CN101537394B - Chemical-adding scrubbing beneficiation and enrichment method suitable for clay vanadium ore - Google Patents
Chemical-adding scrubbing beneficiation and enrichment method suitable for clay vanadium ore Download PDFInfo
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- CN101537394B CN101537394B CN2009100590900A CN200910059090A CN101537394B CN 101537394 B CN101537394 B CN 101537394B CN 2009100590900 A CN2009100590900 A CN 2009100590900A CN 200910059090 A CN200910059090 A CN 200910059090A CN 101537394 B CN101537394 B CN 101537394B
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Abstract
The invention provides a chemical adding, scrubbing, mineral separation and enrichment method suitable for clay vanadium ore, which adopts a, crushing and raw ore screening, b, stirring and size mixing, c, chemical adding, scrubbing, d, ore pulp screening, e, grading and other steps.
Description
Technical field
The present invention relates to the beneficiation enrichment technology field of clay navajoite, exactly relate to a kind of dosing scouring enrichment new method that is applicable to the clay navajoite, the present invention is widely used in the beneficiation enrichment of various clay navajoites, vanadium extraction raw material than high-grade is provided can for follow-up wet method process for extracting vanadium.
Background technology
The clay navajoite is the important navajoite resource of a class, and a large amount of distributions are arranged all over the world.China's navajoite resource is more, and the clay navajoite has a large amount of proved reserves in tens provinces and regions, the whole nation.At present mainly extract the vanadium of association by the vanadium titano-magnetite comprehensive utilization in the world, also have by utilizing the clay navajoite to extract vanadium, the existing a lot of this clay navajoite vanadium extraction factory in a plurality of provinces and regions such as China Hunan, Hubei, Henan, Guangxi.
Vanadium in the clay navajoite mostly is absorbent-type or is present in the mineral such as illite, roscoelite with the isomorph form, during the ore ore grinding very easily argillization be less than 400 purpose sludges, the chemistry floatation is helpless, mineral such as illite, roscoelite are the low-gravity silicate mineral, can't utilize gravity separation, and vanadium is weak magnetic metal, illite, roscoelite all do not have magnetic, magnetic method can not adopt, so the clay navajoite adopts conventional technique of preparing, is difficult to carry out enrichment.
Domestic many scientific research institutions have carried out big quantity research for clay navajoite process for extracting vanadium, think that the vanadium in the clay navajoite is difficult to obtain effective enrichment by beneficiation method, thereby directly select the higher clay navajoite of grade for use, are generally V
2O
5Content leaches vanadium extraction more than 1.2% by raw ore oxidizing roasting-wet method, obtains the vanadic anhydride product of high-load.This technology V
2O
5The rate of recovery have only 40%～50% mostly; lower because of head grade again; roasting leaching material treating capacity is big, and device efficiency is low, and auxiliary materials such as energy consumption and required soda acid consume high; seriously polluted to environment; production cost is higher, and the performance of enterprises is relatively poor, and makes that a large amount of low-grade clay navajoites can't effectively be developed; cause the waste of mineral resources, also do not met country simultaneously about the policy requirements of environmental protection and energy-saving and emission-reduction.
Summary of the invention
For solving the above-mentioned technical problem in the clay navajoite development and use process, the present invention proposes and a kind of the low-grade vanadium that contains in the vanadium clay pit effectively is enriched in the concentrate product, remove the dosing of a large amount of mine tailings and clean the beneficiation enrichment method, the vanadium concentrate that adopts this method to obtain is carried out the hydrometallurgy vanadium extraction, can make the low-grade vanadium clay pit that contains become the resource that can develop, can effectively improve the rate of recovery of wet method vanadium extraction, and can significantly reduce consumption and the production cost of various auxiliary material such as the required soda acid of wet method vanadium extraction, reduced the pollution of loam mould navajoite vanadium extraction to environment.
