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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Publication de 4  numéros par an

ISSN Imprimer: 1093-3611

ISSN En ligne: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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PROCESS ACHIEVEMENT FOR THE TREATMENT BY TRANSFERRED ARC OF FLY ASHES FROM WASTE INCENERATORS BY ON LINE MEASUREMENT OF HEAVY METAL EVAPORATION

Volume 5, Numéro 2, 2001, 14 pages
DOI: 10.1615/HighTempMatProc.v5.i2.40
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RÉSUMÉ

This study is about the destruction of fly ashes from waste incineration. It is performed in a laboratory sized plasma reactor (Power 30 kW). It concerns the treatment of a waste model substance by a transferred arc plasma (stabilized by an argon flow) in order to understand how different volatile components evaporate. The preparation of the model substance from a zeolite matrix impregnated with lead or zinc salts (sulfates, nitrates and chlorides) is described. The lead, zinc and chlorine evaporation is especially studied by following one of their atomic lines by an ICP control on-line analysis system, which allows to measure the metal concentration in the exhaust gas, and determine the end of the treatment: typically less than 10 minutes for an initial load of 70 g. The resulting materials are an inert glass in the graphite crucible and condensed materials on the cold wall of the reactor. The lead and zinc concentrations, measured in the glass by X-ray fluorescence, are lower than 10 ppm for a full treatment, while zinc and lead are present in the condensed materials as oxides or chlorides if chlorine is present in the matrix. For an argon plasma, the type of lead or zinc salts, the arc current, the arc length, the bath temperature and the additives to reduce the viscosity of the slag are the studied parameters.

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