Download e-book for kindle: Rare Earths: Science, Technology, Production and Use by Jacques Lucas

By Jacques Lucas

ISBN-10: 0444627359

ISBN-13: 9780444627353

High-technology and environmental purposes of the rare-earth components (REE) have grown dramatically in variety and significance over the last 4 many years. This e-book offers a systematic knowing of infrequent earth homes and makes use of, current and destiny. It additionally issues how to effective recycle of the infrequent earths in end-of-use items and effective use of infrequent earths in new products.

Scientists and scholars will have fun with the books method of the provision, constitution and houses of infrequent earths and the way they've got ended in myriad severe makes use of, current and destiny. specialists can buy this booklet to get an built-in photograph of creation and use (present and destiny) of infrequent earths and the technological know-how at the back of this photograph. This publication will turn out beneficial to.non-scientists to boot for you to get an built-in photo of creation and use of infrequent earths within the 21st Century, and the technology in the back of this picture.

  • Defines the chemical, actual and structural houses of infrequent earths.
  • Gives the reader a simple figuring out of what infrequent earths can do for us.
  • Describes makes use of of every infrequent earth with chemical, physics, and structural motives for the houses that underlie these uses.
  • Allows the reader to appreciate how infrequent earths behave and why they're utilized in current purposes and may be utilized in destiny applications.
  • Explains to the reader the place and the way infrequent earths are stumbled on and produced and the way they're top recycled to reduce environmental influence and effort and water consumption.

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Extra resources for Rare Earths: Science, Technology, Production and Use

Example text

3 MINING Mining of these deposits is done by open pit methods, see Fig. 1. Material is blasted from the pit walls and trucked up to the surface for upgrading and further processing. Two types of material are distinguished in the pit—rare earth-rich ore and rare earth-lean waste. They are trucked up separately. The ore is sent forward for concentration and then for chemical rare earth element extraction. The waste is sent to a waste dump. The ore and waste are often distinguished in-pit by hand-held portable X-ray fluorescence analyzers (Thermo, 2013).

They are all mined by surface mining techniques. Bastnasite-monazite igneous ores are concentrated by froth flotation removal of waste rock before being sent to chemical rare earth leaching/purification/separation plants for pure individual rare earth compound production. Monazite beach sands are upgraded by gravity/electrostatic/magnetic waste rock removal techniques before being sent to a rare earth leaching/purification/separation plant for individual pure rare earth compound production. Rare earths are recovered from cation adsorption clays by (i) aqueous ammonium sulfate leaching; (ii) rare earth carbonate precipitation, and sometimes (iii) precipitate References oxidation.

V. All rights reserved. 31 32 CHAPTER 3 Mining and Rare Earth Concentrate Production FIG. 1 Rare earth mine near Laverton, Western Australia. Notice the 55-m-deep open pit mine. The road into and out of the mine is at the bottom of the photograph. Photograph courtesy of Gloria Rodgers, Lynas Corporation, Inc. 3 MINING Mining of these deposits is done by open pit methods, see Fig. 1. Material is blasted from the pit walls and trucked up to the surface for upgrading and further processing. Two types of material are distinguished in the pit—rare earth-rich ore and rare earth-lean waste.

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Rare Earths: Science, Technology, Production and Use by Jacques Lucas


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