将黄铁矿或硫作为燃料加入金矿中在流态化床上焙烧的技术金矿中加入作为燃料的硫或黄铁矿，在含氧２０％～５０％的气氛，温度４００～６５０℃（最好是５００～５５０℃）下，于流态化床或环形流态化床上焙烧。矿物的平均粒径应小于１ｍｍ，最好是６０％～８０％的矿物粒... Addition of pyrite or sulfur as fuel to gold ore Technical gold ore roasted in a fluidized bed is charged with sulfur or pyrite as a fuel in an atmosphere of 20% to 50% oxygen and a temperature of 400 to 650 ° C ( Preferably 500 to 550 ° C), and then roasted on a fluidized bed or a circular fluidized bed. The average particle size of minerals should be less than 1mm, preferably 60% ~ 80% mineral particles ...