recovery flotation process bayan obo

Mechanism of recovery processes for rare earth and iron ...

2020-9-1  An RE concentrates with a yield of 3.8%, RE grade of 51.9%, and a recovery rate of 50.1% can be obtained with flotation separation of iron tailings. In the selection process, the RE

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The influence of temperature on rare earth flotation with ...

2018-1-1  The Bayan Obo iron–rare earth (RE)–niobium deposit, located in the Inner Mongolia region of northern China, is the largest RE body in the world. 1 The principal industrial RE minerals in the deposit are bastnaesite and monazite, which are present in ratios of 1:1 or 9:1. 2 In most flotation processes, bastnaesite and monazite are recovered ...

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Recovery Behavior of Rare Earth from Bayan Obo Complex ...

A novel process is presented for recovering rare earth from Bayan Obo complex iron ore. The iron ore was reduced and melting separated to produce iron nugget and rare-earth-rich slag.

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Mechanism of phthalic acid collector in flotation ...

2020-11-7  Baoshan Mining is able to acquire fluorite concentrate at a grade of 86.02% through the process of “preferential RE flotation - mixed foam flotation of fluorine (one roughing and seven cleaning) - superconductive magnetic separation”. 3,4 However, these technologies have disadvantages known as long process route, poor reagent selectivity and low processing capacity of superconductive magnetic

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Recovery Behavior of Rare Earth from Bayan Obo Complex ...

2012-11-8  A novel process is presented for recovering rare earth from Bayan Obo complex iron ore. The iron ore was reduced and melting separated to produce iron nugget and rare-earth-rich slag. In order to investigate the influence of cooling rate on mineral components, especially the enrichment behavior of RE-containing mineral, the slag was remelted at 1673 K (1400 °C) and the liquid slags were ...

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The Bayan Obo (China) giant REE accumulation

The Bayan Obo deposit is the largest rare earth element (REE) accumulation in the world, and also an important iron and niobium resource in China (Xie et al., 2016).However, its genesis is still highly debated, largely due to pervasive post-ore modifications (Smith et al., 2015).In this deposit, the REE ores are mainly hosted in a suite of dolomite, which is divided into fine-grained and ...

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Novel Harmless Utilization of Bayan Obo Tailings ...

2020-7-8  In this work, the carbothermal reduction and hydrochloric acid leaching were utilized for separation and recovery of iron and rare earth from the Bayan Obo tailings. The effects of temperature, addition of calcium oxide, and reaction time on the metallization rate of

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A Novel Harmless Utilization of Bayan Obo Tailings ...

A novel approach for recovery of iron and rare earth elements (REEs) from Bayan Obo tailings of Baotou, China, was developed by combining magnetizing roasting, magnetic separation, (NH4)2SO4 ...

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Preconcentration of Iron, Rare Earth, and Fluorite from ...

2020-9-15  Nowadays, iron, rare earth, and fluorite have been practically recovered from Bayan Obo mine with a conventional magnetic separation–flotation continuous process

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The Bayan Obo (China) giant REE accumulation conundrum ...

The Bayan Obo deposit is the largest rare earth element (REE) accumulation in the world, and also an important iron and niobium resource in China (Xie et al., 2016).However, its genesis is still highly debated, largely due to pervasive post-ore modifications (Smith et al., 2015).In this deposit, the REE ores are mainly hosted in a suite of dolomite, which is divided into fine-grained and ...

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The influence of temperature on rare earth flotation with ...

The influence of temperature on the complex process of Bayan Obo rare earth (RE) ore flotation with a collector of naphthyl hydroxamic acid (LF8#) was investigated. Industrial test data shows that the grade and recovery of RE increase with the temperature. However, the proportion of bastnaesite in the bulk concentrate increases as the RE grade ...

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Mechanism of recovery processes for rare earth and iron ...

2020-9-21  Mechanism of recovery processes for rare earth and iron from Bayan Obo International Journal of Chemical Reactor Engineering ( IF 1.510) Pub Date : 2020-09-21, DOI: 10.1515/ijcre-2020-0077 Wenliang Guo, Daqiang Cang, Lingling Zhang, Junxiang Guo

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Environmental impacts of scandium oxide production from ...

2020-10-10  Here, given the Bayan Obo mine has a huge number of tailings, this can be treated as direct raw material for Sc production, and the mining processing from primary ore body is excluded. Besides, similar to most LCA studies of rare earths production (Bailey et al., 2020)., the waste treatment process is also excluded from our study. This is ...

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Novel Harmless Utilization of Bayan Obo Tailings ...

2020-7-8  In this work, the carbothermal reduction and hydrochloric acid leaching were utilized for separation and recovery of iron and rare earth from the Bayan Obo tailings. The effects of temperature, addition of calcium oxide, and reaction time on the metallization rate of iron during roasting were investigated. The results showed that the metallization rate of iron reached 99.67% and the loss rate ...

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Recovery of iron from Baotou rare earth tailings by ...

2013-12-1  This paper focused on the investigation of the mineralogical characteristics of rare earth minerals from Bayan Obo tailings during the roasting process in

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Coupling relationship between multicomponent recovery of ...

