CN105233974B - Magnetic separation recovery mine tailing technique is regrinded in fine grinding magnetic separation roasting - Google Patents

Magnetic separation recovery mine tailing technique is regrinded in fine grinding magnetic separation roasting Download PDF

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Publication number
CN105233974B
CN105233974B CN201510742449.XA CN201510742449A CN105233974B CN 105233974 B CN105233974 B CN 105233974B CN 201510742449 A CN201510742449 A CN 201510742449A CN 105233974 B CN105233974 B CN 105233974B
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magnetic
sections
concentrate
weak
feeds
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CN105233974A (en
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刘晓明
窦国语
杨晓峰
刘双安
宋均利
梅灿国
袁哲
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Angang Group Mining Co Ltd
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Angang Group Mining Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/52Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

Abstract

Magnetic separation recovery mine tailing technique is regrinded the present invention relates to a kind of fine grinding magnetic separation roasting, it is characterized in that using three stages of magnetic separation, three sections of cyclone closed circuit grinding classification operations, roasting, regrind magnetic separation, the present invention after two sections of independent ore grindings of cartridge type magnetic essence to more than granularity 0.025mm90% through one section of weak magnetic to sorting, strongly magnetic mineral is set to realize sufficiently effective separate with weak magnetic mineral and gangue, one section of weak magnetic essence directly feeds follow-up weak magnetic sorting operation, while ensure that the iron mineral rate of recovery, reduce roasting operation treating capacity, obtain grade more than 65%, the concentrate of yield more than 9%, tailings grade 5%~7%, the good index of metal recovery rate more than 53%.

