The method using soluble calcium salt for regeneration of waste electroless nickel plating liquor, in which the lactic acid used as complexing agent and hypophosphite used as redcing agent is studied.

• 研究了采用可溶性钙盐对以乳酸为络合剂,次磷酸盐为还原剂的失效化学镀镍溶液的再生。