CN106944245A - A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique - Google Patents

A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique Download PDF

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Publication number
CN106944245A
CN106944245A CN201710198874.6A CN201710198874A CN106944245A CN 106944245 A CN106944245 A CN 106944245A CN 201710198874 A CN201710198874 A CN 201710198874A CN 106944245 A CN106944245 A CN 106944245A
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bismuth
molybdenum
fluorite
flotation
concentrate
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CN201710198874.6A
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黄洪兴
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JIANGXI HONGXING BENEFICIATION EQUIPMENT MANUFACTURING Co Ltd
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JIANGXI HONGXING BENEFICIATION EQUIPMENT MANUFACTURING Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage

Abstract

Technique is selected the invention discloses a kind of complicated many golden metallic ores of W, mo, bi fluorite, is comprised the following steps:S1, it is high according to molybdenum, bismuth is low, the characteristics of sulphur is high, molybdenum, bismuth, sulphur roughing uses Bulk flotation scheme, roughing obtains the pyrite bulk concentrate that molybdenum bismuth and a part are easily floated, press down sulphur flotation molybdenum bismuth again, molybdenum bismuth bulk concentrate presses down bismuth and floats molybdenum again, S2, flotation of pyrite removes containing sulfur minerals, so as to lower step tungsten mineral flotation, S3, magnetic separation recovery iron mineral, S4, tungsten flotation, using efficient gangue mineral inhibitor, obtain the tungsten rough concentrate of roughing section W03 contents 6% 14%, heating concentration obtains tungsten concentrate product, S5, fluorite, regrinded using fluorite concentrate, part chats is abandoned, part Concentrated returning of middling method obtains qualified fluorite concentrate, S6, garnet magnetic separation or gravity treatment are reclaimed.The complicated many golden metallic ores of the W, mo, bi fluorite select technique, solve the problem of polymetallic ore body mineral resources can not obtain effective synthetical recovery.

