湿法磷酸尾洗废硅胶制备纳米白炭黑的工艺研究

Sulphur Phosphorus & Bulk Materials Handling Related Engineering(2015)

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Abstract
研究了湿法磷酸尾气洗涤液中废硅胶直接制备纳米白炭黑的工艺,结果表明,尾洗废硅胶依次经洗涤、溶解及再沉淀工艺可制得符合行业标准的纳米白炭黑,其中,溶解及再沉淀工艺条件为:溶解温度60℃,溶解剂氟化铵质量分数15%,氟化铵过量10%,再沉淀pH值8,陈化时间40 min。
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