Study on Improvement of Surfactivity Oxyparaffin Soap at Low Temperature

As an important collecting agent of oxidized ore,the further application of oxyparaffin soap was limited because of low dissolvability and intolerance of low temperature.Through surface tension and conductivity measurement,the CMC of oxyparaffin soap is 10 g/L and 100 mg/L for Tween-80.The composite surfactant is composed of oxyparaffin soap and Tween-80.The results show that perfect synergy is present in them.At 11～15 ℃,the temperature has few influence on the surface tension of solution.