Separation of molybdenum and vanadium from oxalate leached solution of spent residue hydrodesulfurization (RHDS) catalyst by liquid-liquid extraction using amine extractant

被引：44

作者：

Kim, Hong-In ^{[1
]}

Lee, Ki-Woong ^{[1
]}

Mishra, Debaraj ^{[1
]}

Yi, Kang-Myong ^{[1
]}

Hong, Jeong-Hee ^{[2
]}

Jun, Min-Kee ^{[3
]}

Park, Hea-Kyung ^{[3
]}

机构：

[1] Sungeel Hitech Ltd, Res & Dev Ctr, Inchon 404250, South Korea

[2] KC Cottrell Co Ltd, Res & Dev Ctr, Seoul 121898, South Korea

[3] Hanseo Univ, Res Inst Catalyst Technol, Seosan 356706, Chungnam, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2015年 / 21卷

关键词：

Vanadium; Molybdenum; Oxalic acid; Solvent extraction; Stripping; SOLVENT-EXTRACTION; ION-EXCHANGE; RECOVERY; VI;

D O I：

10.1016/j.jiec.2014.05.043

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Alamine-336, diluted with kerosene and iso-decanol, was used for separation of vanadium (IV) and molybdenum (VI) from leached solution generated by oxalic acid washing of spent residue hydrodesulfurization (RHDS) catalyst. The variation of aqueous pH represented that there was complete extraction of both vanadium (IV) and molybdenum (VI) at equilibrium pH 3.8. Both metals were extracted by two stages counter current process using 10% Alamine-336 along with 5% iso-decanol at organic to aqueous phase ratio 1:2. The metal loaded organic was then used for selective stripping of each metal. About 99% of vanadium (IV) and molybdenum (VI) was selectively stripped with 1.5 M sulfuric acid and 2 M ammonia solution, respectively. Both stripped solutions can be further processed for the preparation of respective oxide components of vanadium and molybdenum. (C) 2014 Published by Elsevier B.V. on behalf of The Korean Society of Industrial and Engineering Chemistry.

引用

页码：1265 / 1269

页数：5

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