Effect of feeding condition on crystal size distributions of mono-dispersed SrSO4 particles produced via PEI-Assisted double-jet reactive crystallization

Takashi Mikami, Takahiro Sakuma, Izumi Hirasawa

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Micron-sized SrSO4 particles having mono-dispersed/narrow distributions have been produced with a double-jet semi-batch reactive crystallizer. Slow molar feedings over a short time maintained proper supersaturation levels and result in narrow distributions due to the prevention of agglomeration growth of small primary precipitates. Furthermore, polyethylenimine (PEI) is a suitable growth/agglomeration inhibitor for sulfate precipitation, e.g., SrSO4 and PbSO4, and effectively reduced particle sizes leading to single-micron products. Besides feeding conditions, in the present work, the influence of PEI dosage on crystal size distributions (CSDs) is investigated. The controlled double-jet feeding using a polyelectrolyte additive such as PEI will be a powerful methodology to obtain agglomeration-free uniform micro-powders as a final solid product.

    Original languageEnglish
    Pages (from-to)300-307
    Number of pages8
    JournalJournal of Chemical Engineering of Japan
    Volume43
    Issue number3
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    Polyethyleneimine
    Crystallization
    Agglomeration
    Crystals
    Crystallizers
    Growth Inhibitors
    Supersaturation
    Polyelectrolytes
    Powders
    Sulfates
    Precipitates
    Particle size

    Keywords

    • Double-jet crystallization
    • Mono-dispersed particles
    • Polyelectrolyte additive

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Chemistry(all)

    Cite this

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    abstract = "Micron-sized SrSO4 particles having mono-dispersed/narrow distributions have been produced with a double-jet semi-batch reactive crystallizer. Slow molar feedings over a short time maintained proper supersaturation levels and result in narrow distributions due to the prevention of agglomeration growth of small primary precipitates. Furthermore, polyethylenimine (PEI) is a suitable growth/agglomeration inhibitor for sulfate precipitation, e.g., SrSO4 and PbSO4, and effectively reduced particle sizes leading to single-micron products. Besides feeding conditions, in the present work, the influence of PEI dosage on crystal size distributions (CSDs) is investigated. The controlled double-jet feeding using a polyelectrolyte additive such as PEI will be a powerful methodology to obtain agglomeration-free uniform micro-powders as a final solid product.",
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    TY - JOUR

    T1 - Effect of feeding condition on crystal size distributions of mono-dispersed SrSO4 particles produced via PEI-Assisted double-jet reactive crystallization

    AU - Mikami, Takashi

    AU - Sakuma, Takahiro

    AU - Hirasawa, Izumi

    PY - 2010

    Y1 - 2010

    N2 - Micron-sized SrSO4 particles having mono-dispersed/narrow distributions have been produced with a double-jet semi-batch reactive crystallizer. Slow molar feedings over a short time maintained proper supersaturation levels and result in narrow distributions due to the prevention of agglomeration growth of small primary precipitates. Furthermore, polyethylenimine (PEI) is a suitable growth/agglomeration inhibitor for sulfate precipitation, e.g., SrSO4 and PbSO4, and effectively reduced particle sizes leading to single-micron products. Besides feeding conditions, in the present work, the influence of PEI dosage on crystal size distributions (CSDs) is investigated. The controlled double-jet feeding using a polyelectrolyte additive such as PEI will be a powerful methodology to obtain agglomeration-free uniform micro-powders as a final solid product.

    AB - Micron-sized SrSO4 particles having mono-dispersed/narrow distributions have been produced with a double-jet semi-batch reactive crystallizer. Slow molar feedings over a short time maintained proper supersaturation levels and result in narrow distributions due to the prevention of agglomeration growth of small primary precipitates. Furthermore, polyethylenimine (PEI) is a suitable growth/agglomeration inhibitor for sulfate precipitation, e.g., SrSO4 and PbSO4, and effectively reduced particle sizes leading to single-micron products. Besides feeding conditions, in the present work, the influence of PEI dosage on crystal size distributions (CSDs) is investigated. The controlled double-jet feeding using a polyelectrolyte additive such as PEI will be a powerful methodology to obtain agglomeration-free uniform micro-powders as a final solid product.

    KW - Double-jet crystallization

    KW - Mono-dispersed particles

    KW - Polyelectrolyte additive

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