Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/2358
Title: Recovery of HCL from Chloride Leach Solution of Spent HDS Catalyst by Solvent Extraction
Authors: Banda, Raju
Nguyễn, Thị Hồng
Lee, Man Seung
Keywords: HCl
Extraction
Stripping
Recovery
TEHA
Issue Date: 2013
Series/Report no.: Chemical and Process Engineering;34 .- p.153-163
Abstract: In the present work, amine based extractant and its mixture with cationic and solvating extractants were tested for the extraction of HCl from chloride solution containing Al(III). The chloride feed solution resulted from the leaching of spent HDS (hydro-desulfurization) catalysts. For this purpose, amine extractants, such as TOA (trioctyl amine), Alamine 336 (a mixture of tri-octyl/decyl amine), Alamine 308 (tri-isooctyl amine), and TEHA (tri 2-ethylhexyl amine) were used and the extraction and stripping behavior of HCl was compared. The extracted HCl was easily stripped from loaded TEHA phase, when compared with the other tested tertiary amine system. Solvent extraction reaction of HCl by TEHA was determined from the extraction data. Unlike TOA and Alamine 336, adding cationic extractant to TEHA had negligible effect on the extraction and stripping of HCl. In our experimental ranges, no Al was extracted by amines and pure HCl was recovered. MaCabe-Thiele diagrams for the extraction and stripping of HCl by TEHA were constructed.
URI: http://172.18.63.105/jspui/handle/123456789/2358
Appears in Collections:Tạp chí quốc tế

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