The Figure Of Bitu-Man, 2014 University of Nebraska - Lincoln
The Figure Of Bitu-Man, Paul Royster
Faculty Publications, UNL Libraries
The ominously imposing figure in the above illustration is “the Syncrude bird deterrent device, locally known as ‘Bitu-man’.” He stands (or stood—the original image was from the late 1970s) in the tailings pond of the Syncrude Canada Ltd. oil sands mining operation along the Athabasca River near Fort McMurray in northeastern Alberta. That operation surface mines (i.e., strip mines) bitumen-impregnated sand, processes it with hot water and steam, and discharges the liquid effluent or “tailings” into a pond covering roughly 3000 hectares (11 square miles). (Google Map coordinates: 56.9°N, -111.3° W). Residue bitumen collects on ...
A New Process To Upgrade Ilmenite To Synthetic Rutile, 2014 SelectedWorks
A New Process To Upgrade Ilmenite To Synthetic Rutile, Fathi Habashi
Ilmenite occurs in black sand at the mouth of great rivers as in India, or as massive deposits like in Quebec Province in Canada. It is unsuitable for processing into pigment or for metal production because of its high iron content and its low grade. Pyrometallurgical and hydrometallurgical methods have been developed to cope with this problem which resulted in the production of two commercial products that became known as synthetic rutile and Sorelslag. Attempts are also underway to produce TiO2 pigment directly from ilmenite. This report presents a newly developed process called the Magpie process, which enables the production ...
Fluid Properties In The Formation Of High-Grade Iron Ore In Northern Minnesota, 2014 Minnesota State University, Mankato
Fluid Properties In The Formation Of High-Grade Iron Ore In Northern Minnesota, Elizabeth Drommerhausen
Journal of Undergraduate Research at Minnesota State University, Mankato
The Mesabi Iron Range in Northern Minnesota has been a major producer of iron ore for over 100 years. Production has been from the 1.85 – billion-year –old Biwabik Iron Formation, an iron-rich sedimentary rock that is tilted gently to the south. Most of the known high-grade ore lies near the surface and has been already mined. Determining whether more high-grade ore may lie at depth could have significant economic impact on the mining industry in northern Minnesota. To evaluate the likelihood of finding more high-grade iron ore deeper underground, it is important to determine the source of the fluids ...
Study On Deterioration Mechanism And Prevention And Curing Techniques Of An Rc Bunker, 2014 Purdue University
Study On Deterioration Mechanism And Prevention And Curing Techniques Of An Rc Bunker, Henglin Lv, Haijian Xie, Shuchun Zhou, Sun Lei
International Conference on Durability of Concrete Structures
In the coal mining industrial environment, the materials of RC bunkers suffer from serious aging problems. The cracking and deterioration of concrete and the corrosion of steel reinforcement lead to a degeneration of structural performance and a decline of structural reliability. In this paper, based on on-site detection and coal mining ground industrial environment, the deterioration characteristics of RC bunkers were tested. The investigation involved the apparent characteristics, carbonized depth, compression strength of concrete, reinforcement distribution and cover thickness, corrosion rate and mechanical properties of reinforcement, decline degree of bunkers, and so on. Then a design review check was done ...
Pressure Hydrometallurgy, 2014 SelectedWorks
Pressure Hydrometallurgy, Fathi Habashi
Pressure Hydrometallurgy is a supplement to the author’s Textbook of Hydrometallugy [second edition 1999]. It is an update to the new processes described in the literature dealing with recovering metals from ores and concentrates using this technology. Great progress was made in this field that necessitated this review.
Travelling In Turkey, 2014 SelectedWorks
Travelling In Turkey, Fathi Habashi
The peninsula that lies between the Black and Mediterranean seas, called Asia Minor by the Romans and Anatolia by the Greeks, was one of the crossroads of ancient civilizations. The fall of Constantinople in 1453 was a turning point in the history of mankind. Visits to Istanbul, Ankara, Eskisehir given together with the history of the country. Mineral resources of the country is briefly outlined.
