Download e-book for iPad: Applied mineralogy in the mining industry by William Petruk

By William Petruk

ISBN-10: 0444500774

ISBN-13: 9780444500779

Thoughts of acting utilized mineralogy investigations, and functions and features of lately constructed tools for measuring mineral homes are explored during this publication meant for working towards utilized mineralogists, scholars in mineralogy and metallurgy, and mineral processing engineers. the advantages of utilized mineralogy are offered through the use of in-depth utilized mineralogy experiences on base steel ores, gold ores, porphyry copper ores, iron ores and business minerals as examples. The bankruptcy on base steel ores contains a dialogue at the results of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- at the recoveries of sphalerite, galena and chalcopyrite. The bankruptcy on gold discusses numerous equipment of opting for the amounts of gold in numerous minerals, together with 'invisible' gold in pyrite and arsenopyrite, in order that a stability of the distribution of gold one of the minerals should be calculated. This booklet additionally discusses the jobs of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes at the moment used and proposed equipment of remediation of acidic drainage.

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The surface coatings on particles can affect flotation, and in gold ores can contribute to a loss of gold. The effect of surface coatings on particles was studied by Kim et al. (1995) to determine why base metal concentrators that produce Cu, Pb and Zn concentrates lose some Zn to the Cu and Pb concentrates. They analysed sphalerite particles by ToF-LIMS analysis and found that some of the sphalerite particles in the Pb-Cu rougher cell were coated with slightly more lead than average sphalerite particles, and these coated sphalerite particlesfloatedand were recovered in the Pb-Cu concentrate, rather than being rejected to the Pb-Cu tails.

The major ones include cathodoluminescense, which differentiates minerals that have specific luminescence properties, and infra-red, which detects the presence of OH, SO, etc. cations in minerals. An emerging technique is laser ablation, inductively coupled plasma, mass spectrometry (LA-ICP-MS). 001 and 8 ppm, depending upon the spot size of the ablation laser. Many techniques and equipment that are used for performing mineral analyses, and are standard in many laboratories, are not discussed here because most are well known, some are discussed by Jones (1987), and some are becoming obsolete.

In contrast the analysed amount of apparently liberated mineral obtained by analysing unsieved samples by the area method seems to be close enough to the liberation of the mineral in the total sample to be used routinely in an operational setting. It is significant that the liberation models should be applied only to data that have been obtained from polished sections that are truly representative of the sample. , or if the image analysis data are not representative of the true particle population, no stereological method has a chance of correcting the data accurately, and could make the data worse (Fandrich et al.

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Applied mineralogy in the mining industry by William Petruk

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