| Show T 11 FE 4 j STORY OF T T M 3 3 1 1 E I 1 W za ff one of the last processes a at tooele thoele is the removal of dross from lead ke kettles atles prior to the metal here a 2 bucket of dross is being hoisted from a huge kettle editors note this is the eighth of a series ot of eight articles titled the story of f tooele thoele la last st but not least in importance by any means is the copper smelter at the tooele thoele smelling smelting sm elting works after the ores ol of various t types are blended to form an easy smelling smelting sm sin eltin elting charge they are fed in batches into the roaster the roaster does not smelt it the charge but drives off moisture and oxidizes a portion of the sulphide materials naturally gases are formed in this process but practically all solids contained in these gases are formed in this process but bue practically all solids contained in these gases are recovered in dust chambers and a cottrell precipitating plant the calcine from the roaster is drawn oft off into 4 ton cars and transported to the furnace I 1 where the second major step in copp copper er smelting smelling sm elting is performed the gas fired furnaces have a temperature of from 2200 to asoo degrees fahrenheit Faren heit As the charge chame molts melts the copper iron and sulphur combine to form a heavy liquid which settles to the bottom while the gangue waste material forms a slag which floats on top the slag is drawn off and poured into cone like cars and transported to the copper slag dump the copper iron sulphur product is a molten metal which is called copper matte the copper matte is then sent to converters for the final smelting smelling sm elting process all copper matte as well as lead matte from the lead blast furnace is treated in these converters the lead fume produced in the verter operation passes to a house where it is all the copper slag is skimmed off the converters int into 0 7 ton eadels and poured back hot to the re verber ator y furnaces blister copper is cast into pound bars by a casting in crane the blister copper L i shipped to the raritan copper works at perth amboy new jersey tor for refining these articles have served to indicate the important bearing 0 that tooele thoele has in the destiny of utah the community will continue to be an important factor in the welfare of utah provided tho the cooperation of every individual is given toward the end that healthy industrial conditions make for or healthy economic conditions an and for the betterment of individuals generally this completes the series of articles titled title the story of tooele thoele |
