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Ca+、Fe3+沉淀分离HPO2-3和H2PO2-的研究

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Indexed by:期刊论文

Date of Publication:2010-08-15

Journal:广州化工

Volume:38

Issue:8

Page Number:109-111

ISSN No.:1001-9677

Key Words:沉淀;亚磷酸根;次磷酸根;分离

Abstract:采用Ca2+和Fe3+作为沉淀剂分离HPO2-3和H2PO2-,研究了Ca2+和Fe3+的加入量、反应温度和陈化时间对分离效果的影响.结果表明,Ca2+作为沉淀剂时,[Ca2+]/[HO2-3]=0.94,处理温度50℃,陈化时间5h条件下HPO2-3去除率达到93.1%,而H2PO2-的损失率为1.06%.Fe3+作为沉淀剂时,[Fe3+]/[HPO2-3]=1.02,室温下处理,陈化时间6h条件下HPO2-3去除率达到75.4%,而H2PO-2的损失率为10.6%.

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