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Decantation time of evaluation on bentonite clays fractionation; Avaliacao do tempo de decantacao no fracionamento de argilas bentonitas

Abstract

Bentonite clays present a great number of industrial uses, from petroleum to pharmaceutics and cosmetic industry. The bentonite clay present particles with very fine particles that is responsible by the vast application of these materials. However, commercial clays present wide particle size distribution and a significant content of impurities, particularly quartz, in the form of silt and fine silt. So, the aim of this work is to analyze the effect of the stirring and decantation time in the deagglomeration, purification and size separation of the bentonite clay particles from Paraiba. The clays were characterized by X-ray diffraction and particle size distribution. Based on the results it was observed the decantation time give the elimination of the agglomerates formed by submicrometric particles. The uses of decantation column give separation of the fraction below 200nm. (author)
Authors:
Gomes, J; Menezes, R R; Neves, G A; Lira, H L; Santana, L N.L., [1] 
  1. Universidade Federal de Campina Grande (UFCG), PB (Brazil). Dept. de Engenharia de Materiais
Publication Date:
Jul 01, 2009
Product Type:
Conference
Report Number:
INIS-BR-10253
Resource Relation:
Conference: 53. Brazilian congress on ceramics, 53. Congresso brasileiro de ceramica, Guaruja, SP (Brazil), 7-10 Jun 2009; Other Information: Code: 01-026.pdf
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BENTONITE; CRYSTALLOGRAPHY; DECANTATION; DIFFUSE SCATTERING; MONTMORILLONITE; QUARTZ; SEDIMENTATION; SEDIMENTS; SILT; STRUCTURAL CHEMICAL ANALYSIS; X RADIATION; X-RAY DIFFRACTION; CLAYS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; IONIZING RADIATIONS; MATERIALS; MINERALS; OXIDE MINERALS; RADIATIONS; SCATTERING; SEPARATION PROCESSES; SILICATE MINERALS
OSTI ID:
21513743
Research Organizations:
Associacao Brasileira de Ceramica (ABCeram), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
TRN: BR11V3412105281
Availability:
Available from INIS in electronic form
Submitting Site:
BRN
Size:
12 pages
Announcement Date:
Dec 10, 2011

Citation Formats

Gomes, J, Menezes, R R, Neves, G A, Lira, H L, and Santana, L N.L.,. Decantation time of evaluation on bentonite clays fractionation; Avaliacao do tempo de decantacao no fracionamento de argilas bentonitas. Brazil: N. p., 2009. Web.
Gomes, J, Menezes, R R, Neves, G A, Lira, H L, & Santana, L N.L.,. Decantation time of evaluation on bentonite clays fractionation; Avaliacao do tempo de decantacao no fracionamento de argilas bentonitas. Brazil.
Gomes, J, Menezes, R R, Neves, G A, Lira, H L, and Santana, L N.L.,. 2009. "Decantation time of evaluation on bentonite clays fractionation; Avaliacao do tempo de decantacao no fracionamento de argilas bentonitas." Brazil.
@misc{etde_21513743,
title = {Decantation time of evaluation on bentonite clays fractionation; Avaliacao do tempo de decantacao no fracionamento de argilas bentonitas}
author = {Gomes, J, Menezes, R R, Neves, G A, Lira, H L, and Santana, L N.L.,}
abstractNote = {Bentonite clays present a great number of industrial uses, from petroleum to pharmaceutics and cosmetic industry. The bentonite clay present particles with very fine particles that is responsible by the vast application of these materials. However, commercial clays present wide particle size distribution and a significant content of impurities, particularly quartz, in the form of silt and fine silt. So, the aim of this work is to analyze the effect of the stirring and decantation time in the deagglomeration, purification and size separation of the bentonite clay particles from Paraiba. The clays were characterized by X-ray diffraction and particle size distribution. Based on the results it was observed the decantation time give the elimination of the agglomerates formed by submicrometric particles. The uses of decantation column give separation of the fraction below 200nm. (author)}
place = {Brazil}
year = {2009}
month = {Jul}
}