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Browsing by Author "Von Wolff, WTE"

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Determination of quartz and pyrites in coal for comparison with their abrasive properties

Author: Von Wolff, WTE Date: 1969 Three coal samples, with abrasiveness indices of 533, 779 and 142 iron eroded, respectively, were heated 350 C in a current of air to remove carbonaceous material. Read more
Fluorescence X-ray spectrometric analyses of coal ash

Author: Copeman, JH ; Von Wolff, WTE Date: 1968 The present study was undertaken to establish to what extent the method could be applied to analysis of coal ashes. Read more
Investigation of minerals in coal, shales and magnetites by the X-Ray diffraction method

Author: Copeman, JH ; Von Wolff, WTE Date: 1965 Because of the effect of inorganic impurities on the utilization of coal, it was decided to carry out a survey on the minerals present in production samples from different mines. Read more
Measurement of the magnetic properties of magnetite according to the Twin Isthmus method

Author: Von Wolff, WTE ; Kessler, IIM Date: 1966 This report discusses the measurement of the magnetic properties of magnetic according to the Twin Isthmus method. Read more
The quantitative determination of quartz by means of x-ray diffraction methods

Author: Copeman, JH ; Von Wolff, WTE Date: 1968 When certain component, in a mixture with other components, has to be determined in a sample, one cannot directly compare line intensities of the pure component, proposed under identical conditions as the sample, because of the absorption ... Read more
Report on magnetic analysis of a magnetite ore sample received from the Wankie colliery company, Limited, Rhodesia

Author: Von Wolff, WTE ; Kesslers, IM Date: 1966 This work was done at the request of Messrs Anglo American Corporation of S.A Limited, and reports on the magnetic analysis of a magnetite ore sample received from the Wankie colliery company, Limited, Rhodesia. Read more

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Browsing by Author "Von Wolff, WTE"

Browsing by Author "Von Wolff, WTE"

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