Engineering Commons^™

Decisive Battles In Levant, Fathi Habashi

Fathi Habashi

The Levant has been a battle ground since ancient times. The Battle of Kadesh took place in 1274 BC showed the supremacy of iron in war, in the Battle of Yarmouk in 636 AD the Arabs entered the Middle East, in Hittin in 1187 Saladin defeated the Crusaders, in Ein Jalut in 1260 Baibars saved Egypt from destruction by the Mongol, in Marj Dabiq in 1516 the Ottomans opened the way to occupy Egypt and the Middle East, while in World War I General Allenby of the British Empire entered Jerusalem in 1917 thus marking the beginning of the end …

Iron Pigments Through The Ages, Fathi Habashi

Fathi Habashi

Hydrometallurgy In The Past Decades. A Personal View, Fathi Habashi

Fathi Habashi

In the 1940s hydromtallurgy benefitted a great deal from Manhattan Project in USA, then in the 1950s a new technology was introduced by Sherritt-Gordon Mines in association with the Mines Branch in Ottawa to treat ores with ammonia under pressure and to precipitate metals from solution by hydrogen under pressure. Since then hydrometallurgy has made great progress as evidenced by the number of conferences held to discuss this topic. A personal view of these developments with those involved is given.

Hydrometallurgy. A Personal View. Interview, Fathi Habashi

Fathi Habashi

Metallurgical Chemistry, Fathi Habashi

Fathi Habashi

Metallurgical chemistry is the most ancient science of chemistry. It is related to the recovery of metals from ores and their refining. In its modern form, it involves separation of finely ground minerals by flotation, melting of ores, aqueous processing of ores, and the application of electric current to separate and purify metals from aqueous solution or from a fused salt. Metallurgical chemistry is closely related to the chemical industry.

Hydrometallurgy Of Phosphate Rock And The Recovery Of Uranium, Fathi Habashi

Fathi Habashi

Phosphate rock of sedimentary origin contains on the average 0.01 % uranium. Since large tonnage of this rock is used annually to produce fertilizers, this represented an important potential source of uranium. Before the discovery of rich uranium deposits this source was developed on industrial scale. The production of phosphoric acid by sulfuric acid process is at present facing the problem of disposal of gypsum; about 1.5 tons of gypsum is produced per ton of rock processed. This material contains all the radium originally present in the rock which results from the radioactive decay of uranium. As a result, phospho-gypsum …

A Short History Of Uranium, Fathi Habashi

Fathi Habashi

Mining And Civilization, Fathi Habashi

Fathi Habashi

Sir Walter Raleigh And Tar Sands, Fathi Habashi

Fathi Habashi

Petroleum is sometimes ejected from underground to form lakes contaminated with rocks. The volatile components evaporate with time leaving behind a solid mixture known as asphalt or tar sands. Lake Asphalt in Trinidad contains about 40% bitumen. Sir Walter Raleigh (ca 1554 –1618) sailed to Trinidad in search of El Dorado but he discovered the lake instead.

Movement Of Scientists And The Production Of Aluminum, Fathi Habashi

Fathi Habashi

Story Of Metals, Fathi Habashi

Fathi Habashi

Chemical Technology Of Ore Processing, Vladco Panayotov, Fathi Habashi, Marinela Panayotova

Fathi Habashi

A combined effort of authors from different countries with different background. The book is in 8 chapters: 1.Introduction 2.Energy Basis of Flotation 3.Pyrometallurgy 4.Basics of Minerals Dissolution and Leaching 5.Hydrometallurgy 6.Electrometallurgy 7.Application of Methods of Extractive Metallurgy to Different Ores 8.Environment Pollution Problems in the Mineral Processing Industry

De Re Metallica. A Metallurgist On The Move, Fathi Habashi

Fathi Habashi

De Re Metallica is a diary of the trips the author has undertaken during his professional career. He visited many industries, universities, research centers, and museums, and participated in many conferences. The book in 5 520 pages and many coloured photos therefore reflects the state of extractive metallurgy since he left his home country Egypt and went to study in Vienna then emigrated to Canada.

Joseph William Mellor (1869-1938) - - A Pioneer Ceramicist, Fathi Habashi

Fathi Habashi

A New Process To Upgrade Ilmenite To Synthetic Rutile, Fathi Habashi

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 …

Chemical Beneficiation Of Phosphate Rock, Fathi Habashi

Fathi Habashi

Phosphate producers could eliminate flotation plants and waste by adopting well-established hydrometallurgical processes and using dilute nitric or hydrochloric acid to leach phosphate from rock.

Energy Economy In Extractive Metallurgy, Fathi Habashi

Fathi Habashi

Fuel, heat, and electricity are costly items in metallurgical processes and should be used with great efficiency to decrease production costs. To this end, the recent trend in metallurgical plants is focused towards the following goals: • Increased use of heat recovery systems • Increased use of oxygen instead of air • Increased use of direct heating systems • Improved equipment design• Improved process design • Improved methods of operation • Improved process design • Improved methods of operation • Attempts to economize energy in the aluminum industry industry

San Marcos University, Lima, Peru, Fathi Habashi

Fathi Habashi

Pressure Hydrometallurgy, Fathi Habashi

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, Fathi Habashi

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, Fathi Habashi

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

Metalurjiye Adanmış Bir Hayat, Fathi Habashi

Fathi Habashi

Interview

Evidence Of The Existence Of Cathodic And Anodic Zones During The Leaching Of Minerals And Metals, Fathi Habashi

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.

Hydrometallurgy Over The Years (Geçmişten Günümüze Hidrometalurji), Fathi Habashi

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 kazanımı ile …

Geçmişten Günümüze Hidrometalurji Hydrometallurgy Over The Years*, Fathi Habashi

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. …

Gold In Egypt. A Historical Introduction, Fathi Habashi

Fathi Habashi

Pyrite: The Strategic Mineral That Became An Industrial Nuisance, Fathi Habashi

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.

Altin Metalurji̇si̇nde Yeni̇ Geli̇şmeler, Fathi Habashi

Fathi Habashi

Travelling In Cuba, Fathi Habashi

Fathi Habashi

Contact with Cuban scientists was established in 1986 when two researchers from Centro de Investigaciones para Industria Minero Metalurgica in Havana visited Laval University to get acquainted with research activities in the area of extractive metallurgy. This was followed in early 1987 by two more researchers from the same centre. Invitations were then received in late 1987, 1989, and 2008 to visit the nickel refineries in Cuba and to hold seminars at the University of Havana. The present report outlines these activities.

59 Articles, Fathi Habashi

Fathi Habashi

Metal ions play an essential role in the functioning of all biological systems. They interact with charged and polar groups of all biopolymers. The study of structural and functional properties of metal binding proteins is an important area of modern physical and chemical biology. Metal cations and metal binding proteins are involved in all crucial cellular activities. Many pathological conditions are correlated with abnormal metal metabolism. Encyclopedia of Metalloproteins is a key resource that provides basic, accessible, and comprehensible information about this expanding field.