The present invention realizes by adopting following technical scheme:
A kind of dosing scouring beneficiation enrichment method that is applicable to the clay navajoite is characterized in that step is as follows:
A, fragmentation and raw ore screening, the employing disintegrating machine to-10～30mm grade, sieves out crushing raw ore+2～5mm grade; Be near or below dosing as+2～5mm grade vanadium grade after the water flushing and cleaned the mine tailing of telling, can be considered mine tailing and directly remove, higher as the vanadium grade, then continue to be crushed to-below 2～5mm;
B, stir and to size mixing, raw ore broken and that screening is good is added water furnishing pulp density in tank diameter be 35～70% ore pulp, and described pulp density refers to contain in the ore pulp percentage of raw ore amount;
C, dosing are cleaned, the sludge scattered inhibitor that in ore pulp, adds 0.5～5Kg by raw ore per ton, send into then in the mechanical agitation swaging machine and clean, making embedding be distributed in illite in hard gangue mineral intergranular, crack and the holes such as quartz, kaolinite, mica, limonite etc. contains the vanadium clay mineral and is dissociated out by levigate, and by the abundant dispersion suspension of medicament, clean up simultaneously quartz, kaolinite etc. do not contain the vanadium mineral particle the surface and make it to be effectively suppressed, the linear velocity of mechanical agitation swaging machine is 1～16m/s, and the scouring time is 5～40 minutes;
The screening of d, ore pulp is sieved out the ore pulp after dosing is cleaned+the coarse fraction mine tailing of 0.1～0.3mm with the sieve of 0.1～0.3mm grade;
E, classification are isolated with the classification separating equipment and to be contained the first lower fine fraction mine tailing of vanadium, and obtain the first higher vanadium concentrate product of alum content after filtering.
To sieve out through described ore pulp screening step+the coarse fraction mine tailing of 0.1～0.3mm does following processing:
1), ore grinding, described coarse fraction mine tailing ore grinding is accounted for 20～70% to-200 orders;
2), the secondary dosing is cleaned, in the mine tailing after the ore grinding step, add 0.5～5Kg sludge scattered inhibitor by raw ore per ton, send into and carry out the secondary scouring in the mechanical agitation swaging machine, the linear velocity of mechanical agitation swaging machine is 1～16m/s, and the scouring time is 5～40 minutes;
3), the secondary classification, isolate with the classification separating equipment and to contain the second lower fine fraction mine tailing of vanadium, and obtain the second higher vanadium concentrate product of alum content after filtering.
Pulp density is specifically decided according to raw ore clay mineral content height, and the corresponding height of pulp density was a little when clay mineral content was low.
Described sludge scattered inhibitor, referring to has strong dispersibility simultaneously quartzy, kaolinite to be had the organic or inorganic sludge scattered inhibitor that suppresses ability more by force to the clay sludge, as the low molecule copolymer of common calgon, sodium metasilicate, phosphate, organic acid binary or ternary, or their compounded combination.
Described mechanical agitation swaging machine refers to the slot type mechanical agitation swaging machine of industrial type, and according to ore scrub process amount and scouring time, multimachine is combined to form continuous stirring and cleans operation.
The described scouring time, refer to the time of staying of ore pulp in swaging machine, along with raw ore clay mineral content height and clean stirring intensity and adjust, clay mineral content is high or clean intensity low then to clean the time longer, and clay mineral content is low or clean the intensity height then to clean the time shorter.The scouring time, the vanadium concentrate grade was higher but the rate of recovery is low in short-term, cleaned overlong time, and then the big grade of vanadium concentrate product yield is lower, and the scouring time is generally 5～40 minutes, took all factors into consideration vanadium concentrate product grade and the rate of recovery and determined the best scouring time.
Described classification separating equipment refers to the wherein combination of a kind of equipment or two or more equipment such as sloping plate grading machine, inclined tube-type grader, flat flow grader, spiral classifier, concentrator.
Described ore grinding refers to adopt ball mill that ore is ground.
Described disintegrating machine refers to jaw crusher.
Advantage of the present invention shows:
1, because the present invention adopts a, broken and raw ore sieves, b, stirring is sized mixing, c, dosing is cleaned, d, the ore pulp screening, and e, the technical scheme that 6 steps of classification form, compared with prior art, the present invention can effectively be enriched in the low-grade vanadium that contains in the vanadium clay pit in the concentrate product, and remove a large amount of mine tailings, the first vanadium concentrate product and the second vanadium concentrate product that adopts this method to obtain carried out the hydrometallurgy vanadium extraction, can make the low-grade vanadium clay pit that contains become the resource that can develop, can effectively improve the rate of recovery of wet method vanadium extraction, and can significantly reduce consumption and the production cost of various auxiliary material such as the required soda acid of wet method vanadium extraction, reduced the pollution of loam mould navajoite vanadium extraction to environment.
