recycling of iron slag

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  Carbothermal reduction of copper smelter slag for recycling …

  201761 · The secondary slag hardness is lower than that in Case 2 but still quite high. Therefore, it is concluded that Case 1, in which lower flux additions and lower temperature are employed, is better suited for recycling of the initial slag into pig iron and secondary slag phase by achieving desired properties of the two products.

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  Utilization (recycling) of iron and steel industry by ... - Springer

  20131019 · Due to exponential growing in urbanization and industrialization, byproducts from industries are becoming an increasing concern for recycling and waste management. Ground granulated blast furnace slag (GGBS) is by-product from the blast-furnaces of iron and steel industries. GGBS is very useful in the design and development …

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  Carbon mineralization of steel and iron-making slag: Paving …

  202441 · In particular, the annual amounts of iron slag and steel slag globally generated were estimated to be 390 Mt and 290 Mt, respectively, in 2022. ... Given its composition, rolling mill scale sludge has a substantial iron content, making it suitable for iron recovery or recycling processes [89]. Its iron content makes this sludge a valuable ...

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  Production, characterisation, utilisation, and beneficial soil ...

  2021105 · The iron-making and steel-making industries produce four types of slags, named after the processes from which they are produced (Fig. 2): Blast Furnace Slag (BFS), Basic-Oxygen Furnace Slag (BOFS), Electric-Arc Furnace Slag (EAFS), and Ladle Furnace Slag (LFS), and the type of slag produced is dependent on the desired steel endpoint …

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  Cleaner recycling of iron from waste copper slag by using …

  2019420 · DOI: 10.1016/J.JCLEPRO.2019.01.184 Corpus ID: 159445541; Cleaner recycling of iron from waste copper slag by using walnut shell char as green reductant @article{Zhou2019CleanerRO, title={Cleaner recycling of iron from waste copper slag by using walnut shell char as green reductant}, author={Shiwei Zhou and Yong-gang Wei …

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  Solutions to the Converter Slag Recycling Problem in …

  202177 · Microstructure of 0–0.4 mm fraction converter slag: (a) inclusions of metallic iron with dimensions of 0.06 and 0.18 mm, ×200, (b) inclusions of metallic iron with dimensions of 0.03 and 0.31 mm, ×100. Full size image. Steelmaking slag is used in blast-furnace charges at a number of foreign enterprises.

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  Modification of industrial BOF slag: Formation of MgFe2O4 and recycling ...

  2017415 · The iron element in electric arc furnace (EAF) slag is extremely difficult to recycle due to the low specific magnetic susceptibility of the RO phase (a solid solution of FeO, MgO, CaO, and MnO).

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  Slag design and optimization for iron capturing platinum ...

  2023425 · Production of petrochemical catalysts accounts for one of the largest shares of platinum group metals (PGMs) consumption; thus, recycling of spent petrochemical catalysts holds great economic value. Conventionally, PGMs are recovered through hydrometallurgical processes which have a low recovery efficiency and produce a …

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  Direct reduction of copper slag using rubber seed oil as a …

  2022820 · The reduction reaction of copper slag is mainly the reaction of C, CO, CH 4, and H 2 in copper slag with high-valent iron (bivalent iron and trivalent iron) according to equations (2)−(11). The reduction of CH 4 is cracking to generate CO and H 2, and the CO and H 2 reduce the iron in the copper slag (Gong et al., 2021).

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  Precise recovery of highly-purified iron phosphate from …

  Different decommissioned lithium iron phosphate (LiFePO 4) battery models and various recycling technologies resulted in lithium extraction slag (LES) with multiple and complex compositions, necessitating ongoing experimentation and optimization to recover iron phosphate (FePO 4).This work proposes a one-step precise selective precipitation …

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