METHOD FOR EXTRACTING NICKEL, COBALT, AND IRON FROM LOW-GRADE LATERITE NICKEL ORE

摘要

A method for extracting nickel, cobalt, and iron from a low-grade laterite nickel ore: respectively treating a transitional layer laterite nickel ore and a limonite layer laterite nickel ore, the iron grade of an iron ore concentrate produced reaching 60% to 65%; at the same time, employing a resin adsorption technique and by means of evaporation, concentration, and crystallization, producing nickel sulfate and cobalt sulfate products containing 20% to 30% of nickel and containing 1% to 2.2% of cobalt, applicable as raw materials for producing a battery.