out the Wet-type high gradient magnetic separation under the 0.5T, obtain magnetic separation fluoro-carbon-cerium ore concentrate and magnetic separation chats, magnetic separation fluoro-carbon-cerium ore concentrate rare earth REO grade 66.11%, the rate of recovery 68.44% in specified background field intensity.Merge magnetic separation chats and each grade shaking table mine tailing; Ore grinding accounts for 71% to-0.043mm again; The roughly selecting, scan and the aluminum sulfate of the selected adjustment agent of using as weight ratio 1:1 of flotation operation: waterglass, collecting agent are the oxidized paraffin wax soap of weight ratio 1:5: bigcatkin willow hydroximic acid, foaming agent are No. 2 oil.Pulp density is 30%, by raw ore per ton, adds 2500 gram adjustment agent successively and sizes mixing, and 4000 gram collecting agents and 60 gram foaming agents carry out roughing flotation, obtain rougher tailings and roughly select concentrate.The rougher tailings pulp density is 25%, and adding 1200 gram collecting agents, No. 2 oil of 40 gram foaming agents carry out once purging selection, obtain once purging selection concentrate and once purging selection mine tailing, and the once purging selection concentrate is back to the roughing flotation operation and forms closed cycle; Once purging selection mine tailing pulp density is 23%, and adding 400 gram collecting agents carry out secondary to be scanned, and obtains secondary scavenger concentrate and secondary and scans mine tailing, and the secondary scavenger concentrate is back to the once purging selection operation and forms closed cycle; It is 22% that secondary is scanned the mine tailing pulp density, adds 300 gram collecting agents and carries out three times and scans, and obtains three scavenger concentrates and flotation tailing, and three scavenger concentrates are back to secondary and scan operation formation closed cycle; Roughly selecting concentrate pulp concentration is 20%, adds 600 gram adjustment agent and carries out primary cleaning, obtains primary cleaning concentrate and primary cleaner tailing, and primary cleaner tailing is back to the roughing flotation operation and forms closed cycle; Primary cleaning concentrate pulp concentration is 15%, adds 400 gram adjustment agent and carries out recleaning, obtains recleaning concentrate and recleaning mine tailing, and the recleaning mine tailing is back to the primary cleaning operation and forms closed cycle; Recleaning concentrate pulp concentration is 8%, adds 200 gram adjustment agent and carries out triple cleaning, obtains flotation fluoro-carbon-cerium ore concentrate and triple cleaning mine tailing, and the triple cleaning mine tailing is back to the recleaning operation and forms closed cycle.Flotation fluoro-carbon-cerium ore concentrate productive rate 1.33%, rare earth REO grade 65.28%, the rate of recovery are 16.73%.The average rare earth REO grade 65.95% of the total concentrate of rare earth, overall recovery reaches 85.17%.
Embodiment 3
Raw ore is identical with embodiment 1, and rare earth REO grade is 4.01%.Ore grinding, classification and magnetic separation are with embodiment 1.The productive rate 8.88% of high intensity magnetic separation rough concentrate-1.0+0.4mm grade, rare earth REO grade 11.34%, the rate of recovery 25.11%; The productive rate 7.69% of-0.4+0.074mm grade, rare earth REO grade 18.49%, the rate of recovery 35.45%; The productive rate 9.34% of-0.074mm grade, rare earth REO grade 13.26%, the rate of recovery 30.87%.High intensity magnetic separation rough concentrate gross production rate is 25.90%, and the high intensity magnetic separation operation is thrown and removed 74.10% mine tailing, and the rare earth overall recovery reaches 91.43%.Each grade high intensity magnetic separation rough concentrate carries out table concentration respectively, obtains table concentrate, shaking table chats and shaking table mine tailing.After merging each grade table concentrate and shaking table chats, be to carry out the Wet-type high gradient magnetic separation under the 0.5T, obtain magnetic separation fluoro-carbon-cerium ore concentrate and magnetic separation chats, magnetic separation fluoro-carbon-cerium ore concentrate rare earth REO grade 66.43%, the rate of recovery 68.23% in specified background field intensity.Merge magnetic separation chats and each grade shaking table mine tailing, ore grinding accounts for 68% to-0.043mm again, the roughly selecting of flotation operation, scans with the selected adjustment agent of using and is waterglass, and collecting agent is a bigcatkin willow hydroximic acid ammonium, and foaming agent is No. 2 oil.Pulp density is 30%, by raw ore per ton, adds 3000 gram adjustment agent successively and sizes mixing, and 4000 gram collecting agents and 80 gram foaming agents carry out roughing flotation, obtain rougher tailings and roughly select concentrate.The rougher tailings pulp density is 25%, and adding 1200 gram collecting agents, No. 2 oil of 30 gram foaming agents carry out once purging selection, obtain once purging selection concentrate and once purging selection mine tailing, and