Fusel oil is instead of pine camphor oil in frothers 2 # oil in concentrator 1, as a result, frothing is uncontrollable and the grade of concentrate falls evidently.

• 对选厂所用选矿药剂进行分析,结果两选厂所用捕收剂均无质量问题,事故系由起泡剂质量所致。