ABSTRACT Polystyrene beads were coated with activated carbon under hydrothermal conditions above the glass transition temperature of polystyrene. By precisely controlling the temperature between 140 and 145 °C under vigorous mixing conditions in the presence of an excess of activated carbon, the surface of polystyrene beads were made sufficiently tacky so that finely sized activated carbon particles adhered to their surfaces, producing polystyrene/activated carbon, PS-AC, beads. The usefulness of these beads, as an alternative to pure activated carbon particles, for adsorption of gold cyanide ions under industrial conditions, was also demonstrated experimentally.

中文翻译：

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水热条件下活性炭包覆聚苯乙烯树脂的制备及其在氰化金吸附中的应用

摘要 在高于聚苯乙烯玻璃化转变温度的水热条件下，聚苯乙烯珠粒被活性炭包覆。通过在存在过量活性炭的剧烈混合条件下精确控制温度在 140 至 145 °C 之间，聚苯乙烯珠的表面变得足够粘，从而使细粒活性炭颗粒粘附在其表面上，从而产生聚苯乙烯/活化碳，PS-AC，珠子。这些珠子作为纯活性炭颗粒的替代品，在工业条件下吸附金氰化物离子的有用性也得到了实验证明。