the once purging selection concentrate is back to the roughing flotation operation and forms closed cycle; Once purging selection mine tailing pulp density is 23%, and adding 400 gram collecting agents carry out secondary to be scanned, and obtains secondary scavenger concentrate and secondary and scans mine tailing, and the secondary scavenger concentrate is back to the once purging selection operation and forms closed cycle; It is 22% that secondary is scanned the mine tailing pulp density, adds 300 gram collecting agents and carries out three times and scans, and obtains three scavenger concentrates and flotation tailing, and three scavenger concentrates are back to secondary and scan operation formation closed cycle; Roughly selecting concentrate pulp concentration is 20%, adds 500 gram adjustment agent and carries out primary cleaning, obtains primary cleaning concentrate and primary cleaner tailing, and primary cleaner tailing is back to the roughing flotation operation and forms closed cycle; Primary cleaning concentrate pulp concentration is 15%, adds 500 gram adjustment agent and carries out recleaning, obtains recleaning concentrate and recleaning mine tailing, and the recleaning mine tailing is back to the primary cleaning operation and forms closed cycle; Recleaning concentrate pulp concentration is 10%, adds 100 gram adjustment agent and carries out triple cleaning, obtains flotation fluoro-carbon-cerium ore concentrate and triple cleaning mine tailing, and the triple cleaning mine tailing is back to the recleaning operation and forms closed cycle.Flotation fluoro-carbon-cerium ore concentrate productive rate 1.02%, rare earth REO grade 65.08%, the rate of recovery are 15.56%.The average rare earth REO grade 66.16% of the total concentrate of rare earth, overall recovery reaches 84.79%.
Claims (3)
1. the beneficiation method of a bastnaesite is characterized in that being made up of following steps:
1. grind grading: the tcrude ore ore grinding is to-1.0mm, be classified as-1.0+0.4mm ,-0.4+0.074mm and-three grades of 0.074mm;
2. raw ore magnetic separation: be magnetic separation under the condition of 1.0T in the background magnetic field field intensity, obtain high intensity magnetic separation concentrate and high intensity magnetic separation mine tailing;
3. gravity treatment: each grade high intensity magnetic separation concentrate carries out table concentration respectively, obtains table concentrate, shaking table chats and shaking table mine tailing;
4. table concentrate and chats magnetic separation: merging each grade table concentrate and shaking table chats, is Wet-type high gradient magnetic separation under 0.5 ~ 0.8T condition in specified background field intensity, obtains magnetic separation fluoro-carbon-cerium ore concentrate and magnetic separation chats;
5. magnetic separation chats and the flotation of shaking table mine tailing: merge magnetic separation chats and shaking table mine tailing; Ore grinding accounts for 50 ~ 75% to-0.043mm again, and pulp density is 25 ~ 35%, by raw ore per ton; Adding 1000 ~ 3000 gram adjustment agent successively sizes mixing; 3000 ~ 5000 gram collecting agents and No. 2 oil of 10 ~ 100 gram foaming agents carry out roughing flotation, obtain to roughly select concentrate and rougher tailings;
The rougher tailings pulp density is 20 ~ 35%, and adding 1000 ~ 1500 gram collecting agents, No. 2 oil of 5 ~ 40 gram foaming agents carry out once purging selection, obtain once purging selection concentrate and once purging selection mine tailing, and the once purging selection concentrate is back to the roughing flotation operation and forms closed cycle;
Once purging selection mine tailing pulp density is 20 ~ 35%, and adding 400 ~ 800 gram collecting agents carry out secondary and scan; Obtain secondary scavenger concentrate and secondary and scan mine tailing, the secondary scavenger concentrate is back to the once purging selection operation and forms closed cycle;
It is 20 ~ 35% that secondary is scanned the mine tailing pulp density, adds 200 ~ 500 gram collecting agents and carries out three times and scans, and obtains three scavenger concentrates and flotation tailing, and three scavenger concentrates are back to secondary and scan operation formation closed cycle;
Roughly selecting concentrate pulp concentration is 10 ~ 30%, adds 400 ~ 1000 gram adjustment agent and carries out primary cleaning; Obtain primary cleaning concentrate and primary cleaner tailing, primary cleaner tailing is back to the roughing flotation operation and forms closed cycle;
Primary cleaning concentrate pulp concentration is 10 ~ 25%, adds 200 ~ 800 gram adjustment agent and carries out recleaning; Obtain recleaning concentrate and recleaning mine tailing, the recleaning mine tailing is back to the primary cleaning operation and forms closed cycle;
Recleaning concentrate pulp concentration is 5 ~ 20%, adds 100 ~ 400 gram adjustment agent and carries out triple cleaning, obtains flotation fluoro-carbon-cerium ore concentrate and triple cleaning mine tailing, and the triple cleaning mine tailing is back to the recleaning operation and forms closed cycle.