Description

A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique
Technical field
The present invention relates to mineral processing technology field, specially a kind of complicated many golden metallic ores of W, mo, bi fluorite select technique.
Background technology
Tungsten, molybdenum, bismuth, iron, fluorite complex multi-metal ore deposit are that valuable mineral contains in large-scale skarn type polymetallic ore body, ore Amount is more, and embedding cloth relation is complicated, and ore type is rare both at home and abroad, ore dressing circle at home and abroad of valuable mineral synthetical recovery ore-dressing technique Belong to problem.Persimmon bamboo plantation tungsten, molybdenum, bismuth, fluorite polymetallic ore were once listed in national " eight or five ", " 95 ", Eleventh Five-Year Plan science and technology Brainstorm project carries out tackling of key scientific and technical problems 0 by Duo Jia R&D institutions, with same type mine bismuth-containing (0.16%), W03(0.6%)、CaF2 (> 017.0%) to compare, tungsten, molybdenum, bismuth, fluorite valuable mineral content are much lower in ore body, and average grade is:Small-sized flow test Sample ore W03 0.35%, Mo 0.14%, Bi 0.06%, Sn 0.035%, TFe 8.20%, CaF2 12.11%, commerical test Sample ore W03 0.25%, Mo 0.09%, Bi 0.04%, Fe 16.0%, also the mineral kind such as garnet;And sulfur-bearing in ore (1.1%), arsenic (0.44%) is higher.Inlay in close relations between mineral, symbiosis exists sulphide ore from each other with oxide ore, sulphide ore Together, ore oxidation degree is high, valuable mineral be in thickness misproportion dissemination, ore calcium mineral it is wide in variety, calcium mineral it Between FLOTATION SEPARATION it is difficult, therefore ore dressing difficulty is very big.
There are two type ore bodies in the mine, and a kind of W, mo, bi fluorite polymetallic ore low for iron content is another for iron content height Iron W, mo, bi fluorite polymetallic ore, tungsten bi content therein is lower;The research to former ore body is discussed herein is, but Its ore-dressing technique can equally meet latter ore body ore dressing requirement, according to the results of mineralogy, tungstenic in ore body sample, A variety of valuable metal mineral such as molybdenum, bismuth, iron, fluorite, 1.4 essential mineral feature molybdenites are accidental to be in mainly in foliaceous, strip It is granular.Molybdenite disseminated grain size is uneven, mainly in 0.02-0.2mm, and thick person is up to several millimeters, thin below person 0.02mm.Brightness bismuth Ore deposit is mainly in the form of a column, acinous, is often distributed in molybdenite edge or is wrapped up by molybdenite, is also distributed in pomegranate in tiny shot shape In the gangue substrate such as sub- stone, diopside, the tremolite, fluorite.Disseminated grain size is much thinner than molybdenite, mainly in below 0.07mm. Scheelite is mainly distributed in skarns gangue mineral in pelletized form, and disseminated grain size is uneven, seemingly has the trend in polarization, slightly More than person 0.04mm, it is indivedual up to 1 more than mm, below particulate person 0.02mm, or even below O.OO5mm, with fluorite, seed of pomegranate The relations such as stone, diopside, calcite, mica, mispickel are closer.Cassiterite is in mainly microfine dispersed distribution.With the tremolite, saturating brightness The mineral relation such as stone, mica, chlorite, magnetic iron ore, galena, pyrite, mispickel is closer, and disseminated grain size is tiny, exists more Below 0.02mm.Fluorite is widely distributed in ore, often assembles in pelletized form, and accidental is in fine pulse-like.Disseminated grain size thickness is uneven, Thicker person is more in more than 0.07mm, and agglomerate is up to several centimeters, and a small amount of granularity is relatively thin in below 0.04mm and scheelite, diopside etc. Ore deposit adhesion.Magnetic iron ore is in mainly acinous dispersed distribution, and partial oxidation is into mushketovite and bloodstone.Bloodstone, limonite master Will in pelletized form, acinous, it is closer with the mineral relation such as pyrite, melnikovite, calcite, chlorite.All it is synthetical recovery Relation is inlayed between object, but various mineral complicated, disseminated grain size thickness is extremely uneven, thus it is main consideration is that: Valuable mineral kind is effectively reclaimed, obtain higher mineral comprehensive reutilization rate;Obtaining qualified concentrate containing production Under conditions of product, product recovery rate is improved as far as possible;Feasibility, the operability of technique implemented at the scene are considered simultaneously Deng.
Somewhere tungsten, molybdenum, bismuth, fluorite ore body belong to complicated difficult select between polymetallic ore, valuable mineral, valuable mineral and gangue ore deposit It is in thickness misproportion dissemination between thing;Especially tungsten, bismuth, fluorite content are low, and sulphur, arsenic, calcium mineral content are high, difficult choosing in bismuth mineral Bismite, basobismutite content account for 39.7%, valuable mineral synthetical recovery difficulty is big.For the polymetallic ore body, a kind of tungsten is designed The complicated many golden metallic ores of bismuth fluorite select technique, mineral resources is obtained effective synthetical recovery for the purpose of the present invention.
The content of the invention
(One)The technical problem of solution
In view of the shortcomings of the prior art, technique is selected the invention provides a kind of complicated many golden metallic ores of W, mo, bi fluorite, solved The problem of polymetallic ore body mineral resources can not obtain effective synthetical recovery.
