Abstract

Results are presented of tests, mastering, industrial exploitation, and optimization of an integrated scheme for fractionation of liquid high-activity wastes (HAWs) produced in processing of spent nuclear fuel (SNF), which includes the extractive recovery of the Cs–Sr with the system based on chlorinated cobalt dicarbollide in a heavy fluorinated diluent and extraction from the resulting raffinates of a group of rtansplutonium and rare-earth elements by the oxalate precipitation method. This was done at Mayak Production Association in 1996–2003. A total of more than 1600 m³ of HAWs that were stored during a long time in storage facilities and contain more than 54 MCi of β- emitters. About 52 MCi of β- and also about 0.5 MCi of α-nuclides were isolated into concentrates and transferred to vitrification. The scale of activities on integrated fractionation of acid HAWs has no analogs in the world.

中文翻译：

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在Mayak生产协会掌握用于液态高活性废物的分馏综合沉淀-沉淀技术的掌握，工业开发和优化的经验

摘要

给出了测试，掌握，工业利用和分馏在乏核燃料（SNF）加工过程中产生的液态高活性废物（HAW）的综合方案的优化结果，包括萃取回收Cs-Sr和该系统基于在重氟化物稀释剂中的氯化钴二水合钴，并通过草酸盐沉淀法从生成的一组tan钽铁矿和稀土元素的提余液中提取。这是在1996-2003年在Mayak生产协会进行的。总计超过1600 m ³长期存放在存储设施中的HAW中，有超过54个MCi的β-发射体。将大约52 MCi的β-以及大约0.5 MCi的α-核素分离到浓缩物中并转移到玻璃化中。酸性HAW的整体分馏活动规模在世界上尚无类似产品。