Story of Copper, The - Refining (Part Nine)

The Story of Copper - Refining (Part Nine) Kennecott Copper Corporation 00:06:54 Title: “Blister copper must be refined to recover the gold, silver & platinum...& to remove arsenic...” 00:07:16 LS of smoking chimneys & large Baltimore, Maryland copper refinery. Pan across roofs 00:07:54 Title: “Unloading Blister Copper”. Small railroad engine pulling low cars stacked w/ ingots on dock beside freighter. Dockworkers. Men loading from railroad cars. 00:08:53 Large refining furnace & moving ingots w/ chains & overhead crane onto shovel that puts them into furnace. CU ingots into furnace. 00:10:07 Title: “Air is blown through the molten copper to oxidize & slag the impurities”. Bubbling molten metal. 00:10:43 Man raking slag from surface. 00:11:03 Title: “Copper oxide that has formed in the copper is reduced by thrusting green wood poles into it.” Large poles moved in w/ hoist & chains. Cooling copper slowly bubbling in large hand ladle. 00:12:44 Title: “The copper is then tapped from the furnace, cast into anode form, & cooled by a water spray.” Two men opening hole in bottom of furnace; copper flowing out, divided into two streams & filling molds turning on large rotating wheels as they fill. Steam rising as water sprayed onto ingots. Large cooled copper plates lifted out & stacked on edge; man chalks numbers. End of Part Nine. Hot Working Conditions; Heavy Industry; Heat; Laborers; 1920s; Natural Resources;