CN102441483A - Process for recovering ultrafine niobium-tantalum minerals from tantalum-niobium ores - Google Patents

Process for recovering ultrafine niobium-tantalum minerals from tantalum-niobium ores Download PDF

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Publication number
CN102441483A
CN102441483A CN2011102945115A CN201110294511A CN102441483A CN 102441483 A CN102441483 A CN 102441483A CN 2011102945115 A CN2011102945115 A CN 2011102945115A CN 201110294511 A CN201110294511 A CN 201110294511A CN 102441483 A CN102441483 A CN 102441483A
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tantalum
tantalum niobium
niobium concentrate
niobium
magnetic separation
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CN2011102945115A
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黄万抚
李新冬
安占涛
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Jiangxi University of Science and Technology
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Jiangxi University of Science and Technology
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Abstract

The invention discloses process for recovering ultrafine niobium-tantalum minerals from tantalum-niobium ores. The process comprises steps that raw fine slit or secondary fine slit is used for recovering the ultrafine niobium-tantalum minerals, tailings of the tantalum-niobium ores are used for recovering the ultrafine niobium-tantalum minerals, wherein the raw fine slit or secondary fine slit is sorted via a centrifugal machine, and then is treated via a table concentrator so as to obtain ultrafine tantalum-niobium concentrate, ferromagnetism iron of the tailings of the tantalum-niobium ores is removed via low intensity magnetic separation, weak magnetic intermediate products containing the niobium-tantalum minerals are obtained via high intensity magnetic separation, and the ultrafine tantalum-niobium concentrate is obtained via flotation desulfuration and acid leaching of the intermediate products. Combined process that low intensity magnetic separation is adopted at first and high intensity magnetic separation is then adopted and preconcentration process of the centrifugal machine are carried out to treat the ultrafine niobium-tantalum minerals in the raw or secondary fine slit and the tailings, so that impurities can be effectively removed, and micro-fine-particle-level niobium-tantalum concentrate products are obtained. The process has the advantages of simplicity, high environmental benefit, fine economic benefit, safety, environmental protection, capabilities of recovering rare niobium-tantalum resources to the greatest extent and realizing comprehensive utilization of the resources, and the like.

