Purification of metallurgical-grade silicon via acid leaching, calcination and quenching before boron complexation

Autor:	Xu Lang, Yan-Hui Sun, Chang-Juan Guo, Qihui Ye, Qiwen Luo, Chun-Mei Yang, Hongyu Chen, Finlow David
Rok vydání:	2013
Předmět:	Quenching Silicon Hydrometallurgy Chemistry Inorganic chemistry Metallurgy Metals and Alloys chemistry.chemical_element Microstructure Industrial and Manufacturing Engineering law.invention chemistry.chemical_compound Hydrofluoric acid law Materials Chemistry Calcination Bond energy Boron
Zdroj:	Hydrometallurgy. 139:64-72
ISSN:	0304-386X
DOI:	10.1016/j.hydromet.2013.07.002
Popis:	The effects of hydrofluoric acid concentration ([HF]), silicon particle size, calcination and quenching (CQ these results were obtained by acid leaching using 10% ( w / v ) glycerin at 50 °C for 80 min. The results agreed with the HyperChem software calculation data to indicate that the boron complexation with glycerin had the highest bond energy and the least steric hindrance of the six ligands, which implied that the glycerine-boron complex was the most stable. The microstructure of the silicon before and after C&Q and acid leaching indicated that many tunnels formed in the silicon, which aided the acid leaching process to a large degree.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f61b4111310c47d93603e283037dd38a https://doi.org/10.1016/j.hydromet.2013.07.002 Zobrazit plný text záznamu Full Text from ScienceDirect