A Green Enriching Process of Mn from Low Grade Ore of Manganese Carbonate

Da Sun; Mao Lin Li; Can Hua Li; Rui Cui; Xia Yu Zheng

doi:10.4028/www.scientific.net/AMM.644-650.5427

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650A Green Enriching Process of Mn from Low Grade Ore...

A Green Enriching Process of Mn from Low Grade Ore of Manganese Carbonate

Abstract:

The ammonium salt roasting method is proposed to enrich and recover Mn from low grade ore of manganese carbonate. It included a process of mixing the ore with NH₄Cl by ball milling, roasting this mixed ore in pipe stove at 450°Cfor one hour and leaching the calcine with hot water to obtain MnCl₂ solution. Further, manganese is precipitated by NH₃·H₂Oand CO₂ released from roasting process, washing and drying to get concentrated manganese ore. The NH₄Cl obtained by vaporizing the filtrate solution can be reused for the ammonium salt roasting process. The result indicates that Mn recovery rate can be reached to be more than 90%. This method is considered to be a green chemistry process to enrich and recover Mn from low grade ore of manganese carbonate.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

5427-5430

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.5427

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Online since:

September 2014

Authors:

Da Sun*, Mao Lin Li, Can Hua Li, Rui Cui, Xia Yu Zheng

Keywords:

Ammonium Salt, Chemical Beneficiation, Enrich Green Chemistry Process, Manganese Carbonate

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