Download EMC ’91: Non-Ferrous Metallurgy—Present and Future by Jean Vereecken PDF

By Jean Vereecken

This quantity includes the papers that may be awarded at 'EMC '91 '-the ecu Metals Conference-to be held in Brussels, Belgium, from 15 to twenty September 1991, and arranged through Benelux Metallurgie, GDMB (Gesellschaft Deutscher Metallhutten­ und Bergleute) and IMM (the establishment of Mining and Metallurgy). 'EMC '91' is the 1st of an meant significant sequence prepared on the eu point with the purpose of bringing jointly all those people who are concerned with the extraction and processing of non-ferrous metals-European metallurgists and their foreign colleagues-to offer them with the chance to switch perspectives at the country and evolution in their undefined. The programme covers the entire diversified facets of the metallurgy of non-ferrous metals from mining to fabricated items. specific realization is being paid to the ecu non -ferrous with recognize to alterations well-liked, the know-how used, pressures at the setting and the aggressive place of brands. The contributions of the plenary teachers (copies of with the intention to seem within the IMM magazine Minerals overseas in 1991-92) and the various authors are gratefully stated. thank you also are as a result of the referees of the papers, the sponsors, the firms that experience allowed registrants to go to their operations, the chairmen of the technical periods and the staffs of the organizing our bodies for his or her effective administrative paintings. Jean Vereecken Chairman, Organizing Committee July 1991 v Contents Foreword. . . . . . . . . . . . . . . . . . . . .. . . v .

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EMC ’91: Non-Ferrous Metallurgy—Present and Future

This quantity includes the papers that might be awarded at 'EMC '91 '-the ecu Metals Conference-to be held in Brussels, Belgium, from 15 to twenty September 1991, and arranged via Benelux Metallurgie, GDMB (Gesellschaft Deutscher Metallhutten­ und Bergleute) and IMM (the establishment of Mining and Metallurgy).

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Extra resources for EMC ’91: Non-Ferrous Metallurgy—Present and Future

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Their working ratios have been improved for the last ten years in particular for coke rate, lead bullion output, manpower and energy per ton. This, and the well known flexibility of this kind of furnace with regard to raw materials, allow them to increase its competitivity. In addition, this process has also to comply with the challenge of environmental regulations in particular for dust and S02 emissions. The major target is the treatment of sintering offgases. It will be reached in the near future due to specific investments.

14 ist deutlich der EinfluB der kumentation mit dem Iststand effektiv verglichen werden. Zusatzlich ist uber eine Rechnerschnittstelle in der Koordinatorstation 8 und eine Modemstrecke ein VAX-Rechner angebunden. In dieser Bleibadh6he uber den Dusen auf das Reduktionsergebnis zu entnehmen. Die Ursa chen hierfur sind in einem Warme- und Stofftransportproblem zu sehen. Vergleicht man system fur das vorhandene Rechnerprogramm ver- Blei und die entsprechende Schlacke, so fallt die deutlich schlechtere Warmeleitfahigkeit der Schlacke auf.

Bei der Verwendung von Erdgas als Reduktionsmittel sind die Verhaltnisse ahnlich. Bezuglich der lokalen Kuhleffekte und ihre moglichen Folgen beim direkten Einblasen ins Schlackenbad laufen die Auswirkungen dramatischer ab, denn der thermische Zerfall nach CH4 = C + 2 H2 hat einen hohen Warmebedarf, der durch die partielle Oxidation nach CH 4 + 0,5 O2 = CO + 2 H2 aufgrund der relativ schlechten Warmeaustauschbedingungen im Schlack en bad lokal nicht ausgeglichen werden kann. Betriebliche Beobachtungen bestatigen dies.

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