Description

A kind of technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing
Technical field
The present invention relates to a kind of technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing.
Background technology
Tantalum and niobium have fusing point height (tantalum is 2996 ℃, and niobium is 2468 ℃), ductility is good, steam forces down, corrosion resistance is strong and good characteristic such as thermal conductivity height, are the important source material of industry such as electronics, atomic energy, space travel, iron and steel, chemical industry.According to the statistics of international tantalum niobium research center (TIC), the 1996-1999 world is about 8% to tantalum niobium growth of requirement speed, and the growth rate of 2000-2002 is about 12%, estimates that 5-10 can keep the growth more than 15% from now on.In order to satisfy continuous growth, must handle poor, thin, assorted tantalum niobium concentrate stone to tantalum niobium demand.It is the technical barrier that domestic and international ore dressing circle needs to be resolved hurrily that the micro-size fraction heavy mineral reclaims, and makes full use of limited mineral resources, improves tantalum niobium concentrate thing recovery rate in ore-dressing, is efficiently to develop tantalum niobium concentrate resource development in future road.
Summary of the invention
The object of the present invention is to provide a kind of technology simple, environmental benefit is high, the good in economic efficiency technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing.
For realizing above-mentioned purpose; A kind of technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing of the present invention; Comprise: utilize primary thin mud or secondary thin mud to reclaim fine tantalum niobium concentrate thing and utilize the tantalum niobium concentrate gravity tailings to reclaim fine tantalum niobium concentrate thing; Wherein, primary thin mud or secondary thin mud are handled through shaking table and are obtained fine tantalum-niobium concentrate through the centrifuge sorting; The tantalum niobium concentrate gravity tailings is removed the ferromagnetism irony through low intensity magnetic separation earlier, obtains the intermediate products that weak magnetic contains the tantalum niobium concentrate thing with high intensity magnetic separation again, and these intermediate products obtain fine tantalum-niobium concentrate through floatation desulphurization, acidleach.
Further, said primary thin mud is the thin mud that tantalum niobium concentrate Shi Po is produced in broken, and said secondary thin mud is the thin mud that grinding operation produces.
Further, said centrifuge is meant the preparation equipment of various employing centrifugal force reinforcement centrifugations used in the mineral manufacture field.
Further, said mine tailing is that tantalum niobium concentrate is through mine tailing after the gravity treatment or the mine tailing after coarse grain tantalum niobium concentrate, floatation recovery lepidolite are reclaimed in gravity treatment.
Further, the magnetic field intensity scope of said low intensity magnetic separation is 0.1T~0.6T.
Further, the low intensity magnetic separation machine of said low intensity magnetic separation employing comprises various dry type low intensity magnetic separation machines, wet type low intensity magnetic separation machine.
Further, the magnetic field intensity scope of said high intensity magnetic separation is 0.6T~1.6T.
Further, the intensity magnetic separator of said high intensity magnetic separation employing comprises various dry high-magnetic separation machines, Wet-type strong magnetic separator, high gradient magnetic separator.
The present invention is directed to primary or secondary thin mud and the microfine tantalum niobium concentrate thing in mine tailing of tantalum niobium concentrate in producing, adopt first low intensity magnetic separation, the sorting process of high intensity magnetic separation group technology, and centrifuge more effectively to remove impurity, obtain the tantalum-niobium concentrate product of micro-size fraction.It is simple to have technology, and environmental benefit is high, and good in economic efficiency, safety and environmental protection reclaims tantalum niobium scarce resource to greatest extent, realizes characteristics such as comprehensive utilization of resources.
Description of drawings
Fig. 1 utilizes the tantalum niobium concentrate mine tailing to reclaim the process chart of fine tantalum niobium concentrate thing;
Fig. 2 utilizes primary thin mud or secondary thin mud to reclaim the process chart of fine tantalum niobium concentrate thing.
The specific embodiment
Below, with reference to accompanying drawing, the present invention is more comprehensively explained, exemplary embodiment of the present invention has been shown in the accompanying drawing.Yet the present invention can be presented as multiple multi-form, and should not be construed as the exemplary embodiment that is confined to narrate here.But, these embodiment are provided, thereby make the present invention, and scope of the present invention is fully conveyed to those of ordinary skill in the art comprehensively with complete.
Like Fig. 1, shown in Figure 2, a kind of technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing of the present invention comprises: utilize primary thin mud or secondary thin mud to reclaim fine tantalum niobium concentrate thing and utilize the tantalum niobium concentrate mine tailing to reclaim fine tantalum niobium concentrate thing.
Wherein, When utilizing the tantalum niobium concentrate mine tailing to reclaim fine tantalum niobium concentrate thing; The tantalum niobium concentrate mine tailing is that coarse grain tantalum niobium concentrate thing or the mine tailing after coarse grain tantalum niobium concentrate thing, floatation recovery lepidolite are reclaimed in gravity treatment are reclaimed in gravity treatment; This mine tailing is removed the ferromagnetism irony through low intensity magnetic separation earlier, and the magnetic field intensity scope of low intensity magnetic separation is 0.1T~0.6T; Obtain the intermediate products that weak magnetic contains the tantalum niobium concentrate thing with high intensity magnetic separation again, the magnetic field intensity scope of high intensity magnetic separation is 0.6T~1.6T; Intermediate products obtain fine tantalum-niobium concentrate through floatation desulphurization, acidleach.
The low intensity magnetic separation machine that low intensity magnetic separation is adopted comprises various dry type low intensity magnetic separation machines, wet type low intensity magnetic separation machine, and the intensity magnetic separator that high intensity magnetic separation adopts comprises various dry high-magnetic separation machines, Wet-type strong magnetic separator, high gradient magnetic separator etc.
When utilizing primary thin mud or secondary thin mud to reclaim fine tantalum niobium, primary thin mud is the thin mud that tantalum niobium concentrate stone is produced in fragmentation, and secondary thin mud is the thin mud that grinding operation produces.Primary thin mud or secondary thin mud are handled through shaking table and are obtained fine tantalum-niobium concentrate through the centrifuge sorting.Employed centrifuge is meant the centrifuge of various employing centrifugal force reinforcement centrifugations used in the mineral manufacture field.
Process characteristic of the present invention is following:
Figure 2011102945115100002DEST_PATH_IMAGE002
reclaims coarse grain tantalum niobium concentrate thing or the mine tailing process low intensity magnetic separation removal ferromagnetism irony after coarse grain tantalum niobium concentrate thing, floatation recovery lepidolite are reclaimed in gravity treatment through gravity treatment; Adopt high intensity magnetic separation to obtain containing behind the weak magnetism matter product of tantalum niobium again, obtain the micro-size fraction tantalum-niobium concentrate again after the acidleach through floatation desulphurization;
2. primary or secondary thin mud is reclaimed technology through centrifuge, shaking table, obtain the micro-size fraction tantalum-niobium concentrate;
Figure 2011102945115100002DEST_PATH_IMAGE004
low intensity magnetic separation is various dried, wet type low intensity magnetic separation machines;
4. high intensity magnetic separation be variously do, Wet-type strong magnetic separator and high gradient magnetic separator;
5. centrifuge refers to the centrifugation apparatus of various employing centrifugal force reinforcement separating effects used in the mineral manufacture field.
6. technology is simple, and production cost is low; The tantalum niobium rate of recovery is high.
Technology applicable object of the present invention:
tantalum niobium concentrate resource comprehensive is recycled;
The recycling of tantalum niobium resource in the primary or secondary thin mud of tantalum niobium concentrate;
The comprehensive utilization of the various mineral resources of
Figure 239051DEST_PATH_IMAGE004
association tantalum niobium.
Case history:
(1) the Jiangxi tantalum niobium concentrate is tantalum niobium association lepidolite and feldspar, and tantalum niobium grade is low, belongs to the inhomogeneous embedding cloth of thickness, is main with particulate.Existing production technology adopts stage grinding stage grading technology sorting tantalum niobium.The capital equipment that reclaims the employing of tantalum niobium is spiral chute and shaking table, and optimum recovery grade scope is-0.2mm+0.038mm, and the following micro-size fraction tantalum niobium concentrate of right-0.038mm thing recovering effect extreme difference.Therefore; The tantalum niobium that in the recovery tantalum niobium in this ore deposit and the mine tailing behind the lepidolite, loses surpasses 90% and is fine tantalum niobium concentrate thing;--------flotation----acid leaching process reclaims fine tantalum niobium concentrate thing to high intensity magnetic separation, is 0.0138% Ta to head grade to the low intensity magnetic separation in this mine tailing employing technology of the present invention 2O 5Mine tailing, obtain fine tantalum-niobium concentrate grade 22.56% Ta 2O 5, operation recovery is greater than 75%.
(2) Fujian tantalum niobium concentrate industry company has the highest tantalum niobium concentrate mountain of domestic grade, its head grade>0.03%Ta 2O 5, the tantalum-niobium concentrate grade and the rate of recovery that the said firm produces all are in domestic higher level, obtain technical indicator and economic benefit preferably.But because tantalum niobium resource itself exists the mineral disseminated grain size inhomogeneous, than great, property is crisp, very easily produces thin mud in the production process.Production technology is difficult to the fine tantalum niobium concentrate thing in these thin mud is effectively reclaimed at present.Adopting centrifuge the sorting----shaking table among the present invention to reclaim technology, is 0.013% Ta for primary thin mud grade 2O 5, can obtain tantalum-niobium concentrate grade 29.10% Ta 2O 5, the rate of recovery 41.44%; For secondary thin mud head grade 0.014%Ta 2O 5, obtain tantalum-niobium concentrate grade 12.06% Ta 2O 5, the rate of recovery 46.02%.
To sum up two examples it is thus clear that this technology can effectively improve the rate of recovery of fine tantalum niobium concentrate thing, realize the comprehensive recovery of tantalum niobium resource.

