Concentration of bauxite fines via gravity concentration
نویسندگان
چکیده
منابع مشابه
Concentration of bauxite fines via froth flotation (
Companhia Brasileira de Alumínio (CBA) has bauxite processing plants at Poços de Caldas and Itamarati de Minas, and a new processing plant at Miraí that has been operating since June, 2008; all of them are in the State of Minas Gerais. The plants haveunits for the crushing, scrubbing and screening operations. The screened oversize is the concentrate or washed bauxite. At Itamarati de Minas, the...
متن کاملBayesian Factor Analysis via Concentration
We consider factor analysis when we assume the distribution form is known up to its mean and variance. A prior is placed on the mean and variance and then inference is made as to whether or not any latent factors exist. Inference is carried out by comparing the concentrations of the prior and posterior about various subsets of the parameter space that are specified by hypothesizing factor struc...
متن کاملCollaborative Filtering via Rating Concentration
While most popular collaborative filtering methods use low-rank matrix factorization and parametric density assumptions, this article proposes an approach based on distribution-free concentration inequalities. Using agnostic hierarchical sampling assumptions, functions of observed ratings are provably close to their expectations over query ratings, on average. A joint probability distribution o...
متن کاملEvaluation of Advanced Gravity and Magnetic Concentration of a PGM Tailings Waste for Chromite Recovery
This research was aimed at evaluating the efficiency of advanced gravity and magnetic separations on the recovery of chromite from the fine Platinum Group Metals (PGM) tailings consisting of particles 80% passing 75 µm with about 45% being >45 µm resulting in high chromite losses. The PGM plant tailings were subjected to X-ray fluorescence, scanning electron microscopy and particle size dis...
متن کاملConcentration of measures via size biased couplings
Let Y be a nonnegative random variable with mean μ and finite positive variance σ, and let Y , defined on the same space as Y , have the Y size biased distribution, that is, the distribution characterized by E[Y f(Y )] = μEf(Y s) for all functions f for which these expectations exist. Under a variety of conditions on the coupling of Y and Y , including combinations of boundedness and monotonici...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Rem: Revista Escola de Minas
سال: 2009
ISSN: 0370-4467
DOI: 10.1590/s0370-44672009000300004