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Author: J. Newton Friend Publisher: Forgotten Books ISBN: 9780332070612 Category : Science Languages : en Pages : 400
Book Description
Excerpt from Cobalt, Nickel, and the Elements of the Platinum Group Again, the platinum metals are so closely similar in many of their properties that it was decided to treat of their detection and estimation all together in Chapter X, rather than to deal with each separately at the end of the chapters dealing with their compounds, as has been done with cobalt and nickel, and, indeed, with the elements in the remaining volumes. The state of our knowledge of the chemistry of the platinum metals, although greatly improved during the last twenty years, is still far from satisfactory. This, no doubt, is due to a variety of reasons, such as the rarity of the metals, their consequently high cost, apd their similarity to one another, which renders their preparation in a state of purity an extremely arduous task. This latter feature is well exemplified by the efforts of Matthey to prepare pure iridium. His work is described in fair detail on pp. 235 - 236 of the text. Even after a most elaborate treatment the metal still contained traces of ruthenium and rhodium. In consequence of this difficulty, there can be no doubt that the early investigators frequently worked with a very impure metal, and this may in some measure account for discrepancies and apparent contradictions in their results. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: J. Newton Friend Publisher: Forgotten Books ISBN: 9780332070612 Category : Science Languages : en Pages : 400
Book Description
Excerpt from Cobalt, Nickel, and the Elements of the Platinum Group Again, the platinum metals are so closely similar in many of their properties that it was decided to treat of their detection and estimation all together in Chapter X, rather than to deal with each separately at the end of the chapters dealing with their compounds, as has been done with cobalt and nickel, and, indeed, with the elements in the remaining volumes. The state of our knowledge of the chemistry of the platinum metals, although greatly improved during the last twenty years, is still far from satisfactory. This, no doubt, is due to a variety of reasons, such as the rarity of the metals, their consequently high cost, apd their similarity to one another, which renders their preparation in a state of purity an extremely arduous task. This latter feature is well exemplified by the efforts of Matthey to prepare pure iridium. His work is described in fair detail on pp. 235 - 236 of the text. Even after a most elaborate treatment the metal still contained traces of ruthenium and rhodium. In consequence of this difficulty, there can be no doubt that the early investigators frequently worked with a very impure metal, and this may in some measure account for discrepancies and apparent contradictions in their results. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Frank Crundwell Publisher: Elsevier ISBN: 0080968104 Category : Technology & Engineering Languages : en Pages : 623
Book Description
This book describes and explains the methods by which three related ores and recyclables are made into high purity metals and chemicals, for materials processing. It focuses on present day processes and future developments rather than historical processes. Nickel, cobalt and platinum group metals are key elements for materials processing. They occur together in one book because they (i) map together on the periodic table (ii) occur together in many ores and (iii) are natural partners for further materials processing and materials manufacturing. They all are, for example, important catalysts – with platinum group metals being especially important for reducing car and truck emissions. Stainless steels and CoNiFe airplane engine super alloys are examples of practical usage. The product emphasises a sequential, building-block approach to the subject gained through the author’s previous writings (particularly Extractive Metallurgy of Copper in four editions) and extensive experience. Due to the multiple metals involved and because each metal originates in several types of ore – e.g. tropical ores and arctic ores this necessitates a multi-contributor work drawing from multiple networks and both engineering and science. Synthesizes detailed review of the fundamental chemistry and physics of extractive metallurgy with practical lessons from industrial consultancies at the leading international plants Discusses Nickel, Cobalt and Platinum Group Metals for the first time in one book Reviews extraction of multiple metals from the same tropical or arctic ore Industrial, international and multidisciplinary focus on current standards of production supports best practice use of industrial resources
Author: J Newton B 1881 Friend Publisher: Palala Press ISBN: 9781359711489 Category : Languages : en Pages :
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Friend J. Newton (John Newton) Publisher: Wentworth Press ISBN: 9780526337941 Category : History Languages : en Pages : 392
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Friend J Newton (John Newton) Publisher: ISBN: 9781298310286 Category : Languages : en Pages : 394
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: K. J. Schulz Publisher: Geological Survey ISBN: 9781411339910 Category : Industrial minerals Languages : en Pages : 868
Book Description
As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.
Author: J. Newton Friend
Author: J. Newton Friend
Author: John Newton Friend
Author: Frank Crundwell
Author: John Newton Friend
Author: Frank Crundwell
Author: J Newton B 1881 Friend
Author: Friend J. Newton (John Newton)
Author: Friend J Newton (John Newton)
Author: J. Newton Friend
Author: K. J. Schulz