Extractive Metallurgy of NiobiumRoutledge, 13.11.2017 - 272 Seiten The growth and development witnessed today in modern science, engineering, and technology owes a heavy debt to the rare, refractory, and reactive metals group, of which niobium is a member. Extractive Metallurgy of Niobium presents a vivid account of the metal through its comprehensive discussions of properties and applications, resources and resource processing, chemical processing and compound preparation, metal extraction, and refining and consolidation. Typical flow sheets adopted in some leading niobium-producing countries for the beneficiation of various niobium sources are presented, and various chemical processes for producing pure forms of niobium intermediates such as chloride, fluoride, and oxide are discussed. The book also explains how to liberate the metal from its intermediates and describes the physico-chemical principles involved. It is an excellent reference for chemical metallurgists, hydrometallurgists, extraction and process metallurgists, and minerals processors. It is also valuable to a wide variety of scientists, engineers, technologists, and students interested in the topic. |
Inhalt
Chapter 1 | |
References | |
Chapter 2 | |
Sources and Reserves | |
Ore Extraction | |
Major Production Practices | |
References | |
Pollution Aspects in Chemical Processing | |
References | |
Chapter 4 | |
Summary | |
Chapter 5 | |
References | |
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Häufige Begriffe und Wortgruppen
addition alkali alloys aluminum applications aqueous phase atoms calcium carbide carbon carbonatite carbothermic cassiterite cathode chemical chloride columbite columbite-tantalite columbium complex composition compounds containing deoxidation deposits diagram ductile electrolyte electron beam melting electrorefining elements equilibrium extraction of niobium Extractive Metallurgy ferroniobium flotation flowsheet fluoride formation free energy furnace Gupta heat HSLA steels hydrofluoric acid hydrogen impurities ions iron leaching magnetic material minerals molten niobate niobium and tantalum niobium carbide niobium metal niobium oxide niobium pentachloride niobium pentoxide niobium-tantalum nitride nitrogen oxide oxygen particles pegmatites pentachloride potassium powder precipitation present pressure Proc production properties pure niobium purification pyrochlore rare earths reaction reactor recovery reduction of niobium reduction process refining refractory metals separation of niobium shown in Figure sintering sodium solid solubility solution solvent extraction sources steels sulfuric superalloys surface Symp tantalite Tantalum and Niobium techniques tin slags titanium treatment tungsten vacuum vanadium vapor zirconium