Zobrazeno 1 - 10
of 76
pro vyhledávání: '"J. E. Dutrizac"'
Autor:
J E Dutrizac, Alba Sunyer
Publikováno v:
Canadian Metallurgical Quarterly. 51:11-23
The hydrothermal conversion of K jarosite, Pb jarosite, Na jarosite, Na–Ag jarosite, AsO4 containing Na jarosite and in situ formed K jarosite and Na jarosite to hematite was investigated. Potassium jarosite is the most stable jarosite species. Its
Autor:
T. T. Chen, J. E. Dutrizac
Publikováno v:
Mining, Metallurgy & Exploration. 25:156-164
The behavior of gold in a conventional copper electrorefinery anode slimes treatment process is expounded on in this study. In the raw anode slimes generated in a copper electrorefinery, gold occurs mainly as tiny particles of metallic gold, which ar
Publikováno v:
Environmental Geology. 52:1019-1031
Static tests typically are used in the initial stage of environmental assessments to predict the potential for acid mine drainage, and also are used to monitor waste disposal at active mining operations. The neutralization potential (NP) of 19 sedime
Publikováno v:
JOM. 58:41-44
The scanning-electron microscopy and high-resolution x-ray computed tomography of siliceous silver ore fragments revealed that the ore consists almost entirely of porous masses of quartz. The quartz contains numerous pores with sizes ranging from
Autor:
J. E. Dutrizac, T. T. Chen
Publikováno v:
Metallurgical and Materials Transactions B. 36:33-42
Jarosite precipitation is a useful means of stabilizing toxic species, and accordingly, the factors affecting the precipitation of chromium(III) in jarosite-type compounds was systematically investigated in a series of laboratory experiments. Althoug
Autor:
J. E. Dutrizac, T. T. Chen
Publikováno v:
JOM. 56:48-52
Publikováno v:
Journal of Environmental Quality. 32:2373-2378
To assess quantitatively the effect of peroxide addition to standard static tests of the neutralization potential (NP) of mine wastes, 10 specimens of carbonate minerals, including five of siderite (FeCO 3 ) and two of rhodochrosite (MnCO 3 ), were a
Publikováno v:
Environmental Geology. 43:1-17
The acid-generating potential of rocks depends on their sulfur content and neutralization potential (NP). Fifty-five "monomineralic" samples have been assessed for their NP contributions and for the effect of compositional variations in mineral serie
Proceedings of a symposium sponsored by the Hydrometallurgy and Electrometallurgy Committee and the Materials Characterization Committee of the Extraction and Processing Division of TMS (The Minerals, Metals & Materials Society) Held during the TMS 2
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 18:105-145
The technical literature on the solvent extraction and ion exchange recovery of iron from zinc sulphate-sulphuric acid processing media was reviewed to identify technologies which might lead to marketable iron products. The solvent extraction literat