2, the clay navajoite reaches dosing and cleans the enrichment processing through fragmentation and raw ore screening, can remove the low-grade mine tailing more than 60%, reduces auxiliary material consumption and energy consumptions such as hydrometallurgy vanadium extraction throughput and soda acid significantly, effectively alleviates the pollution to environment.
3, the clay navajoite is cleaned through dosing, the concentration ratio of vanadium can reach more than 2, obtain entering follow-up wet method vanadium extraction operation than the first vanadium concentrate product of high-grade, the device efficiency of wet method vanadium extraction and the rate of recovery of vanadium (rate of recovery＞82%) can be significantly improved, and the cost of wet method vanadium extraction can be significantly reduced.
4, the coarse fraction mine tailing is cleaned through the secondary dosing, further reduced mine tailing vanadium grade, what obtain second washes grade concentrate product grade and dosing for the first time to clean the first vanadium concentrate product grade that obtains basic identical, further improve the recovery rate in ore-dressing of vanadium, improved the utilization rate of clay navajoite resource.
5, low-grade clay navajoite is cleaned beneficiation enrichment through dosing, become the raw material of wet method vanadium extraction preferably, the low-grade clay navajoite that can't effectively develop under a large amount of prior art levels can be developed preferably, for country has increased a large amount of navajoite developed resources.
6, the dosing of clay navajoite is cleaned in the beneficiation enrichment technology, and the water behind the concentrate tailing filtration and flushing water etc. all can be used as backwater and return recyclingly, can not produce environment and pollute.
Description of drawings
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, wherein:
Fig. 1 is process chart of the present invention
The specific embodiment
Embodiment 1
Clay navajoite raw ore contains V
2O
5Grade 0.84% is crushed to-3mm, and 1.5 liters slot type mechanical agitation swaging machine stirs linear velocity 2.3m/s.Adding water sizes mixing, pulp density 50%, add common calgon, sodium metasilicate, phosphate, organic acid binary or ternary are hanged down the molecule copolymer, perhaps add sludge scattered inhibitor (declaring patent on the same day) 1300 grams/ton raw ore that Chengdu Inst. of Comprehensive Mineral Utilization, Chinese Academy of Geologic produces, cleaned 20 minutes, sieve out+the coarse fraction mine tailing productive rate 46% of 0.15mm grade 0.37%, emanate after 15 minutes, isolate the first fine fraction mine tailing productive rate 21.5% of grade 0.49%, mine tailing adds up to productive rate 67.5%, grade 0.41%, obtain productive rate 32.5%, the first vanadium concentrate product of grade 1.74%, the recovery rate in ore-dressing 67.2% of vanadium, the concentration ratio of vanadium are 2.07.
Embodiment 2
Clay navajoite raw ore contains V
2O
5Grade 0.82% is crushed to-3mm, and 1.5 liters slot type mechanical agitation swaging machine stirs linear velocity 2.3m/s.Add water and size mixing, pulp density 50%, not dosing was directly cleaned 20 minutes, sieve out+0.043mm tailings grade 0.42%, productive rate 44.44%,-0.043mm concentrate yield 55.56%, grade 1.14%, the recovery rate in ore-dressing 77.24% of vanadium, the concentration ratio of vanadium are 1.39.As sieving out earlier+0.15mm coarse fraction mine tailing, through long-time sedimentation separation, also can not divide the first fine fraction mine tailing, the first vanadium concentrate grade that obtains is lower.
