نتایج جستجو برای: choghart iron ore mine

تعداد نتایج: 171992  

2007
Björn Kvarnström

A traceability system simplifies investigation of causes of product failures and is therefore vital for many industries. Traceability systems are extensively used in manufacturing industries, but creating traceability in continuous processes implies great challenges. The aim of this paper is to illustrate how traceability can be achieved in the distribution chain for iron ore pellets. Radio fre...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1962

Journal: :Issues in Informing Science and Information Technology 2013

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1962

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1962

2007

Recent research on BIF-related high-grade iron ore mineralization has resulted in new genetic models that emphasize the structurally controlled hypogene alteration and upgrade of BIF to high-grade (>65% Fe) iron ore. Conventional structural and stratigraphic mapping and reconstructions of the tectonic history of iron districts, in combination with high-tech geochemical analyses such as laser IC...

2010
B. Plante M. Benzaazoua B. Bussière M. C. Biesinger A. R. Pratt

0883-2927/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.apgeochem.2010.09.010 ⇑ Corresponding author. Fax: +1 819 797 4727. E-mail address: [email protected] (B. Plante). Sorption phenomena are known to play significant roles in metal mobility in mine drainage waters. The present study focuses on sorption phenomena controlling Ni concentrations in contaminated neutral drainage issue...

Journal: :international journal of iron & steel society of iran 2004
a saidi m shamanian m barati k azari

application of hyperactivation process in palletizing iron ore, in order to decrease bentoniteconsumption has been investigated. different amounts of bentonite and sodium hydroxide, as activating agents,were added to iron ore and the quality of formed pellets were determined. the results show that addition of 0.01pct. naoh improves the pellet quality significantly while the bentonite content re...

A. Rastgoo H. Amini Mashhadi, J. Vahdati Khaki

In this study, the isothermal reduction of iron oxide pellets, made of Iranian Chadormalo, Gole-gohar, and Sangan iron ores, was investigated in the temperature range of 900-1100°C. Tabas, Pabdana, Babnizoo, Karmozd, and Shahrood domestic coals were used as reductants. Parametric studies were performed and the effects of such factors as temperature, average particle size of iron ore and coal fi...

2005
C. Acharya R. N. Kar Vibhuti N. Misra

Bioleaching is technologically feasible for extraction of manganese from low grade ores (containing manganese less than 35% by weight). The principle involves the non-enzymatic reduction of pyrolusite [Mn(IV) oxides] to +2 oxidation state by fungi with the production of metabolites such as oxalic acid and citric acid. In the present investigation, a fungal strain, Penicillium citrinum was isola...

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