二氧化钌水洗工艺的改进

Improvement of water washing technology in preparation of RuO_2.

常用二氧化钌水洗钠离子工艺， 用容器沉淀二氧化钌， 抽取上部溶液， 加水洗。用这种方法， 二氧化钌产品收率低， 约７５％ 。用玻沙漏斗抽滤， 加入热去离子水洗方法， 二氧化钌产品收率高， 约９９％ ， 制备出的二氧化钌质量符合要求， 降低了生产成本。

ELECTRONIC COMPONENTS & MATERIALS (China), Vol 18, No 6, P 23, 26(Dec 1999) In Chinese In preparation of RuO 2, with the conventional water washing technology, the yield of RuO 2 is about 75%. In the improved water washing technology, warm de ionize water and a funnel are employed. With the improved technology, the yield of RuO 2 is increased to 99%. (no refs.)