Author: John G. Parker
Publisher:
ISBN:
Category : Copper
Languages : en
Pages : 92
Book Description
Important quantities of gold, silver, platinum-group metals, selenium, tellurium, and arsenic are recovered in the processing of copper concentrates. The objective of this Bureau of Mines study was to determine the occurence of these elements in copper ores and to trace their distribution during subsequent processing steps. The study describes the important areas supplying concentrates, precipitates, and unrefined copper to the copper smelting and refining ndustry in a composite of the years 1971-74. The relative importance of these areas as a source of the respective byproducts is assessed. The lack of certain quantitative and assay data, recycling of dusts and slags, and the addition of scrap to the feed often complicates calculations and estimations of the byproducts in the smelter-refinery throughptus. Such volatile or low-boiling point elements as arsenic, slenium, nad tellurium may be lost in gaseous and other emissions in various processign stages, or they may be concentrated in slags and residues for which samples were not available. the effects of antipollution legislation to improve control of sulfurous and other emissions that may affect recovery of certain byprodcuts was noted. A section on newer technology illustrating hydrometallurgical techniques that may affect the recovery of minor metals is included.
Occurrence and Recovery of Certain Minor Metals in the Smelting-refining of Copper
Author: John G. Parker
Publisher:
ISBN:
Category : Copper
Languages : en
Pages : 92
Book Description
Important quantities of gold, silver, platinum-group metals, selenium, tellurium, and arsenic are recovered in the processing of copper concentrates. The objective of this Bureau of Mines study was to determine the occurence of these elements in copper ores and to trace their distribution during subsequent processing steps. The study describes the important areas supplying concentrates, precipitates, and unrefined copper to the copper smelting and refining ndustry in a composite of the years 1971-74. The relative importance of these areas as a source of the respective byproducts is assessed. The lack of certain quantitative and assay data, recycling of dusts and slags, and the addition of scrap to the feed often complicates calculations and estimations of the byproducts in the smelter-refinery throughptus. Such volatile or low-boiling point elements as arsenic, slenium, nad tellurium may be lost in gaseous and other emissions in various processign stages, or they may be concentrated in slags and residues for which samples were not available. the effects of antipollution legislation to improve control of sulfurous and other emissions that may affect recovery of certain byprodcuts was noted. A section on newer technology illustrating hydrometallurgical techniques that may affect the recovery of minor metals is included.
Publisher:
ISBN:
Category : Copper
Languages : en
Pages : 92
Book Description
Important quantities of gold, silver, platinum-group metals, selenium, tellurium, and arsenic are recovered in the processing of copper concentrates. The objective of this Bureau of Mines study was to determine the occurence of these elements in copper ores and to trace their distribution during subsequent processing steps. The study describes the important areas supplying concentrates, precipitates, and unrefined copper to the copper smelting and refining ndustry in a composite of the years 1971-74. The relative importance of these areas as a source of the respective byproducts is assessed. The lack of certain quantitative and assay data, recycling of dusts and slags, and the addition of scrap to the feed often complicates calculations and estimations of the byproducts in the smelter-refinery throughptus. Such volatile or low-boiling point elements as arsenic, slenium, nad tellurium may be lost in gaseous and other emissions in various processign stages, or they may be concentrated in slags and residues for which samples were not available. the effects of antipollution legislation to improve control of sulfurous and other emissions that may affect recovery of certain byprodcuts was noted. A section on newer technology illustrating hydrometallurgical techniques that may affect the recovery of minor metals is included.
Information Circular
Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 312
Book Description
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 312
Book Description
Federal Information Processing Standards Publication
Author:
Publisher:
ISBN:
Category : Public administration
Languages : en
Pages : 1228
Book Description
Publisher:
ISBN:
Category : Public administration
Languages : en
Pages : 1228
Book Description
List of Bureau of Mines Publications and Articles ... with Subject and Author Index
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 576
Book Description
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 576
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1074
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1074
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1228
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1228
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Iron Oxide Pigments
Author: Thomas S. Jones
Publisher:
ISBN:
Category : Iron oxides
Languages : en
Pages : 918
Book Description
Publisher:
ISBN:
Category : Iron oxides
Languages : en
Pages : 918
Book Description
SP007: Bibliography of Nevada geology and mineral resources through 1980, an alphabetical listing by author
Author:
Publisher: NV Bureau of Mines & Geology
ISBN:
Category :
Languages : en
Pages : 188
Book Description
Publisher: NV Bureau of Mines & Geology
ISBN:
Category :
Languages : en
Pages : 188
Book Description
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2248
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2248
Book Description
Bulletin
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 1076
Book Description
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 1076
Book Description