Magnetic separation is a common method for processing low-grade iron ore, removing naturally occurring magnetic iron from nonmagnetic materials, with reduction roasting followed by magnetic separation showing promise for recovering iron values. In this study, hematite ore was processed by crushing, grinding, sieving, and dividing the samples into two groups. The first group consisted of samples for reduction (roasting), where 50g of the ore were mixed with coal in proportions of 0,25 inside a crucible, placed inside an electrical furnace at a temperature of 700°C for 60 min, and then separated magnetically. The second group consisted of samples that were magnetically separated. As the results of the first group showed, the iron grade increased from 30,36 % Fe to 60,12 % Fe, and the recovery reached 84,31 %, with a noticeable decrease in the percentage of impurities. As for the second group, the iron grade increased from 30,36 % Fe to 45,08 % Fe, and the recovery was 75,22 %. From the results, noticed that the results of the first group were higher than those of the second group. Therefore, it was concluded that magnetic reduction (roasting) increased the magnetic susceptibility of hematite and thus increased the grade and recovery, so the final concentrate can be used for the processes necessary to create iron and steel suitable for the necessary industrial requirements

This research investigates the corrosion inhibition capabilities of BCAA-derived inhibitors for low-carbon steels and dead mild carbon steels with distinct carbon contents when exposed to a 1M HCL solution. The effectiveness of the inhibitors was evaluated by measurements of weight loss and polarization. The study revealed that at a concentration of 10 grams, the weighing method showed that the BCAA inhibitor showed protection effectiveness (87 percent) at 313 K for low carbon steel and (89 percent) effectiveness at 303 K for dead carbon steel. Using a concentration of 15 g, the polarization method showed inhibitory activity of (96 percent) at 313 K for low-carbon steel and (96 percent) at 303 K for dead light carbon steel. These results indicate that the inhibition efficiency is affected by the carbon content. Samples were subjected to scanning electron microscopy (SEM) and optical microscope analysis before and after adding the inhibitor. When examined using FTIR spectroscopy, BCAA showed significant efficiency as a corrosion inhibitor for steel alloys immersed in acidic conditions