Show I 1 NEW ZINC REFINING METHOD some isome compensation has come to the aus 1 L gralian zinc producers from the interruption to their operations cause caused d by the european war for their ores and concentrates were refined in germany up till that time and since there has not been sufficient smelling smelting sm sni elting capacity elsewhere to refine their product but owing to an invention of mr J E hamilton a revolution in zinc refining has been created in australia by hamiltons method the zinc ores and concentrates conce are refined in a mechanical furnace in which the sulphur is recovered as a commercial product and the metallic zinc is produced in a most simple manner with a reduction or of costs amounting to 70 per cent over the older methods and a still greater proportionate reduction in tile the cost of the necessary apparatus pa ratus by air hamiltons process no ume powder is formed and no zinc vapor is lost and 99 per cent of tile the zinc is produced in a pure state from a continuous mechanical and automatic furnace that is practically practically foolproof fool proof and operates at very low temperatures pera tures this is a great for Aus australia trania as well as for mr hamilton and it is expected that it will result in saving the broken hills interests as much as three million dollars per annum for henceforth they will export refined spelter instead of concentrates mr hamiltons memos are said to be applicable to most complex ores in addition to those of zinc and it is expected that such ores may be hereafter treated directly without concentrating and always recovering the sulphur ars arsenic enec and other volatile elements |