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Preparation of spherical zirconium salt particles by homogeneous precipitation

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Abstract

Spherical basic zirconium sulphate particles were prepared by homogeneous precipitation in mixed solutions of zirconium sulphate and urea. Values of [SO 2−4 ]/[Zr4+] and [urea]/[Zr4+] in starting mixed solutions and cooling rate may affect the formation of spherical particles. Complexes such as [Zr(OH)n]4−n could prevent the formation and thus lead to gel precipitation. In addition, spherical particles could only be obtained in the presence of SO 2−4 ; for NO3− and Cl−, only gel precipitation occurred.

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Authors and Affiliations

  1. Shanghai Institute of Ceramics, 1295 Ding-Xi Road, 200050, Shanghai, China

    J. L. Shi & J. H. Gao

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  1. J. L. Shi
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  2. J. H. Gao
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Shi, J.L., Gao, J.H. Preparation of spherical zirconium salt particles by homogeneous precipitation. JOURNAL OF MATERIALS SCIENCE 30, 793–799 (1995). https://doi.org/10.1007/BF00356344

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  • DOI: https://doi.org/10.1007/BF00356344

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