Zobrazeno 1 - 10
of 22
pro vyhledávání: '"James E. Hoffmann"'
Autor:
James E. Hoffmann
Publikováno v:
Metallurgical and Materials Transactions B. 43:431-439
With the continuous reduction in the availability of extractive metallurgical curricula in colleges and universities, the concern has in part been from where will the next generation of extractive metallurgists come? One objective of this article is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71076ebea5c434ba58c2318913831e2c
https://doi.org/10.1007/s11663-011-9624-0
https://doi.org/10.1007/s11663-011-9624-0
Autor:
James E. Hoffmann
Publikováno v:
JOM. 56:30-33
The phrase “purification of copper refinery electrolyte” is misleading since typically, impurities are controlled by withdrawing a bleedstream of the circulating electrolyte. However, solvent extraction and ion exchange have also found some appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd9d4940f39d85ee0065f0a98dda500a
https://doi.org/10.1007/s11837-004-0088-4
https://doi.org/10.1007/s11837-004-0088-4
Autor:
James E. Hoffmann
Publikováno v:
JOM. 54:24-27
Haring Cell technology, as embodied in the Flowing Haring Cell, provides a simple, reliable, inexpensive, and accurate method for the monitoring of cathode polarization. Sampling size is large and continuous at 1 liter per minute, providing instantan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6efc0c6641f7636614f4e42e808974b
https://doi.org/10.1007/bf02701652
https://doi.org/10.1007/bf02701652
Autor:
James E. Hoffmann
Publikováno v:
JOM. 44:43-48
This article characterizes electronic scrap in terms of origin and composition and describes the steps in preliminary processing: sorting, calcination, combustion, shredding, and sampling. Hydrometallurgical and pyrometallurgical process technologies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76723d4572cd6026fd4513f2812c9f7b
https://doi.org/10.1007/bf03222275
https://doi.org/10.1007/bf03222275
Autor:
James E. Hoffmann
Publikováno v:
JOM. 43:18-23
The broad field of extractive metallurgy, often perceived as an unimportant point of light in the universe of technology, has undergone significant, fundamental changes in the past 30 years. Improved extraction technologies now permit greater metal r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47b522ae589e0ed5b6bb2bf53b3bdd6f
https://doi.org/10.1007/bf03220539
https://doi.org/10.1007/bf03220539
Autor:
James E. Hoffmann
Publikováno v:
JOM. 42:50-54
This article briefly describes the classical processes of dore furnacing and refining and identifies the major problems and costs associated with these methods. The process chemistry of the wet chlorination of slimes is then described, followed by an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c92915bb09747ce5ae4557a264f60049
https://doi.org/10.1007/bf03221055
https://doi.org/10.1007/bf03221055
Publikováno v:
Kirk-Othmer Encyclopedia of Chemical Technology
Tellurium is the most metallic of the abundant chalogens. In many of its chemical properties, it still resembles oxygen, sulfur, and selenium. More than 90% of tellurium is produced from anode slimes collected from electrolytic copper refining, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f7154682e43bdf4e5c2822ea5bda9ef
https://doi.org/10.1002/0471238961.2005121208150606.a01
https://doi.org/10.1002/0471238961.2005121208150606.a01
Autor:
James E. Hoffmann
Publikováno v:
JOM. 46:10-11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23eb5b00cb29bf548678de4207fe3622
https://doi.org/10.1007/bf03222598
https://doi.org/10.1007/bf03222598