Research Progress on Adsorption Property of Two Nitrogen Heterocyclic Functional Compounds of Imidazole and Pyridine on the Rare Metal Rhenium
Rhenium is a fairly rare dispersed metal,which is difficult to exist independently in nature and has a large demand.Thus,it is urgent to develop efficient rhenium separation and adsorption materials.The key to develop promising rhenium ad-sorption materials is the construction of specific adsorption sites.Nitrogen heterocyclic compounds are a class of compounds that can be used as metal ligands and can effectively adsorb rhenium after being quaternized.Therefore,this paper mainly introduces two nitrogen heterocyclic compounds,imidazole and pyridine,which were regarded as adsorption sites of rhenium,and compares them from the aspects of structure-activity relationship,structural design,acid-base resistance and selectivity,etc.,providing guid-ance for the design of rhenium adsorbents with better performance.Overall,these two types of compounds as rhenium adsorption sites have advantages in acid-base resistance and selective separation,but there is a lack of corresponding theoretical support and e-valuation criteria is not comprehensive enough.
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维普