Description

Magnetic separation recovery mine tailing technique is regrinded in fine grinding magnetic separation-roasting-
Technical field
The invention belongs to iron ore beneficiation technical field, particularly a kind of fine grinding magnetic separation-roasting-regrinds magnetic separation recovery mine tailing work Skill.
Background technology
At present using select factory's generation the 10%~15% of " stage grinding, coarse and fine separation, weight-magnetic-floating combined process flow ", ore grinding Granularity is mainly russet iron and Armco magnetic iron for the iron mineral being lost in the synthesis mine tailing of -0.074mm60%~70%, to comprehensive mine tailing The preferable technique of the current effect of recovery be:Scanned with integrating mine tailing using two sections of spiral chutes, permanent magnetism, spiral shell essence, permanent magnetism essence are mixed It is combined into after rough concentrate, rough concentrate ore grinding and uses weak magnetic, Qiang Ci again, reverse flotation or centrifuge technique is selected.Using " spiral chute, forever Magnetic-ore grinding-strong magnetic, centrifuge technique " flow integrates ore deposit to bloodstone and sorted, and is 92.5%- in grinding particle size The sorting index obtained during 0.046mm is:To ore deposit grade 12.63%, concentrate grade 67.95%, concentrate yield 4.00%, the rate of recovery 21.52%, tailings grade 10.33%, but be up to due to integrating distributive law of the iron mineral in mine tailing in below 0.037mm grades More than 70%, wherein the distributive law in below 0.01mm grades is 10%~20%, the main iron mineral granularity in comprehensive mine tailing is very Carefully.Therefore tailings grade is higher after comprehensive mine tailing is sorted through " spiral chute, permanent magnetism-ore grinding-strong magnetic, centrifuge technique " asks Topic can not be solved, and cause the rate of recovery to be difficult to further raising." magnetic separation-roasting-magnetic separation process " to mine tailing using strong magnetic by being entered Row is sorted to roasted ore using weak magnetic again after obtained high intensity magnetic mineral is all calcined after sorting, and although the technique carry The high rate of recovery, but because Armco magnetic iron distributive law is 15%~40% in mine tailing, and this portioned product should not enter into complex process(Cause Need to concentrate before roasting, filter, dry), the high roasting technique of high energy consumption, cost handled.
The content of the invention
It can be mainly superfine grade to target minreal the mine tailing containing a variety of iron minerals enters it is an object of the invention to provide a kind of Row economical and effective is reclaimed, so that the raising rate of recovery is realized, while the fine grinding magnetic separation-roasting-for reducing effective recovery of energy consumption is regrinded Magnetic separation recovery mine tailing technique.
The purpose of the present invention is realized by following technical proposals:
Magnetic separation recovery mine tailing technique is regrinded in the fine grinding magnetic separation-roasting-of the present invention, including by grade is 10%~15%, granularity One section of drum magnetic separator progress magnetic concentration working, the tail of one section of drum magnetic separator are fed for the synthesis mine tailing of -0.074mm60%~70% Ore deposit feeds one section of vertical-ring magnetic separator and carries out magnetic concentration working, the concentrate conjunction of the concentrate and one section of vertical-ring magnetic separator of one section of drum magnetic separator And feed the closed circuit grinding classification operation that one section of cyclone and one section of ball mill are constituted, i.e.,:The concentrate of one section of drum magnetic separator and The concentrate of one section of vertical-ring magnetic separator, which merges, feeds one section of cyclone, and the sand setting of one section of cyclone feeds one section of ball milling, one section of ball milling Ore discharge return one section of cyclone;The overflow of 90%~95%-0.074mm of granularity one section of cyclone feeds two sections of drum magnetic separators Carry out magnetic concentration working, it is characterised in that also comprise the following steps:
1)The concentrate of two sections of drum magnetic separators feeds two sections of cyclones, and the sand setting of two sections of cyclones feeds two sections of tower mills, two The ore discharge of section tower mill returns to two sections of cyclones and constitutes closed circuit grinding system, and secondary grinding graded operation product granularity is 90%- More than 0.025mm, the overflow of two sections of cyclones feeds one section of weak magnetic and sorted, one section of weak magnetic tail ore deposit and two sections of cartridge type magnetic separation Tail ore deposit feeds one section of concentrator and carries out concentration operation together, and the overflow of one section of concentrator is used as recirculated water, and concentration is 30% The underflow of~40% one section of close machine feeds two sections of vertical-ring magnetic separators and carries out magnetic concentration working, and the mine tailing of two sections of vertical-ring magnetic separators throws tail, The concentrate of two sections of vertical-ring magnetic separators feeds two sections of concentrators and carries out concentration operation;
