THE STORY OF COPPER [--REFINING] Reel 1 · Part 2
Description
Shows processes by which pure copper is obtained from smelted copper in a Baltimore refinery. Copper impurities remaining after smelting are removed by melting and electrolysis.
Read moreCollection
Records of the U.S. Bureau of Mines
Series
Public Information Films and Video Recordings
NARA ID
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Local ID
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Date
1927-01-01
File
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TRT
3:38