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Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Bài báo - Tạp chí
52 (2014) Trang: 799-803
Tạp chí: Korean Journal Of Metals And Materials

After separation of valuable metals from the leaching solution of ores or secondary resources, the recovery of inorganic acids from the raffinate is important. Therefore, the possibility of recovering inorganic acids, such as HCl, H2SO4 and HNO3, by extraction with Tris 2-ethylhexyl amine (TEHA) was investigated. The solvent extraction reaction of acid by TEHA was identified by applying a slope analysis method to the extraction data. The extraction efficiency of the acids by TEHA was in the order HNO3 > HCl > H2SO4, which corresponds well to the variation in the electric charge densities of the anions of each acid. The loading capacity of TEHA for HNO3, HCl and H2SO4 was determined and the extraction behavior of the acid seemed to be affected by the acid concentration in the organic phase. It was possible to strip all the HCl and H2SO4 by using distilled water at room temperature, while the stripping percentage of HNO3 at the same conditions was very low.

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Tạp chí: Journal of the Korean Institute of Resources Recycling
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39 (2018) Trang: 1-6
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Tạp chí: Mineral Processing and Extractive Metallurgy Review
31 (2015) Trang: 118-123
Tạp chí: Journal of Industrial and Engineering Chemistry
53 (2014) Trang: 8608-8614
Tạp chí: Industrial & Engineering Chemistry Research
 

Crossref DOI of CTUJoS


BC thường niên 2018


Con số ấn tượng (VN | EN)


Bản tin ĐHCT


TCKH tiếng Việt


TCKH tiếng Anh

 
 
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