Another efficient process is the "grading-sieving-PTMS MAGNETIC SEPARATOR synergistic process", which is particularly suitable for hard kaolin or ore bodies with high sand content. During the acid leaching stage, dilute acid is used to dissolve non-magnetic oxides such as hematite and ilmenite. Subsequently, oxidation bleaching is performed to eliminate the grayish-black color caused by organic matter.
The PTMS MAGNETIC SEPARATOR co-processing system first employs a hydrocyclone for size classification, retaining fine kaolin particles (2μm) that are economically valuable due to their kaolinite content. Coarse particles then enter a multi-stage reverse flotation system. By adjusting pH levels and reagent formulations, this process prioritizes the flotation of silica-alumina impurities such as quartz and feldspar, achieving effective sand removal and purification. After implementing this solution at a mining operation, the concentrate's Al₂O₃ content increased from 28% to 36%, while Fe₂O₃ levels decreased below 0.5%, with a recovery rate reaching 82%.
Through low-temperature calcination (600-750℃) to remove hydroxyl water, PTMS MAGNETIC SEPARATOR iron removal improves whiteness and stability. After the implementation of this integrated process in a large kaolin base, the comprehensive iron removal rate exceeds 95%, and the product whiteness reaches 92.3%, fully meeting the high-grade ceramic glaze standards.
Contact: DELLA
Mob: +86-13929907491
Адрес : No.9, Factory 2, Shijin Industry Park, Shishan Town, Nanhai District, Foshan City, Guangdong, China
Тел. : +86 -13929907491
Эл. адрес : sales@ptmsmagnet.com
Веб-сайт : https://www.dellamagnet.com
