The use of ammonium sulfate as an inhibitor of dioxin synthesis in iron ore sintering process

• Authors: Patrycja Łechtańska , Grzegorz Wielgosiński
• Languages of publication: EN

Abstracts

EN

The main air pollutants in the sintering process of iron ore are polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans (PCDD/Fs) and harmful dust. Ore sintering on sinter strands is one of the first technology steps in the ironworks. It is a process in which iron ore is crushed, subjected to annealing and mixed with appropriate additives, and then sintered in order to produce sinter which is the main component of iron in the blast furnace process. PCDD/Fs emissions were measured and the addition of ammonium sulfate as an inhibitor of the synthesis of dioxins in the sintering process of iron ore was studied.

PL

Do głównych substancji zanieczyszczających powietrze w procesie spiekania rud żelaza należą polichlorowane dibenzodioksyny i polichlorowane dibenzofurany (PCDD/PCDF), a także szkodliwe pyły. Spiekanie rud na taśmach jest jednym z pierwszych węzłów technologicznych huty o profilu surowcowym. Jest to proces, w którym ruda żelaza jest kruszona, poddawana wyżarzaniu i mieszana z odpowiednimi dodatkami, a następnie spiekana w celu otrzymania spieku, który stanowi główny składnik żelazowy w procesie wielkopiecowym. W aglomerowni wykonano pomiary emisji PCDD/Fs, a także badano dodatek siarczanu amonu jako inhibitora syntezy dioksyn w procesie spiekania rudy żelaza.

Keywords

EN

iron ore sintering; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; inhibitor; ammonium sulphate; de novo synthesis; emission reduction

PL

spiekanie rudy żelaza; polichlorowane dibenzo-p-dioksyny; polichlorowane dibenzofurany; inhibitor; siarczan amonu; synteza de novo; ograniczanie emisji

• Publisher: De Gruyter Open
• Journal: Ecological Chemistry and Engineering S
• Year: 2014
• Volume: 21
• Issue: 1
• Pages: 59-70

Dates

published

1 - 3 - 2014

online

9 - 4 - 2014

Contributors

author

Patrycja Łechtańska

• Faculty of Process and Environmental Engineering, Lodz University of Technology, ul. Wólczańska 175, 90-924 Łódź, Poland, phone [phone], fax [phone]

author

Grzegorz Wielgosiński

• Faculty of Process and Environmental Engineering, Lodz University of Technology, ul. Wólczańska 175, 90-924 Łódź, Poland, phone [phone], fax [phone]

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Identifiers

DOI

10.2478/eces-2014-0005