CN101787450A - Method for enriching tantalum and niobium, rare earth element, iron and phosphorus from rare metal ores - Google Patents
Method for enriching tantalum and niobium, rare earth element, iron and phosphorus from rare metal ores Download PDFInfo
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- CN101787450A CN101787450A CN201010019372A CN201010019372A CN101787450A CN 101787450 A CN101787450 A CN 101787450A CN 201010019372 A CN201010019372 A CN 201010019372A CN 201010019372 A CN201010019372 A CN 201010019372A CN 101787450 A CN101787450 A CN 101787450A
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Abstract
The invention relates to a method for enriching tantalum and niobium, rare earth element, iron and phosphorus from rare metal ores. The method is characterized by evenly mixing the ores, a reducing agent and limestone according to the weight ratio of 100: 2-30: 1-15, and roasting at the temperature of 1300-1500 DEG C for 0.5-8h; and breaking roasted products till minus 0.043-minus 4.0mm after roasting, carrying out magnetic separation under the magnetic field strength of 200-10000 Oe, and respectively obtaining a rare metal enrichment and an iron-phosphorus enrichment. The method is applicable to the enrichment of the iron, the phosphorus and rare metals of the tantalum, the niobium and the rare earth element in crandallite and colloidal brown iron ore containing the niobium, titanium, the rare earth element and other rare metals.
Description
Technical field
The present invention relates to a kind of from rare metal ore the method for enriching tantalum and niobium, rare earth element, iron and phosphorus.
Background technology
Australia contains TiO in certain ore deposit
25～8%, Fe 20～40%, Nb
2O
51.5～3%, REO (rare earth oxide) 2～3%, Ta
2O
50.05～0.08%, P
2O
55～18%.This ore deposit is mainly by mineral compositions such as crandallite, limonite, niobite, ilmenorutile, ilmenite, magnetite, haplotypite, quartz, feldspars, rare metals such as titaniferous, tantalum, niobium, rare earth element and zirconium, resources such as a large amount of phosphorus, iron, aluminium are arranged simultaneously, belong to polymetallic deposit.
" niobium and tantalum " (А. В. work such as Е Л Ю Т И Н, press of Zhongnan Polytechnic Univ, P38～P43) summarized domestic and international at present enriching method to tantalum, niobium minerals thing, mainly adopt gravity method ore dressing and gravity floatation method and flotation process, also have chemical method." rare earth " (P263～P280) summarized at present the enriching method of rare earth element mineral both at home and abroad mainly adopts flotation process and is aided with multiple combination procesies such as gravity treatment, magnetic separation for Xu Guangxian work, metallurgical industry press.The strong weathering alteration features of ore tool in certain ore deposit of Australia, the crandallite and the gluey limonite of a large amount of weathering alteration product----argillizations have wrapped up the minerals of rare metals such as most niobium, titanium and rare earth element, and disseminated grain size is superfine, be difficult to adopt beneficiation method to carry out sorting, enrichment tantalum, niobium, rare earth element, this ore deposit is also contained a large amount of iron, phosphor resource and is also needed enrichment simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of from rare metal ore the method for enriching tantalum and niobium, rare earth element, iron and phosphorus.
By weight, ore: reductive agent: Wingdale is 100: 2～30: 1～15, mix, and under 1300～1500 ℃ of maturing temperatures, roasting 0.5～8 hour; After the roasting, broken calcining matter to-0.043～-4.0mm, be magnetic separation under 200～10000 oersteds in magneticstrength, obtain rare metal enriched substance and iron phosphorus enriched substance respectively.
Described reductive agent is hard coal, coke or gac.
The crandallite and the gluey limonite of argillization have wrapped up the minerals of rare metals such as most niobium, titanium and rare earth element in certain ore deposit of Australia, and disseminated grain size is superfine, be difficult to adopt beneficiation method to carry out sorting, enrichment tantalum, niobium, rare earth element, this ore deposit is also contained a large amount of iron, phosphor resource and is also needed enrichment simultaneously; Adopt acid or alkali dissolution metallurgical technology to handle, the acid and alkali consumption amount is big, and iron phosphor resource development and use complex process, cost height also are not fit to handle the method in this ore deposit at present.Its principle of the present invention is to utilize the difference of rare metal tantalum, niobium, rare earth element and iron phosphorus reductibility at high temperature, iron, phosphorus is reduced under the effect of the cheap reductive agent of tradition form ferrophosphor(us).Ferrophosphor(us) belongs to ferromagnetic substance, the magnetic of ferrophosphor(us) and rare metal tantalum, niobium, rare earth oxide differs bigger, under the low-intensity magnetic field effect, the magnetic separation from furnace charge of iron phosphorus is come out, separate with rare metal tantalum, niobium, rare earth element thereby also reach iron phosphorus, respectively enrichment iron phosphorus and rare metal tantalum, niobium, rare earth element.Select for use lime masonry solubility promoter can suitably reduce furnace charge viscosity under the high temperature, help the selective reduction of iron phosphorus.
