镍电解液中除微量铅、锌是镍精炼过程的一个重要步骤。

Removing trace lead and zinc from nickel electrolyte is an important step in the process of nickel refinery.

youdao

结果表明，在受试样品中以镍精炼烟尘（取自火法处理硫化镍锍的镍精炼厂）的细胞毒性和吞噬活性为最强。

The results showed that both cytotoxicity of and phagocytosis activity to nickel refinery dust (from pyrometallurgical sulfide nickel matte refinery) were the strongest among the tested samples.

youdao

镍在精炼过程中不产生有害气体和粉尘，没有废渣。

There are no hazardous gases, dusts, residues and slags produced during nickel refining.

youdao