A study on the quantitative leaching of iron ore in hydrochloric acid solution has been undertaken. The elemental composition of the iron ore was also carried out using ICP-MS technique. The major elements in the iron ore include: Fe(66.7%); Al (0.2%); Si (5.2%); Ti (0.02%) and O (28.0%). Some traces of V, Ni, Zn, Ce, Cr, La, Y and Zr were also found. The effects of contact time, acid concentra...

Carbonatites and related rocks are the premier source for light rare earth element (LREE) deposits. Here, we outline an ore formation model LREE-mineralised carbonatites, reconciling field petrological observations with recent experimental isotopic advances. The LREEs can strongly partition to carbonatite melts, which either directly mantle-derived or immiscible from silicate melts. As melts ev...

Abstract The paper considers the relationship between textural and structural features gross mineral chemical composition of minerals physical properties apatite-nepheline ores their processing. It is noted that change in involves primarily due to apatite depletion. An increase content nepheline pyroxene 35-55 % sharply increases ore strength up 47-104 MPa, which entails growth energy consumpti...

Tungsten is one of the strategic metals produced from tungsten ores through sodium tungstate. The hydrometallurgical process a common technology for extracting tungstate high-grade concentrates. grade ore decreasing, and mineral processing to produce concentrate suitable becoming more difficult. It desirable develop new effectively recover complex low-grade ores. A fundamental study on pyrometa...

A mineralogical study of Gonçalo lithium-bearing mica-rich pegmatite ore (Portugal) indicated that lepidolite occurs in coarse-grained textures, which allows an appreciable liberation gangue minerals (quartz, k-feldspar, and albite) from lepidolite. However, the intergrowth these results uncomplicated (i.e., inclusions). Taking advantage this coarse liberation, optical sorting through image ana...

Water scarcity is compelling mining houses to not only recycle process water but also identify alternative sources of make-up in concentrators. South Africa has significant volumes acid mine drainage (AMD) generated from vast operations. This study investigated the viability using AMD as a replacement for potable flotation platinum-group-minerals (PGM)-bearing Merensky ore. Rougher and cleaner ...

Iron ores are used in blast furnace for the production of pig iron; AGBAJA Iron ore has an estimated reserve of over I billion metric tonnes. Unfortunately, this large reserve cannot be utilized for the production of pig iron due to its high sulphur contents. This work studied the reduction of sulphur content of AGBAJA iron ore. Acid leaching methods were used to reduce sulphur contents of the ...

If JR is a ring, and G is a group of automorphisms of R, then R denotes the subring of R consisting of elements of R left fixed by every element of G, and is called the Galois subring corresponding to G. In his paper, Groups acting on hereditary rings, G. M. Bergman has asked if every Galois subring of a right Ore domain corresponding to a finite group is itself right Ore. In this note we show ...

An orthogonal Ore algebra is an abstraction of common properties of linear partial differential, shift and q-shift operators. Using orthogonal Ore algebras, we present an algorithm for finding hyperexponential solutions of a system of linear differential, shift and q-shift operators, or any mixture thereof, whose solution space is finite-dimensional. The algorithm is applicable to factoring mod...

The relations between evaluation of Ore polynomials and pseudo-linear transformations are studied. The behavior of these transformations under homomorphisms of Ore extensions, in particular with respect to algebraicity, is analyzed leading to characterization of left and right primitivity of an Ore extension. Necessary and sufficient conditions are given for algebraic pseudo-linear transformati...