Results 91 to 100 of about 8,830 (171)

Applicability of Mozley multigravity separator (MGS) to fine chromite tailings of Turkish chromite concentrating plants

, 2002
The total amount of fine chromite gravity tailings in Turkey is around 3,000,000 tons with a quite high Cr2O3 content of abo 9-20%. These fines are produced as a result of the inefficiency of conventional separation equipment at fine particle size due to
Cicek, T, Cöcen I., I Cöcen, Cocen, I, T Çiçek, Çiçek T.   +5 more
core   +1 more source

Metamorphism on Chromite Ores from the Dobromirtsi Ultramafic Massif, Rhodope Mountains (SE Bulgaria)

Geologica Acta, 2009
Podiform chromitite bodies occur in highly serpentinized peridotites at Dobromirtsi Ultramafic Massif (Rhodope Mountains, southeastern Bulgaria). The ultramafic body is believed to represent a fragment of Palaeozoic ophiolite mantle.
J.M. GONZÁLEZ JIMÉNEZ, T. KERESTEDJIAN, J.A. PROENZA FERNÁNDEZ, F. GERVILLA LINARES   +3 more
doaj  

A Preliminary Investigation of Chromite [PDF]

, 1947
The purpose of this thesis was to study the effects of cryolite and a mixture of cryolite and aluminum oxide on a chromite concentrate with special reference to the ability to break the bond between the ferrous iron and chromic oxide in the ...
Brown, Lester C.
core   +1 more source

Eluvial chromite resources of the Great Dyke of Zimbabwe [PDF]

, 2007
Apart from the concentrations of chromite in layers within the Great Dyke and other ultramafic complexes, chromite also occurs as interstitial grains throughout the olivine-bearing rock-types.
Musa, Caston Tamburayi
core   +1 more source

Determination of Anomaly Source Border Using Reweighting Focusing Inversion of Two-Dimensional Gravity Horizontal Gradient Data and Conventional Edge Detection Methods (Case Study: A Chromite Mass in Sabzevar, Iran)

Geofísica Internacional
There are numerous methods to detect the edge of gravity and magnetic field anomaly source, most of which are based on the combination of first and second-order horizontal and vertical gradients of the potential field.
Mahsa Kabiri, Zohreh Sadat Riazi Rad
doaj   +1 more source

Roasting and Leaching of Montana Chromite [PDF]

, 1948
The United States, although the leading consumer of chromite, depends almost entirely on imports for its supply. Domestic production of chromite is limited, because high-grade imported ore is plentiful and inexpensive in normal times.
Murphy, Jerry D.
core  

Podiform Chromitites in the Sorkhband Ultramafic Complex, Southern Iran: Evidence for [PDF]

Journal of Sciences, Islamic Republic of Iran, 2008
The podiform chromitite deposits of the Ordovician Sorkhband ultramafic complex, southwestern Makran, are the largest chromitite deposits in Iran. The Sorkhband ultramafic complex comprises of a northern part of dunite, podiform chromitite, olivine ...
doaj  

An Overview of H2 and CH4 as Environmentally Sustainable Alternative Reductants to C for Chromite Smelting

Advanced Energy & Sustainability Research
The application of hydrogen (H2) and methane (CH4) as gaseous reductants for pure chromite (FeCr2O4) is reviewed in four theoretical approaches. These approaches are evaluated against the conventional process, where the sole reductant is a solid carbon ...
Margaretha Susanna Ernst, Stephanus Petrus Du Preez   +1 more
doaj   +1 more source

Comparative Performance of Bio-Carbon and Petroleum Coke as Reductants in CaCl₂ Assisted Direct Reduction of Chromite. [PDF]

Materials (Basel)
Carter D, Coumans JP, Zagrtdenov N, Duguay D, Paktunc D.   +4 more
europepmc   +1 more source

Global variation in chromite trace element compositions

Chromite [(Mg, Fe2+)(Cr, Al, Fe3+)2O4] is an early crystallizing phase in mafic-ultramafic magmas and a refractory phase during partial melting of the mantle.
Tonboe, Emil Akseli Koskinen, Waterton, Pedro   +1 more
core   +1 more source