Description of drawings
Fig. 1 is the schema of enriching tantalum and niobium, rare earth element, iron and phosphorus from rare metal ore.
Embodiment
Embodiment 1
Australia's rare metal ore (main chemical compositions is as shown in table 1) 500 grams and 12 gram gacs and 70 gram Wingdales are mixed; At the high temperature kiln roasting, the control maturing temperature is 1500 ℃, soaking time 1 hour; Obtain 402 gram calcining matters after the roasting, broken calcining matter is to-0.076mm,, be magnetic separation under 2000 oersteds in magneticstrength, obtain rare metal enriched substance and iron phosphorus enriched substance.It is as shown in table 2 to analyze rare metal enriched substance and iron phosphorus enriched substance principal element content.The result shows that the rare metal more than 96% enters the rare metal enriched substance, and rare metal content improves; Iron phosphorus more than 93% enters iron phosphorus enriched substance with the ferrorphosphorus form.
Table 1 ore composition and content (%)
Component after table 2 magnetic separation, content (%) and weight (g)
Embodiment 2
Above-mentioned Australia rare metal ore (main chemical compositions is as shown in table 1) 150 grams and 18 gram gacs and 18 gram Wingdales are mixed; At the high temperature kiln roasting, be under 1450 ℃ at maturing temperature, soaking time 6 hours obtains 119.7 gram calcining matters after the roasting; Broken calcining matter is to-0.4mm,, be magnetic separation under 5000 oersteds in magneticstrength, obtain rare metal enriched substance and iron phosphorus enriched substance.It is as shown in table 3 to analyze rare metal enriched substance and iron phosphorus enriched substance principal element content.As calculated, the rare metal more than 90% enters the rare metal enriched substance; Iron phosphorus more than 90% enters iron phosphorus enriched substance with the ferrorphosphorus form.
Component after table 3 magnetic separation, content (%) and weight (g)
Embodiment 3
Certain rare metal ore of Australia (main chemical compositions is as shown in table 4) 150 grams mix with 45 gram coke and 1.8 gram Wingdales; At the high temperature kiln roasting, maturing temperature is 1350 ℃, soaking time 8 hours; Obtain 132.1 gram calcining matters after the roasting; Broken calcining matter is to-0.043mm,, be magnetic separation under 10000 oersteds in magneticstrength, obtain rare metal enriched substance and iron phosphorus enriched substance.It is as shown in table 5 to analyze rare metal enriched substance and iron phosphorus enriched substance principal element content, and as calculated, the rare metal more than 90% enters the rare metal enriched substance; Iron phosphorus more than 93% enters iron phosphorus enriched substance with the ferrorphosphorus form.
Table 4 ore composition and content (%)
| Component | ??TiO 2 | ??Fe | ??Nb 2O 5 | ??REO | ??Ta 2O 5 | ??P 2O 5 |
| Content | ??5.82 | ??35.01 | ??1.75 | ??2.22 | ??0.08 | ??12.36 |
Component after table 5 magnetic separation, content (%) and weight (g)
Embodiment 4
Above-mentioned Australia rare metal ore (main chemical compositions is as shown in table 4) 150 grams and 45 gram hard coals and 18 gram Wingdales are mixed; At the high temperature kiln roasting, maturing temperature is 1350 ℃, and soaking time 7 hours obtains 137.4 gram calcining matters after the roasting; Broken calcining matter is to-0.043mm,, be magnetic separation under 200 oersteds in magneticstrength, obtain rare metal enriched substance and iron phosphorus enriched substance; It is as shown in table 6 to analyze rare metal enriched substance and iron phosphorus enriched substance principal element content, and as calculated, the rare metal more than 90% enters the rare metal enriched substance; Iron phosphorus more than 93% enters iron phosphorus enriched substance with the ferrorphosphorus form.
Component after table 6 magnetic separation, content (%) and weight (g)
Claims (2)
1. the method for an enriching tantalum and niobium from rare metal ore, rare earth element, iron and phosphorus, it is characterized in that by weight ore: reductive agent: Wingdale is 100: 2～30: 1～15, mixes, under 1300～1500 ℃ of maturing temperatures, roasting 0.5～8 hour; After the roasting, broken calcining matter to-0.043～-4.0mm, be magnetic separation under 200～10000 oersteds in magneticstrength, obtain rare metal enriched substance and iron phosphorus enriched substance respectively.
2. according to claim 1 from rare metal ore the method for enriching tantalum and niobium, rare earth element, iron and phosphorus, it is characterized in that described reductive agent is hard coal, coke or gac.
