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。
Metallic nickel and ceramic alumina, magnesia fibres were prepared respectively by the organic-gel method from the raw materials of citric or lactic acid and the their metal salts.
以柠檬酸、乳酸及金属盐为原料，采用有机凝胶法制备了微细金属镍纤维、氧化镁纤维和氧化铝纤维。
Metallic nickel and ceramic alumina, magnesia fibres were prepared respectively by the organic-gel method from the raw materials of citric or lactic acid and the their metal salts.
以柠檬酸、乳酸及金属盐为原料，采用有机凝胶法制备了微细金属镍纤维、氧化镁纤维和氧化铝纤维。
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