the iranian east magmatic assemblage (iema) in the central lut region, hosted porphyry and vein-type polymetallic mineralization. the galechah-shurab mining district is located in nw of the iema. volcanic and subvolcanic bodies in the area are composed of calc-alkaline porphyry quartz-latite, porphyry dacite and rhyodacite and hornblende-biotite andesite, equivalent to i-type granite. they empl...

In the present study, characterization and beneficiation tests were performed on an iron ore sample to evaluation of separation efficiency (SE) different methods. Results showed that decrease in feed size fraction increases SE irrespective method. It was determined from liberation analyses increase values ​​at finer fractions is related with higher liberation. Calculated revealed operational pa...

As a result of the depletion high-grade manganese reserves, it has become necessary to consider exploitation low-grade ores. The main problem ore is low Mn/Fe ratio, which makes unfit for production ferroalloys. In this work, selective reduction technique was used smelting low-manganese in presence coke and fluxing material an electric submerged arc furnace obtain rich slag pig iron. product bl...

This paper describes the results of a beneficiation study conducted on low-grade fluorite ore. The was aimed at development suitable process to produce chemical grade concentrate. representative sample ore up-graded by leaching and flotation process. important parameters froth were optimized obtain highest recovery A single-factor variation method applied get optimum conditions rougher concentr...