Show 0 TERRY MINING metallurgical CAL CORP the terry mining metallurgical corporation po ration has been incorporated in salt lake for the purpose of introducing the terry preferential process for the separation of aina anc lead and copper from iron sulphides sulp hides and other characters of ores the process is patented in the united states and canada and foreign patents are pending it is based on the discovery that ammonia and ammonia salts in the presence of air oxidizes iron sulphides sulp hides and render this ini mineral immune to notation flotation being a solvent for the oxides of zinc and lead these minerals are cleaned and their flot ability is enhanced so that both a high grade product and high recovery is attained by this process the terry mining metallurgical corporation por po ration cion is in the market to purchase and separate complex ores concentrates table etc to install flotation apparatus and the process on oil a royalty basis |