针对高温合金浸出渣中的钌，采用碱焙烧-水浸工艺进行实验研究，考察了碱料比、焙烧温度、焙烧时间、水浸温度、水浸时间等因素对钌浸出率的影响。结果表明，碱料比、焙烧温度对钌的浸出率影响较大。在最佳的实验条件：碱料比8：1、焙烧温度600℃、焙烧时间4 h、水浸温度95℃、水浸时间3 h下，钌的浸出率为98.3%。
Reaching ruthenium from waste high temperature alloy was studied by using a technique combined the alkali roasting with water-leaching. The effects of the ratio of alkali to material, roasting temperature and time, water leaching temperature and time on the leaching rate of ruthenium were investigated. The experimental results show that the ratio of alkali to material and roasting temperature greatly affected the leaching rate of ruthenium. The optimal conditions are as follows:using an 8:1 ratio of alkali to material, roasting at 600℃for 1 hour, water-leaching at 95℃for 3 hours. Under these conditions, the leaching rate of ruthenium was 98.3%.
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