The invention provides an organic luminescent material, i. e. a terphenyl bridged-bis-benzimidazole quaternary ammonium compound, a preparation method and application thereof.

本发明提供一种三联苯桥联双苯并咪唑季铵盐类化合物有机发光材料、制备方法及应用。

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The authors introduce its application in many fields and its current preparation techniques, e. g. taking montmorillonite as raw material to prepare amorphous silica by NaOH liquor lixiviation;

本文系统地描述了白炭黑在工业中的应用，并介绍了现有的白炭黑制备方法，如以蒙脱石为原料的碱浸法、以四氯化硅为原料的气相法、以水玻璃为原料的沉淀法等。

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