氢氧化铬沉淀气浮的动力学研究

Study on the Kinetics of Chromium Hydoxide Precipitate Flotation

以十二烷基硫酸钠作气浮剂,采用布气板分散气体气浮装置,对氢氧化铬沉淀气浮的动力学进行了研究.结果表明,氢氧化铬沉淀气浮的动力学方程可用一级动力学方程-(dc)/(dt)=kc来描述,其中速率常数k与pH值、气体流量、温度等因素有关.

An experimental Kinetic study had been completed on precipitate flotation of chromium hydroxide by diffused-air flotation with the surfatant, sodium lauryl sulfate. The results indicated that the course of precipitate flotation could bedescribed by an equation analogous to a first-order rate equation -dc/dt = KC. Therate constant K is dependent of the pH value, the gas flow rate and temperature possesse a maximum at a definite pH value.