منابع مشابه
CODELCO, Chile Programs Its Copper-Smelting Operations
CODELCO’s Chuquicamata Copper Smelter, located in Chile, must meet an environmental standard established in 2002 that limits the sulfur emissions from the copper-production process. This regulation placed new restrictions on the production process, and consequently the heuristic criteria based on years of operator experience no longer resulted in high production levels. We developed a model to ...
متن کاملRecirculation of Chilean Copper Smelting Dust with High Arsenic Content to the Smelting Process
Most of the dust generated from the copper smelting process in Chili has been stored after the stabilization by hydrometallurgical process because it contains high concentration of arsenic. However, in recent years, the generation of dust has increased because of degrading the quality of concentrate. In addition, the environmental regulations become stricter. On the other hand, valuable metals ...
متن کاملEffect of grinding time on flotation recovery of copper smelting slags in Bardaskan district
Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. Copper smelting slags in the Bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree of freedom for the flotation tests, with particle size of 80%, smaller than 70 μm. With this gri...
متن کاملVisual Appearance of Matte
All visual sensors, biological and arti cial, are nite in resolution by necessity. This causes the e ective re ectance of surfaces in a scene to vary with magni cation. A reectance model for matte surfaces is described that captures the e ect of macroscopic surface undulations on image brightness. The model takes into account complex physical phenomena such as masking, shadowing and interre ect...
متن کاملRecent operation and environmental control in the Kennecott Smelter
The new Kennecott Utah Copper smelter, started in 1995, was designed to be the cleanest smelter environmentally in the world. The plant is operating at production rates above the original design capacity. Copper concentrate is smelted in an Outokumpu flash smelting furnace. Matte is granulated and processed using Kennecott-Outokumpu flash converting. Copper anodes are processed in a modernized ...
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ژورنال
عنوان ژورنال: Mineral Processing and Extractive Metallurgy
سال: 2018
ISSN: 2572-6641,2572-665X
DOI: 10.1080/25726641.2018.1514774