2. the beneficiation method of bastnaesite according to claim 1 is characterized in that said adjustment agent is one or more in sodium carbonate, waterglass, aluminum sulfate or the calgon.
3. the beneficiation method of bastnaesite according to claim 1 is characterized in that said collecting
Agent is one or more in enuatrol, oxidized paraffin wax soap, bigcatkin willow hydroximic acid ammonium, bigcatkin willow hydroximic acid, benzene first hydroximic acid or the alkylhydroxamic acid.
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| CN102886312A (en) * | 2012-10-15 | 2013-01-23 | 内蒙古科技大学 | Mineral sorting method for separating bastnaesite and monazite from high-grade mixed rare-earth concentrate |
| CN103301949A (en) * | 2013-05-17 | 2013-09-18 | 中国地质科学院矿产综合利用研究所 | Foaming agent for rare earth ore dressing and normal-temperature ore dressing process of low-grade refractory rare earth ore |
| CN103386358A (en) * | 2013-07-19 | 2013-11-13 | 广州有色金属研究院 | Ore dressing method for low-grade rare earth ore |
| CN103962232A (en) * | 2014-05-08 | 2014-08-06 | 广东省工业技术研究院(广州有色金属研究院) | Rare earth ore beneficiation method |
| CN104607320A (en) * | 2014-11-19 | 2015-05-13 | 四川省地质矿产勘查开发局成都综合岩矿测试中心 | Efficient flotation collector for rare earth ore |
| CN104941781A (en) * | 2015-06-30 | 2015-09-30 | 广西华锡集团股份有限公司车河选矿厂 | Grading method for polymetallic ores |
| CN106733146A (en) * | 2017-01-06 | 2017-05-31 | 四川省地质矿产勘查开发局成都综合岩矿测试中心 | Method for recovering rare earth minerals from rare earth tailings with heavy fine iron mud content |
| CN106799300A (en) * | 2016-12-15 | 2017-06-06 | 江苏旌凯中科超导高技术有限公司 | A kind of beneficiation method of Rare Earth Mine |
| CN107099691A (en) * | 2017-07-12 | 2017-08-29 | 铜山县丰华工贸有限公司 | A kind of manganese agent and preparation method thereof of aluminum alloy smelting |
| CN107442294A (en) * | 2017-09-04 | 2017-12-08 | 江西理工大学 | A kind of method that flotation at normal temperatures obtains qualified white tungsten fine ore |
| CN107520063A (en) * | 2017-10-11 | 2017-12-29 | 江西理工大学 | A kind of preparation method and applications of Rare Earth Mine flotation collector |
| CN108118166A (en) * | 2017-12-20 | 2018-06-05 | 宁波市鄞州智伴信息科技有限公司 | A kind of technique for being separated from Rare Earth Mine and extracting fluorine carbon cerium mischmetal |
| CN108499742A (en) * | 2018-03-26 | 2018-09-07 | 江西理工大学 | Application of the cinnamyl group hydroximic acid in ilmenite and bastnaesite flotation |
| CN109806966A (en) * | 2019-02-21 | 2019-05-28 | 中国地质科学院矿产综合利用研究所 | Beneficiation method for comprehensively recovering strontium minerals from rare earth tailings |
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| CN110813522A (en) * | 2019-11-01 | 2020-02-21 | 四川江铜稀土有限责任公司 | Method for improving quality of flotation rare earth concentrate and mineral separation method of rare earth ore |
| CN111167596A (en) * | 2019-12-30 | 2020-05-19 | 安徽工业大学 | Method for comprehensively recovering rare earth minerals and fluorite in bastnaesite treatment process |
| CN111346742A (en) * | 2020-03-16 | 2020-06-30 | 江西理工大学 | Mineral separation method applying superconducting magnetic separation to rare earth ore |
