O potássio é um dos principais macronutrientes presentes no solo. Entretanto, no Brasil este
se torna escasso devido à elevada acidez dos solos tropicais. Dessa forma, a demanda por …

Samples of Kaolin from different regions in Brazil were characterized by XRD, SEM and
chemical analysis. A chemical bleaching study with pH adjustment was accomplished with …

Bauxite from Pará is divided into five different layers. However, only one is processed. The
crystallized-amorphous (CAB) phase is considered a marginal bauxite because it presents a …

Abstract In Northern Brazil, bauxite pulp is transported through pipelines to the plant where
alumina is produced. In slurry transportation through pipelines, knowing the yield stress …

Abstract Bauxite from Paragominas (Pará/Brazil) was ore dressed and characterized by
XRD, XRF, chemical and thermal analysis. XRD was performed to determine the mineral …

The crystallized layer that compounds the bauxite's geological profile from NE Pará was ore
dressed through the processes of crushing, screening, washing and grinding, in order to …

As camadas de bauxita cristalizada (BC) e bauxita cristalizada amorfa (BCA) que compõem
o perfil geológico do nordeste do Pará foram submetidas às etapas de beneficiamento e …

Cationic reverse flotation of kaolinite from bauxite is an alternative to adequate high silica
bauxites to the specifications of the Bayer process. However, the presence of clay minerals …

Abstract The Bauxite of Northern Brazil is characterized by a geological profile with five
different layers: nodular, crystallized nodular, crystallized, crystallized-amorphous and …

A bauxita é composta por uma mistura impura de minerais de alumínio-sendo os mais
importantes a gibbsita (Al (OH3)), o diásporo (AlO (OH)) e a boehmita (AlO (OH))–utilizada …