论文部分内容阅读
The expanded industrial experiments were conducted with practical industfial liquor to separate free alkali from sodium tungstate solution by electrolysis with canon-exchange membrane. Experimental results show that on the condition that the temperature is 50-55℃ and the current density is 1000 A/m2, the single electrolysis cell is operated stably and 80% free-alkali in mass fraction is separated from the anode feed liquor of sodium tungstate, with electric ef- ficiency up to more than 88% and the unit energy consumption E lower than 1900 kWh/t; while three electfolysis cells in series are operated, under the condition that the temperature is 60-65 ℃ and the current density is 1000 A/m2, the elec- tric efficiency can reach higher than 88% and the unit energy consumption E can be lower than 2250 kWh/t.
The expanded industrial experiments were conducted with practical industfic liquor to separate free alkali from sodium tungstate solution by electrolysis with canon-exchange membrane. Experimental results show that on the condition that the temperature is 50-55 ° C and the current density is 1000 A / m2 , the single electrolysis cell is operated stably and 80% free-alkali in mass fraction is separated from the anode feed liquor of sodium tungstate, with electric ef-ficiency up to more than 88% and the unit energy consumption E lower than 1900 kWh / t; while three electfolysis cells in series are operated, under the condition that the temperature is 60-65 ° C and the current density is 1000 A / m2, the elec- tric efficiency can reach higher than 88% and the unit energy consumption E can be lower than 2250 kWh / t.