| CN111530634A (en) * | 2020-04-24 | 2020-08-14 | 核工业北京化工冶金研究院 | Flotation method of alkaline granite type rare earth ore |
| CN111589573A (en) * | 2020-05-26 | 2020-08-28 | 中国恩菲工程技术有限公司 | Rare earth ore dressing method |
| CN111871594A (en) * | 2020-06-30 | 2020-11-03 | 中国地质科学院矿产综合利用研究所 | Mineral processing technology for recovering phosphorus and rare earth from vanadium titano-magnetite |
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| CN102886312A (en) * | 2012-10-15 | 2013-01-23 | 内蒙古科技大学 | Mineral sorting method for separating bastnaesite and monazite from high-grade mixed rare-earth concentrate |
| CN103301949A (en) * | 2013-05-17 | 2013-09-18 | 中国地质科学院矿产综合利用研究所 | Foaming agent for rare earth ore dressing and normal-temperature ore dressing process of low-grade refractory rare earth ore |
| CN103301949B (en) * | 2013-05-17 | 2014-08-13 | 中国地质科学院矿产综合利用研究所 | Foaming agent for rare earth ore dressing and normal-temperature ore dressing process of low-grade refractory rare earth ore |
| CN103386358A (en) * | 2013-07-19 | 2013-11-13 | 广州有色金属研究院 | Ore dressing method for low-grade rare earth ore |
| CN103962232A (en) * | 2014-05-08 | 2014-08-06 | 广东省工业技术研究院(广州有色金属研究院) | Rare earth ore beneficiation method |
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| CN104607320A (en) * | 2014-11-19 | 2015-05-13 | 四川省地质矿产勘查开发局成都综合岩矿测试中心 | Efficient flotation collector for rare earth ore |
| CN104941781A (en) * | 2015-06-30 | 2015-09-30 | 广西华锡集团股份有限公司车河选矿厂 | Grading method for polymetallic ores |
| CN106799300B (en) * | 2016-12-15 | 2019-09-17 | 江苏旌凯中科超导高技术有限公司 | A kind of beneficiation method of Rare Earth Mine |
| CN106799300A (en) * | 2016-12-15 | 2017-06-06 | 江苏旌凯中科超导高技术有限公司 | A kind of beneficiation method of Rare Earth Mine |
| CN106733146A (en) * | 2017-01-06 | 2017-05-31 | 四川省地质矿产勘查开发局成都综合岩矿测试中心 | Method for recovering rare earth minerals from rare earth tailings with heavy fine iron mud content |
| CN107099691A (en) * | 2017-07-12 | 2017-08-29 | 铜山县丰华工贸有限公司 | A kind of manganese agent and preparation method thereof of aluminum alloy smelting |
| CN107442294A (en) * | 2017-09-04 | 2017-12-08 | 江西理工大学 | A kind of method that flotation at normal temperatures obtains qualified white tungsten fine ore |
| CN107520063A (en) * | 2017-10-11 | 2017-12-29 | 江西理工大学 | A kind of preparation method and applications of Rare Earth Mine flotation collector |
| CN107520063B (en) * | 2017-10-11 | 2020-06-02 | 江西理工大学 | Preparation method and application of rare earth ore flotation collector |
| CN108118166A (en) * | 2017-12-20 | 2018-06-05 | 宁波市鄞州智伴信息科技有限公司 | A kind of technique for being separated from Rare Earth Mine and extracting fluorine carbon cerium mischmetal |
| CN108499742A (en) * | 2018-03-26 | 2018-09-07 | 江西理工大学 | Application of the cinnamyl group hydroximic acid in ilmenite and bastnaesite flotation |
| CN108499742B (en) * | 2018-03-26 | 2022-05-31 | 江西理工大学 | Application of phenylpropenyl hydroximic acid in flotation of ilmenite and bastnaesite |
| CN109806966A (en) * | 2019-02-21 | 2019-05-28 | 中国地质科学院矿产综合利用研究所 | Beneficiation method for comprehensively recovering strontium minerals from rare earth tailings |
