the cheshin meta-calcareous rocks (permo triassic) in southeast hamedan outcrop in association with a variety of pelitic schists and hornfels rocks. the intrusion of the alvand batholith (jurassic age) into pelitic and calcareous host rocks has produced metamorphic rocks in the hamedan area (cheshin village). on the basis of the dominance of calcite/dolomite, silicate and ore minerals, the calc...

Mathematical model for a pilot scale iron ore pellet induration furnace has been developed which considers the process of induration including the reactions of limestone, magnetite and coke. The differential equations of energy, mass and momentum are solved simultaneously. The profiles of temperature, pressure and concentration are obtained. Performing separate experiments on sub processes; dry...

Experiments to investigate the catalytic pyrolysis of methane using an iron ore-based catalyst were carried out optimize activity and examine purity carbon produced from process for first time. Ball milling ore at 300 rpm varying times – 30 330 min was studied determine effect time on conversion. Optimal 270 led a five-fold increase in conversion ca. 1%–5%. Further grinding resulted decline 4% ...

In this study, a novel technology for the comprehensive utilization of low-grade iron ore is presented. For with Fe content 24.91%, pilot-scale study pre-concentration, suspension magnetization roasting, grinding, and low-intensity magnetic separation was conducted, an concentrate grade 62.21% recovery 85.72% obtained. The products were analysed using chemical elemental analysis, particle size ...

Depletion of high-grade iron ore resources leads to increasing use concentrates as raw materials for sinter. One the methods effectively utilize such is Mosaic EmBedding Iron Ore Sintering (MEBIOS), which pre-granulated green pellets are charged into sintering bed with mixture other materials. In this study, effects type and gangue mineral components on strength sintered pellet prepared fine we...

the trace element contents on the surface originated from mineralization would depend to the thickness of the calcrete layer above the ore deposit on the surface. a very thick layer of calcrete may not allow for much dispersion of the elements of interest in the surface. these elements may be concentrated in non-magnetic and magnetic part of calcrete. based on the current research, mineralogica...

Magnetite is a representative ore mineral found in various deposits. The trace element composition of deposits controlled by several physiochemical factors such as temperature, pressure, and oxygen or sulfur fugacity. chemical behavior Germanium (Ge) distinct different environments. Consequently, the patterns Ge magnetite can be used to infer provenance conditions. This study focuses on from Wu...

Tin-bearing magnetite is reported from several types of magmatic-hydrothermal ore deposits. The question whether tin incorporated within solid solution, as Sn 4+ , or nanoinclusions remains open, however. We report a micron- to nanoscale investigation (Mg, Si)-bearing serpentinite in the Dulong Zn-Sn-In skarn, South China, with dual aims understanding mechanisms involved accommodating and assoc...

Magnetotatic bacteria have been isolated from iron cap belt of Cuddegali Voril Soddo iron ore mine. Here magnetic measurement and non magnetic analysis helps to detect biogenic magnetite in soil sample. The cultivation of magnetotactic bacteria was done in modified enrichment medium and incubated at room temperature (25–30 C). A short rod of magnetotactic bacteria contained two or more magnetos...