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为了满足国家对镍的需要,第三冶炼厂1965年初就着手进行了从镍铬合金残料中再生电解镍的工作,从5月份起,已正式生产出较高纯度的电解镍。再生过程包括火冶和水冶两个部分。火冶部分以镍铬合金残料(大多数是鉋花状)为原料,在电弧炉经过初步净化分离铬、铅、锌等杂质,使镍含量由原来的70％左右富集到90％以上,再浇铸成适应电解所需的阳极板。水冶部分是将阳极板在盐酸溶液中电溶成氯化物溶液,并经过中和除铬,离子交换除锌,通氯气氧化及加纯碱中和除铁、钴、铜、铅等净化作业,最后用蒸馏盐酸调节pH值,加热后送入隔膜电
In order to meet the national demand for nickel, the Third Smelter started the work of regenerating electrolytic nickel from nichrome remnants in early 1965. Since May, electrolytic nickel has been formally produced with higher purity. Regeneration process includes the two parts of fire and water metallurgy. Some parts of the fire and smelting nickel-chromium alloy residue (most shavings) as raw material in the electric arc furnace after the initial purification of chromium, lead, zinc and other impurities, the nickel content from the original 70% enrichment to more than 90% Cast into anode plates for electrolysis. Water and metallurgy part is the anode plate in hydrochloric acid solution into a chloride solution, and after the addition of chromium, ion exchange zinc, chlorine gas and add soda ash and iron, cobalt, copper, lead and other clean-up operations, Finally, adjust the pH value with distilled hydrochloric acid, after heating into the diaphragm