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详细探讨了镍铝合金在氢氧化钠水溶液中的沥滤机理,用 EDTA 滴定的方法测得其动力学数据,拟合得到动力学方程式:log[x/(1-x)]=α·log(β·t),求得几种条件下的参数α、β值及沥滤过程的活化能 E_(n)=71.17 kJ·mol~(-1),同时研究了合金颗粒尺寸和氢氧化钠浓度对沥滤速率的影响。
The leaching mechanism of nickel-aluminum alloy in aqueous sodium hydroxide solution was discussed in detail. The kinetic data were obtained by titration with EDTA. The kinetic equation was fitted by the following equation: log [x / (1-x)] = (β · t), the α and β values and the activation energy E n (n = 71.17 kJ · mol -1) of the leaching process were obtained under several conditions. The effects of the particle size of the alloy and sodium hydroxide Effect of concentration on leaching rate.