2)The overflow of two sections of concentrators is used as recirculated water, and the underflow by concentration for 55%~60% two sections of concentrators is given Enter filter to be filtered, obtain filter cake for rough concentrate, its moisture content is 9%~13%, and grade is that 25%~33%, yield is 15% ~20%;
3)Described rough concentrate is fed into suspending magnetization roasting furnace by belt and carries out suspension roasting operation, its sintering temperature is 500 DEG C~600 DEG C, make after rough concentrate moisture content reaches 2%, then be passed through CO reducing gas and be reduced to Armco magnetic iron distributive law and exist More than 88% Armco magnetic iron mineral;
4)Armco magnetic iron mineral of the post-job Armco magnetic iron distributive law of suspension roasting more than 88% are fed into three sections of eddy flows Device, the sand setting of three sections of cyclones feeds three sections of tower mills, and the ore discharge of three sections of tower mills returns to three sections of cyclones and constitutes closed circuit grinding system, Three sections of grinding-classification operation product granularities are more than 90%-0.025mm, and the overflow of three sections of cyclones feeds two sections of weak magnetic machines;
5)One section of weak magnetic machine and two sections of weak magnetic machine concentrate, which merge, feeds three sections of weak magnetic machines, and the concentrate of three sections of weak magnetic machines feeds four Section weak magnetic machine, the concentrate of four sections of weak magnetic machines feeds five sections of weak magnetic machines, and five sections of weak magnetic machine concentrate are final concentrate, its concentrate grade More than 65%, metal recovery rate more than 53%, one section of vertical-ring magnetic separator, two sections of vertical-ring magnetic separator mine tailings and one section of weak magnetic tail ore deposit, Two sections of weak magnetic tail ore deposits, three sections of weak magnetic tail ore deposits, four sections of weak magnetic tail ore deposits and five sections of weak magnetic tail ore deposits merge into grade 5%~7% True tailings.
The magnetic induction intensity of one section of described drum magnetic separator is 300~500mT, and the magnetic induction of one section of vertical-ring magnetic separator is strong Spend 300~500mT.
The magnetic induction intensity of two sections of described drum magnetic separators is 150~180mT, and the magnetic induction of two sections of vertical-ring magnetic separators is strong Spend 300~500mT.
Five sections of described weak magnetic machines use magnetovibration highly-effective magnetic separator.
It is an advantage of the invention that:
The present invention-is calcined-as a result of above-mentioned fine grinding magnetic separation regrinds magnetic separation recovery mine tailing technique, in head grade 10% Under conditions of~15%, final more than grinding particle size -0.025mm90%, individually ore grindings smart to two sections of cartridge type magnetic to granularity - Sorted after more than 0.025mm90% through one section of weak magnetic, strongly magnetic mineral is realized sufficiently effective point with weak magnetic mineral and gangue From one section of weak magnetic essence directly feeds follow-up weak magnetic sorting operation, while ensure that the iron mineral rate of recovery, reduces roasting and makees Industry treating capacity, obtains grade more than 65%, the concentrate of yield more than 9%, tailings grade 5%~7%, metal recovery rate more than 53% Good index, the technique realizes the high efficiente callback of iron in mine tailing, and its rate of recovery improves more than 30 percentage points compared with traditional handicraft, Simultaneously save production cost, be suitable for be mainly to target minreal superfine grade iron mineral mine tailing carry out economical and effective recovery.
Brief description of the drawings
Fig. 1 regrinds the flow chart of magnetic separation recovery mine tailing technique for the preenrichment-fine grinding is calcined-of the present invention.
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, magnetic separation recovery mine tailing technique is regrinded in the fine grinding magnetic separation-roasting-of the present invention, including by grade it is 10% ~15% granularity feeds one section of drum magnetic separator for the synthesis mine tailing of -0.074mm60%~70% and carries out magnetic concentration working, one section of cartridge type The mine tailing of magnetic separator feeds one section of vertical-ring magnetic separator and carries out magnetic concentration working, the concentrate of one section of drum magnetic separator and one section of vertical ring magnetic separation The concentrate of machine merges the closed circuit grinding classification operation for feeding that one section of cyclone and one section of ball mill are constituted, i.e.,:One section of cartridge type magnetic separation The concentrate of the concentrate of machine and one section of vertical-ring magnetic separator, which merges, feeds one section of cyclone, and the sand setting of one section of cyclone feeds one section of ball Mill, the ore discharge of one section of ball milling returns to one section of cyclone;The overflow of 90%~95%-0.074mm of granularity one section of cyclone feeds two Section drum magnetic separator carries out magnetic concentration working, it is characterised in that also comprise the following steps:
