Since the start-up of Sossego copper concentrator, located in Carajás Mineral Province southeast Para State, Brazil, low-grade ore (~0.34% Cu) has been stockpiled, as defined long-term mine plan, to be reclaimed at end life. Given this imminent need process around 40 Mt ore, questions have raised related extent oxidation that might occurred stockpiled ore. In context, a study was designed chara...

Based on the data of global mineral production and ore recovery in mining processing, this paper presents annual 25 minerals calculates losses 20 from year 1920 to 2018. The results indicate that 23 has increased by between 1 930 times since 1920, similar increase GDP per capita 1960. At same time, a vast amount been lost processing 1920. Hence, discusses possibility increasing ratio.

The technological mineralogical characteristics of cesium-containing minerals in tailings were examined by means chemical analysis, the energy spectrum analysis method, and MLA (mineral liberation analyzer) to determine element content, phase associated mineral components, degree liberation, particle size, etc. results showed that samples mainly contained spodumene, quartz, feldspar, mica, othe...

Background Despite the decreasing rate of under nutrition children in recent years overall, the negative affect in growth and development make it as a main concern in the world. Applying an available and appropriate supplementary food is a major approach in treating children with Moderate Acute Malnutrition (MAM). Objective To compare the effectiveness of a new supplementary blended flour (co...