Change search
ReferencesLink to record
Permanent link

Direct link
Experimental studies on treatment and recycling of pickling sludge generated in stainless steel production
Luleå tekniska universitet.
2001 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Pickling sludge generated in the stainless steel industries contains large amounts of calcium fluoride and water and relatively small amounts of metals. Therefore, such sludge is difficult to be directly recycled back to the EAF process and would be harmful to the environment if deposited as landfill for a long term. The main objective of the present thesis work is to find out proper ways to treat the pickling sludge and to recover useful metals from it. For this, characterisations, solid-state reduction and smelting reduction tests on the pickling sludge were carried out in the laboratory. Likewise, comparison studies on solid-state reduction of pure metal oxides with graphite and on pickling sludge with p-coke were conducted using TGA. In addition, the off-gas generated by smelting reduction of pickling sludge was monitored by measurements with a mass spectrometer. Through the present thesis study it can be concluded that it is possible to treat and recycle pickling sludge by using both solid-state reduction and smelting reduction methods. In order to completely separate the reduced metals from the sludge, the smelting reduction method would be preferred.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2001. , 31 p.
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757 ; 2001:57
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-18242Local ID: 794bdd50-d177-11db-a0b9-000ea68e967bOAI: oai:DiVA.org:ltu-18242DiVA: diva2:991249
Note
Godkänd; 2001; 20070313 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved

Open Access in DiVA

fulltext(29816 kB)3 downloads
File information
File name FULLTEXT01.pdfFile size 29816 kBChecksum SHA-512
927204ef9db81bd50e537470d5156f3dd96ba6bd20ba2911f3330f8b34fc805b5288e4d924dbb5bab02d936bd4a39cea98cede1733246c56dfcf292c06361915
Type fulltextMimetype application/pdf

Search outside of DiVA

GoogleGoogle Scholar
Total: 3 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 2 hits
ReferencesLink to record
Permanent link

Direct link