Leaching of impurities for the up-gradation of molybdenum oxide and cementation of copper by scrap iron

Kim, Byung-Su; Jha, Manis Kumar; Jeong, Jaeseung; Lee, Jae-chun

doi:10.1016/j.minpro.2008.04.002

Cited by 12 publications

(3 citation statements)

References 9 publications

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“…Cementation is a metal-replacement process in which a solution containing the dissolved metallic ions comes in contact with a more active metal such as iron [25,26]. Cementation is thus the Copper is cemented onto the iron and scraped off as particulate copper as it tumbles within the drum [27].…”

Section: Cementationmentioning

confidence: 99%

Review for Physical and Chemical Process for Heavy Metal Treatment

Jeon¹

2012

Clean Technology

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Many researchers have studied that many processes to effectively remove heavy metals in water/wastewater. Especially, among many processes, physical and chemical processes are relatively simple and obtain high treatment efficiency for removal heavy metals compared with biological treatment. Recently, interests in physical and chemical methods are sharply increasing again because of dangerousness for radioactive element. In this study, various physical and chemical processes such as chemical precipitation, ion-exchange, electrodialysis, and membrane separation are introduced.

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Section: Cementationmentioning

confidence: 99%

Review for Physical and Chemical Process for Heavy Metal Treatment

Jeon¹

2012

Clean Technology

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“…Generally, molybdenum metal is produced from its high grade sulphide ore, molybdenite, and ferrotantalite through oxidative roasting, purification of calcine, and hydrogen reduction of molybdenum oxide. 11 It is usually that molybdenum always is associated with heavy metals such as copper, iron, and other trace elements. Therefore, removal and recovery of molybdenum from mixtures with copper and iron are of significant importance from an economical point of view.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Molybdenum is a strategic metal in the industrial sector and in medicine and a necessary element for the human body and plants. − At present, the demand of molybdenum has been rising due to demand on the part of emergent economies. Generally, molybdenum metal is produced from its high grade sulphide ore, molybdenite, and ferrotantalite through oxidative roasting, purification of calcine, and hydrogen reduction of molybdenum oxide . It is usually that molybdenum always is associated with heavy metals such as copper, iron, and other trace elements.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Mo(VI) Selective Separation by Eriocheir sinesis Crab Shells Gel

Xiong

Ren

et al. 2013

Ind. Eng. Chem. Res.

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In the present study, crab shell chitin (CSC) has been used for the recovery of Mo(VI) from Cu/Fe containing solutions. The CSC gel showed a high affinity for Mo(VI) compared with other adsorbents, and the maximum adsorption capacity was evaluated as 252.27 mg g −1 in the case of pH 1, which could be explained by the structure of the CSC gel, containing more reactive −OH and/or −NH groups binding Mo(VI) ions. The experimental results fit satisfactorily to the Langmuir isotherm in comparison to the Freundlich, Temkin, and Dubinin−Radushkevich models. Biosorption kinetics data were successfully modeled using a nonlinear pseudo-second-order model. The sorption mechanism was investigated in detail through FTIR, EDS, and the percentage of positively charged amide analyses. Moreover, its excellent adsorption properties and applicability for Mo(VI) were demonstrated by the recovery and separation of Mo(VI) from Cu or/and Fe binary and ternary mixtures.

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