(Two)Technical scheme
To realize object above, the present invention is achieved by the following technical programs:
A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique, comprise the following steps:
S1, according to the characteristics of molybdenum is high, bismuth is low, sulphur is high, molybdenum, bismuth, sulphur roughing use Bulk flotation scheme, and roughing obtains molybdenum bismuth and one Divide easily floating pyrite bulk concentrate, then press down sulphur flotation molybdenum bismuth, molybdenum bismuth bulk concentrate presses down bismuth and floats molybdenum again.
S2, flotation of pyrite removing containing sulfur minerals, so as to lower step tungsten mineral flotation.
S3, magnetic separation recovery iron mineral.
S4, tungsten flotation, using efficient gangue mineral inhibitor, obtain roughing section W03 contents 6%-14% tungsten rough concentrate, plus Temperature is selected to obtain tungsten concentrate product.
S5, fluorite, are regrinded using fluorite concentrate, and part chats is abandoned, and part Concentrated returning of middling method is closed Lattice fluorite concentrate.
S6, garnet magnetic separation or gravity treatment are reclaimed.
It is preferred that, feed particle size accounts for 83.24% for 74 μm of mineral, and whole process used based on flotation, be aided with magnetic separation or again Ore-dressing technique is selected, tungsten, molybdenum, bismuth, iron, fluorite, 6 kinds of concentrate of garnet are obtained.
(Three)Beneficial effect
Technique is selected the invention provides a kind of complicated many golden metallic ores of W, mo, bi fluorite, possesses following beneficial effect:
(1), the much more complicated golden metallic ores of the W, mo, bi fluorite select technique, ore-dressing technique scheme 1 is to the magnetic of one magnetic separation of flotation, one flotation one A flotation is selected, scheme 2 flotation, one magnetic separation, one flotation, one gravity treatment, two kinds of process integrations compare, it is determined that feed particle size accounts for for 74 μm 83.24%, whole process based on flotation, be aided with magnetic separation, obtain tungsten, molybdenum, bismuth, iron, fluorite, 6 kinds of concentrate of garnet, 6 kinds of essences Mineral products gross production rate more than 59.7%, mine tailing loss ratio 40.3% makes mineral resources obtain maximally effective synthetical recovery.
(2), the much more complicated golden metallic ores of the W, mo, bi fluorite select technique, for the high bismuth of molybdenum content in raw ore it is low the characteristics of, adopt Floating molybdenum bismuth with suppression sulphur, molybdenum bismuth separates selected separating technology again;Fluorite using unique roughing and middling recurrence ore-dressing technique, Special efficacy calcic gangue mineral inhibitor;It is aided with the good gangue inhibitor of efficient selective in tungsten flotation;Use based on flotation, magnetic Elect auxiliary mineral processing circuit as, realize the synthetical recovery to valuable metal in polymetallic ore, solve polymetallic ore body ore deposit The problem of production resource can not obtain effective synthetical recovery.
Brief description of the drawings
Fig. 1 is principle flow chart of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme:
A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique, comprise the following steps:
S1, according to the characteristics of molybdenum is high, bismuth is low, sulphur is high, molybdenum, bismuth, sulphur roughing use Bulk flotation scheme, and roughing obtains molybdenum bismuth and one Divide easily floating pyrite bulk concentrate, then press down sulphur flotation molybdenum bismuth, molybdenum bismuth bulk concentrate presses down bismuth and floats molybdenum again;
S2, flotation of pyrite removing containing sulfur minerals, so as to lower step tungsten mineral flotation;
S3, magnetic separation recovery iron mineral;
S4, tungsten flotation, using efficient gangue mineral inhibitor, obtain roughing section W03 contents 6%-14% tungsten rough concentrate, heating essence Choosing obtains tungsten concentrate product;
S5, fluorite, are regrinded using fluorite concentrate, and part chats is abandoned, and part Concentrated returning of middling method obtains qualified firefly Stone concentrate;
S6, garnet magnetic separation or gravity treatment are reclaimed.
Feed particle size accounts for 83.24% for 74 μm of mineral, and whole process uses based on flotation, is aided with magnetic separation or gravity treatment ore dressing Technique, obtains tungsten, molybdenum, bismuth, iron, fluorite, 6 kinds of concentrate of garnet.
Molybdenum-bismuth mineral flotation:Diffeential floatation, bulk flotation, Bulk flotation are explored to sulfide flotation scheme and selects three kinds of differences In technological process, molybdenum bismuth controling differential flotation process for copper, in diffeential floatation molybdenum due to flow in add lime suppress pyrite, although Qualified molybdenum concntrate product can be obtained, but is had an impact to the molybdenum concntrate rate of recovery, and because bi content is low during bismuth flotation, selected bubble The bad control of foam, it is difficult to obtain more high-grade bismuth concentrate product;Sulfur content is higher in bulk flotation technique, raw ore, using molybdenum, Secret, sulphur bulk flotation technique, substantial amounts of pyrite is floated in molybdenum bismuth bulk concentrate, the reduction of bulk concentrate molybdenum bi content, is being divided From