(184)Pyrrhotite Roasting. I. Experiments on Pyrrhotite Roasting
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چکیده
منابع مشابه
Coffee roasting acoustics.
Cracking sounds emitted by coffee beans during the roasting process were recorded and analyzed to investigate the potential of using the sounds as the basis for an automated roast monitoring technique. Three parameters were found that could be exploited. Near the end of the roasting process, sounds known as "first crack" exhibit a higher acoustic amplitude than sounds emitted later, known as "s...
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Research Center of Engineering and Applied Sciences (CIICAp), Autonomous University of Morelos State (UAEM); Av. Universidad No. 1001 Col. Chamilpa, C.P. 62210, Cuernavaca, Morelos, Mexico. Joint Research Unit Food Process Engineering (Cemagref, ENSIA, INAPG, INRA) ENSIA, 1 avenue des Olympiades, 91744 Massy Cedex France. c National Institute of Perinatology, Montes Urales 800, Lomas de Virreye...
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The roasting of sulphide ores and concentrates is often the first step in the production of metals or chemicals. In many processes, the production of sulphuric acid is viewed as a by-product, while in some plants production is an important economic factor. Regardless of the purpose, a pyrite roasting plant consists of mainly three plant sections: roasting, gas cleaning and sulphuric acid. With ...
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Colombian Arabica coffee beans were roasted to give light, medium, and dark samples. Their aqueous extracts were analyzed by gel filtration chromatography, UV-visible spectrophotometry, capillary electrophoresis, and the ABTS(*)(+) assay. A progressive decrease in antioxidant activity (associated mainly with chlorogenic acids in the green beans) with degree of roasting was observed with the sim...
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The possibility of selective leaching process was investigated during molybdenite flue dust leaching to recover its rhenium content. The results show that addition of alcohols to water makes the medium less favorable for molybdenum transfer into aqueous phase. On the other hand, addition of small amounts of alcohols (5-15%) makes a noticeable separation of rhenium over molybdenum, but by increa...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1950
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.53.371