P removal from Si by Si-Ca-Al alloying-leaching refining: Effect of Al and the CaAl2Si2 phase
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چکیده
منابع مشابه
Removal of B from Si by Hf addition during Al–Si solvent refining process
A small amount of Hf was employed as a new additive to improve B removal in the electromagnetic solidification refinement of Si with an Al-Si melt, because Hf has a very strong affinity for B. The segregation ratio of Hf between the solid Si and Al-Si melt was estimated to range from 4.9 × 10-6 to 8.8 × 10-7 for Al concentrations of 0 to 64 at.%, respectively. The activity coefficient of Hf in ...
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ژورنال
عنوان ژورنال: Separation and Purification Technology
سال: 2021
ISSN: 1383-5866
DOI: 10.1016/j.seppur.2021.118675