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利用富里酸、胡敏酸和盐酸与天然矿物——长石、蒙脱石和云母在常温常压下进行反应,探讨矿物溶解及高岭石形成机理。实验表明富里酸对这些矿物具有较大的溶解能力,其原因是由于形成了具有较大溶解度和活动性的有机硅和有机铝复合体。在中性—碱性条件下有利于有机硅复合体的形成,酸性条件下有利于有机铝复合体的形成。在富里酸作用下,蒙脱石和云母分别在4个月和8个月有少量转化成高岭石,说明层状硅酸盐矿物比架状硅酸盐矿物更易于向高岭石转化。有机硅和六次配位的有机铝复合体在高岭石形成过程中具有重要作用。
The use of fulvic acid, humic acid and hydrochloric acid and natural minerals - feldspar, montmorillonite and mica reaction at room temperature and pressure to explore the dissolution of minerals and kaolinite formation mechanism. Experiments show that fulvic acid has a greater ability to dissolve these minerals due to the formation of a more soluble and active organosilicon and organo-aluminum complexes. Under neutral - alkaline conditions conducive to the formation of silicone composites, acidic conditions conducive to the formation of organic aluminum complexes. Under the action of fulvic acid, a small amount of montmorillonite and mica were converted to kaolinite at 4 months and 8 months, respectively, indicating that layered silicate minerals are more likely to transform into kaolinite than the framework silicate minerals. Organosilicon and six-coordinated organo-aluminum complexes play an important role in the formation of kaolinite.