Process for de-dusting waste gases

In a process for de-dusting the waste gases from ore, sintering and/or pelleting systems, in which the dusts are subjected, at least partially, to a wet-chemical preparation, and the waste process water is subjected to cleaning, the gases to be cleaned are washed (scrubbed) with a washing liquid 1 w...

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Hauptverfasser:	RAPTIS SOTIRIOS. DR.TECHN, WOISETSCHLAEGER GERALD, FUERSCHUSS HARALD
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator	RAPTIS SOTIRIOS. DR.TECHN WOISETSCHLAEGER GERALD FUERSCHUSS HARALD
description	In a process for de-dusting the waste gases from ore, sintering and/or pelleting systems, in which the dusts are subjected, at least partially, to a wet-chemical preparation, and the waste process water is subjected to cleaning, the gases to be cleaned are washed (scrubbed) with a washing liquid 1 with a pH between 0 and 10, in particular 1 and 10, the slurrying 6, 7 of the dusts being set to a pH between 3 and 5, especially about 3.5, and the solid materials being filtered off 1, following which the filtrate is subjected to precipitation 12, 13 of heavy metals, particularly sulphide precipitation, at a pH between 4 and 12 and the precipitate is filtered off 16.
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subjects	CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title	Process for de-dusting waste gases
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