Abstract:The process conditions of removing sulfuric acid from high acid nickel sulfate solution by anion exchange adsorption and improving the concentration ratio of nickel sulfate solution were studied. The effects of liquid inlet rate, eluent type and eluent volume ratio on acid salt separation were investigated. The optimum process conditions were as follows: the feed rate was 5BV/h, the type of eluent was production water, and the volume ratio of eluent to feed was 1∶1. The experimental results under the optimum process conditions show that the acid removal rate of nickel sulfate solution is more than 80%, and the acidity of sulfuric acid in deacidification salt solution is less than 70g/L.