Hydrometallurgy: Extraction of metal from ore by dissolving the metal (as one of its salts) and then recovering it from the solution.
湿法冶金学：将矿石中的金属溶解(例如用它的一种盐)，再从溶液中回收金属的提取方法。
The general situation of recycling and reusing for nickel metal hydride batteries and its fire metallurgy and hydrometallurgy technical processes are summarized.
介绍了国内外废旧电池的回收概况以及火法和湿法回收金属氢化物-镍电池的工艺流程。
Widely used in various industries such as petrochemical engineering, hydrometallurgy, acid-base production, synthetic fiber and papermaking, it can save a large amount of metal materials.
广泛应用于石油化工、湿法冶金、酸碱生产、合成纤维、造纸等工业部门，可节省大量的金属材料。
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