The present research paper deals with the oxidation process of molybdenum ore. The main target of the present study is the up-gradation of MoO3 from roasted molybdenum ore by a leaching process without waste generation. The most important application of hydrometallurgical processing is the leaching process of the ore and it is the primary process to make pure metal from ore. The present investi...

A typical South Crofty ore containing minor amounts of arsenopyrite and chalcopyrite (ore A) gives 65% overall recovery of cassiterite in the spiral circuit, overall enrichment ratios being about 25-35. Maximum recovery occurs in the size range 53-110 /Lm(Fig. 2). However, recently treated ore types (ore B) have been much richer in sulphides, yielding up to 30°" As in the recleaner table concen...

A double Ore extension is a natural generalization of the Ore extension. We prove that a connected graded double Ore extension of an ArtinSchelter regular algebra is Artin-Schelter regular. Some other basic properties such as the determinant of the DE-data are studied. Using the double Ore extension, we construct 26 families of Artin-Schelter regular algebras of global dimension four in a seque...

It is a popular countermeasure to add MgO into sinter cope with the use of high-Al2O3 iron ore. The effects particle size MgO-bearing flux on strength sintered sample (Fe2O3-MgO and Fe2O3-MgO-CaO series) are discussed in present work for purpose improving before after reduction. experimental results show that (1) increase fine light calcined magnesite (LCM) from 0 100%, compressive Fe2O3-MgO se...

Permeability and air flow rate in the bed during iron ore sintering is crucial to control sinter quality productivity, due its influence on flame front speed. In present work, permeability of an blend was analysed utilising simultaneously measured pressure temperature at multiple points bed. Three different zones were categorized, i.e., humidified (green) bed, region maximum resistance (high-te...

Twenty nine samples of silica sinter, ranging in age from modern to Miocene, record temporal changes in both mineralogy and texture. When ®rst deposited, sinters consist largely of noncrystalline spheres (<1±8 lm diameter) of opal-A exhibiting varying degrees of closepacking. Particle densities range from 1.5 to 2.1 g cm, total water 4±10 wt%, and porosities 35±60%. Changes over 10,000 years fo...