نتایج جستجو برای: chromite ore deposits

تعداد نتایج: 37749  

Journal: :Journal of Cleaner Production 2021

Chromite ore processing tailing, a solid waste generated during the of chromite ore, is difficult to recover due its ultra-fine size. The tailings from process contains valuable and iron-bearing minerals, loss which matter concern for ferrochrome industry worldwide. Tailings plant mainly dumped, causing space environmental concerns. Researchers worldwide have carried out rigorous study on recov...

Journal: :Rapport Grønlands Geologiske Undersøgelse 1967

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1941

Journal: :Journal of the Mining and Metallurgical Institute of Japan 1971

2017
Theodore J. Bornhorst Ryan Mathur

The Keweenaw Peninsula native copper district of Michigan, USA is the largest concentration of native copper in the world. The copper isotopic composition of native copper was measured from stratabound and vein deposits, hosted by multiple rift-filling basalt-dominated stratigraphic horizons over 110 km of strike length. The δ65Cu of the native copper has an overall mean of +0.28‰ and a range o...

2013
Veerendra Singh P K Banerjee S K Tripathy

Milling is a vital unit operation in various material processing operations and consumes around 2% of the energy produced in the world [1,2]. It dictates the cost economics of mineral, cement, power, pharmaceutical and ceramic industries. Grinding is an important unit operation for chrome ore pelletisation process. Chromite ore along with 5% coke is milled in the wet ball mill and filtered ore ...

Journal: :The Mining-Geological-Petroleum Engineering Bulletin 2023

The rapid development of industry increases the demand and importance chromium. In this study, beneficiation possibilities representative chromite ore taken from Tokat Province with a laboratory type jig, spiral concentrator, shaking table multi gravity separator (MGS) were investigated. Appropriate particle size fractions fed into each device. Experimental studies shown as flow chart. gave bes...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
R B Gordon M Bertram T E Graedel

The relative proportions of metal residing in ore in the lithosphere, in use in products providing services, and in waste deposits measure our progress from exclusive use of virgin ore toward full dependence on sustained use of recycled metal. In the U.S. at present, the copper contents of these three repositories are roughly equivalent, but metal in service continues to increase. Providing tod...

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