History Of Innovation In Extractive Metallurgy, 2014 SelectedWorks
History Of Innovation In Extractive Metallurgy, Fathi Habashi
People learned melting of ores to get metals since ancient times but the use of aqueous solutions for this purpose was introduced relatively recently in the Middle Ages. The most recent technology, however, came when electric current became available on commercial scale towards the middle of the nineteenth century. The present article records in general terms the development in pyro- , hydro-, and electrometallurgy
Catalytic Or Thermal Reversed Flow Combustion Of Coal Mine Ventilation Air Methane: What Is Better Choice And When?, Krzysztof J. Gosiewski
The paper presents a comparison of the two options of reverse flow reactors destined for the utilization of coal mine ventilation air methane by catalytic (CFRR) or thermal (TFRR) combustion. It has been shown that both solutions have advantages and drawbacks. The use of the catalyst significantly decreases reactor temperature and makes the operation becomes to be autothermal for methane concentrations lower than in TFRR (even as low as over 0.06 vol.%). On the other hand when methane is combusted, particularly if average concentration is higher than ca. 0.4 vol.% the maximum temperature in the reactor appears to ...
Metalurjiye Adanmış Bir Hayat, 2014 SelectedWorks
Metalurjiye Adanmış Bir Hayat, Fathi Habashi
Evidence Of The Existence Of Cathodic And Anodic Zones During The Leaching Of Minerals And Metals, Fathi Habashi
It is accepted worldwide that the dissolution of minerals in some cases, is an electrochemical process where anodic and cathodic reactions take place. There are many parameters, such as agent concentration, that directly affect the dissolution process. The rate of leaching of minerals may differ depending on the oxygen concentration. In this paper, the existence of anodic and cathodic zones on themineral surface during the dissolution/leaching of minerals andmetals has been presentedwith some differentworks. It isworthmentioning that a good number of published papers have experimentally demonstrated the existence of anodic and cathodic areas on the mineral surface.
Multiscale Modeling Of The Mine Ventilation System And Flow Through The Gob, 2014 University of Kentucky
Multiscale Modeling Of The Mine Ventilation System And Flow Through The Gob, William Chad Wedding
Theses and Dissertations--Mining Engineering
The following dissertation introduces the hazard of methane buildup in the gob zone, a caved region behind a retreating longwall face. This region serves as a reservoir for methane that can bleed into the mine workings. As this methane mixes with air delivered to the longwall panel, explosive concentrations of methane will be reached.
Computational fluid dynamics (CFD) is one of the many approaches to study the gob environment. Several studies in the past have researched this topic and a general approach has been developed that addresses much of the complexity of the problem. The topic of research herein presents ...
Geçmişten Günümüze Hidrometalurji Hydrometallurgy Over The Years*, 2014 SelectedWorks
Geçmişten Günümüze Hidrometalurji Hydrometallurgy Over The Years*, Fathi Habashi
Thousands of years ago people had learned how to build furnaces and use fire to melt rocks and produce metals but the use of aqueous solutions for ore processing came much later, mainly at the time of the alchemists when acids and alkalies became known and used. Modern hydrometallurgy, however, can be traced back to the end of the 19th century when two major operations were discovered: the cyanidation process for gold and silver extraction and the Bayer process for bauxite treatment. Later, in the 1940s, a breakthrough came during the Manhattan Project in USA in connection with uranium extraction ...
Hydrometallurgy Over The Years (Geçmişten Günümüze Hidrometalurji), 2014 SelectedWorks
Hydrometallurgy Over The Years (Geçmişten Günümüze Hidrometalurji), Fathi Habashi
Binlerce yıl önce insanlar, nasıl fırın yapacaklarını, ayaçları eritmek için ateşi nasıl kullanacaklarını ve metalleri nasıl üreteceklerini öğrenmelerine rağmen, cevherlerin zenginleştirilmesinde çözeltilerin kullanımı, asit ve bazların öğrenilip kullanıldığı simyacılar dönemine rastlamaktadır. Bununla birlikte modern hidrometalurjinin başlangıcı, iki önemli prosesin keşfedildiği 19. yüzyılın sonlarına dayandırılabilir. Bu prosesler, altın ve gümüşün çözündürülmesi için siyanür liç prosesi ve boksit cevherlerinin değerlendirilmesi için geliştirilen Bayer prosesidir. Daha sonra, 1940’larda, uranyum zenginleştirilmesi ile ilgili olarak Manhattan Projesi (ABD) bir dönüm noktası olmuştur. O tarihten itibaren, hidrometalurji giderek ilerlemekte ve hatta bazı pirometalurjik proseslerin yerinialmaktadır. Bu süreçte Kanada’nın, özellikle uranyum, nikel, kobalt ve çinko ...
