Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Copper recovery from brass mill discharge by cementation with scrap iron /
Author Case, Oliver P.,
CORP Author Anaconda American Brass Co., Waterbury, Conn.;National Environmental Research Center, Cincinnati, Ohio.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA-670/2-75-029; EPA-S-803226; EPA-ROAP-21-AZO; 23
Stock Number PB-241 822
OCLC Number 01671106
Subjects Brass industry and trade--Waste disposal. ; Brass--Recycling.
Additional Subjects Copper ; Materials recovery ; Industrial waste treatment ; Metal finishing ; Water pollution ; Water reclamation ; Brasses ; Metal scrap ; Iron ; Chemical cleaning ; Cost estimates ; Precipitation(Chemistry) ; Chromium ; Reduction(Chemistry) ; Water pollution control ; Brass miles
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 670-2-75-029 Headquarters Library/Washington,DC 05/20/2013
EJBD  EPA 670-2-75-029 Headquarters Library/Washington,DC 12/31/2014
ELBD RPS EPA 670-2-75-029 repository copy AWBERC Library/Cincinnati,OH 01/16/2018
NTIS  PB-241 822 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation viii, 51 pages : illustrations ; 27 cm.
This report presents the results of studies of copper recovery (and incidental reduction of hexavalent chromium) in brass mill discharge by passage of the discharge over scrap iron in a rotating drum. The drum feed consisted of normal production discharge of combined pickle rinse water and spent sulfuric acid and sulfuric acid-bichromate pickle. About half of the total mill waste discharge over a period of 16 weeks was processed. Four modes of drum operation were studied: (1) continuous rotation, (2) no rotation, (3) intermittent rotation (1 hr off - 5 min on), and (4) intermittent rotation (2-1/2 hr off - 10 min on). Each mode was studied at two flow levels and two scrap iron surface area levels. Data were evaluated in terms of percent cementation of available copper, excess iron consumption over theoretical, and completeness of chromium reduction. Results indicate that the over-riding factor in the efficiency of copper cementation is the level of copper in the feed solution. Hexavalent chromium is effectively reduced providing the pH is below 2.5.
Report prepared by The Anaconda Co. -- Brass Division, Research and Technical Center, Waterbury, Connecticut. Grant no. S-803226-01-0; program element no. 1BB036. Includes bibliographical references (page 38).