Development for Hydrometallurgical Process of Cobalt Rich Crusts

摘要

National Institute for Resources and Environment (NIRE) has developed a hydronetallurgical process for recovery of Co, Ni, and Cu from cobalt rich crusts. NIRE process are the use of a nixture of aqueous ammonium carbonate and ammonium sulfite solution as leaching reagents, extraction of Ni and Cu in the pregnant liquor with LIX84 as organic solvent, and alcohol deposition of Co in the residue liquor.The flowsheet for recovery of Co, Ni, and Cu from cobalt rich crusts are presented.