METHOD FOR RECOVERING TRACE ELEMENTS FROM COAL

摘要

The present invention is directed to a method for the recovery of one or more trace elements including gold and one or more platinum group elements from coal (11). More particularly, the present invention may specify parameters for the selection of coal for combustion (15), the parameters for combustion of the pre-selected coal (20), the parameters for the preparation and mixing of a charge for a furnace including ash (25) from the combustion of the coal with an inquart (26) and a fluxing agent (27), the parameters for the heating of the charge (36) and casting of a dore bar (42) and the parameters for the production of an anode slime from the dore bar (45). The method of the present invention may also specify parameters for the recovery of silver (54), gold (55) and one or more trace platinum group elements (75) from the anode slimes.