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Title: Separation of Mo from Chloride Leach Liquors of Petroleum Refining Catalysts by Ion Exchange
Authors: Nguyễn, Thị Hồng
Sohn, Seong Ho
Lee, Man Seung
Keywords: Molybdenum
Ion exchange
Issue Date: 2013
Series/Report no.: Materials Transactions;54 .- p.1750-1754
Abstract: Separation of molybdenum from the synthetic chloride leach liquors of spent hydrodesulphurization catalysts was studied by employing cationic (Diphonix) and anionic resins (AG1-x8). The composition of the solution was Mo 394 ppm, Co 119 ppm and Al 1782 ppm. In the HCl concentration range from 1 to 6 kmol/m3, the loading of Co and Al was negligible. As the concentration of HCl increased, the loading percentage of Mo by AG1-x8 increased, while that by Diphonix decreased. The Mo in the loaded AG1-x8 was successfully eluted by using NaOH solution. In terms of the possibility of producing Mo compound from the eluant, AG1-x8 was found to be better than Diphonix. The loading capacity of AG1-x8 for molybdenum was determined. Column experiments verified that it was possible to separate Mo from Co and Al by ion exchange with AG1-x8.
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