一、前言甲苄胂酸是中南矿冶学院和株洲选矿药剂厂共同研制的新的黑钨和锡石细泥捕收剂。曾用它浮选了浒坑黑钨细泥和大厂长坡锡石细泥。当黑钨细泥原矿品位WO_30.33％时,可得含WO_239.5％的钨精矿,回收率84.72％;当锡石细泥原矿含锡0.76％时,可得含锡39.5—40.57％的锡精矿,回收率93.76—97.65％。今年7—8月,又先后 First, the introduction of arsenic acid is the South China Institute of Mining and Metallurgy and Zhuzhou beneficiation pharmaceutical co-developed a new tungsten and cassiter fine clay collector. It used to flotation of Hukeng black tungsten fine mud and large Changpo cassiterite. When the raw material of black tungsten fine mud ore grade WO_30.33%, available WO239.5% of the tungsten concentrate, the recovery rate of 84.72%; when cassiterite fine ore containing 0.76% tin, available tin 39.5-40.57% Of tin concentrate, the recovery rate of 93.76-97.65%. July-August this year, successively