A study of recovery of copper and cobalt from copper–cobalt oxide ores by ammonium salt roasting

Zhang, Mingzhu; Zhu, Guchuan; Zhao, Yongxing; Feng, Xiujuan

doi:10.1016/j.hydromet.2012.06.014

Cited by 46 publications

(14 citation statements)

References 7 publications

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“…Together with hydrometallurgical methods such as leaching, roasting has been widely used in the enrichment of low-grade mineral resources, such as goethite, copper oxide, manganese oxide ores, and galvanic sludge [85][86][87][88]. Research related to REE recovery using roasting from secondary resources has been published in recent years.…”

Section: Enrichment Of Rees Using Roastingmentioning

confidence: 99%

“…Chloride roasting technology has also been successfully applied in the recovery of other metals. For example, using chlorine roasting (300 C) and hot water leaching (60 C) together resulted in 95% and 90% recovery of copper and cobalt, respectively, from a copper-cobalt oxide ore [88].…”

Section: Ammonium Chloride Roastingmentioning

confidence: 99%

“…Enrichment of REEs using leaching techniques following roasting is a key procedure for making commercial REE products [88,108,111). Also, for some alternative rare earth resources such as computer scrap, phosphor powder, and batteries, leaching has been proven to be the most feasible method for recovering REEs [2,120,121].…”

Section: Enrichment Of Rees Using Leachingmentioning

confidence: 99%

“…However, REEs in clay are mainly present in an ion-exchangeable phase, which can be directly leached with appropriate leaching reagents, such as NaCl and (NH 4 ) 2 SO 4 [122,123]. Compared with roasting, which is normally followed by leaching, direct leaching techniques have received more attention and can be classified according to the leaching reagents used [2,7,88,93,94,104,108,111,116,120,121,[124][125][126][127][128]. Water Leaching Water leaching (WL) is advantageous because of its simple processing and low cost.…”

Section: Enrichment Of Rees Using Leachingmentioning

confidence: 99%

See 3 more Smart Citations

A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products

Zhang

Rezaee

Bhagavatula

et al. 2015

International Journal of Coal Preparation and Utilization

171

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Previous research indicates that coal and coal by-products are a potential source of critical elements including rare earth elements (REE) with estimated amounts in the range of 50 million metric tons. Despite the proven presence of elevated REE concentrations, commercial extraction and recovery have not been realized. This article provides a review of the abundance, mode of occurrence, and recovery methods of rare earth elements in coal and coal by-products. The feasibility of using established REE extraction and recovery technologies is discussed along with issues associated with their use with coal resources.

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Section: Enrichment Of Rees Using Roastingmentioning

confidence: 99%

Section: Ammonium Chloride Roastingmentioning

confidence: 99%

Section: Enrichment Of Rees Using Leachingmentioning

confidence: 99%

Section: Enrichment Of Rees Using Leachingmentioning

confidence: 99%

See 2 more Smart Citations

A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products

Zhang

Rezaee

Bhagavatula

et al. 2015

International Journal of Coal Preparation and Utilization

171

View full text Add to dashboard Cite

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“…In this paper, a technology of two-stage roasting and magnetic separation is adopted to extract cobalt and iron from the complex Co-bearing sulfur concentrate in the Panxi area of China. This will provide an important research basis for the efficient utilization of Co-bearing sulfur concentrate resources in Panxi [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Cobalt and Iron from Refractory Co-Bearing Sulfur Concentrate

Xiao

Zhang

2020

Processes

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In this study, oxidizing roasting, segregation roasting, and magnetic separation are used to extract cobalt and iron from refractory Co-bearing sulfur concentrate. The Co-bearing sulfur concentrate containing 0.68% Co, 33.26% Fe, and 36.58% S was obtained from V-Ti magnetite in the Panxi area of China by flotation. Cobalt pyrite and linneite were the Co-bearing minerals, and the gangue minerals were mica, chlorite, feldspar, and calcite in Co-bearing sulfur concentrate. The results show that cobalt is transformed from Co-pyrite and linneite to a Co2FeO4-dominated new cobalt mineral phase, and iron is transformed from pyrite to Fe2O3 and an Fe3O4-dominated new iron mineral phase after oxidizing roasting. Cobalt changed from CoFe2O4 to a new cobalt mineral phase dominated by [Co] Fe solid solution, and iron changed from Fe2O3 to a new iron mineral phase dominated by metal Fe and Fe3O4 after segregation roasting. Cobalt concentrate with a cobalt grade of 15.15%, iron content of 71.22%, and cobalt recovery of 90.81% as well as iron concentrate with iron grade of 60.06%, cobalt content of 0.11%, and iron recovery of 76.23% are obtained. The main minerals in the cobalt concentrate are Fe, [Co]Fe, Fe3O4, and SiO2, and the main minerals in the iron concentrate are Fe3O4, FeO, Ca2Si2O4, and Ca2Al2O4.

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Recovery of Nickel and Copper from Polymetallic Sulfide Concentrate Through Salt Roasting Using Nh ₄ Cl

Xu¹,

Cheng²,

Li³

et al. 2016

7th International Symposium on High‐Temperature Metallurgical Processing

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A study of recovery of copper and cobalt from copper–cobalt oxide ores by ammonium salt roasting

Cited by 46 publications

References 7 publications

A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products

A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products

Extraction of Cobalt and Iron from Refractory Co-Bearing Sulfur Concentrate

Recovery of Nickel and Copper from Polymetallic Sulfide Concentrate Through Salt Roasting Using Nh ₄ Cl

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A study of recovery of copper and cobalt from copper–cobalt oxide ores by ammonium salt roasting

Cited by 46 publications

References 7 publications

A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products

A Review of the Occurrence and Promising Recovery Methods of Rare Earth Elements from Coal and Coal By-Products

Extraction of Cobalt and Iron from Refractory Co-Bearing Sulfur Concentrate

Recovery of Nickel and Copper from Polymetallic Sulfide Concentrate Through Salt Roasting Using Nh 4 Cl

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Recovery of Nickel and Copper from Polymetallic Sulfide Concentrate Through Salt Roasting Using Nh ₄ Cl