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METHOD OF PREPARING RARE-EARTH METAL, YTTRIUM, AND SCANDIUM HYDRIDES

机译:稀土金属,钇和氢化铯的制备方法

摘要

FIELD: rare-earth metal metallurgy. SUBSTANCE: invention aims at simplifying preparation process consisting in substituting explosive hydrogen by less dangerous substance, increasing efficiency of process due to elimination of diluent (salt melt), and improving quality of final product. To achieve it, metal chlorides are thermally treated in presence of reducing agent, namely lithium hydride, whereupon hydrometallurgical treatment in acidic acid follows, in particular, with hydrochloric, nitric, and citric acid solutions with concentration 0.1-0.5 mol/l. Final product is filtered off at 60-70 C. EFFECT: simplified and improved process. 2 cl
机译:领域:稀土金属冶金。物质:本发明旨在简化制备过程,包括用危险性较小的物质代替爆炸性氢,由于消除了稀释剂(盐熔体)而提高了过程效率,并提高了最终产品的质量。为此,在还原剂即氢化锂存在下对金属氯化物进行热处理,随后在酸性酸中进行湿法冶金处理,尤其是随后使用浓度为0.1-0.5 mol / l的盐酸,硝酸和柠檬酸溶液。在60-70 C的温度下过滤出最终产品。效果:简化和改进了工艺。 2厘升

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