Claims (8)

1. technology that from tantalum niobium concentrate, reclaims fine tantalum niobium; It is characterized in that; This technology comprises: utilize primary thin mud or secondary thin mud to reclaim fine tantalum niobium concentrate thing and utilize the tantalum niobium concentrate gravity tailings to reclaim fine tantalum niobium concentrate thing; Wherein, primary thin mud or secondary thin mud are handled through shaking table and are obtained fine tantalum-niobium concentrate through the centrifuge sorting; The tantalum niobium concentrate gravity tailings is removed the ferromagnetism irony through low intensity magnetic separation earlier, obtains the intermediate products that weak magnetic contains the tantalum niobium concentrate thing with high intensity magnetic separation again, and these intermediate products obtain fine tantalum-niobium concentrate through floatation desulphurization, acidleach.
2. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing as claimed in claim 1 is characterized in that, said primary thin mud is the thin mud that tantalum niobium concentrate Shi Po is produced in broken, and said secondary thin mud is the thin mud that grinding operation produces.
3. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing as claimed in claim 2 is characterized in that, said centrifuge is meant the equipment of various employing centrifugal force reinforcement centrifugations used in the mineral manufacture field.
4. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing as claimed in claim 1 is characterized in that, said tantalum niobium concentrate mine tailing is to reclaim coarse grain tantalum niobium or the mine tailing after coarse grain tantalum niobium concentrate thing, floatation recovery lepidolite are reclaimed in gravity treatment through gravity treatment.
5. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing as claimed in claim 4 is characterized in that the magnetic field intensity scope of said low intensity magnetic separation is 0.1T~0.6T.
6. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium as claimed in claim 4 is characterized in that the low intensity magnetic separation machine that said low intensity magnetic separation is adopted comprises various dry type low intensity magnetic separation machines, wet type low intensity magnetic separation machine.
7. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing as claimed in claim 4 is characterized in that the magnetic field intensity scope of said high intensity magnetic separation is 0.6T~1.6T.
8. the technology that from tantalum niobium concentrate, reclaims fine tantalum niobium concentrate thing as claimed in claim 4 is characterized in that the intensity magnetic separator that said high intensity magnetic separation adopts comprises various dry high-magnetic separation machines, Wet-type strong magnetic separator, high gradient magnetic separator.
CN2011102945115A 2011-09-28 2011-09-28 Process for recovering ultrafine niobium-tantalum minerals from tantalum-niobium ores Pending CN102441483A (en)

