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Caption: June 6, 1971 Ð BLOWING ITS STACK Ð A 400-foot chimney which has been standing at the American Smelting and Refining Co. for 54 years slowly sinks to the ground Saturday after demolitions placed around the base were exploded. The chimney was brought down to make room for an $18.5 million plant designed to extract sulfur dioxide from the emissions of the smelting plant, turning it into sulfuric acid at the rate of about 450 tons per day. ASARCO is also building a $2.5 million experimental pilot plant in El Paso to test another method of ridding the air of the sulfur dioxide emissions. (Times Photo by David Dyer)
Album ID: 453964
Photo ID: 17928887
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