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云南省东川矿务局中心试验所选矿室药剂组发现乙二胺磷酸盐是氧化铜矿石的一种优良的浮选调整剂。根据实验室试验和工业试验结果,它可以显著提高铜矿浮选回收率,降低黄药和硫化钠的用量(详见本刊1975年第9期和1977年第2期)。试验人员根据浮选现象和试验结果,曾推测该药剂具有“选择性抑制矿泥”和“溶解清洗矿物表面”的作用,似未通过进一步的实验予以证实。
Dongchuan Mining Bureau, Yunnan Province, the center of the laboratory selected agent group found that ethylenediamine phosphate copper oxide ore is an excellent flotation regulator. According to laboratory tests and industrial test results, it can significantly improve copper flotation recovery and reduce the dosage of xanthate and sodium sulfide (for details see Issue 9, 1975 and Issue 2, 1977). Based on the flotation phenomena and the test results, the experimenter had speculated that the agent had the effect of “selectively inhibiting the sludge” and “dissolving and cleaning the surface of the mineral”, which did not confirm the further experiments.