THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING
Many pyrometallurgical, hydrometallurgical and combined processes have been developed to allow better utilization of steelmaking dusts. The dusts contain metals and compounds that can harm the processes and one of these elements is zinc that is present in the flue dusts as zincite ZnO and franklinit...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SciCell s.r.o.
2013-09-01
|
| Series: | Acta Metallurgica Slovaca |
| Subjects: | |
| Online Access: | https://journals.scicell.org/index.php/AMS/article/view/47 |
| _version_ | 1818081597460578304 |
|---|---|
| author | Jari Aromaa Istvan Galfi Anna Stefanova Olof Forsén |
| author_facet | Jari Aromaa Istvan Galfi Anna Stefanova Olof Forsén |
| author_sort | Jari Aromaa |
| collection | DOAJ |
| description | Many pyrometallurgical, hydrometallurgical and combined processes have been developed to allow better utilization of steelmaking dusts. The dusts contain metals and compounds that can harm the processes and one of these elements is zinc that is present in the flue dusts as zincite ZnO and franklinite ZnFe2O4. The effect of alkaline roasting on the dissolution of stainless steel flue dusts in acid and alkaline leaching was studied. The extraction of zinc from EAF dust was not significantly improved in alkaline leach (40 – 50 %) but there was indication of better extraction in acid leach (over 90 %). No improvement in extraction from AOD dust was seen either in alkaline (max. 58 %) or acid leach (max. 72 %). The acid leach of synthetic ferrite resulted in less than 32 % Zn recovery, and this must be studied further to find out the effect of franklinite in the dusts. |
| first_indexed | 2024-12-10T19:08:44Z |
| format | Article |
| id | doaj.art-2b39cc323ff34b57b574e7d3ca0bc34e |
| institution | Directory Open Access Journal |
| issn | 1335-1532 1338-1156 |
| language | English |
| last_indexed | 2024-12-10T19:08:44Z |
| publishDate | 2013-09-01 |
| publisher | SciCell s.r.o. |
| record_format | Article |
| series | Acta Metallurgica Slovaca |
| spelling | doaj.art-2b39cc323ff34b57b574e7d3ca0bc34e2022-12-22T01:36:49ZengSciCell s.r.o.Acta Metallurgica Slovaca1335-15321338-11562013-09-0119310.12776/ams.v19i3.158THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHINGJari AromaaIstvan GalfiAnna StefanovaOlof ForsénMany pyrometallurgical, hydrometallurgical and combined processes have been developed to allow better utilization of steelmaking dusts. The dusts contain metals and compounds that can harm the processes and one of these elements is zinc that is present in the flue dusts as zincite ZnO and franklinite ZnFe2O4. The effect of alkaline roasting on the dissolution of stainless steel flue dusts in acid and alkaline leaching was studied. The extraction of zinc from EAF dust was not significantly improved in alkaline leach (40 – 50 %) but there was indication of better extraction in acid leach (over 90 %). No improvement in extraction from AOD dust was seen either in alkaline (max. 58 %) or acid leach (max. 72 %). The acid leach of synthetic ferrite resulted in less than 32 % Zn recovery, and this must be studied further to find out the effect of franklinite in the dusts.https://journals.scicell.org/index.php/AMS/article/view/47processingrecyclingstainless steel dustroastingleaching |
| spellingShingle | Jari Aromaa Istvan Galfi Anna Stefanova Olof Forsén THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING Acta Metallurgica Slovaca processing recycling stainless steel dust roasting leaching |
| title | THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING |
| title_full | THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING |
| title_fullStr | THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING |
| title_full_unstemmed | THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING |
| title_short | THERMAL TREATMENT OF STAINLESS STEEL DUSTS FOR LEACHING |
| title_sort | thermal treatment of stainless steel dusts for leaching |
| topic | processing recycling stainless steel dust roasting leaching |
| url | https://journals.scicell.org/index.php/AMS/article/view/47 |
| work_keys_str_mv | AT jariaromaa thermaltreatmentofstainlesssteeldustsforleaching AT istvangalfi thermaltreatmentofstainlesssteeldustsforleaching AT annastefanova thermaltreatmentofstainlesssteeldustsforleaching AT olofforsen thermaltreatmentofstainlesssteeldustsforleaching |