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Operation Of The CONTOP Process At The Asarco El Paso Smelter
By Martin Brueggemann
In 1993, the El Paso Smelter began operation of the first commercial CONTOP copper smelting furnace. The CONTOP process was chosen for the plant modernization due to its low capital cost and the ease
Jan 1, 1998
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Synthesis and Carbon Dioxide Adsorption of Zeolitic Imidazolate Frameworks
By Huimin Lu, Min Li, Jinghua Zou
"Zeolitic imidazolate frameworks (ZIFs) are new type of porous materials, form inerratic polyhedral in three-dimensional with large cages and small apertures, and appear structural diversity. Their ho
Jan 1, 2010
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Roasting Of Complex Concentra1'es With High Arsenic Content
By G. Lindkvist
Roasting of concentrates with high impurity levels is normally done in multiple- hearth furnaces where the concentrates are heated with oilfired burners in order to remove As, Sb and Bi before the fin
Jan 1, 1983
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Recovery of Gold From Leaching Residue of a Complex Sulfide Ore
By Hsing Kuang Lin
Ferric chloride leaching w.as applied to a complex sulfide ore from Tok, Alaska to dissolve zinc, lead, silver and copper. Gold in the leaching residue, as well as in the ore, is found to be refractor
Jan 1, 1989
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The Physical Chemistry of Nickel Laterite Smelting Slags
By C. P. Broadbent
The process metallurgy of many nickel laterite smelting operations is controlled largely by the physical chemistry of the slag system. Consequently, accurate phase diagram information and physicochemi
Jan 1, 1993
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Influence Of Reduction-Carburization Conditions On The Rate Of Iron Carbide Formation (baf41816-35b8-4031-a72d-15e89af4e098)
By A. A. EI-Geassy
High-grade iron ore fines rejected from the DRI plants (>96%Fe2O3) were isothermally reduced in 30-60%CO/H2 gas mixtures at 973-1273K. The freshly reduced reaction products were then subsequently carb
Jan 1, 2003
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Design For Transients In Gas Handling Systems
By Chris Twigge-Molecey
As emission constraints for metallurgical plants become more difficult to meet; control of major, multi-vessel, flue systems become more critical. Control instabilities can result in significant loss
Jan 1, 1992
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The Relationship between Energy Consumption and CO2 Emissions in Iron and Steel Making
By Cang Daqiang, Bai Hao, Li Ning, Liu Xueting, Lu Xin, Zhao Lihua, Li Hongxu, Wei Wei
"Based on the principle of carbon balance, a model was built to calculate C02 emissions of each process and correspondingly the total course of production in iron and steel making. The data from a typ
Jan 1, 2012
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Criteria for the Selection of a Recycling Process for Low Zinc-Containing Residuals f.rom the Iron I Steel Industry
By N. L. Piret
Reprocessing of low zinc-bearing residuals with a zinc content of less than 10%, originating from the iron and steel industry, has been given more and more attention in the last few years, due to the
Jan 1, 1992
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The GHG Emissions List Analysis of Aluminum Industry in China
By Yuanyuan Wang, Yuhao Ding, Hao Bai, Kang Zhou, Guangwei Du
"In this paper, the list analysis of GHG emissions of aluminum industry was conducted based on the data from typical electrolytic aluminum plants of a China’s northwest province. The results show that
Jan 1, 2014
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Preparation of Modified Semi-Coke from Semi-Coke: Process Optimization
By Duan Xin-hui, Wang Xin, Peng Jin-hui, C. Srinivasakannan, Zhang Li-bo
The work attempts to optimize the process of preparation of modified semi-coke from semi-coke using phosphoric acid (H3P04) as the activating agent using the response surface methodology (RSM). The in
Jan 1, 2013
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Some Mineralogical Applications for Investigations of Gold in Geological and Metallurgical Samples
By J. W. Ahlrichs
In gold exploration and metallurgical testing, the role of the mineralogist is to assist in solving problems with regard to (a) sampling, (b) gold occurrences, and (c) petrologic classifications of ho
Jan 1, 1981
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Oxygen Flash Converting for Production of Copper
By G. S. Victorovich
Technical progress in primary smelting has changed the face of the copper industry in the years since the Second World War. Much of this change has resulted from a wide acceptance of flash smelting te
Jan 1, 1993
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Preliminary Assessment of Mercury Contamination Due to Gold Mining in the Rio Ramis-Lake Titicaca Watershed, Peru
By Christopher Gammons
In developing countries throughout the world, gold ores are being processed by mercury amal-gamation, a technique long banned in the U.S. - unless a retort operation is used for mercury recovery - due
Jan 1, 2003
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Review of Classical Design Methods as Applied to Aluminum Billet Heating with Induction Coils
By Ragnhild E. Aune, Mark William Kennedy, Shahid Akhtar, Jon Arne Bakken
"In the present study classical induction design tools are applied to the problem of heating nonmagnetic metal billets, using 50 Hz AC. As an example of great practical industrial interest, the induct
Jan 1, 2011
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A Kinetic Model of Desulfurization by Powder Injection & Blowing in RH Refining of Molten Steel
By Neng-Wen Yu, Shau-Jun Zhu, Ji-He Wei
The desulfurization process by powder injection and blowing in the RH refining of molten steel and its mechanism have been considered and analyzed. Based on the two-resistance mass transfer theory and
Jan 1, 2000
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A Process Flowsheet for the Extraction of Niobium, Titanium, and Scandium from Niocorp’s Elk Creek Deposit
By Niels Verbaan
NioCorp is developing the niobium/scandium/titanium Elk Creek carbonatite deposit. The probable reserve announced by the company in 2017 indicated significant niobium (0.79% Nb2O5), titanium (2.81% Ti
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Preparation of Titanium Based Ferrous Alloys with Low Oxygen Content by Reduction-SHS
By Zhang Hanbo, Niu Liping, Zhang Zhiqi, He Jicheng, Dou Zhihe
"Rutile, ilmenite and Al-Ca complex reducer were used to prepare high titanium ferrous alloy by enhanced reduction-SHS method. The effects of the complex reducer compositions and slag types on the enh
Jan 1, 2012
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Micro Wave Reflection Loss of Ferric Oxide
By Xinli Wang, Matthew Andriese, Jiann-Yang Hwang, Zhiwei Peng, Byoung-Gon Kim
"The microwave reflection loss (RL) of ferric oxide is studied in the temperature range from 297 to approximately 1400 Kat frequencies of 915 and 2450 MHz. It is shown that the maximum microwave absor
Jan 1, 2013
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Kinetics Of Reaction Important In Oxygen Steelmaking
By Kenneth S. Coley, Michael Pomeroy, Elaine Chen
Recent work on modeling of BOF steelmaking is reviewed, highlighting the critical aspects of each approach. It is concluded that the most successful models should be based on a deep understanding of t
Jan 1, 2014