Embodiment 3
Clay navajoite crushing raw ore screening, remove about 40%-20～+ 3mm bulky grain mine tailing ,-3mm raw ore enters dosing and cleans operation, contains V
2O
5Grade 1.37%.80 liters industrial swaging machine speed of agitator 600r/min, adding water sizes mixing, pulp density 60%, add common calgon, sodium metasilicate, phosphate, organic acid binary or ternary are hanged down the molecule copolymer, perhaps add sludge scattered inhibitor (declaring patent on the same day) 2300 grams/ton raw ore that Chengdu Inst. of Comprehensive Mineral Utilization, Chinese Academy of Geologic produces, cleaned 20 minutes, sieve out+the coarse fraction mine tailing productive rate 37.5% of 0.15mm grade 0.76%, emanate after 15 minutes, isolate the first fine fraction mine tailing productive rate 22.5% of grade 0.86%, mine tailing adds up to productive rate 59.5%, grade 0.80%, obtain productive rate 40.5%, the first vanadium concentrate product of grade 2.23%, recovery rate in ore-dressing 65.3% is cleaned in the dosing of vanadium, and the concentration ratio of vanadium is 1.63.Concentrate is through oxidizing roasting, and the wet method vanadium extraction obtains the vanadic anhydride product of content＞99.5%, and the smelting recovery of vanadium reaches 82%.
Embodiment 4
Clay navajoite raw ore contains V
2O
5Grade 1.25% is crushed to-3mm.1.5 the swaging machine that rises stirs linear velocity 2.3m/s.Adding water sizes mixing, pulp density 50%, add the low molecule copolymer of common calgon, sodium metasilicate, phosphate, organic acid binary or ternary, perhaps add sludge scattered inhibitor (declaring patent on the same day) 2500 grams/ton raw ore that Chengdu Inst. of Comprehensive Mineral Utilization, Chinese Academy of Geologic produces, cleaned 20 minutes.Sieve out+the coarse fraction mine tailing productive rate 45.13% of 0.15mm grade 0.63%, emanate after 15 minutes, isolate the first fine fraction mine tailing productive rate 17.29% of grade 0.89%, obtain the first vanadium concentrate product of productive rate 37.59%, grade 2.16%.With the coarse fraction mine tailing in ball mill ore grinding to-200 orders 55%, enter 1.5 liters of swaging machines, stir linear velocity 2.3m/s, pulp density 50%, add sludge scattered inhibitor 2000 grams/ton raw ore, cleaned 20 minutes, emanate after 15 minutes, isolate the second fine fraction mine tailing of grade 0.45%, productive rate 40.454%, obtain the second vanadium concentrate product of grade 2.17%, productive rate 4.68%.Mine tailing adds up to productive rate 57.73%, grade 0.58%, and the vanadium concentrate adds up to productive rate 42.27%, grade 2.16%, the ore dressing overall recovery 73.31% of vanadium, and the concentration ratio of vanadium is 1.73.
Embodiment 5
With reference to Figure of description 1, the invention discloses a kind of dosing scouring beneficiation enrichment method that is applicable to the clay navajoite, its step is as follows:
A, fragmentation and raw ore screening, the employing disintegrating machine to-10～30mm grade, sieves out crushing raw ore+2～5mm grade; Be near or below dosing as+2～5mm grade vanadium grade after the water flushing and cleaned the mine tailing of telling, can be considered mine tailing and directly remove, higher as the vanadium grade, then continue to be crushed to-below 2～5mm;
B, stirring, raw ore broken and that screening is good is added water furnishing pulp density in tank diameter be 35～70% ore pulp, described pulp density refers to contain in the ore pulp percentage of raw ore amount;
C, dosing are cleaned, the sludge scattered inhibitor that in ore pulp, adds 0.5～5Kg by raw ore per ton, send into then in the mechanical agitation swaging machine and clean, making embedding be distributed in illite in hard gangue mineral intergranular, crack and the holes such as quartz, kaolinite, mica, limonite etc. contains the vanadium clay mineral and is dissociated out by levigate, and by the abundant dispersion suspension of medicament, clean up simultaneously quartz, kaolinite etc. do not contain the vanadium mineral particle the surface and make it to be effectively suppressed, the linear velocity of mechanical agitation swaging machine is 1～16m/s, and the scouring time is 5～40 minutes;
The screening of d, ore pulp is sieved out the ore pulp after dosing is cleaned+the coarse fraction mine tailing of 0.1～0.3mm with the sieve of 0.1～0.3mm grade;
E, classification are isolated with the classification separating equipment and to be contained the first lower fine fraction mine tailing of vanadium, and obtain the first higher vanadium concentrate product of alum content after filtering.
