SCO is a selective dolomite deperessant in the flotation system of collophane and dolomite. However,experi-ments confirmed that reverse phenomenon would occur for some phosphatic mines. In order to explain the SCO dep...SCO is a selective dolomite deperessant in the flotation system of collophane and dolomite. However,experi-ments confirmed that reverse phenomenon would occur for some phosphatic mines. In order to explain the SCO depress-ing mechanism i this paper describes studying results on the ef-fect of dissolved ions on SCO depressing property using ul-traviolet absorption spectra. It is found that the effect of dis-solved ions, especially Mg2+ ?on the SCO adsorption property is strong. When Mg2+ concentration is low,dolomite adsorbs SCO and is depressed. When Mgz+ concentration is more than 90g/t in pulp.SCO adsorption capacity on colophane is obvi-ously greater than that on dolomite,which results in the de-pression of collophane. The adsorption results are consistent with flotation results.展开更多
According to the new structure of the jet flotation column, a system which can measure and control the parameters of the column flotation system is successfully designed.
Both the potential of electric field and the velocity potential of ideal fluid can be expressed with Laplace equation, thus the velocity field of ideal fluid can be simulated by electric field. According to this princ...Both the potential of electric field and the velocity potential of ideal fluid can be expressed with Laplace equation, thus the velocity field of ideal fluid can be simulated by electric field. According to this principle, one simple lab-device is developed. This method can be used to analyze and study the flotation column structure, operation condition such as feed rate, recirculation rate and tailing discharged rate etc. Because this method takes the wall effects of column into consideration in the simulation, it is significance for the scaling-up of flotation column.展开更多
文摘SCO is a selective dolomite deperessant in the flotation system of collophane and dolomite. However,experi-ments confirmed that reverse phenomenon would occur for some phosphatic mines. In order to explain the SCO depress-ing mechanism i this paper describes studying results on the ef-fect of dissolved ions on SCO depressing property using ul-traviolet absorption spectra. It is found that the effect of dis-solved ions, especially Mg2+ ?on the SCO adsorption property is strong. When Mg2+ concentration is low,dolomite adsorbs SCO and is depressed. When Mgz+ concentration is more than 90g/t in pulp.SCO adsorption capacity on colophane is obvi-ously greater than that on dolomite,which results in the de-pression of collophane. The adsorption results are consistent with flotation results.
文摘According to the new structure of the jet flotation column, a system which can measure and control the parameters of the column flotation system is successfully designed.
文摘Both the potential of electric field and the velocity potential of ideal fluid can be expressed with Laplace equation, thus the velocity field of ideal fluid can be simulated by electric field. According to this principle, one simple lab-device is developed. This method can be used to analyze and study the flotation column structure, operation condition such as feed rate, recirculation rate and tailing discharged rate etc. Because this method takes the wall effects of column into consideration in the simulation, it is significance for the scaling-up of flotation column.
