苄基胂酸是我国近几年研制的一种新型捕收剂。1982年,株洲选矿药剂厂提供两吨苄基胂酸(含量≥80％,无机砷≤0.9％)给澳大利亚雷尼松(Renison)选厂进行小型和工业浮选试验,分别获得14.2％、17％的锡精矿品位,92.5％、88％的回收率。澳大利亚雷尼松选厂处理锡石—硫化矿矿石。原矿含锡1.3％,矿泥含锡0.7—0.1％;硫化物含量高达40～70％,以磁黄铁矿为主,有少量砷黄铁 Benzoic acid is a new type of collector developed in recent years. In 1982, Zhuzhou beneficiation pharmaceutical factory provided two tons of benzenesulfonic acid (≥ 80%, inorganic arsenic ≤ 0.9%) for small and industrial flotation tests at the Renison plant in Australia with 14.2%, 17 % Of the grade of tin concentrate, 92.5%, 88% recovery. The Renon plant in Australia handles cassiterite-sulphide ores. Raw ore contains 1.3% of tin, the ore contains 0.7-0.1% of tin; sulfide content of up to 40 to 70%, mainly pyrrhotite, a small amount of arsenic yellow iron