文章叙述了硫化的、混合的和氧化的铅—锌矿石浮选流程。在有代表性的所有三种矿石类型试样的试验中,铅、锌和黄铁矿精矿量和金属回收率(铅为66.13～82.31％,锌为58.71～75.28％)是令人满意的。由硫化的、混合的和氧化矿试样中得到的黄铁矿精矿,分别含硫44％、41％和39％。用表征硫化矿的试样[含铅(呈氧化矿物形式)12％和锌8％]的试验,得到与用第1种试样相近的结果。黄铁矿精矿含硫34.2％,这种试样必 The article describes sulfurized, mixed and oxidized lead-zinc ore flotation processes. Concentrations of lead, zinc and pyrite concentrates and metal recovery (66.13-82.31% for lead and 58.71-75.28% for zinc) were satisfactory in all representative samples of all three ore types . Pyrite concentrates obtained from sulfided, mixed and oxidized ore samples contained 44%, 41% and 39% sulfur, respectively. The results of a test similar to that of the first sample were obtained from the test for the samples characterized by sulphide [lead (in the form of oxide minerals) 12% and zinc 8%]. Pyrite concentrate containing 34.2% sulfur, this kind of sample must