Sampling of Electrorefined Copper Cathodes

    Volume 8, Issue 4 (July 1980)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 5


    Tuddenham, WM
    Analytical services director, Utah Copper Division; refinery process control supervisor, Utah Copper Division; and, scientist, Process, Technology, Kennecott Minerals Co., Salt Lake City, Utah

    Dangerfield, AD
    Analytical services director, Utah Copper Division; refinery process control supervisor, Utah Copper Division; and, scientist, Process, Technology, Kennecott Minerals Co., Salt Lake City, Utah

    McMillan, BB
    Analytical services director, Utah Copper Division; refinery process control supervisor, Utah Copper Division; and, scientist, Process, Technology, Kennecott Minerals Co., Salt Lake City, Utah

    Abstract

    Problems involved in the sampling of electrorefined cathode production in a typical refinery are examined. Items discussed include: nonhomogeneity in single cathodes, nonhomogeneity among cathodes from the same electrolytic cell, nonhomogeneity among cathodes from single production lots, and limitations of visual examination in predicting cathode quality. Ordinary sampling procedures involving one or two cathodes are shown to be totally inadequate for obtaining true measures of the average impurity contents from a shipping lot. Suggestions for sampling frequency drawn from the experience of the study are presented.


    Paper ID: JTE11607J

    DOI: 10.1520/JTE11607J

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    Author
    Title Sampling of Electrorefined Copper Cathodes
    Symposium , 0000-00-00
    Committee B01