• iranian bentonite beneficiation for nanoclay application

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1389/07/20
    • تاریخ انتشار در تی پی بین: 1389/07/20
    • تعداد بازدید: 850
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     purification of iranian bentonite samples from reshm mine using chemical agent (sodium hexametaphosphate) for nanoclay application was investigated. mineralogical studies indicated that na-smectite was the main clay mineral and cristobalite and quartz were the major impurities. in addition, sample contains small amounts of feldspar, gypsum, dolomite, calcite and zeolite as minor impurities. the samples were processed by crushing, attrition scrubbing followed by sedimentation treatment with sodium hexametaphosphate. after purification treatment, samples intercalated with octadecylamine and evaluated by xrd analysis. the results showed that application of such simple flowsheet effectively removed the majority of the associated gangues and produced high grade clay that had less than about 5% by weight non-smectite impurities. after beneficiation, the particle size distribution for final product is appropriate for nanoclay production and d80 for purified montmorillonite particle was 2μ.

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