1)The concentrate of two sections of drum magnetic separators feeds two sections of cyclones, and the sand setting of two sections of cyclones feeds two sections of tower mills, two The ore discharge of section tower mill returns to two sections of cyclones and constitutes closed circuit grinding system, and secondary grinding graded operation product granularity is 90%- More than 0.025mm, iron mineral degree of dissociation reaches more than 80%, and the overflow of two sections of cyclones feeds one section of weak magnetic and sorted, and sorts It is mainly strongly magnetic mineral in latter section of inferior fine magnetite concentrate, mainly monomer gangue, weak magnetic mineral and company in one section of weakly magnetic tailings Raw body, one section of weak magnetic tail ore deposit feeds one section of concentrator together with two sections of drum magnetic separator mine tailings and carries out concentration operation, and one section dense The overflow of close machine is used as recirculated water, and concentration feeds two sections of vertical-ring magnetic separator progress for the underflow of 30%~40% one section of close machine Magnetic concentration working, the mine tailing of two sections of vertical-ring magnetic separators throws tail, and the concentrate of two sections of vertical-ring magnetic separators feeds two sections of concentrators and concentrated Operation;
The magnetic induction intensity of one section of described drum magnetic separator is 300~500mT, and the magnetic induction of one section of vertical-ring magnetic separator is strong Spend 300~500mT.
The magnetic induction intensity of two sections of described drum magnetic separators is 150~180mT, and the magnetic induction of two sections of vertical-ring magnetic separators is strong Spend 300~500mT.
2)The overflow of two sections of concentrators is used as recirculated water, and the underflow by concentration for 55%~60% two sections of concentrators is given Enter filter to be filtered, obtain filter cake for rough concentrate, its moisture content is 9%~13%, grade be 25%~33%, yield be 15~ 20%;
3)Described rough concentrate is fed into suspending magnetization roasting furnace by belt and carries out suspension roasting operation, its sintering temperature is 500 DEG C~600 DEG C, make after rough concentrate moisture content reaches 2%, then be passed through CO reducing gas and be reduced to Armco magnetic iron distributive law and exist More than 88% Armco magnetic iron mineral;
4)Armco magnetic iron mineral of the post-job Armco magnetic iron distributive law of suspension roasting more than 88% are fed into three sections of eddy flows Device, the sand setting of three sections of cyclones feeds three sections of tower mills, and the ore discharge of three sections of tower mills returns to three sections of cyclones and constitutes closed circuit grinding system, Three sections of grinding-classification operation product granularities are more than 90%-0.025mm, and the overflow of three sections of cyclones feeds two sections of weak magnetic machines;
5)One section of weak magnetic machine and two sections of weak magnetic machine concentrate, which merge, feeds three sections of weak magnetic machines, and the concentrate of three sections of weak magnetic machines feeds four Section weak magnetic machine, the concentrate of four sections of weak magnetic machines feeds five sections of weak magnetic machines, and five sections of described weak magnetic machines use magnetovibration highly-effective magnetic separator, Five sections of weak magnetic machine concentrate are final concentrate, its concentrate grade more than 65%, metal recovery rate more than 53%, one section of vertical-ring magnetic separator, Two sections of vertical-ring magnetic separator mine tailings and one section of weak magnetic tail ore deposit, two sections of weak magnetic tail ore deposits, three sections of weak magnetic tail ore deposits, four sections of weak magnetic tails Ore deposit and five sections of weak magnetic tail ore deposits merge into the true tailings of grade 5%~7%.
The present invention, which is sorted in area, some magnetic-assemblying areas, Shan Zhen areas, the magnetic ore deposit when ore pulp enters sorting area by magnetic-assemblying area Thing formation magnetic linkage, is smashed, non magnetic ore is overflowed with ascending current again again when magnetic linkage moves downward through Shan Zhen areas, this Sample shakes by multiple poly- magnetic, sudden strain of a muscle, is sufficiently separated gangue and iron mineral, realizes effective recovery to superfine rank iron mineral.
The parameter such as grinding particle size, magnetic field intensity, thickness grading granularity of the present invention, will pass through according to the property of ore Experimental studies results are determined.
Using the technique of the present invention, the high efficiente callback of iron in mine tailing is realized, its rate of recovery improves 30 compared with traditional handicraft It is more than percentage point.

