The Rare Earth Elements

This book deals with the rare earth elements (REE), which are a series of 17 transition metals: scandium, yttrium and the lanthanide series of elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, ...

Author: J.H.L. Voncken

Publisher: Springer

ISBN: 3319268074

Category: Science

Page: 127

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This book deals with the rare earth elements (REE), which are a series of 17 transition metals: scandium, yttrium and the lanthanide series of elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium). They are relatively unknown to the wider public, despite their numerous applications and their critical role in many high-tech applications, such as high-temperature superconductors, phosphors (for energy-saving lamps, flat-screen monitors and flat-screen televisions), rechargeable batteries (household and automotive), very strong permanent magnets (used for instance in wind turbines and hard-disk drives), or even in a medical MRI application. This book describes the history of their discovery, the major REE ore minerals and the major ore deposits that are presently being exploited (or are planned to be exploited in the very near future), the physical and chemical properties of REEs, the mineral processing of REE concentrates and their extractive metallurgy, the applications of these elements, their economic aspects and the influential economical role of China, and finally the recycling of the REE, which is an emerging field.
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Extractive Metallurgy of Rare Earths

It provides a complete and usable survey of the rare earth resources, extraction, and production of numerous end products that translates to both laboratory and industrial settings. This book is a source of industry expertis

Author: Nagaiyar Krishnamurthy

Publisher: CRC Press

ISBN: 9780203413029

Category: Science

Page: 537

View: 747

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Extractive Metallurgy of Rare Earths compiles information from scattered sources that is often available only to specialists. It provides a complete and usable survey of the rare earth resources, extraction, and production of numerous end products that translates to both laboratory and industrial settings. This book is a source of industry expertis
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Rare Earth Elements and Their Minerals

This book describes the recent evolution of rare earth elements and their mineralogy, both natural and synthetic analogues.

Author: Michael Aide

Publisher: BoD – Books on Demand

ISBN: 9781789847406

Category: Technology & Engineering

Page: 102

View: 767

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This book describes the recent evolution of rare earth elements and their mineralogy, both natural and synthetic analogues. Authors review and document rare earth element chemistry in the aqueous environment and the petrology of the rare earth element-bearing mineral Allanite. Synthetic rare earth minerals and their applications is a rapidly evolving discipline important to medicine, advanced digital technologies, and solid-state physics. Authors report on the synthesis of a macrocyclic gadolinium complex and also gadolinium complexes and their applications in medicine. Authors present compelling advances in gadolinium isotopes and oxides as substrates for induced excitation and luminescent material sciences.
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Mineralogy And Geology of Rare Earths in China

The aim of this book is to present recent achievements of in rare earth elements geology and mineralogy studies in China.

Author: Zhang Peishan

Publisher: VSP

ISBN: 9067642207

Category: Science

Page: 256

View: 441

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The aim of this book is to present recent achievements of in rare earth elements geology and mineralogy studies in China. The authors systematically describe all rare earth minerals and rare earth ore deposits discovered in China and their geological features. These rare earth minerals include huanghoite and baotite from China, as well as rare earth minerals from other parts of the world and new species and varieties discovered in China. For each mineral a systematic description of classification is given, such as chemical composition, crystallography and crystal structure, physical properties, X-ray powder data.
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Rare Earth Minerals

30% discount for members of The Mineralogical Society of Britain and Ireland Rare Earth Minerals presents a current overview of this geologically and industrially important group of minerals.

Author: A.P. Jones

Publisher: Springer Science & Business Media

ISBN: 0412610302

Category: Science

Page: 402

View: 626

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30% discount for members of The Mineralogical Society of Britain and Ireland Rare Earth Minerals presents a current overview of this geologically and industrially important group of minerals. It presents a wide variety of formats, crystal structures, petrographic descriptions, analytical data and numerous illustrations from outcrop photos to SEM pictures and crystallographic models.
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Lasers and Excited States of Rare Earths

The possibility of stimulated light emission was discussed by Einstein in 1917, eight years before the quantum-mechanical description of energy levels of many-electron systems.

Author: Renata Reisfeld

Publisher: Springer

ISBN: 3642666981

Category: Science

Page: 228

View: 349

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The possibility of stimulated light emission was discussed by Einstein in 1917, eight years before the quantum-mechanical description of energy levels of many-electron systems. Though it is imperative to use samples having optical properties greatly different from the stan dard continuous spectrum of opaque objects ("black body" radia tion) it is not always necessary to restrict the study to monatomic entities. Thus, spectral lines can be obtained (in absorption and in emission) from lanthanide compounds, containing from one to thir teen 4f electrons going from trivalent cerium to ytterbium, that are nearly as sharp as the ones from gaseous atoms. However, the presence of adjacent atoms modifies the simple picture of an isolated electron configuration, and in particular, it is possible to pump excited levels efficiently by energy transfer from species with intense absorption bands, such as the inter-shell transitions of other lanthanides and of thallium(I), lead(II) and bismuth(III) or the electron transfer bands of the uranyl ion or other complexes. On the other hand, it is possible to diminuish the mUlti-phonon relaxation (competing with sharp line luminescence) by selecting vitreous or crystalline materials with low phonon energies. Obviously, one cannot circumvent the conservation of energy by lasers, but they may have unprecedented consequences for the future by allowing nuclear fusion of light elements, effects of non-linear optics and time-resolved spectroscopy, besides the more conventional applications of coherent light beams with negligible angular extension.
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Handbook on the Physics and Chemistry of Rare Earths

Each chapter is a comprehensive, up-to-date, critical review of a particular segment of the field. The work offers the researcher and graduate student a complete and thorough coverage of this fascinating field.

Author: J.-C. G. Bünzli

Publisher: Newnes

ISBN: 9780444626950

Category: Science

Page: 550

View: 241

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The rare earths represent a group of chemical elements, the lanthanides, together with scandium and yttrium, which exhibit similar chemical properties. They are strategically important to developed and developing nations because they have several applications in catalysis, the defense industry, aerospace, the materials and life sciences and in sustainable energy technologies. The Handbook on the Physics and Chemistry of the Rare Earths is a continuing authoritative series that deals with the science and technology of the rare earth elements in an integrated manner. Each chapter is a comprehensive, up-to-date, critical review of a particular segment of the field. The work offers the researcher and graduate student a complete and thorough coverage of this fascinating field. Individual chapters are comprehensive, broad, critical reviews Contributions are written by highly experienced, invited experts Gives an up-to-date overview of developments in the field
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