The performance and kinetic of saprolitic laterite reduction using palm kernel shell charcoal anthracite were studied. coal represents the conventional high-grade carbon content matter, biomass-based reductant. experiment was conducted at a temperature ranging from 800oC 1000oC. XRD analysis applied to observe phase transformation. For study, two models, namely (1) Jander (2) Ginstling-Brounhst...

This paper presents a study on the thermal characterization of laterite used as building material. In Senegal, has been in construction semi-industrial scale since 1990s through projects aimed at promoting local materials that can contribute to energy efficiency buildings. The aim work is determine characteristics composite (laterite + peanut shell). results showed pure specimens have higher co...

Mine geologists use the term “garnierite” for the green Ni-rich silicate minerals that occur in many Ni-laterite deposits. However, garnierite is not a mineral species recognized by the Commission on New Mineral and Mineral Names (CNMMN). Actually, garnierite is a general name for the NiMg hydrosilicates that usually occur as an intimate mixture that commonly includes two or more of the followi...

Carajathemis simone n. gen., n.sp. from the state of Pará, Brazil, is described and illustrated based on 22 specimens collected in a "canga" (laterite) lake within the forest at the Flona de Carajás, Parauapebas Municipality. The new libellulid genus fits in the subfamily Sympetrinae and the male keys out to Erythemis in Garrison et al. (2006). The new taxon has a combination of characters that...

An enzyme-based drug, L-asparaginase, was produced by Nocardia levis MK-VL_113 isolated from laterite soils of Guntur region. Cultural parameters affecting the production of L-asparaginase by the strain were optimized. Maximal yields of L-asparaginase were recorded from 3-day-old culture grown in modified asparagine-glycerol salts broth with initial pH 7.0 at temperature 30°C. Glycerol (2%) and...