To sieve out through described ore pulp screening step+the coarse fraction mine tailing of 0.1～0.3mm does following processing:
1), ore grinding, described coarse fraction mine tailing ore grinding is accounted for 20～70% to-200 orders;
2), the secondary dosing is cleaned, in the mine tailing after the ore grinding step, add 0.5～5Kg sludge scattered inhibitor by raw ore per ton, send into and carry out the secondary scouring in the mechanical agitation swaging machine, the linear velocity of mechanical agitation swaging machine is 1～16m/s, and the scouring time is 5～40 minutes;
3), the secondary classification, isolate with the classification separating equipment and to contain the second lower fine fraction mine tailing of vanadium, and obtain the second higher vanadium concentrate product of alum content after filtering.Pulp density is specifically decided according to raw ore clay mineral content height, and pulp density was high when clay mineral content was low.Described sludge scattered inhibitor, referring to has strong dispersibility simultaneously quartzy, kaolinite to be had the organic or inorganic sludge scattered inhibitor that suppresses ability more by force to the clay sludge, as the low molecule copolymer of common calgon, sodium metasilicate, phosphate, organic acid binary or ternary, or their compounded combination.Described mechanical agitation swaging machine, refer to the slot type mechanical agitation swaging machine of industrial type, according to ore scrub process amount and scouring time, multimachine is combined to form continuous stirring and cleans operation, require the swaging machine linear velocity to reach 1～16m/s, to guarantee suitable scouring intensity.The described scouring time, refer to the time of staying of ore pulp in swaging machine, along with raw ore clay mineral content height and clean stirring intensity and adjust, clay mineral content is high or clean intensity low then to clean the time longer, and clay mineral content is low or clean the intensity height then to clean the time shorter.The scouring time, the vanadium concentrate grade was higher but the rate of recovery is low in short-term, cleaned overlong time, and then the big grade of vanadium concentrate product yield is lower, and the scouring time is generally 5～40 minutes, took all factors into consideration vanadium concentrate product grade and the rate of recovery and determined the best scouring time.Described classification separating equipment refers to the wherein combination of a kind of equipment or two or more equipment such as sloping plate grading machine, inclined tube-type grader, flat flow grader, spiral classifier, concentrator.Described ore grinding refers to adopt ball mill or rod mill or autogenous tumbling mill etc. that ore is ground.Described disintegrating machine refers to various forms of industrial disintegrating machines, for example jaw crusher.
The invention is not restricted to above-mentioned embodiment, according to the description of above-described embodiment, those of ordinary skill in the art also can make some apparent changes, but these changes all should fall within the protection domain of claim of the present invention.
Claims (6)
1. the beneficiation enrichment method is cleaned in a dosing that is applicable to the clay navajoite, it is characterized in that step is as follows:
A, fragmentation and raw ore screening, the employing disintegrating machine to-10～30mm grade, sieves out crushing raw ore+2～5mm grade; Be near or below dosing as+2～5mm grade vanadium grade after the water flushing and cleaned the mine tailing of telling, can be considered mine tailing and directly remove, higher as the vanadium grade, then continue to be crushed to-below 2～5mm;
B, stir and to size mixing, raw ore broken and that screening is good is added water furnishing pulp density in tank diameter be 35～70% ore pulp, and described pulp density refers to contain in the ore pulp percentage of raw ore amount;
C, dosing are cleaned, in ore pulp, add by the sludge scattered inhibitor that adds 0.5～5Kg in the raw ore per ton, send into then in the mechanical agitation swaging machine and clean, illite, mica and limonite that embedding is distributed in quartzy and kaolinite intergranular, crack and the hole are dissociated out by levigate, and by the abundant dispersion suspension of medicament, clean up quartzy simultaneously and kaolinic surface and make it to be effectively suppressed, the linear velocity of mechanical agitation swaging machine is 1 ~ 16m/s, and the scouring time is 5～40 minutes;
Described sludge scattered inhibitor is the low molecule copolymer of calgon, sodium metasilicate, phosphate, organic acid binary or ternary;
The screening of d, ore pulp is sieved out the ore pulp after dosing is cleaned+the coarse fraction mine tailing of 0.1～0.3mm with the sieve of 0.1～0.3mm grade;
E, classification are isolated with the classification separating equipment and to be contained the first lower fine fraction mine tailing of vanadium, and obtain the first higher vanadium concentrate product of content of vanadium after filtering.
