介绍了国内双极性膜的生产和应用情况。国内生产的双极性膜具有优良的电化学性能，在0.5M硫酸钠溶液中，25°C时，10—100毫安 /厘米2电流密度下，跨膜电压降为0.9-1.8V之间。价格也远比国外BP-Ⅰ型双极膜便宜。同时，介绍了国内双极性膜电渗析装置可以从不同盐类直接分离酸和碱，分离每吨酸电耗在1500—2500kwh范围。因此国产双极性膜可以完全满足国内市场的需要。

This paper introduced production and application of domestic bipolar membrane made in China . Our bipolar membrane has an excellent electro-chemical properties . In range of current density , 10—100 mA∕cm2,the membrane has a potential drop of 0.9—1.8 in a 0.5 M Na2SO4 solution at 25°C . And our bipolar membrane cost is also far cheaper than type BP—1 bipolar membrane imported from abroad . At the same timeAnd morover , This paper introduced our bipolar membrane eletrodialysis installationplant . It can directly separate acids and basesfrom their different salts . For separating per ton acid , its electric energy consumption is in the range of 1500—2500kwh .So , our bipolar membrane can completely meet our market needs .

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