CN101658816B - Mineral separating process for electively recovering tantalum-niobium ores - Google Patents
Mineral separating process for electively recovering tantalum-niobium ores Download PDFInfo
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- CN101658816B CN101658816B CN200910186049XA CN200910186049A CN101658816B CN 101658816 B CN101658816 B CN 101658816B CN 200910186049X A CN200910186049X A CN 200910186049XA CN 200910186049 A CN200910186049 A CN 200910186049A CN 101658816 B CN101658816 B CN 101658816B
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Abstract
The invention relates to a mineral separating process for electively recovering tantalum-niobium ores; in the process, the crushed ores produce tantalum-niobium ores finally after the steps of stage grinding, stage sorting, mud-sand separation, and respectively processing primary mud and secondary mud; the process adopts stage grinding and stage sorting and avoids over-crushing phenomenon of the tantalum-niobium ores; the mud-sand separation and respectively processing of the primary mud and secondary mud avoid interference of coarse grain material to the separation of fine-graded useful mineral; as ore grinding produces a great amount of secondary ferrite, the interference of iron with large specific gravity to the separation of the tantalum-niobium useful mineral can be avoided by magnetic separation and impurity removal, thereby achieving the purpose of improving the tantalum-niobium concentrate grade and tantalum-niobium ore-separation recovery percentage. Under the condition that main useful elements-tantalum and niobium has high dispersion coefficient, the tantalum-niobium recovery rate can reach 50 percent, and the recovery rate of the recyclable part of tantalum and niobium can reach 65-75 percent.
Description
Technical field
The present invention relates to the ore-dressing technique that a kind of effectively recovery property is crisp, be prone to argillization and the thin mineral of disseminated grain size, relate in particular to a kind of ore-dressing technique that can effectively reclaim tantalum niobium concentrate stone.
Background technology
Because the tantalum metal has good heat conduction, conduction, decay resistance, its ductility is good, fusing point is high, chemical stability reaches some other special nature well, and it is widely used in industry such as metallurgy, electronics, chemical industry, Aero-Space.The demand of world's tantalum powder, tantalum wire is approximately with 10% speed cumulative year after year.China belongs to poor tantalum state, and tantalum-niobium concentrate (Ta is produced in present domestic mine per year
2O
5) about 125 tons, and domestic niobium minerals independently not at present, the production of its niobium is association output from tantalum ore just.Domestic tantalum-niobium smelt enterprise and Ta product output are amounted to into about 800 tons of metal tantalum, and from external import, and the breach of niobium is bigger more than 90% for its raw material.The tantalum niobium is as China's important strategic property resource, and country lists it in " resource of incentive exploitation "; Tantalum niobium concentrate stone is frangible, and for fine size, tantalum niobium concentrate stone that grade is low, how effectively to reclaim is a great problem, therefore, is necessary to invent a kind of ore-dressing technique that can effectively reclaim tantalum niobium concentrate stone.
Summary of the invention
The purpose of this invention is to provide a kind of ore-dressing technique that can effectively reclaim tantalum niobium concentrate stone, can improve tantalum-niobium concentrate grade and tantalum niobium recovery rate in ore-dressing index, solve effective recovery problem of frangible, fine size, tantalum niobium concentrate stone that grade is low.
The ore-dressing technique that can effectively reclaim tantalum niobium concentrate stone of the present invention; The characteristics frangible according to tantalum niobium concentrate stone; For fine size, tantalum niobium concentrate stone that grade is low, the technological process output tantalum-niobium concentrate that adopts stage grinding, stage grading, mud-sand separation, magnetic separation removal of impurities, primary mud and secondary mud to handle respectively the product behind the muck.Under the high situation of the dispersion rate of main useful element tantalum, niobium, the tantalum niobium rate of recovery is reached about 50%, make the rate of recovery of the recyclable part of tantalum niobium reach 65%～75%.
