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Preparation of alumina microspheres. Its application as in inorganic exchanger

Journal Article:

Abstract

Inorganic exchangers are widely used for adsorption and column partition chromatography. The main difficulty of using commercial alumina (in powder) for column chromatography is related to its packing, and the operations through the column become diffcult and time-consuming; also it turns to be virtually impossible to use large dimension columns. In order to eliminate these problems, a process for the preparation of alumina microspheres was developed as an adaptation of a similar process used to prepare nuclear fuel microspheres (UO/sub 2/, ThO/sub 2/). The flowsheet of this process is presented together with the analytical results of sphericity after calcination, granulometry, density and characterization by X-ray diffractometry. Solubility tests showed that the so-prepared microspheres are well resistant to strong acids and bases; retention tests showed their efficiency, mainly to copper.
Authors:
Santos, W.R. dos; Abrao, A [1] 
  1. Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo (Brazil). Centro de Engenharia Quimica
Publication Date:
Jan 01, 1980
Product Type:
Journal Article
Reference Number:
AIX-16-023723; EDB-85-104169
Resource Relation:
Journal Name: An. Assoc. Bras. Quim.; (Brazil); Journal Volume: 31:3/4
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; CHEMICAL PREPARATION; MICROSPHERES; ADSORPTION; DENSITY; DIAGRAMS; EXTRACTION CHROMATOGRAPHY; FLOWSHEETS; INORGANIC ION EXCHANGERS; SOLUBILITY; THORIUM 234; THORIUM OXIDES; URANIUM DIOXIDE; X-RAY DIFFRACTION; ACTINIDE COMPOUNDS; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALUMINIUM COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHALCOGENIDES; CHROMATOGRAPHY; COHERENT SCATTERING; DAYS LIVING RADIOISOTOPES; DIFFRACTION; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ION EXCHANGE MATERIALS; ISOTOPES; MATERIALS; NUCLEI; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RADIOISOTOPES; SCATTERING; SEPARATION PROCESSES; SORPTION; SYNTHESIS; THORIUM COMPOUNDS; THORIUM ISOTOPES; URANIUM COMPOUNDS; URANIUM OXIDES; 360201* - Ceramics, Cermets, & Refractories- Preparation & Fabrication
OSTI ID:
5740723
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Journal ID: CODEN: AABQA
Submitting Site:
HEDB
Size:
Pages: 41-46
Announcement Date:

Journal Article:

Citation Formats

Santos, W.R. dos, and Abrao, A. Preparation of alumina microspheres. Its application as in inorganic exchanger. Brazil: N. p., 1980. Web.
Santos, W.R. dos, & Abrao, A. Preparation of alumina microspheres. Its application as in inorganic exchanger. Brazil.
Santos, W.R. dos, and Abrao, A. 1980. "Preparation of alumina microspheres. Its application as in inorganic exchanger." Brazil.
@misc{etde_5740723,
title = {Preparation of alumina microspheres. Its application as in inorganic exchanger}
author = {Santos, W.R. dos, and Abrao, A}
abstractNote = {Inorganic exchangers are widely used for adsorption and column partition chromatography. The main difficulty of using commercial alumina (in powder) for column chromatography is related to its packing, and the operations through the column become diffcult and time-consuming; also it turns to be virtually impossible to use large dimension columns. In order to eliminate these problems, a process for the preparation of alumina microspheres was developed as an adaptation of a similar process used to prepare nuclear fuel microspheres (UO/sub 2/, ThO/sub 2/). The flowsheet of this process is presented together with the analytical results of sphericity after calcination, granulometry, density and characterization by X-ray diffractometry. Solubility tests showed that the so-prepared microspheres are well resistant to strong acids and bases; retention tests showed their efficiency, mainly to copper.}
journal = {An. Assoc. Bras. Quim.; (Brazil)}
volume = {31:3/4}
journal type = {AC}
place = {Brazil}
year = {1980}
month = {Jan}
}