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Cited By (20)

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CN102836777A (en) * 2012-09-18 2012-12-26 镇康县金宏矿业有限公司 Ore dressing technology for comprehensively recovering lean and fine wiikite
CN103846154A (en) * 2012-12-05 2014-06-11 核工业北京地质研究院 Method of recycling tin, niobium and tantalum from smelted tailings
CN105057091A (en) * 2015-09-23 2015-11-18 江西金辉环保科技有限公司 Method for recycling niobium-tantalum concentrate from niobium-tantalum waste ore
CN105080705A (en) * 2015-09-23 2015-11-25 江西金辉环保科技有限公司 Method for preparing various minerals from tantalum-niobium ores through combined magnetic separation
CN105126993A (en) * 2015-08-21 2015-12-09 西北矿冶研究院 Comprehensive recovery process for associated tantalum-niobium ore
CN105251606A (en) * 2014-12-29 2016-01-20 江西金辉环保科技有限公司 Refining process for lepidolite in tantalum-niobium ore waste rocks
CN105312147A (en) * 2014-12-29 2016-02-10 江西金辉环保科技有限公司 A method for extracting minute quantities (Ta, nb)2O5from TaNb ore gangue
RU2574089C1 (en) * 2014-12-10 2016-02-10 Закрытое акционерное общество "ТЕХНОИНВЕСТ АЛЬЯНС" Enrichment of tantalum-niobium ores by gravitational and magnetic method
CN105964401A (en) * 2016-04-28 2016-09-28 中国地质科学院矿产综合利用研究所 Mineral separation process for high-iron nepheline ore
CN106216087A (en) * 2016-07-07 2016-12-14 张宝臣 A kind of method using magnetic separator enrichment copper-lead zinc in mine tailing
CN106378254A (en) * 2016-12-09 2017-02-08 江西金辉再生资源股份有限公司 Method for removing magnetic impurities from tantalum-niobium waste ores by utilizing combined magnetic separation
CN106423554A (en) * 2016-12-09 2017-02-22 江西金辉再生资源股份有限公司 Method using tailing sand united concentration to prepare potassium-sodium feldspar powder
CN104437825B (en) * 2013-09-18 2017-03-15 北京有色金属研究总院 A kind of ore-dressing technique for processing the niobium minerals of particulate containing mud
CN106583051A (en) * 2016-12-23 2017-04-26 中国地质科学院矿产综合利用研究所 Method for full-sludge flotation co-enrichment recovery of lithium niobium tantalum multi-metal resources
CN107243406A (en) * 2016-08-29 2017-10-13 赣州金环磁选设备有限公司 A kind of method of the feldspar of niobium containing tantalum tailing resource recycling
CN108787158A (en) * 2018-05-22 2018-11-13 北京矿冶科技集团有限公司 The recycling beneficiation method of fine- disseminated ore in a kind of uranium-bearing polymetallic ore
CN109127117A (en) * 2018-11-01 2019-01-04 中钢集团马鞍山矿山研究院有限公司 A kind of beneficiation method of spodumene ore
CN109290049A (en) * 2018-09-25 2019-02-01 内蒙古扎鲁特旗鲁安矿业有限公司 A kind of radioactive beneficiation method of quartzy feldspar concentrate of removal
CN111068898A (en) * 2019-12-06 2020-04-28 核工业北京化工冶金研究院 Method for producing bulk concentrate by mineral separation from polymetallic ore
CN112452532A (en) * 2020-11-04 2021-03-09 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) Comprehensive recovery process of low-grade fine-grain niobium-tantalum ore