The ore-dressing technique that can effectively reclaim tantalum niobium concentrate stone of the present invention, technical characterstic is: adopt stage grinding, stage grading, avoided the mistake crushing phenomenon of tantalum niobium concentrate thing; Adopt mud-sand separation, primary mud and secondary mud to handle the interference of having avoided coarse-grained material that the fine fraction valuable mineral is sorted respectively; Because ore grinding produces a large amount of inferior pig iron, through the magnetic separation removal of impurities, the interference that can avoid the bigger irony of proportion that valuable mineral tantalum niobium is sorted, thus reach the purpose that improves tantalum-niobium concentrate grade and tantalum niobium recovery rate in ore-dressing.
Description of drawings
Fig. 1 is the mineral processing circuit figure that can effectively reclaim tantalum niobium valuable mineral of the present invention.
The specific embodiment
The ore-dressing technique that can effectively reclaim tantalum niobium concentrate stone of the present invention, the practical implementation process is following:
Raw ore with the primary thin mud of the granularity that removes for-0.2mm, is sent into primary thin bricklayer's section individual processing after washup, primary mud sorts mine tailing and dewaters through spiral classifier, and sand return gets into mill heavy industry section and handles, and the spiral classifier overflow is advanced to spread the cloth chute and sorted.Wash the back ore through three section one closed circuit crushing; The muck product gets into mill heavy industry section; Primary grinding is made up of closed circuit rod mill and high frequency vibrating fine screen, the ore milling product granularity is-0.5mm to get into the spiral classifier classification after the ore milling product deironing; Its sand return gets into one section coarse fraction and sorts system, output tantalum-niobium concentrate and mine tailing; One section sorts mine tailing sand return after spiral classifier concentrates and gets into secondary grinding; The overflow of spiral classifier and one section spiral classifier overflow merge through cyclone slough-the 0.038mm material after separately selected output tantalum-niobium concentrate and mine tailing, overflow-0.038mm material gets into secondary thin mud and sorts system.Secondary grinding is made up of closed circuit ball mill and high frequency fine screen, the secondary grinding product granularity is-0.2mm; The deironing of secondary grinding product after cyclone classification output-0.2+0.038mm ,-two grades of 0.038mm ,-0.2+0.038mm grade material gets into two sections and sorts system, output tantalum-niobium concentrate and mine tailing;-0.038mm grade material gets into secondary thin mud system, sorts output tantalum-niobium concentrate and mine tailing through dewater laggard shop cloth chute, shaking table of concentrator.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.Those of ordinary skill for technical field under the present invention; Under the prerequisite that does not break away from the present invention's design, make some alternative or obvious modification that are equal to; And performance or purposes are identical, then should be regarded as belonging to the protection domain that the present invention is confirmed by claims of being submitted to.
Claims (1)
1. ore-dressing technique that can effectively reclaim tantalum niobium valuable mineral; The product of this technology after with muck handled the final tantalum-niobium concentrate of output respectively through stage grinding, stage grading, mud-sand separation, magnetic separation removal of impurities, primary mud and secondary mud; It is characterized in that: raw ore after washup with the granularity that removes is-the primary thin mud of 0.2mm; Send into primary thin bricklayer's section individual processing; Primary mud sorts mine tailing and dewaters through spiral classifier, and sand return gets into mill heavy industry section and handles, and the spiral classifier overflow is advanced to spread the cloth chute and sorted; Wash the back ore through three section one closed circuit crushing; The muck product gets into mill heavy industry section; Primary grinding is