when to add substantial amounts of vulcanized sodium reagent removal and other inhibitor and suppress pyrite, bismuth mineral etc. so that molybdenum, bismuth, sulphur content are from change Obtain difficult, more concentration times will be increased by obtaining high-grade molybdenum concntrate product;Molybdenum, bismuth, sulphur Bulk flotation select technique, are in technique Middle add selects molybdenum bismuth good, weak to the pyrite collecting ability collecting agent of collecting performance, is added without pyrite inhibitor, makes molybdenum bismuth And the good flotation of pyrite of a part of floatability enters in rougher concentration, the molybdenum bismuth grade in rough concentrate is of a relatively high, is conducive to Separation is selected to be carried out, and obtains high-grade molybdenum concntrate product and low-grade bismuth concentrate product.
Tungsten flotation:Material phase analysis result, scheelite accounts for 84.21 % of tungsten mineral and total W content is not high, and mineral granularity is also In thickness misproportion dissemination, contain in sample containing fluorite, calcite, garnet etc. are substantial amounts of close with scheelite floatability Calcium gangue mineral, making the purification of tungsten mineral becomes abnormal difficult, using floatation process, roughing flotation tungsten ore under the conditions of high alkalinity Thing, adds special efficacy calcic gangue mineral inhibitor LS when rough concentrate is selected, tungsten rough concentrate grade can be made to reach more than 14%, essence Choosing explores ore-dressing technique under heating concentration and normal temperature concentration different condition, and tungsten rough concentrate needs to obtain using heating concentration High tungsten concentrate grade index.
Fluorite:Fluorite is tungsten flotation tailing to ore deposit, is 10.0% containing CaF2, wherein also containing largely and fluorite The calcium mineral such as the close garnet of floatability and calcite so that flotation acquisition high-grade fluorite concentrate is extremely difficult, examination Test research and garnet mineral are reclaimed using first high intensity magnetic separation, improve fluorite Beneficiation Feed Grade and direct flotation fluorite, scheme is not Two kinds of different ore-dressing techniques, two schemes acquisition fluorite concentrate grade is close, but low 2.84% scheme 1 of the rate of recovery of scheme 1 is through too strong magnetic After choosing, substantially reduce the mine-supplying quantity into fluorite, 22.34% fluorite Beneficiation Feed Grade of the only mine-supplying quantity of scheme 2 can be carried Height does not need concentrate regrinding to 38.92%, reduces concentration times, simplification of flowsheet, while obtaining garnet concentrate Product, due to obtaining high-quality fluorite concentrate while ensureing that shake rate of recovery difficulty is very big, research is scanned using selected chats 1+2 Bamboo mat spread on the floor for people to sit in ancient China returns afterwards, remaining chats order returns to technique, improves 28% than the Concentrated returning of middling technique concentrate rate of recovery, flotation obtains fluorite Concentrate can obtain the concentrate product containing CaF2 98.0% after ether magnetic separation again.
Garnet is reclaimed:Reclaim garnet research and probe magnetic separation, gravity treatment two schemes, gravity separation technology beneficiation cost It is low, but the mineral processing index obtained is poor, concentrate operation recovery only 41.65%;Magnetic separation scheme beneficiation cost is higher, but is obtaining While concentrate grade close with gravity treatment scheme, concentrate operation recovery can reach 87.78%.
In summary, the complicated many golden metallic ores of the W, mo, bi fluorite select technique, and ore-dressing technique scheme 1 is to the magnetic separation one of flotation one The flotation of one magnetic separation of flotation one, scheme 2 flotation, one magnetic separation, one flotation, one gravity treatment, two kinds of process integrations compare, it is determined that feed particle size is 74 μm account for 83.24%, whole process based on flotation, be aided with magnetic separation, obtain tungsten, molybdenum, bismuth, iron, fluorite, 6 kinds of concentrate of garnet, 6 kinds of concentrate product gross production rates more than 59.7%, mine tailing loss ratio 40.3% makes mineral resources obtain maximally effective synthetical recovery.
Also, the characteristics of high bismuth of molybdenum content is low in raw ore is directed to, floating molybdenum bismuth using suppression sulphur, molybdenum bismuth separates selected separation work again Skill;Fluorite is using unique roughing and middling recurrence ore-dressing technique, special efficacy calcic gangue mineral inhibitor;It is auxiliary in tungsten flotation With the good gangue inhibitor of efficient selective;The mineral processing circuit based on flotation, supplemented by magnetic separation is used, is realized to more golden Belong to the synthetical recovery of valuable metal in ore deposit, solve the problem of polymetallic ore body mineral resources can not obtain effective synthetical recovery.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that Also there is other identical element in the process including the key element, method, article or equipment ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understand and these embodiments can be carried out without departing from the principles and spirit of the present invention a variety of changes, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (2)

