The invention relates to a method for recovering lead from lead plaster of waste lead-acid battery, belonging to the
recovery treatment technology of the waste lead-acid battery. The method comprises the following steps: carrying out crushing, sorting and rinsing on the waste lead-acid battery by using a special
crusher, respectively and independently recovering and utilizing lead or
lead alloy grid plate and organic matters, mixing
electrolyte, washing liquor and lead paste, placing the mixture into
muffle furnace for
roasting; carrying out chloridizing leaching on the roasted sand in
leachate consisting of
sodium chloride,
calcium chloride and
hydrochloric acid; after chloridizing leaching, carrying out press-filtering, carrying out concentrated treatment on the filter residue, carrying out sharp
quenching on the filter liquor to
room temperature and standing; after the
precipitation is finished, carrying out
filtration, returning chloridizing leaching to the filtrate, and obtaining filter residue which is the final product, namely
lead chloride. The method is characterized by simple and easy technique, more common and cheaper materials used and equipment, cycle use for chloridizing leaching solution and having no
pollution.