Journal ArticleDOI
Investigation of the oxidation of metal sulphides and sulphide concentrates
R. Dimitrov,B. Boyanov +1 more
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In this article, a systematic investigation of the oxidation of metal sulphides and sulphide concentrates by various methods, including chemical, mineralogical and sieve analysis, together with combined DTA, DTG and gas phase analysis, was conducted.About:
This article is published in Thermochimica Acta.The article was published on 1983-06-01. It has received 34 citations till now.read more
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Alternative processes for treatment of chalcopyrite —A review
Sanjay Prasad,Banshi Dhar Pandey +1 more
TL;DR: In this article, a review of the work carried out on oxidative roasting of chalcopyrite and related constituents such as copper sulphide and iron sulphide is presented.
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Kinetics and mechanism of the chalcopyrite-pyrite concentrate oxidation process
TL;DR: The results of comparative DTA-TG-DTG analysis of the chalcopyrite-pyrite concentrate oxidative roasting process are presented in this article, where the authors define the chemistry of the process characteristic of the system investigated is defined on the basis of comparative analysis of chemical potential change in the log p SO 2 -log p O 2 diagram, X-ray analysis of oxidation products at 723, 873 and 1273 K.
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Thermal decomposition of pyrite
TL;DR: In this paper, the thermal decomposition of natural pyrite (cubic, FeS2) has been investigated using X-ray diffraction and 57Fe Mossbauer spectroscopy.
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Investigation of the propensity of sulfide concentrates to spontaneous combustion in storage
Fuqiang Yang,Chao Wu,Zi-jun Li +2 more
TL;DR: In this paper, two representative samples (sulfur-rich and iron-rich sulfide concentrates) were investigated for the self-heating behavior using the crossing-point temperature (CPT) method.
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Mechanism of zinc sulphide oxidation
R. Dimitrov,I.K. Bonev +1 more
TL;DR: In this article, a multi-strata, strongly porous, finely grained oxide product has been obtained and the layers have a thickness of 5-20 μm and are marked off by cracks up to 1-2 μm wide.