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| In addition to the traditional uses as ornamental or decorative articles, gold is widely used in various industries as a wiring material of electronic circuits in electronic industries or as a catalytically active ingredient in certain catalysts in chemical industries so that the demand for gold is rapidly increasing year by year. In view of the geologically very limited occurrence of gold as a natural resorce, accordingly, it is or will be an indispensable technology to recover the gold value from various industrial waste materials. The present technology provides a novel method for the recovery of gold value from an aqueous solution containing gold in the form of complex anions in an extremely low concentration, for example, in the level of ppb by weight by the adsorption of the complex gold anions on to a specific solid ion exchange adsorbent followed by desorption of the adsorbed gold anions.scope inventive recovery gold value aqueous solution complex anions specific solid exchanger quaternary ammonium salt porous carrier exhibits adsorptive power even concentration extremely ppb level preferably acidic hydrochloric adsorption neutral weakly alkaline chlorine Cl-in relatively |
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Interested? This is an abstract of a technology that is available for sale or license. yet2.com can introduce you confidentially to the owner of this technology.
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