Show volatilization OF SILVER numerous experiments with the volatilization of silver chloride from ores have been conducted oy by the department of the interior at the salt lake city aid a berkeley california experiment stations of the bureau of mines in addition to experimentation of ores research research was done along b physicochemical che chemical mical lines the included the de termination determination of the vapor pressures of the sil ver chloride at various temperatures also an exa minati of the hydrolysis of silver chloride by water vapor result resu ing in the formation of metallic silver approximate e det mi ruinations nations were made of the equilibrium at various teo te pera tures between silver chloride water vapor and hydro hy acid the temperatures at which several j minerals of silver were oxidized or disassociated associated dis were noted no from the results of the last mentioned experiments experiment it seems that the roasting of silver mineral tends to produce pra metallic silver roasting of silver therefore is essentially a problem of metallic let silver and subsequent volatilization of silver chloride anae 10 the furnace conditions must be maintained that prevent P the silver from being hydrolyzed and from reverting re vertin floride to the g metallic state before passing from the ore as silver c ch during volatilization after further study a detailed depolt rep covering g these experiments will be published sil silver ver is not easily and volatilized and ana 5 so far offered cor coni ninon greater difficulty than any of the m metals atals it seems extremely sensitive to atmospheric coradi c eions in the furnace and probably is easily effected by the gangue constituents of the ore silver minerals occur in many low grade and complex ores of lead zinc and copper silver sometimes being of major importance especially in economic value A high percentage extraction is required to make any process for such ores commercially feasible in many ores the silver has minor value when silver is present with rather high percentages of lead and copper it may not seem economical to provide the conditions for making high extractions |