made up of closed circuit rod mill and high frequency vibrating fine screen, the ore milling product granularity is-0.5mm to get into the spiral classifier classification after the ore milling product deironing; Its sand return gets into one section coarse fraction and sorts system, output tantalum-niobium concentrate and mine tailing; One section sorts mine tailing sand return after spiral classifier concentrates and gets into secondary grinding; The overflow of spiral classifier and one section spiral classifier overflow merge through cyclone slough-the 0.038mm material after separately selected output tantalum-niobium concentrate and mine tailing, overflow-0.038mm material gets into secondary thin mud and sorts system; Secondary grinding is made up of closed circuit ball mill and high frequency fine screen, the secondary grinding product granularity is-0.2mm; The deironing of secondary grinding product after cyclone classification output-0.2+0.038mm ,-two grades of 0.038mm ,-0.2+0.038mm material gets into two sections and sorts system, output tantalum-niobium concentrate and mine tailing;-0.038mm grade gets into secondary thin mud system, sorts output tantalum-niobium concentrate and mine tailing through dewater laggard shop cloth chute, shaking table of concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910186049XA CN101658816B (en) | 2009-09-16 | 2009-09-16 | Mineral separating process for electively recovering tantalum-niobium ores |
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| CN200910186049XA CN101658816B (en) | 2009-09-16 | 2009-09-16 | Mineral separating process for electively recovering tantalum-niobium ores |
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| CN101658816A CN101658816A (en) | 2010-03-03 |
| CN101658816B true CN101658816B (en) | 2012-08-22 |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151616B (en) * | 2011-01-24 | 2014-05-07 | 华东理工大学 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
| CN102441483A (en) * | 2011-09-28 | 2012-05-09 | 江西理工大学 | Process for recovering ultrafine niobium-tantalum minerals from tantalum-niobium ores |
| 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 |
| CN102861662A (en) * | 2012-09-29 | 2013-01-09 | 广州有色金属研究院 | Ore dressing method of micro-fine particle tantalum-niobium ores |
| CN102921523B (en) * | 2012-12-03 | 2015-08-19 | 云南磷化集团有限公司 | A kind of method that can improve grinding efficiency and classification efficiency |
| CN103418488B (en) * | 2013-08-23 | 2015-02-25 | 中国地质科学院矿产综合利用研究所 | Comprehensive recovery process of lithium polymetallic ore associated with fine niobium and tantalum |
| CN103861723B (en) * | 2014-03-19 | 2016-06-08 | 宜春钽铌矿 | The method of separation and Extraction microfine tantalum-niobium concentrate |
| CN105251594B (en) * | 2014-12-29 | 2018-01-23 | 江西金辉再生资源股份有限公司 | The preparation method of potassium albite in powder containing lithium in a kind of tantalum niobium concentrate barren rock |
| CN105126993B (en) * | 2015-08-21 | 2018-05-15 | 西北矿冶研究院 | Comprehensive recovery process for associated tantalum-niobium ore |
| RU2606900C1 (en) * | 2015-08-26 | 2017-01-10 | Закрытое Акционерное Общество "ТЕХНОИНВЕСТ АЛЬЯНС" (ЗАО) "ТЕХНОИНВЕСТ АЛЬЯНС" | Method for complex enrichment of rare-earth metal ores |
| CN105057091B (en) * | 2015-09-23 | 2017-08-25 | 江西金辉环保科技有限公司 | The method that tantalum-niobium concentrate is reclaimed from tantalum niobium ettle |
| CN108246489A (en) * | 2017-12-05 | 2018-07-06 | 中信大锰矿业有限责任公司大新锰矿分公司 | The resource utilization of manganese ore mud utilizes method |
| CN108246471A (en) * | 2018-01-31 | 2018-07-06 | 广西华洋矿源材料有限公司 | A kind of beneficiation method of manganese ore |
| CN108393192B (en) * | 2018-01-31 | 2020-12-25 | 广西华洋矿源材料有限公司 | Beneficiation method for ilmenite |
| CN108525843A (en) * | 2018-04-19 | 2018-09-14 | 江西金辉再生资源股份有限公司 | Utilize the method for difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder |
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| CN101658816A (en) | 2010-03-03 |
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Address after: 330031 No. 888, Qian Hu Road, Hongjiao Island, Nanchang, Jiangxi. Patentee after: China ruim engineering technology Limited by Share Ltd Address before: No. 1, Bayi Avenue, Nanchang, Jiangxi Province, Jiangxi Patentee before: China Nerin Engineering Co., Ltd. |