2. the beneficiation enrichment method is cleaned in the dosing that is applicable to the clay navajoite according to claim 1, it is characterized in that: to sieve out through described ore pulp screening step+the coarse fraction mine tailing of 0.1～0.3mm does following processing:
1), ore grinding, described coarse fraction mine tailing ore grinding is accounted for 20～70% to-200 orders;
2), the secondary dosing is cleaned, in the mine tailing after the ore grinding step, add 0.5～5Kg sludge scattered inhibitor by raw ore per ton, send into and carry out the secondary scouring in the mechanical agitation swaging machine, the linear velocity of mechanical agitation swaging machine is 1 ~ 16m/s, and the scouring time is 5～40 minutes;
3), the secondary classification, isolate with the classification separating equipment and to contain the second lower fine fraction mine tailing of vanadium, and obtain the second higher vanadium concentrate product of content of vanadium after filtering.
3. the beneficiation enrichment method is cleaned in the dosing that is applicable to the clay navajoite according to claim 1 and 2, it is characterized in that: described mechanical agitation swaging machine refers to the slot type mechanical agitation swaging machine of industrial type.
4. the dosing scouring beneficiation enrichment method that is applicable to the clay navajoite according to claim 1 and 2 is characterized in that: the described scouring time, refer to the time of staying of ore pulp in swaging machine.
5. the beneficiation enrichment method is cleaned in the dosing that is applicable to the clay navajoite according to claim 1 and 2, it is characterized in that: described classification separating equipment refers in sloping plate grading machine, inclined tube-type grader, flat flow grader, spiral classifier or the concentrator combination of a kind of equipment wherein or two or more equipment.
6. the beneficiation enrichment method is cleaned in the dosing that is applicable to the clay navajoite according to claim 2, and it is characterized in that: described ore grinding refers to adopt ball mill or rod mill or autogenous tumbling mill that ore is ground.
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| CN102744145A (en) * | 2012-06-18 | 2012-10-24 | 中国矿业大学(北京) | Scrubbing process for diatomaceous earth ores |
| CN103008089A (en) * | 2012-12-05 | 2013-04-03 | 武汉理工大学 | Method for beneficiation and pre-concentration of vanadium from vanadium-containing stone coal |
| CN104475238B (en) * | 2015-01-05 | 2018-02-16 | 长沙有色冶金设计研究院有限公司 | A kind of enrichment method of appositional pattern navajoite |
| CN104941791B (en) * | 2015-07-07 | 2017-06-16 | 湖南有色金属研究院 | A kind of beneficiation method of weathering type bone coal navajoite |
| CN105381869B (en) * | 2015-12-22 | 2018-02-13 | 中国地质科学院矿产综合利用研究所 | Dephosphorization refining method of high-phosphorus molybdenum concentrate |
| CN105597907A (en) * | 2016-01-08 | 2016-05-25 | 中国地质科学院矿产综合利用研究所 | Chemical-adding scrubbing-magnetic separation beneficiation and enrichment method suitable for clay vanadium ore |
| CN108435331A (en) * | 2018-05-12 | 2018-08-24 | 陈才斌 | A kind of safe winning equipment |
| CN109433405B (en) * | 2018-11-06 | 2020-09-18 | 广东省资源综合利用研究所 | Comprehensive utilization method of gem processing production tailings |
| CN110038737A (en) * | 2019-05-17 | 2019-07-23 | 贵州三稀新能源科技股份有限公司 | A method of the silicalite physical upgrading of shale containing lithium |
| CN110216022B (en) * | 2019-07-04 | 2021-04-06 | 长春黄金研究院有限公司 | Targeted dosing method in process of separating polymetallic in sulfide ore flotation |
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