中文摘要：

研究了改性反应工艺条件对草酸法改性锰矿吸附Cu^2＋性能的影响，得出优化的改性反应工艺条件为：草酸用量2．0mmol／g（对矿粉），高锰酸钾用量0．5mmol／g（对矿粉），介质中硫酸浓度1moL／L，室温下反应60min。在25℃、吸附体系pH=5．0、吸附剂浓度为0．2g／L的条件下，用优化条件下制得的草酸法改性锰矿与天然锰矿进行Cu^2＋的吸附对比试验，饱和吸附量分别为51．0mg／g和7．2mg／g，表明草酸法改性使天然锰矿对Cu^2＋的吸附能力提高了约7倍。

英文摘要：

The effect of the reaction conditions for modifying manganese ore by oxalic acid method on the latter＇s Cu^2＋ adsorptive capacity is studied. It is concluded that the optimal reaction conditions for the modification are ： oxalic acid dosage of 2.0 mmol/g （ powder ore）, dosage of potassium permanganate 0.5 mmol/g （ powder ore）, sulfuric acid concentration in the medium of 1 moL/L and reaction time of 60 min at ambient temperature. The saturated adsorption amounts are 51.0 mg/g and 7.2 mg/g respectively for the manganese ore modified by the oxalic acid at the above optimal conditions and for the natural manganese ore, an about seven-fold increase in Cu^2＋ adsorptive capacity of the modified manganese ore.