Purification of Crude Ammonium Perrhenate from Potassium by Recrystallization, Sorption, and Membrane Electrodialysis

A. N. Zagorodnyaya, Zinesh Sadyrovna Abisheva, L. Ya. Agapova, Шарипова Айнаш Сугурбековна

2019

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DOI 10.1134/s0040579519050233
Data confidence 70 medium
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Abstract

Abstract— The results of experiments on preparing pure (marketable) salt from crude salt of ammonium perrhenate are presented; the pure salt is rigidly standardized in elements–impurities and rhenium by recrystallization, sorption, and membrane electrodialysis. AP-0 salt is obtained from solutions purified from elements–impurities by recrystallization, AP-00 salt is obtained by sorption, and the salt purer than AP-00 is obtained by electrodialysis. The advantages and disadvantages of each of the methods are specified.