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Spedden and his coworkers [28}introduced a cone-shaped cementation apparatus. The cone is filled with shredded iron through which copper-bearing solutions are pumped upwards. During operation of these cones they observed that the application of kinetic principles resulted in the production of a more granular and high purity copper cement as
The operation of Kennecott's Bingham Canyon copper precipitation plant, one of the world's largest, is described. This description includes a brief historical review of precipitation at Bingham and the general layout and operation of the present cone cementation facility. Current practices are based on results of studies undertaken to define improvements needed in each unit …
Kennecott properties in the United States, copper ... cementation with iron in launders, precipitation drums, activated launders, and precipitation cones. ... The results of these investigations have led to the development of a precipitation cone-type recovery system having advantages over older methods. Electrowinning: The direct ...
A rotary copper cementation plant was developed for the process. Standard Kennecott cone technology did not work in this application.The project was sold to Hillgrove Resources for development of a large low grade sulphide resource. Copper Mine. 2009- 2011.
July 2013 SPS contracts Dr. Joe Schlitt, Hydrometal Inc. regarding the Kennecott Cone August 2013 Additional testing of cement Cu samples Sept 2013 Cement copper work plan submitted to EPA, NDEP, ARC October 2013 Cement copper samples sent to prospective buyers October 2013 SPS responds to EPA and NDEP copper cementation process questions
Both ma- chine and human productivity have increased dramatically. This chapter briefly describes the technology for producing copper, from exploration, through mining and milling, to …
This paper contains information on the development and use of a new precipitation-cone-type copper recovery plant, which provides many advantages over older systems. The application …
A process for improving overall recovery of copper from an integrated mining and metallurgical processing operation by utilizing iron-containing copper ore materials as mined, such as low-grade copper ores and mine wastes, and crushed or granulated copper-containing slag obtained by smelting the higher-grade portions of such ore materials, involves the minign of such ore …
The operation of Kennecott's Bingham Canyon copper precipitation plant, one of the world's largest, is described. This description includes a brief historical review of precipitation at …
Underground battery electric vehicles are currently being trialled at Kennecott to improve employee health and safety, increase productivity and reduce carbon emissions from future underground mining fleets. ... Wear parts …
Kennecott's operating experience with precipitation cones has demonstrated that the application of kinetic principles results in the production of precipitate copper of a more …
Electrical Engineer at Cementation Americas · Experience: Cementation Americas · Education: University of Utah · Location: Salt Lake City Metropolitan Area · 500+ connections on LinkedIn. View ...
Assignee: Kennecott Copper Corporation Inventors: Robert E. Lueders, Theodore C. Frankiewicz Coiling system for metallic strands. Patent number: 4172375 Abstract: ... A rotating cone is disposed over the inner wall. At least one boom and a set of opposed rolls and associated fairing assemblies mounted on the boom guide the strand from the ...
1 Rodriguez Dante From: Seter David Sent: Thursday September 25 2014 2:50 PM To: Rodriguez Dante Ball Harold Helmlinger Andrew Subject: FW: SPS Cement Copper Evaluation Attachments:…
Two methods are used in current cementation practice. The first method consists of passing acidic copper-bearing leach solutions through launders containing shredded tin cans. The second method, developed by Kennecott Corp., uses shredded and detinned cans and tinplate scrap in cone-type precipitators.
Detailed investigations made in laboratory pilot plant and plant tests for the recovery of copper from copper-bearing solutions have included elec- trowinning, solvent extraction, ion exchange …
The operation of Kennecott 's Bingham Canyon copper precipitation plant, one of the world's largest, is described. This description includes a brief historical review of precipitation at Bingham and the general layout and operation of the present cone cementation facility. Current practices are based on results of studies undertaken to define improvements needed in each unit …
Kennecott's operating experience with precipitation cones has demonstrated that the application of kinetic principles results in the production of precipitate copper of a more granular, higher purity form and at a lower iron consumption than is possible with the older launder methods. High capacity, versatile, precipitating vessels are now available with features permitting automatic …
For example, at the completion of the current expansion program at the Kennecott properties in the United States, copper produced from waste dump leaching will amount to about 25% of …
Process and cone apparatus are designed to simplify extraction of precipitate copper from low-grade ore. A precipitation process and a cone-shaped apparatus which together recover …
Cementation. Cementation with scrap iron is a long-established process which largely met its demise with the advent of SX/EW.
We claim 1. In the process of filtering precipitate copper from aqueous slurries containing dissolved copper values and having a pH of greater than 2, wherein a filter cake is formed and air is blown through the filter cake for drying, the improvement which comprises adding sulfuric acid to the slurry to reduce its pH to between about 0.5 and about 2 prior to the filtration and drying, …
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Kennecott Minerals Company has developed a leach-hydrolysis route for treating flue dusts from copper smelters The flue dusts are acid leached in an oxygen atmosphere to solubilize copper and fix the arsenic, antimony, and bismuth as stable compounds Copper is recovered by cementation with Iron and the barren solution is recycled Molybdenum and other values may …
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Kennecott's operating experience with precipitation cones has demonstrated that the application of kinetic principles results in the production of precipitate copper of a more granular, higher …
continued to use the cementation process because the reaction and precipitation of copper in solution onto iron is a spontaneous and inexpensive process. The mine set-up included three tanks for copper cementation followed by a Kennecott sedimentation cone for final settling of the precipitated copper. Any overflow of copper beyond this equipment
by the introduction of the Kennecott cone. The attractions of cementation remain valid today, namely low capital cost and low power consumption. An excellent example of an innovative approach is at Adchem's Mt Gunson heap leaching operation in South Australia, which produces cement copper for
Finch says Kennecott has suspended Cementation's contract, and the company laid off its 70 people working at the site. Mining operations continue on the unaffected upper-southeast side of the ...
Cementation is said to have been practiced in China in the ... Precipitation cones were invented by Kennecott engineers in the 1960s and were installed to replace the launders at
the cementation reaction is fast, slow flow rate of solution will result in excessive dissolution of iron by the acid. Precipitation cones were invented by Kennecott engineers in the 1960s and were installed to replace the launders at their extensive heap leaching operation at Copperton Mill in Bingham Canyon, Utah. The inverted cone is a ...
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significantly alleviated by the introduction of the Kennecott cone (7)in the USA . Some of the attractions of cementation remain valid today, namely low capital cost and low power consumption, which have resulted in a number of relatively small scale operations. I. t can be a useful option where there is an on-site smelter.