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...

24 25 Chemical weathering and mechanical erosion are first order processes of long-term 26 tropical morphogenesis, which is still poorly deciphered for lack of time constraints. We 27 address this issue by laser-probe 39 Ar40 Ar dating of generations of cryptomelane [K128 2Mn8O16, nH2O] from the manganese ore deposit of Tambao in northern Burkina Faso. This 29 Mn deposit results from the superg...

Formulation of the problem. Modern advances in oceanographic studies sedimentogenesis and orogenesis open up opportunities for in-depth study rocks by fold-nappe systems, including Carpathian region. Review previous research. On territory Carpathians flysch complexes researchers have mainly noted findings carbonates manganese iron nodules.At same time, contain iron-manganese oxide mineralizatio...

Eastern Indonesia, including the island of Halmahera, is a region with high mineral potential, particularly Ni-Co, Au-Cu, and Ag ores, which are globally important critical source raw materials (CRMs). The research was conducted within framework scientific cooperation between Faculty Geology, University Warsaw (Poland), PT Halmahera Resources Percasa Ltd. (Jakarta, Indonesia) Between years 2009...