2015-6-21  The Bayan Obo rare earth ore deposit, located at Inner Mongolia Autonomous Region of North China, is the best known rare earth deposit. It is reported that proven reserves cover 35 % of all the world’s proven rare earth reserves and more than 80 % in China [1–3].But for the moment, the deposit is mainly treated as iron ore resource.

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Iron recovery and rare earths enrichment from Bayan Obo ...

The recovery of iron and enrichment of rare earths from Bayan Obo tailings were investigated using Coal-Ca(OH)2-NaOH roasting followed by magnetic separation. The influences of roasting temperature, roasting time, coal content, milling time, Ca(OH)2 dosage and NaOH dosage on the iron and rare earths recovery were explored. The results showed that the magnetic concentrate containing 70.01 wt ...

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Extraction of Niobium from the Bayan Obo Tailings by ...

In this paper, the method of “floatation—microwave magnetic roasting—low intensity magnetic separation” which aims to utilize the iron and Nb mineral in the Bayan Obo tailings was investigated. The results show that the method of “floatation—microwave magnetic roasting—magnetic separation” is effective and simple, and the recovery of iron and Nb in the whole process is up to 80 ...

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Recovery of Rare Earths, Niobium, and Thorium from the ...

The recovery of rare earths, niobium, and thorium from Bayan Obo’s tailings has been investigated because the Bayan Obo ore is rich in rare earths and rich in niobium and thorium, but it is ...

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Extraction of Niobium from the Bayan Obo Tailings by ...

In this paper, the method of “floatation—microwave magnetic roasting—low intensity magnetic separation” which aims to utilize the iron and Nb mineral in the Bayan Obo tailings was investigated. The results show that the method of “floatation—microwave magnetic roasting—magnetic separation” is effective and simple, and the recovery of iron and Nb in the whole process is up to 80 ...

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PART I. THE BAYAN OBO ORE DEPOSIT - USGS

GEOLOGIC AND TECTONIC SETTING. Bayan Obo is a stratabound ore deposit hosted by Proterozoic marble of the Bayan Obo Group. The regional distributions of the Proterozoic Bayan Obo Group, the Archean metamorphic rocks of the Wutai Group, which unconformably underlies the Bayan Obo Group, and granitic rocks of Archean, Caledonian (early to late Paleozoic), and Hercynian (Permian) ages in

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The Production of Critical Materials as By Products

2019-8-24  The primary product of Bayan Obo is iron ore, but Bayan Obo also produces much of the world’s REEs as a by product. In 2009, Bayan Obo produced 55,000 metric tons of rare earth oxides (REO) [11]. Bayan Obo produced more REEs than any other mine in the world. The primary processing of the REEs at Bayan Obo is by flotation and gravity separation.

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The Production of Critical Materials as By Products ...

The primary product of Bayan Obo is iron ore, but Bayan Obo also produces much of the world’s REEs as a by product. In 2009, Bayan Obo produced 55,000 metric tons of rare earth oxides (REO) [11]. Bayan Obo produced more REEs than any other mine in the world. The primary processing of the REEs at Bayan Obo is by flotation and gravity separation.

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Recovery of iron from Baotou rare earth tailings by ...

2013-10-31  Yu YF, Deng YM, Zhou D. Novel process of comprehensive recovery of iron and rare earth from Bayan Obo low and medium grade oxide ores by industrial trial. Metal Mine. 1992;1:39. Google Scholar [12] Wang QL, Chen W, Yu YF, Yan XH, Liu XY. Test research on the flash magnetization roasting for complex and refractory iron ore.

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About Rare Earths: China

2020-4-16  The Bayan Obo REE‐Nb‐Fe deposit is situated in Inner Mongolia on the northern edge of the North China Kraton, 135 km northwest of Baotou (110°E, 41°47′N). It is a giant polymetallic rare earth element (REE)‐Fe‐Nb ore deposit of hydrothermal origin. It was first discovered as a Fe deposit by Prof. Ding Daoheng in 1927.

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Formation of the world's largest REE deposit through ...

2013-5-7  Bayan Obo, located at the northern margin of the North China Craton (), is the largest light rare earth element (LREE) deposit in the world (Supplementary Figure S1 and Table S1), the largest ...

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The 8th International Conference on Rare Earth Development ...

2016-7-12  Investigations on the roasting process of Bayan Obo tailings 35 Zhang Xiaowei Impurity characterization by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) in terbium after solid state electrotransport purification 36 Ma Ying 37

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郑强-化学工程学院

2021-7-5  [3] Investigations on mineralogical characteristics of rare earth minerals in Bayan Obo tailings during roasting process[J]. Journal of Rare Earths, 2017, 35(3): 300-308. [4] Iron recovery and rare earths enrichment from Bayan Obo tailings using Coal-Ca(OH)2-NaOH roasting followed by

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科研动态----长春应化所稀土资源利用国家重点实验室 - CAS

2020-4-15  2020-04-15 刘天池的文章“An integrated process for the separation and recovery of valuable metals from the spent LiNi0.5Co0.2Mn0.3O2 cathode materials”被 Sep. Purif. Technol.杂志接收。 2020-01-24 陈厉,李海连(共同第一作者)的文章“Separation of heavy rare earths by di-(2-ethylhexyl) phosphinic acid: From fundamentals to cascade extraction simulation”被Min.

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