Получение оксида неодима из шлифотходов производства постоянных магнитов

Kinetic laws of solubilizing grinding wastes of permanent magnet production by sulfuric acid solution have been studied. Activation energy was computed and it was shown that the process occurs in transition region. The mathematical model of neodymium oxalate deposition from sulfuric solutions was constructed; optimal deposition conditions were determined. The influence of calcination temperature and time on neodymium oxalate thermal decomposition was studied.