·Keywords Metallurgical slags wet magnetic separation iron recovery Fine grained slags 1 INTRODUCTION During the steel making process the furnace steel FS and ladle steel LS slags originate as by products Contrary to blast furnace slags BFS to find the application of the steel slags is more difficult mainly due to higher variability
·According to them the higher recovery yield of the iron from steel slag is obtained on the slag slowly cooled This can be explained by increased amount and size of the crystalline phases and decreased glass matrix during the slow cooling of the liquid slag Study on steel furnace slags with high MgO as additive in Portland cement Cem
·The comprehensive consideration of climate warming and by product management in the iron and steel industry has a significant impact on the realization of environmental protection and green production Blast furnace slag BFS and steel slag SS collectively called iron and steel slags are the main by products of steelmaking The
·This work presents the iron oxide recovery from electric arc furnace slag with different temperature and time using acid leaching method The results showed that formation of iron oxide from
·Blast furnace slag BFS and steel slag SS collectively called iron and steel slags are the main by products of steelmaking the biomass can be completely pyrolyzed Table S5 shows the waste heat recovery of iron and steel slags by various chemical methods From the above studies in methane reforming and numerous gasification and
·Steel slag is a by product of the steelmaking process In fact each ton of steel produces 110 150 kg of steel slag China s steel slag reserves are more than 300 million tons and the annual hoard continues to increase [1] Due to the different steel composition scattered varieties of converter slag and complex composition exist which seriously limits the Chinese
·Steel slag from an electric arc furnace EAF may contain significant amounts of oxides of valuable metals The recovery of iron and other metals from the EAF slag using smelt reduction process
·A high iron recovery of % from SS has been demonstrated by magnetic separation [9] Low and high intensity magnetic separation techniques are used to recover high grade iron from LD slags In the former permanent magnets are used which is often unsuitable for separating fine paramagnetic particles
·Metallurgical slags are conventionally divided into ferrous and non ferrous based on the metal produced in each process The typical chemical composition and generation rate of various slags for the major metal manufacturing processes are provided in Table 1 Table seen the relative amount of slag produced per ton of iron/steel is lower than the non ferrous
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