The zinc in the separation solution and the leachresidue is determined by EDTA titrimetry and atomic absorption spectrometry.
分离后溶液和残渣中的锌采用常规的EDTA容量法或原子吸收光谱法测定。
2
It was found that ammonium sulfite can be used as a digesting agent which can extract sulfur efficiently from the leachresidue.
采用硫化铵溶液为浸提剂能有效地提取矿渣中的硫磺。
3
The pilot-scale test results showed that the use of different leaching processes for different raw material can result in grade<0.25% in the secondary In leachresidue…