| CN110681494A (en) * | 2019-10-14 | 2020-01-14 | 中南大学 | Combined reagent for flotation of ultra-low-grade rare earth ore, flotation method and application thereof |
| CN110681494B (en) * | 2019-10-14 | 2021-09-17 | 中南大学 | Combined reagent for flotation of ultra-low-grade rare earth ore, flotation method and application thereof |
| CN110813522A (en) * | 2019-11-01 | 2020-02-21 | 四川江铜稀土有限责任公司 | Method for improving quality of flotation rare earth concentrate and mineral separation method of rare earth ore |
| CN111167596A (en) * | 2019-12-30 | 2020-05-19 | 安徽工业大学 | Method for comprehensively recovering rare earth minerals and fluorite in bastnaesite treatment process |
| CN111346742A (en) * | 2020-03-16 | 2020-06-30 | 江西理工大学 | Mineral separation method applying superconducting magnetic separation to rare earth ore |
| CN111530634A (en) * | 2020-04-24 | 2020-08-14 | 核工业北京化工冶金研究院 | Flotation method of alkaline granite type rare earth ore |
| CN111530634B (en) * | 2020-04-24 | 2022-03-22 | 核工业北京化工冶金研究院 | Flotation method of alkaline granite type rare earth ore |
| CN111589573A (en) * | 2020-05-26 | 2020-08-28 | 中国恩菲工程技术有限公司 | Rare earth ore dressing method |
| CN111871594A (en) * | 2020-06-30 | 2020-11-03 | 中国地质科学院矿产综合利用研究所 | Mineral processing technology for recovering phosphorus and rare earth from vanadium titano-magnetite |
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Inventor after: Qiu Xianyang Inventor after: Zou Jianjian Inventor after: Ye Xiaolu Inventor after: Liao Hua Inventor after: Qiu Xueming Inventor after: Chen Yukai Inventor after: Yan Haowei Inventor after: Wu Zhu Inventor after: Fu Ming Xu Inventor after: Zhao Jinkui Inventor after: Chen Yun Inventor after: Hu Zhen Inventor after: Peng Meiwang Inventor after: Yang Fuqiang Inventor after: Chen Hongkang Inventor after: Wang Chengxing Inventor after: Li Hanwen Inventor after: Tang Yuhe Inventor after: Ye Fuxing Inventor after: Wang Tai Inventor after: Zhong Senlin Inventor after: Chen Zhiqiang Inventor before: Qiu Xianyang Inventor before: Zou Jianjian Inventor before: Ye Xiaolu Inventor before: Hu Zhen Inventor before: Wang Chengxing Inventor before: Li Hanwen Inventor before: Tang Yuhe Inventor before: Ye Fuxing Inventor before: Wang Tai Inventor before: Zhong Senlin Inventor before: Chen Zhiqiang |
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Effective date of registration: 20171219 Address after: 510651 Changxin Road, Tianhe District, Guangzhou, Guangzhou, Guangdong Co-patentee after: SICHUAN JCC RARE EARTH METALS CO.,LTD. Patentee after: GUANGDONG INSTITUTE OF RESOURCES COMPREHENSIVE UTILIZATION Address before: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Patentee before: GUANGDONG INSTITUTE OF RESOURCES COMPREHENSIVE UTILIZATION |
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Address after: 510651 Changxin Road, Tianhe District, Guangzhou, Guangzhou, Guangdong Patentee after: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences Patentee after: Zhongxi (Liangshan) Rare Earth Co.,Ltd. Address before: 510651 Changxin Road, Tianhe District, Guangzhou, Guangzhou, Guangdong Patentee before: GUANGDONG INSTITUTE OF RESOURCES COMPREHENSIVE UTILIZATION Patentee before: SICHUAN JCC RARE EARTH METALS CO.,LTD. |