Controlled double-jet precipitation of sparingly soluble salts. A method for the preparation of high added value materials

Jiří Stávek, Milan Šípek, Izumi Hirasawa, Ken Toyokura

    Research output: Contribution to journalArticle

    51 Citations (Scopus)

    Abstract

    In recent years considerable attention is given to the development of methods for the preparation of microcrystals with a narrow crystal size distribution (CSD). One promising technique, been developed for the preparation of silver halides crystals, is controlled double-jet precipitation (CDJP). In the CDJP the cation and anion solutions are added simultaneously through separate input lines to a stirred solution oi a lyophihc polymer. The formation and growth of monodisperse microcrystals in the bulk of crystallizer and the nucleation of unstable nuclei or primary particles formed near jets occur simultaneously during the whole run. The monodisperse particles are prepared if these unstable nuclei or primary particles continuously disappear from the system by controlled Ostwald ripening or controlled agglomeration, and the matter serves as a source for the growth of constant number of stable particles. The objective of this contribution is to survey this unique precipitation technique while the concept of CDJP can be used in general for the precipitation of various sparingly soluble salts.

    Original languageEnglish
    Pages (from-to)545-555
    Number of pages11
    JournalChemistry of Materials
    Volume4
    Issue number3
    Publication statusPublished - 1992

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    Salts
    Microcrystals
    Silver halides
    Crystallizers
    Ostwald ripening
    Crystals
    Anions
    Cations
    Polymers
    Nucleation
    Negative ions
    Agglomeration
    Positive ions

    ASJC Scopus subject areas

    • Materials Chemistry
    • Materials Science(all)

    Cite this

    Controlled double-jet precipitation of sparingly soluble salts. A method for the preparation of high added value materials. / Stávek, Jiří; Šípek, Milan; Hirasawa, Izumi; Toyokura, Ken.

    In: Chemistry of Materials, Vol. 4, No. 3, 1992, p. 545-555.

    Research output: Contribution to journalArticle

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