SID.ir SULFUR REMOVAL FROM IRON ORE CONCENTRATE BY LEACHING
MAGNETITE IRON ORE CONCENTRATE WERE CHOSEN FOR THE STUDY. LABORATORY RESULTS ARE PRESENTED HERE. THESE RESULTS SHOW THAT MORE THAN 90 OF THE TOTAL SULFUR CONTENT CAN BE REMOVED FROM IRON ORE CONCENTRATE BY CHEMICAL LEACHING. THE BACKGROUND FOR THE PROCESS CONCEPT AND A SUMMARY OF THE RESULTS ARE PRESENTED BELOW.
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Removal of sulfur and phosphorous from iron ore concentrate
The current study was focused on the removal of sulfur from iron ore concentrate using chemical leaching technique. Magnetite iron ore concentrate was chosen for this purpose. The results obtained
REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC IRON ORE
The present study is devoted to improvement of the leaching efficiency during phosphorous removal from high phosphorous gravitymagnetic concentrate. Before leaching the concentrate has been subjected to roasting with the addition of either Ca OH 2. or CaO. The oolitic iron ore is roasted at 900 C for one hour.
Leaching Copper: Iron form Electrolyte
This fresh acid solution not only removed some more of the iron from the ore but also picked up the iron which had been precipitated from the first solution used. This second solution now high in iron was circulated until it was nearly neutral when it was replaced by fresh solution carrying 4 to 4.5 per cent free acid which completed the leach.
Enhancement of PyroHydrometallurgical Technology of
Brown iron ore constitutes about 13 of the global ore reserves and is widespread throughout the world. Brown iron ore is characterized by a significant content of harmful phosphorus 0.7 to 3.0 which is typically present in the lattice of the main iron ore component in a chemically bound form. Based on the case study of the gravitymagnetic concentrate from the Lisakovsk field OJSC
Leaching residue of nickeliferous laterites as a source of
During the past 20 years the Laboratory of Metallurgy of NTUA has been developing a novel method of hydrometallurgical processing of laterites based on heap leaching of the ore with dilute sulphuric acid. Nickel is recovered from the pregnant leach liquor by solvent extraction and electrowinning.
Atmospheric pressure leaching of nickel from a lowgrade
downstream operations for iron removal Chang et al. 2016 . Further studies were carried out to reduce the residual acid concentration and decrease the iron content by multistep leaching techniques Liu et al. 2004 Liu and Krebs 2006 . Another strategy to reduce the large amount of acid without jeopardizing nickel recovery was to
MULTISTAGE DILUTE ACID LEACHING OF A MEDIUM GRADE IRON ORE TO
supply of iron ore super concentrates to the Aladja Steel Midrex plant necessitates further studies to upgrade these iron ore deposits. Hence the aim of this research work is to upgrade the Koton Karfe iron ore from these deposits to a superconcentrate through multistage leaching using dilute hydrochloric acid. 2.