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| CN102181643A (en) * | 2011-03-29 | 2011-09-14 | 内蒙古科技大学 | Method for extracting rare earth from rare earth tailings |
| CN102703697A (en) * | 2012-06-29 | 2012-10-03 | 广州有色金属研究院 | Method for recovering rare earth-niobium-ferrum paragenic ore |
| CN102703682A (en) * | 2012-06-29 | 2012-10-03 | 广州有色金属研究院 | Comprehensive recovery method of rare metal ore |
| 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 |
| CN102876883A (en) * | 2012-08-10 | 2013-01-16 | 东北大学 | One-step roast reduction-decomposition method of iron rare earth minerals |
| CN103194604A (en) * | 2012-01-06 | 2013-07-10 | 深圳市格林美高新技术股份有限公司 | Method for recovering tantalum, silver and manganese in waste and old tantalum capacitor |
| CN103834820A (en) * | 2012-11-20 | 2014-06-04 | 韩国地质资源研究院 | Rare earth metal concentration method with smelting reduction process |
| CN104874474A (en) * | 2015-06-10 | 2015-09-02 | 岳阳大力神电磁机械有限公司 | Beneficiation method for xenotime |
| CN105568003A (en) * | 2015-12-31 | 2016-05-11 | 包头稀土研究院 | Method for enriching niobium from Bayan obo tailings |
| CN105618254A (en) * | 2015-12-22 | 2016-06-01 | 深圳市中金岭南有色金属股份有限公司 | Roasting and magnetic separation processing technology for lead-zinc tailings |
| CN105907990A (en) * | 2016-05-26 | 2016-08-31 | 江苏省冶金设计院有限公司 | Method of producing ferrocolumbium |
| CN106282552A (en) * | 2016-08-22 | 2017-01-04 | 广东省资源综合利用研究所 | A kind of scandium-enriched and method of rare earth from rare metal association iron ore concentrate |
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| CN103194604B (en) * | 2012-01-06 | 2014-09-17 | 深圳市格林美高新技术股份有限公司 | Method for recovering tantalum, silver and manganese in waste and old tantalum capacitor |
| CN103194604A (en) * | 2012-01-06 | 2013-07-10 | 深圳市格林美高新技术股份有限公司 | Method for recovering tantalum, silver and manganese in waste and old tantalum capacitor |
| CN102703697A (en) * | 2012-06-29 | 2012-10-03 | 广州有色金属研究院 | Method for recovering rare earth-niobium-ferrum paragenic ore |
| CN102703682A (en) * | 2012-06-29 | 2012-10-03 | 广州有色金属研究院 | Comprehensive recovery method of rare metal ore |
| CN102703682B (en) * | 2012-06-29 | 2014-01-01 | 广州有色金属研究院 | Comprehensive recovery method of rare metal ore |
| CN102703697B (en) * | 2012-06-29 | 2014-01-01 | 广州有色金属研究院 | Method for recovering rare earth-niobium-ferrum paragenic ore |
| CN102876883A (en) * | 2012-08-10 | 2013-01-16 | 东北大学 | One-step roast reduction-decomposition method of iron rare earth minerals |
| CN102876883B (en) * | 2012-08-10 | 2014-08-06 | 东北大学 | One-step roast reduction-decomposition method of iron rare earth minerals |
| 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 |
| CN103834820A (en) * | 2012-11-20 | 2014-06-04 | 韩国地质资源研究院 | Rare earth metal concentration method with smelting reduction process |
| CN104874474A (en) * | 2015-06-10 | 2015-09-02 | 岳阳大力神电磁机械有限公司 | Beneficiation method for xenotime |
| CN105618254A (en) * | 2015-12-22 | 2016-06-01 | 深圳市中金岭南有色金属股份有限公司 | Roasting and magnetic separation processing technology for lead-zinc tailings |
| CN105618254B (en) * | 2015-12-22 | 2017-08-04 | 深圳市中金岭南有色金属股份有限公司 | A kind of Pb-Zn tailings calcining magnetic separation handling process |
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| CN105568003B (en) * | 2015-12-31 | 2017-11-17 | 包头稀土研究院 | The method of niobium is enriched with a kind of mine tailing from Bayan Obo |
| CN105907990A (en) * | 2016-05-26 | 2016-08-31 | 江苏省冶金设计院有限公司 | Method of producing ferrocolumbium |
| CN105907990B (en) * | 2016-05-26 | 2018-03-23 | 江苏省冶金设计院有限公司 | A kind of method for producing ferro-niobium |
| CN106282552A (en) * | 2016-08-22 | 2017-01-04 | 广东省资源综合利用研究所 | A kind of scandium-enriched and method of rare earth from rare metal association iron ore concentrate |
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Effective date of registration: 20171227 Address after: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Patentee after: GUANGDONG INSTITUTE OF RARE METALS Address before: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No. Patentee before: GUANGZHOU Research Institute OF NON FERROUS METALS |
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Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee after: Institute of rare metals, Guangdong Academy of Sciences Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District Patentee before: GUANGDONG INSTITUTE OF RARE METALS |
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