Online Characterization of Interharmonics and Harmonics of AC Electric Arc Furnaces by Multiple Synchronous Reference Frame Analysis

The processing of waste powders from steel production in electric arc furnaces is a world problem. The presence of Fe, Zn, Cd, Pb, etc. in the powders makes them a valuable source for these metals. Zinc is the metal that is most often utilized, which leads to reduction of environmental pollution. The greatest problem in this connection is the presence of chlorine and fluorine in the powders, which influences the electroextraction of zinc in a significantly negative way. The presented paper shows the results from the study of the possibilities for zinc leaching from powders obtained in the steel production in Bulgaria. A detailed characterization of the powders was made using chemical analysis, XRD, DTA and TGA and M?ssbauer spectroscopy. The results from the powder leaching with different solvents give the reason to recommend a technological scheme for the complete and total processing of the waste powders from steel production.

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Chemical characterization of dust particles recovered from bag filters of electric arc furnaces for steelmaking: Some factors influencing the formation of hexachlorobenzene

Journal of Hazardous Materials ◽

10.1016/j.jhazmat.2010.06.122 ◽

2010 ◽

Vol 183 (1-3) ◽

pp. 116-124 ◽

Cited By ~ 27

Author(s):

Naoto Tsubouchi ◽

Hiroyuki Hashimoto ◽

Noriaki Ohtaka ◽

Yasuo Ohtsuka

Keyword(s):

Chemical Characterization ◽

Electric Arc ◽

Dust Particles ◽

Electric Arc Furnaces ◽

Arc Furnaces ◽

Factors Influencing

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Utilization of zinc in powders from electric arc furnaces in steel production

Journal of Mining and Metallurgy Section B Metallurgy ◽

10.2298/jmmb0901015b ◽

2009 ◽

Vol 45 (1) ◽

pp. 15-22 ◽

Cited By ~ 3

Author(s):

B.S. Boyanov ◽

T.B. Baev

Keyword(s):

Chemical Analysis ◽

Environmental Pollution ◽

Steel Production ◽

Electric Arc ◽

Technological Scheme ◽

Detailed Characterization ◽

Electric Arc Furnaces ◽

Valuable Source ◽

Arc Furnaces

The processing of waste powders from steel production in electric arc furnaces is a world problem. The presence of Fe, Zn, Cd, Pb, etc. in the powders makes them a valuable source for these metals. Zinc is the metal that is most often utilized, which leads to reduction of environmental pollution. The greatest problem in this connection is the presence of chlorine and fluorine in the powders, which influences the electroextraction of zinc in a significantly negative way. The presented paper shows the results from the study of the possibilities for zinc leaching from powders obtained in the steel production in Bulgaria. A detailed characterization of the powders was made using chemical analysis, XRD, DTA and TGA and M?sbauer spectroscopy. The results from the powder leaching with different solvents give the reason to recommend a technological scheme for the complete and total processing of the waste powders from steel production.

Download Full-text