Published March 1986 | Version v1
Journal article Metadata-only

Study of the concentration of niobium ore from CVRD (Companhia Vale do Rio Doce) in Tapira, Brazil

Creators

  • 1. Companhia Vale do Rio Doce, Belo Horizonte (Brazil). Superintendencia de Tecnologia

Description

The results of a test program in which pyrochlore was concentrated by flotation, are presented. The feed grade was 0.99%Nb2O5 and the concentrate obtained in batch tests was greater than 50% Nb2O5. A flowsheet for a pilot plant has been developed. (Author)

Abstract (Portuguese)

Apresenta-se um estudo de concentracao em escala de bancada, feito com amostra de minerio de niobio de Tapira. O teor inicial da amostra foi de 0,99% Nb2O5, sendo ainda rica em terras raras, enquanto o teor do concentrado obtido foi superior a 50% Nb2O5. Foi desenvolvido um fluxograma basico de concentracao, que orientou a construcao de uma planta piloto na Superientendencia de Tecnologia. (SUTEC). (Autor)

Additional details

Additional titles

Original title (Portuguese)
Estudo da concentracao de minerio de niobio da CVRD em Tapira

Publishing Information

Journal Title
CVRD Rev.
Journal Volume
7
Journal Issue
23
Series
CVRD Rev.
Journal Page Range
31-34
ISSN
0102-9541
CODEN
CVREE

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
19043956
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CHEMICAL ANALYSIS; FLOTATION; NIOBIUM ORES; NIOBIUM OXIDES; QUANTITY RATIO; RARE EARTHS
Descriptors DEC
CHALCOGENIDES; ELEMENTS; METALS; NIOBIUM COMPOUNDS; ORES; OXIDES; OXYGEN COMPOUNDS; SEPARATION PROCESSES; TRANSITION ELEMENT COMPOUNDS