研究了从真空钙热还原炉渣中回收稀土的工艺条件；采用本工艺得到的合格稀土溶液，其回收率达65。
Certified re solution can be obtained by this process and the recovery rate is up to 65.
介绍了用氟化钪钙热还原得到的粗金属钪为原料，通过真空蒸馏净化制取纯金属钪的工艺过程及其技术参数。
The technics of purifying Sc metal in vacuum distilling with coarse Sc metal which is made by ScF3deoxidized by Ca at heated condition.
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