Effects of reactor type and mass transfer on the morphology of CuS and ZnS crystals

M.Y.M. Al Tarazi, Albertus B.M. Heesink, Geert Versteeg

    Research output: Contribution to journalArticleAcademicpeer-review

    5 Citations (Scopus)

    Abstract

    For the precipitation of CuS and ZnS, the effects of the reactor/precipitator type, mass transfer and process conditions on crystal morphology were studied. Either H2S gas or a S2- solution were applied. Three different types of reactors have been tested, namely a laminar jet, a bubble column and an MSMPR reactor. The choice of reactor type as well as mass transfer and metal concentration all have a considerable influence on the morphology of the produced crystals. A well mixed bubble column with H2S containing gas as feed yields the coarsest crystals. Use is then made of the surface active properties of CuS-particles, which induce agglomeration at the gas-liquid interface, where as the low metal concentrations inside the reactor also contribute to the formation of coarser particles (especially for ZnS).
    Original languageEnglish
    Pages (from-to)735-740
    Number of pages6
    JournalCrystal research and technology
    Volume40
    Issue number8
    DOIs
    Publication statusPublished - 2005

    Keywords

    • Laminar jet
    • Crystal morphology
    • MSMPR
    • Bubble column
    • Zinc sulfide
    • Copper sulfide

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