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Production of Spherical Powders of Inorganic Compounds by Water Extraction Variant of Sol-Gel Process

Published online by Cambridge University Press:  25 February 2011

A. DeptuLa ,
J. Rebandel ,
W. Drozda ,
W. Lada  and
T. Olczak
A. DeptuLa
Affiliation:
Institute of Nuclear Chemistry and Technology, Warsaw, Poland
J. Rebandel
Affiliation:
Institute of Nuclear Chemistry and Technology, Warsaw, Poland
W. Drozda
Affiliation:
Institute of Nuclear Chemistry and Technology, Warsaw, Poland
W. Lada
Affiliation:
Institute of Nuclear Chemistry and Technology, Warsaw, Poland
T. Olczak
Affiliation:
Institute of Nuclear Chemistry and Technology, Warsaw, Poland
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Abstract

A method of preparation of spherical powders (with particle diameters <100µm) of metal oxidcs, their homegeneous mixtures or compounds, composites and metals has been elaborated. Depending on the nature of cations, the starting solutions were prepared by extraction of anions with Primene JMT from salt solutions, by addition of dopants to the sols or by complexing with acetic acid or/and ammonia. The sols or broths were then emulsified in 2-ethyl-l-hexanol containing SPAN 80. Drops of the emulsion were solidified by extraction of water with the solvent. The process was carried out continuously in a laboratory and/or in a pilot plant.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 277
Copyright
Copyright © Materials Research Society 1992

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References

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