Author: Chen ChingPublisher:
ISBN:
Category : Arsenopyrite
Languages : en
Pages : 422
Book Description
A Fundamental Investigation of the Behavior of Arsenopyrite During Autoclave Oxidation of Refractory Gold Ores
Author: Chen ChingPublisher:
ISBN:
Category : Arsenopyrite
Languages : en
Pages : 422
Book Description
Autoclave Oxidation of Arsenical Gold and Silver Ores and Concentrates S
Author: Ben Amoah-ForsonPublisher:
ISBN:
Category : Cyanide process
Languages : en
Pages : 360
Book Description
A Mineralogical Investigation of Refractory Gold Ores and Their Beneficiation, with Special Reference to Arsenical Ores
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A mineralogical investigation of the main causes of refractoriness of some metallurgically complex gold ores in South Africa is reported. It is shown that this refractoriness is related to the presence of submicroscopic gold, carbonaceous material, pyrrhotite, and base-metal sulphides. Gold ores can be classified according to their content of these components. Electron-microprobe analysis shows that gold occurs in arsenopyrite and pyrite, the gold contents of which can be up to 2700 g/t. The gold and arsenic contents of these minerals are closely correlated. Furthermore, within zoned arsenopyrite grains, the concentration of gold closely follows that of arsenic. Mossbauer spectroscopy carried out on samples of concentrate from the Barberton area indicates that the submicroscopic gold within the sulphides is in a non-metallic form. The mineralogical examination of beneficiation products is important, since it sheds light on some fundamental aspects of the behaviour of the ore and gangue components during milling and flotation. Such basic information will lead ultimately to a better understanding of the problems in the beneficiation of these ores. Investigations have shown that the overmilling of the auriferous arsenopyrite and the disseminated nature of the sulphide mineralization are the main problems during beneficiation.
American Doctoral Dissertations
Author: Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 724
Book Description
Alkaline Oxidative Leaching of Gold-bearing Arsenopyrite Ores
Author: P. BhaktaThe Roasting of Refractory Gold Ores and Concentrates
Author: K. R. N. HansenMetals Abstracts
Author: Bacterial Oxidation of a Refractory Pyrite-arsenopyrite-gold Ore Concentrate
Author: Soumitro NagpalPublisher:
ISBN:
Category : Bacterial leaching
Languages : en
Pages : 264
Book Description
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 774
Book Description
A Fundamental Investigation of the High Temperature Oxidation of Gold Ores that Contain Sulfides and Carbonaceous Materials
Author: John W. FriesingerPublisher:
ISBN:
Category : Arsenic
Languages : en
Pages : 94
Book Description