Structural Changes in Copper Slags During Slow Cooling
The objects of the study were converter slags from the Balkhash copper plant in their initial state and after heat treatment. Using mineralogical and X-ray phase analysis, scanning electron microscopy (SEM), and electron probe microanalysis (EPMA), it was found that the initial converter slag and it...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/14/10/1187 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850204671737593856 |
|---|---|
| author | Bulat Sukurov Sergey Kvyatkovskiy Sultanbek Kozhakhmetov Anastassiya Semenova Maral Dyussebekova Marina Kvyatkovskaya |
| author_facet | Bulat Sukurov Sergey Kvyatkovskiy Sultanbek Kozhakhmetov Anastassiya Semenova Maral Dyussebekova Marina Kvyatkovskaya |
| author_sort | Bulat Sukurov |
| collection | DOAJ |
| description | The objects of the study were converter slags from the Balkhash copper plant in their initial state and after heat treatment. Using mineralogical and X-ray phase analysis, scanning electron microscopy (SEM), and electron probe microanalysis (EPMA), it was found that the initial converter slag and its thermally treated samples have identical matrices with almost complete coincidence in mineral and phase compositions. The distinguishing feature is the quantitative ratio of mineral components in the slag mass. Almost all of the iron is oxidized and present in the form of fayalite, magnetite, and magnetite, with other elements (silicon, copper, zinc, and aluminum) incorporated into its lattice. The structure of all slag samples indicates an association of sulfur exclusively with copper. Copper in the slags was identified in both metallic and sulfide forms. Slow cooling of the converter slag after its remelting contributes to the reduction in the sulfide–metal suspension in the volume of the melt and its coarsening. During slow cooling, structural changes occur not only in the main oxide part of the slag but also in the polymetallic globules. |
| format | Article |
| id | doaj-art-21547365d7dd4ebbb66b3e56115bd544 |
| institution | OA Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-21547365d7dd4ebbb66b3e56115bd5442025-08-20T02:11:15ZengMDPI AGMetals2075-47012024-10-011410118710.3390/met14101187Structural Changes in Copper Slags During Slow CoolingBulat Sukurov0Sergey Kvyatkovskiy1Sultanbek Kozhakhmetov2Anastassiya Semenova3Maral Dyussebekova4Marina Kvyatkovskaya5Institute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty 050013, KazakhstanInstitute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty 050013, KazakhstanInstitute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty 050013, KazakhstanInstitute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty 050013, KazakhstanInstitute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty 050013, KazakhstanInstitute of Metallurgy and Ore Beneficiation, Satbayev University, Almaty 050013, KazakhstanThe objects of the study were converter slags from the Balkhash copper plant in their initial state and after heat treatment. Using mineralogical and X-ray phase analysis, scanning electron microscopy (SEM), and electron probe microanalysis (EPMA), it was found that the initial converter slag and its thermally treated samples have identical matrices with almost complete coincidence in mineral and phase compositions. The distinguishing feature is the quantitative ratio of mineral components in the slag mass. Almost all of the iron is oxidized and present in the form of fayalite, magnetite, and magnetite, with other elements (silicon, copper, zinc, and aluminum) incorporated into its lattice. The structure of all slag samples indicates an association of sulfur exclusively with copper. Copper in the slags was identified in both metallic and sulfide forms. Slow cooling of the converter slag after its remelting contributes to the reduction in the sulfide–metal suspension in the volume of the melt and its coarsening. During slow cooling, structural changes occur not only in the main oxide part of the slag but also in the polymetallic globules.https://www.mdpi.com/2075-4701/14/10/1187metallurgical slagsdepletion of slagsslow coolingmicrostructurepolymetallic globuleshigh-dynamic formation of Pb microdroplets |
| spellingShingle | Bulat Sukurov Sergey Kvyatkovskiy Sultanbek Kozhakhmetov Anastassiya Semenova Maral Dyussebekova Marina Kvyatkovskaya Structural Changes in Copper Slags During Slow Cooling Metals metallurgical slags depletion of slags slow cooling microstructure polymetallic globules high-dynamic formation of Pb microdroplets |
| title | Structural Changes in Copper Slags During Slow Cooling |
| title_full | Structural Changes in Copper Slags During Slow Cooling |
| title_fullStr | Structural Changes in Copper Slags During Slow Cooling |
| title_full_unstemmed | Structural Changes in Copper Slags During Slow Cooling |
| title_short | Structural Changes in Copper Slags During Slow Cooling |
| title_sort | structural changes in copper slags during slow cooling |
| topic | metallurgical slags depletion of slags slow cooling microstructure polymetallic globules high-dynamic formation of Pb microdroplets |
| url | https://www.mdpi.com/2075-4701/14/10/1187 |
| work_keys_str_mv | AT bulatsukurov structuralchangesincopperslagsduringslowcooling AT sergeykvyatkovskiy structuralchangesincopperslagsduringslowcooling AT sultanbekkozhakhmetov structuralchangesincopperslagsduringslowcooling AT anastassiyasemenova structuralchangesincopperslagsduringslowcooling AT maraldyussebekova structuralchangesincopperslagsduringslowcooling AT marinakvyatkovskaya structuralchangesincopperslagsduringslowcooling |