LEACHING OF NI-CU-FE-S MATTE

摘要

LEACHING OF Ni-Cu-Fe-S MATTEAbstract of DisclosureNickel is selectively leached efficiently and rapidlyfrom Ni-Cu-Fe-S matte under oxidizing conditions at ordinary pres-sure by controlling in combination the following variables:(1) the acid-to-copper mole ratio in the leaching solution,(2) the temperature, and (3) the sulfur content of the matte,whereby an enriched nickel solution is obtained low in copper andiron.