Development Of Industry Oriented Cfd Code For Analysis / Design Of Face Ventilation Systems, 2014 University of Kentucky
Development Of Industry Oriented Cfd Code For Analysis / Design Of Face Ventilation Systems, Todor P. Petrov
Theses and Dissertations--Mining Engineering
Two of the main safety and health issues recognized during deep cut coal mining are methane and dust hazards. Advances in continuous miner technology have improved safety and productivity. However, these advances have created some environmental problems, notably more dust and methane being generated at the face during coal extraction.
Results of studies performed in the last three decades concerning the face ventilation for deep cut mining showed very complicated airflow behavior. The specifics of flow patterns developed by the face ventilation systems presents significant challenge for analytical description even for equipment-free entry. Fortunately, there are methods, such as numerical ...
Status Of Communication And Tracking Technologies In Underground Coal Mines, 2014 University of Kentucky
Status Of Communication And Tracking Technologies In Underground Coal Mines, Alexander D. Douglas
Theses and Dissertations--Mining Engineering
In 2006, Congress passed the MINER Act requiring mine operators to submit an emergency response plan that included post-accident communications and tracking systems to MSHA within three years of the Act. These systems were required to be designed for maximum survivability after a catastrophic event, such as a fire or explosion, and to be permissible (meets MSHA criteria for explosion-proof). At that time, no commercially available systems existed that met these standards. Several companies undertook developing new, or enhancing existing, technologies to meet these requirements. This research presents the results of a study that was conducted to determine the present ...
Ultra Clean Coal Production Using Dense Medium Separation For The Silicon Market, 2014 University of Kentucky
Ultra Clean Coal Production Using Dense Medium Separation For The Silicon Market, Seyed Hassan Amini
Theses and Dissertations--Mining Engineering
The production of high quality silicon requires the use of ultraclean coal containing less than 1.5% ash. The magnetite used to clean the coal in a dense medium process is a contaminant that seriously impacts the quality of the final silicon product. As such, research has been conducted to evaluate the potential to substitute the magnetite with fine silica–based alternative material generated during the silicon production process. Dense medium cyclone tests were performed based on a statistically designed program to determine the optimum conditions that maximize organic efficiency and minimize probable error and low–density bypass. The results ...
Interview, 2013 SelectedWorks
Interview, Fathi Habashi
Translation of a Turkish interview published in MEi Online
Pyrite: The Strategic Mineral That Became An Industrial Nuisance, 2013 SelectedWorks
Pyrite: The Strategic Mineral That Became An Industrial Nuisance, Fathi Habashi
Pyrite, known since antiquity, had at one time a great strategic importance because it was the main raw material for making elemental sulfur for gun powder manufacture and for making SO2 for sulfuric acid production. However, when other sources of cheap elemental sulfur became available, pyrite not only lost its importance but became a nuisance for the metallurgical industry because of problems associated with its disposal. At present only pyrite-containing gold is treated by a variety of methods to recover gold.
Study On The Surface Chemistry Behavior Of Pyrochlore During Froth Flotation, 2013 Western University
Study On The Surface Chemistry Behavior Of Pyrochlore During Froth Flotation, Saeed Chehreh Chelgani
University of Western Ontario - Electronic Thesis and Dissertation Repository
Separation of pyrochlore from its associated minerals is typically accomplished by froth flotation. The surface chemistry of pyrochlore is similar to many of its associated non-value minerals. Therefore, understanding the surface chemical properties of the pyrochlore for selective pyrochlore flotation will potentially aid in the design of flotation strategies for optimized recovery. In this study, pyrochlore samples were collected from various points in the flotation scheme at the Niobec plant, Quebec, Canada. The SEM-EDX analysis revealed that pyrochlore from the Niobec deposit occurs as high and low iron varieties, and that recovery favours varieties with a lower Fe content. To ...
Energy, U.S. Department Of, 2013 Purdue University
Energy, U.S. Department Of, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Provides information about the U.S. Department of Energy (DOE) and its predecessor agencies and how DOE influences federal energy policy and scientific research in the western U.S.