Current Situation of Iron Recovery and Utilization in NdFeB Waste
Firstly,various wet processes for the recovery of rare earth in Nd-Fe-B waste are briefly introduced.Then it fo-cuses on the research status of the relevant processes of iron resource recovery and utilization in Nd-Fe-B waste,such as co-re-covery of rare earth and iron,treatment of iron-containing wastewater or waste slag after recycling rare earth,direct reuse and regeneration of Nd-Fe-B waste are reviewed.This paper compares the advantages and disadvantages of various processes,and puts forward some suggestions on the recycling of rare earth and iron resources in Nd-Fe-B waste,which can provide reference for realizing more efficient comprehensive utilization of Nd-Fe-B waste and reducing secondary pollution.
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