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CN102836777A (en) * 2012-09-18 2012-12-26 镇康县金宏矿业有限公司 Ore dressing technology for comprehensively recovering lean and fine wiikite
CN102836777B (en) * 2012-09-18 2013-11-27 镇康县金宏矿业有限公司 Ore dressing technology for comprehensively recovering leand fine wiikite
CN103846154A (en) * 2012-12-05 2014-06-11 核工业北京地质研究院 Method of recycling tin, niobium and tantalum from smelted tailings
CN104437825B (en) * 2013-09-18 2017-03-15 北京有色金属研究总院 A kind of ore-dressing technique for processing the niobium minerals of particulate containing mud
RU2574089C1 (en) * 2014-12-10 2016-02-10 Закрытое акционерное общество "ТЕХНОИНВЕСТ АЛЬЯНС" Enrichment of tantalum-niobium ores by gravitational and magnetic method
CN105251606B (en) * 2014-12-29 2017-11-21 江西金辉环保科技有限公司 The refining technique of lepidolite in a kind of tantalum niobium concentrate barren rock
CN105251606A (en) * 2014-12-29 2016-01-20 江西金辉环保科技有限公司 Refining process for lepidolite in tantalum-niobium ore waste rocks
CN105312147A (en) * 2014-12-29 2016-02-10 江西金辉环保科技有限公司 A method for extracting minute quantities (Ta, nb)2O5from TaNb ore gangue
CN105126993A (en) * 2015-08-21 2015-12-09 西北矿冶研究院 Comprehensive recovery process for associated tantalum-niobium ore
CN105057091A (en) * 2015-09-23 2015-11-18 江西金辉环保科技有限公司 Method for recycling niobium-tantalum concentrate from niobium-tantalum waste ore
CN105080705A (en) * 2015-09-23 2015-11-25 江西金辉环保科技有限公司 Method for preparing various minerals from tantalum-niobium ores through combined magnetic separation
CN105964401A (en) * 2016-04-28 2016-09-28 中国地质科学院矿产综合利用研究所 Mineral separation process for high-iron nepheline ore
CN105964401B (en) * 2016-04-28 2017-05-10 中国地质科学院矿产综合利用研究所 Mineral separation process for high-iron nepheline ore
CN106216087B (en) * 2016-07-07 2018-04-24 张宝臣 A kind of method for being enriched with copper-lead zinc using magnetic separator in tailing
CN106216087A (en) * 2016-07-07 2016-12-14 张宝臣 A kind of method using magnetic separator enrichment copper-lead zinc in mine tailing
CN107243406A (en) * 2016-08-29 2017-10-13 赣州金环磁选设备有限公司 A kind of method of the feldspar of niobium containing tantalum tailing resource recycling
CN106423554A (en) * 2016-12-09 2017-02-22 江西金辉再生资源股份有限公司 Method using tailing sand united concentration to prepare potassium-sodium feldspar powder
CN106378254A (en) * 2016-12-09 2017-02-08 江西金辉再生资源股份有限公司 Method for removing magnetic impurities from tantalum-niobium waste ores by utilizing combined magnetic separation
CN106583051A (en) * 2016-12-23 2017-04-26 中国地质科学院矿产综合利用研究所 Method for full-sludge flotation co-enrichment recovery of lithium niobium tantalum multi-metal resources
CN106583051B (en) * 2016-12-23 2019-08-23 中国地质科学院矿产综合利用研究所 Method for full-sludge flotation co-enrichment recovery of lithium niobium tantalum multi-metal resources
CN108787158B (en) * 2018-05-22 2020-09-25 北京矿冶科技集团有限公司 Recovery beneficiation method for micro-fine particle ore in uranium-containing polymetallic ore
CN108787158A (en) * 2018-05-22 2018-11-13 北京矿冶科技集团有限公司 The recycling beneficiation method of fine- disseminated ore in a kind of uranium-bearing polymetallic ore
CN109290049A (en) * 2018-09-25 2019-02-01 内蒙古扎鲁特旗鲁安矿业有限公司 A kind of radioactive beneficiation method of quartzy feldspar concentrate of removal
CN109290049B (en) * 2018-09-25 2021-01-26 内蒙古扎鲁特旗鲁安矿业有限公司 Beneficiation method for removing radioactivity of quartz feldspar concentrate
CN109127117A (en) * 2018-11-01 2019-01-04 中钢集团马鞍山矿山研究院有限公司 A kind of beneficiation method of spodumene ore
CN111068898A (en) * 2019-12-06 2020-04-28 核工业北京化工冶金研究院 Method for producing bulk concentrate by mineral separation from polymetallic ore
CN112452532A (en) * 2020-11-04 2021-03-09 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) Comprehensive recovery process of low-grade fine-grain niobium-tantalum ore

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Application publication date: 20120509