【摘要】 在磷硫混酸浸提的磷矿脱镁过程中,加入不同类型的表面活性,考察其对脱镁率及磷损失率的影响。结果表明,阴离子表面活性剂十二烷基苯磺酸钠和十二烷基磺酸钠的加入不利脱镁反应的进行;阳离子表面活性剂十六烷基三甲基溴化铵和十六烷基三甲基氯化铵,在促进脱镁反应的同时增加了磷损失;非离子表面活性剂聚乙二醇有利于抑制脱镁过程中的磷损失,并有效地促进了脱镁反应的进行。更多还原

【Abstract】 The effect of surfactants on removal of magnesium impurities from phosphate ore with a mixture of phosphoric and sulfuric acid was studied.The results showed that the removal of magnesium impurities was inhibited by anionic surfactant(SDBS and SDS);the removal of magnesium impurities was promoted and the loss of P2O5 was increased by cationic surfactant(CTAC and CTAB);the removal of magnesium impurities was promoted and the loss of P2O5 was decreased by nonionic surfactant(PEG).更多还原