Claims (4)

1. a kind of fine grinding magnetic separation-roasting-regrinds magnetic separation recovery mine tailing technique, including by grade be 10%~15% granularity for- The synthesis mine tailing that 0.074mm accounts for 60%~70% feeds one section of drum magnetic separator progress magnetic concentration working, the tail of one section of drum magnetic separator Ore deposit feeds one section of vertical-ring magnetic separator and carries out magnetic concentration working, the concentrate conjunction of the concentrate and one section of vertical-ring magnetic separator of one section of drum magnetic separator And feed the closed circuit grinding classification operation that one section of cyclone and one section of ball mill are constituted, i.e.,:The concentrate of one section of drum magnetic separator and The concentrate of one section of vertical-ring magnetic separator, which merges, feeds one section of cyclone, and the sand setting of one section of cyclone feeds one section of ball milling, one section of ball milling Ore discharge return one section of cyclone;Granularity is that the overflow for one section of cyclone that -0.074mm accounts for 90%~95% feeds two sections of cartridge types Magnetic separator carries out magnetic concentration working, it is characterised in that also comprise the following steps:
1)The concentrate of two sections of drum magnetic separators feeds two sections of cyclones, and the sand setting of two sections of cyclones feeds two sections of tower mills, two sections of towers The ore discharge of mill returns to two sections of cyclones and constitutes closed circuit grinding system, and secondary grinding graded operation product granularity is that -0.025mm is accounted for More than 90%, the overflow of two sections of cyclones feeds one section of weak magnetic and sorted, one section of weak magnetic tail ore deposit and two sections of drum magnetic separator tails Ore deposit feeds one section of concentrator and carries out concentration operation together, and the overflow of one section of concentrator is used as recirculated water, and concentration is 30~40% The underflow of one section of concentrator feed two sections of vertical-ring magnetic separators and carry out magnetic concentration workings, the mine tailing of two sections of vertical-ring magnetic separators throws tail, two The concentrate of section vertical-ring magnetic separator feeds two sections of concentrators and carries out concentration operation;
2)The overflow of two sections of concentrators is used as recirculated water, and the underflow by concentration for 55%~60% two sections of concentrators was fed Filter is filtered, and obtains filter cake for rough concentrate, and its moisture content is 9%~13%, grade be 25%~33%, yield be 15%~ 20%;
3)Described rough concentrate is fed into suspending magnetization roasting furnace by belt and carries out suspension roasting operation, its sintering temperature is 500 DEG C~600 DEG C, make after rough concentrate moisture content reaches 2%, then be passed through CO reducing gas to be reduced to Armco magnetic iron distributive law 88% Armco magnetic iron mineral above;
4)Armco magnetic iron mineral of the post-job Armco magnetic iron distributive law of suspension roasting more than 88% are fed into three sections of cyclones, The sand setting of three sections of cyclones feeds three sections of tower mills, and the ore discharge of three sections of tower mills returns to three sections of cyclones and constitutes closed circuit grinding system, three Section grinding-classification operation production granularity is that -0.025mm accounts for more than 90%, and the overflow of three sections of cyclones feeds two sections of weak magnetic machines;
5)One section of weak magnetic machine and two sections of weak magnetic machine concentrate merge the three sections of weak magnetic machines that feed, the concentrate of three sections of weak magnetic machines feed four sections it is weak Magnetomechanical, the concentrate of four sections of weak magnetic machines feeds five sections of weak magnetic machines, and five sections of weak magnetic machine concentrate are final concentrate, its concentrate grade 65% with On, metal recovery rate more than 53%, one section of vertical-ring magnetic separator, two sections of vertical-ring magnetic separator mine tailings and one section of weak magnetic tail ore deposit, two sections it is weak Magnetomechanical mine tailing, three sections of weak magnetic tail ore deposits, four sections of weak magnetic tail ore deposits and five sections of weak magnetic tail ore deposits merge into the final of grade 5%~7% Mine tailing.
2. fine grinding magnetic separation-roasting-according to claim 1 regrinds magnetic separation recovery mine tailing technique, it is characterised in that described The magnetic induction intensity of one section of drum magnetic separator is 300~500mT, 300~500mT of magnetic induction intensity of one section of vertical-ring magnetic separator.
3. fine grinding magnetic separation-roasting-according to claim 1 regrinds magnetic separation recovery mine tailing technique, it is characterised in that described The magnetic induction intensity of two sections of drum magnetic separators is 150~180mT, 300~500mT of magnetic induction intensity of two sections of vertical-ring magnetic separators.
4. fine grinding magnetic separation-roasting-according to claim 1 regrinds magnetic separation recovery mine tailing technique, it is characterised in that described Five sections of weak magnetic machines use magnetovibration highly-effective magnetic separator.
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CN106362858A (en) * 2016-10-14 2017-02-01 鞍钢集团矿业有限公司 Process for extracting cement-replacing superfine iron tailing powder from iron tailings
CN107096638A (en) * 2017-06-16 2017-08-29 鞍钢集团矿业有限公司 A kind of iron ore composite ore point mill, sorting, magnetic-gravity separation technique
CN107385199B (en) * 2017-07-11 2019-04-26 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of hardly possible ore dressing magnetizing roast dry grinding dry separation craft
CN107597430A (en) * 2017-08-28 2018-01-19 鞍钢集团矿业有限公司 A kind of magnetic reconnection for handling iron tailings closes ore-dressing technique
CN108405179A (en) * 2018-03-07 2018-08-17 鞍钢集团矿业有限公司 A kind of method of magnetic separation-roasting-magnetic separation process recycling magnetic tailing

