UPGRADING NICKELIFEROUS PYRRHOTITE CONCENTRATES BY AQUEOUS OXIDATION COUPLED WITH PRECIPITATION AND FLOTATION

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	UPGRADING NICKELIFEROUS PYRRHOTITE CONCENTRATES BY AQUEOUS OXIDATION COUPLED WITH PRECIPITATION AND FLOTATION
	Deng, T.
刊名	International Journal of Mineral Processing
	1995
期号	1-2 页码:91-98
其他题名	Int. J. Miner. Process.
中文摘要	As pyrrhotite either dilutes nickel concentrates when recovered or causes significant metals loss and potential environmental harassments if discarded, production of separate pyrrhotite concentrate was thought as a reasonable alternative; however, processing it presents a challenge. A new process was studied to upgrade nickeliferous pyrrhotite concentrates using aqueous pressure oxidation under mild conditions, followed by sulfide precipitation and flotation. The effects of operation parameters such as oxygen pressure, temperature, initial acidity, retention time and concentrate composition were investigated. Pyrrhotite was found to be readily converted into iron oxide. The metal values present in the concentrate, principally nickel and copper, were dissolved in part as pyrrhotite was oxidized, then precipitated from the pulp as sulfides and finally recovered by flotation as a much higher grade concentrate with unreacted sulfide minerals and the produced elemental sulfur together. The pyrrhotite reporting to the leach residue as iron oxide was thus rejected in the flotation tailings.
收录类别	SCI
原文出处	://WOS:A1995RG06100009
语种	英语
公开日期	2013-11-15
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/6102]
专题	过程工程研究所_研究所（批量导入）
推荐引用方式 GB/T 7714	Deng, T.. UPGRADING NICKELIFEROUS PYRRHOTITE CONCENTRATES BY AQUEOUS OXIDATION COUPLED WITH PRECIPITATION AND FLOTATION[J]. International Journal of Mineral Processing,1995(1-2):91-98.
APA	Deng, T..(1995).UPGRADING NICKELIFEROUS PYRRHOTITE CONCENTRATES BY AQUEOUS OXIDATION COUPLED WITH PRECIPITATION AND FLOTATION.International Journal of Mineral Processing(1-2),91-98.
MLA	Deng, T.."UPGRADING NICKELIFEROUS PYRRHOTITE CONCENTRATES BY AQUEOUS OXIDATION COUPLED WITH PRECIPITATION AND FLOTATION".International Journal of Mineral Processing .1-2(1995):91-98.