The impact of an unqualified saltwater accident on the operation of electrolytic cells
The impact of an unqualified saltwater accident on the operation of electrolytic cells was analyzed.The accident was caused by an improper operation which resulted in excessive acid addition and a decrease in pH value to 0,further affected the metal ion removal function of the chelating resin tower and caused serious exceedance of metal ions such as Ca2+and Mg2+in the secondary brine.In the accident,the damage to ion membrane may lead to a decrease in current efficiency,an increase in voltage,and even premature failure.After the accident,the salt content in the alkali of the electrolytic cell increased significantly,the purity of chlorine gas decreased,the oxygen content in chlorine gas increased,chlorate and hypochlorite content increased,and the current efficiency of the electrolytic cell decreased.The damage to the ion-exchange membrane was the main loss in this accident.It is recommended to strengthen on-site management and employee training,strictly control the quality of saltwater,and extend the service life of ion-exchange membranes,to ensure the normal operation of electrolytic cells.
万方数据
维普
