高纯贵金属硝酸盐的制备及其应用

Preparation and Application of High Purity Precious Metal Nitrates

贵金属硝酸盐在工业催化、生物医药、石油化工等领域应用广泛。本文综述了贵金属硝酸盐的制备方法,包括硝酸直接溶解法和间接硝酸反应法两大类,其中硝酸直接溶解法中叙述了银、钯硝酸盐的制备,间接硝酸反应法中重点介绍了钌、铑、铱和铂硝酸盐的制备,总结了贵金属硝酸盐产品中重金属、卤素、碱金属等杂质的去除方法及进展。

Precious metal nitrates are widely used in industrial catalysis,biomedicine,petrochemical and other fields.In this paper,the preparation methods of precious metal nitrates are reviewed,including direct nitric acid dissolution and indirect nitric acid reaction.The preparation of silver and palladium nitrates are described in the direct dissolution of nitric acid,while the preparation of ruthenium,rhodium,iridium and platinum nitrates are mainly introduced in the indirect nitric acid reaction.The removal methods and progress of heavy metals,halogens,alkali metals and other impurities in precious metal nitrate products are summarized.