A 文章编号: 1004-0676 ( 2017 ) 01-0083-04 Progress in Dissolution Technique of Ruthenium Material

Ruthenium-containing material is difficult to be dissolved, and how to transfer it into the solution remains to be a big challenge in ruthenium metallurgy. The dissolution methods used in a variety of ruthenium material are introduced, and the respective advantages and disadvantages are also discussed. Melting, chlorination and pre-activated dissolution are three commonly used techniques for handling bulk materials, but they have disadvantages of requiring a long dissolving time, causing environmental pollution and introducing undesired impurities. Electrochemical dissolution, as a method known to produce less pollution, does not have enough dissolving rate. As for other dissolution methods, such as the pressurized alkalization, the pressurized acidification, the microwave digestion and ozone oxidation, although they are able to dissolve the material effectively, the dissolving containers are required to have enough resistance to high temperature, high pressure and high-corrosion environment. Moreover, these method are not applicable to the treatment of bulk material.