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1832055A1 (en) * 1990-01-09 1993-08-07 Dn Gornyj I Im Artema Method for magnetic beneficiation of magnetite and mixed iron ores
CN102284359A (en) * 2011-08-08 2011-12-21 鞍钢集团矿业公司 Process for roasting, stage grinding, coarse-fine grading and reselection-magnetic separation of hematite
CN102728453A (en) * 2012-06-17 2012-10-17 鞍钢集团矿业公司 New technology for sorting lean hematite and magnetite orecontaining iron carbonate
CN104128259A (en) * 2014-07-28 2014-11-05 鞍钢集团矿业公司 Simple magnetic separation process for Anshan type iron carbonate-containing lean magnetite ore
CN104437827A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Specularite dust ore dressing technology
CN104437826A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Separation technology of specularite after reduction roasting
CN104607308A (en) * 2015-01-29 2015-05-13 鞍钢集团矿业公司 Beneficiation method for high carbonate iron ore
CN104726690A (en) * 2015-03-30 2015-06-24 东北大学 Hematite-siderite-limonite mixed iron ore three-stage suspension roasting-magnetic separation method
CN104785367A (en) * 2015-04-03 2015-07-22 甘肃酒钢集团宏兴钢铁股份有限公司 Mineral separation method for pre-extraction of concentrates from roasted iron ore

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1832055A1 (en) * 1990-01-09 1993-08-07 Dn Gornyj I Im Artema Method for magnetic beneficiation of magnetite and mixed iron ores
CN102284359A (en) * 2011-08-08 2011-12-21 鞍钢集团矿业公司 Process for roasting, stage grinding, coarse-fine grading and reselection-magnetic separation of hematite
CN102728453A (en) * 2012-06-17 2012-10-17 鞍钢集团矿业公司 New technology for sorting lean hematite and magnetite orecontaining iron carbonate
CN104128259A (en) * 2014-07-28 2014-11-05 鞍钢集团矿业公司 Simple magnetic separation process for Anshan type iron carbonate-containing lean magnetite ore
CN104437827A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Specularite dust ore dressing technology
CN104437826A (en) * 2014-09-15 2015-03-25 中冶北方(大连)工程技术有限公司 Separation technology of specularite after reduction roasting
CN104607308A (en) * 2015-01-29 2015-05-13 鞍钢集团矿业公司 Beneficiation method for high carbonate iron ore
CN104726690A (en) * 2015-03-30 2015-06-24 东北大学 Hematite-siderite-limonite mixed iron ore three-stage suspension roasting-magnetic separation method
CN104785367A (en) * 2015-04-03 2015-07-22 甘肃酒钢集团宏兴钢铁股份有限公司 Mineral separation method for pre-extraction of concentrates from roasted iron ore

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Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong

Applicant before: Angang Group Mine Company

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