【摘 要】
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Bentonites consisting mainly of montmorillonite are widely utilized in various applications. However, natural bentonites contain many kinds of impurities such a
【机 构】
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School of Material Sciences and Technology,China University of Geosciences,
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Bentonites consisting mainly of montmorillonite are widely utilized in various applications. However, natural bentonites contain many kinds of impurities such as quartz, cristobalite, feldspar, zeolite, calcite etc., which can decrease the performance of bentonite. Furthermore, quartz and cristobalite are carcinogenic. Therefore purification of bentonite is critical to its applications. Among the impurities in bentonite, cristobalite is the most difficult one to get rid of because of its tiny particle size and aggregation state.
Bentonites consisting mainly of montmorillonite are widely utilized in various applications. However, natural bentonites contain many kinds of impurities such as quartz, cristobalite, feldspar, zeolite, calcite etc. which can decrease the performance of bentonite. Furthermore, quartz and cristobalite are carcinogenic Thus the purification of bentonite is critical to its applications. Among the impurities in bentonite, cristobalite is the most difficult one to get rid of because of its tiny particle size and aggregation state.
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