The Metallurgy of Lead: And the Desilverization of Base Bullion (Classic Reprint) - Couverture souple

H. O. Hofman

Couverture souple

ISBN 10 : 1330706188 ISBN 13 : 9781330706183

Editeur : Forgotten Books, 2018

Synopsis

The digital edition of all books may be viewed on our website before purchase. Excerpt from The Metallurgy of Lead: And the Desilverization of Base Bullion (Classic Reprint)



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A propos du livre

Présentation de l'éditeur

Since the last revision of my treatise, The Metallurgy of Lead and theD esilverization of Base Bullion, physical and chemical research has given precision to the knowledge of the properties of lead, its alloys and compounds, and of many metallurgical reactions; the character of the ores treated has changed; blast roasting has revolutionized the details of the treatment of lead ores; the recovery of values from intermediary products has been modified; the ordinary practice of desilverization of lead bullion has been altered and in part supplemented by electrolysis. In undertaking to prepare a new edition it was found that by far the larger part of the book had to be rewritten, and the remainder altered to a considerable extent. The present work has become a new book. It retains only the chapters dealing with reverberatory smelting of lead ores and with German cupellation in about their original forms. While the smelting of sulphide lead ores in the reverberatory furnace has become absolete with the advent of blast roasting, the treatment of the intermediary products of a refinery in the furnace has grown in importance. It seemed advisable to retain this chapter which, in addition to the chemistry of the processes, contains much information of practical value. The reason that prompted the retention of German cupellation was that cupellation as a process can not be studied satisfactorily withE nglish cupellation, which has become the general method of working. The parts dealing with receiving, weighing, and sampling of ores have been omitted, as they have been thoroughly discussed elsewhere. Since 1892 I have reviewed annually in theM ineral Industry the progress that has been made in the metallurgy of lead and lead-silver, and have thus remained in touch with what is going on in this branch of metallurgy. As a study of the technical literature is insufficient
(Typographical errors above are due to OCR software and don't occur in the book.)

Détails de l'édition

• Éditeur: Forgotten Books
• Date d'édition: 2018
• Langue: anglais
• ISBN 10: 1330706188
• ISBN 13: 9781330706183
• Reliure: Broché
• Nombre de pages: 630
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