1. a kind of complicated many golden metallic ores of W, mo, bi fluorite select technique, it is characterised in that:Comprise the following steps:
S1, according to the characteristics of molybdenum is high, bismuth is low, sulphur is high, molybdenum, bismuth, sulphur roughing use Bulk flotation scheme, and roughing obtains molybdenum bismuth and one Divide easily floating pyrite bulk concentrate, then press down sulphur flotation molybdenum bismuth, molybdenum bismuth bulk concentrate presses down bismuth and floats molybdenum again;
S2, flotation of pyrite removing containing sulfur minerals, so as to lower step tungsten mineral flotation;
S3, magnetic separation recovery iron mineral;
S4, tungsten flotation, using efficient gangue mineral inhibitor, obtain roughing section W03 contents 6%-14% tungsten rough concentrate, heating essence Choosing obtains tungsten concentrate product;
S5, fluorite, are regrinded using fluorite concentrate, and part chats is abandoned, and part Concentrated returning of middling method obtains qualified firefly Stone concentrate;
S6, garnet magnetic separation or gravity treatment are reclaimed.
2. the complicated many golden metallic ores of a kind of W, mo, bi fluorite according to claim 1 select technique, it is characterised in that:Selected grain The mineral spent for 74 μm account for 83.24%, and whole process uses based on flotation, is aided with magnetic separation or gravity treatment ore-dressing technique, obtain tungsten, molybdenum, Bismuth, iron, fluorite, 6 kinds of concentrate of garnet.
CN201710198874.6A 2017-03-29 2017-03-29 A kind of complicated many golden metallic ores of W, mo, bi fluorite select technique Pending CN106944245A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109225605A (en) * 2018-08-28 2019-01-18 湖南柿竹园有色金属有限责任公司 A kind of method of molybdenum bismuth roughing
CN109821649A (en) * 2019-01-31 2019-05-31 包头钢铁(集团)有限责任公司 The method of fluorite is sorted in a kind of rare-earth tailing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489393A (en) * 2011-12-04 2012-06-13 华南师范大学 Ore dressing method for separation and recovery of scheelite and fluorite from sulfur flotation tailings of polymetallic ore
CN102580857A (en) * 2012-02-17 2012-07-18 湖南有色金属研究院 Concentration method of low-content molybdenum and bismuth in polymetallic ore
CN103691566A (en) * 2013-12-17 2014-04-02 广西大学 Method for performing flotation separation on garnet from magnetic separation brown iron ore concentrate
CN105413855A (en) * 2015-12-30 2016-03-23 中南大学 Method for cleaning and purification of tungsten rough concentrate
CN105597946A (en) * 2016-01-07 2016-05-25 中南大学 Comprehensive recovery method for tungsten accompanying fluorite resources

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489393A (en) * 2011-12-04 2012-06-13 华南师范大学 Ore dressing method for separation and recovery of scheelite and fluorite from sulfur flotation tailings of polymetallic ore
CN102580857A (en) * 2012-02-17 2012-07-18 湖南有色金属研究院 Concentration method of low-content molybdenum and bismuth in polymetallic ore
CN103691566A (en) * 2013-12-17 2014-04-02 广西大学 Method for performing flotation separation on garnet from magnetic separation brown iron ore concentrate
CN105413855A (en) * 2015-12-30 2016-03-23 中南大学 Method for cleaning and purification of tungsten rough concentrate
CN105597946A (en) * 2016-01-07 2016-05-25 中南大学 Comprehensive recovery method for tungsten accompanying fluorite resources

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109225605A (en) * 2018-08-28 2019-01-18 湖南柿竹园有色金属有限责任公司 A kind of method of molybdenum bismuth roughing
CN109821649A (en) * 2019-01-31 2019-05-31 包头钢铁(集团)有限责任公司 The method of fluorite is sorted in a kind of rare-earth tailing

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