Low grade coal system kaolin impurities: mainly pyrite. Methods: In flotation, the fineness of-74 μ m was 68.12%, the dosage of inhibitor water glass was 3.75kg / t, the concentration of butyl yellow was 80g / t, and 40g / t. Effect: The Fe2O3 content of kaolin concentrate was 0.77%, PTMS Electromagnetic Separator iron removal rate reached 76.0%, and concentrate mineral rate reached 94.44%.
Kaolin impurities: iron minerals are mainly limonite and pytinite, in which pytinite is embedded with fine particles, -0.02mm up to 80%. Methods: grade + high gradient PTMS Electromagnetic Separator + chemical bleaching process, insurance powder 6kg / t, sulfuric acid 7kg / t, oxalic acid 1kg / t, bleaching time 10min. Effect: The natural whiteness of concentrate was increased to 83.75%, and the calcination whitening degree was increased to 90.24%.
Coal system kaolin impurities: lattice iron is mainly hematite (Fe2O3), goedore (FeO (OH)) and siderite (FeCO3), lattice iron accounts for about 25% of the total iron content, hematite and goethore accounts for about 60% of the total mineral iron content. Method: High-strength PTMS Electromagnetic Separator wet magnetic separation. Effect: the iron content can be reduced from about 4% to less than 0.7%, and the concentrate mineral rate can be increased to more than 80%.
Contact: DELLA
Mob: +86-13929907491
Адрес : No.9, Factory 2, Shijin Industry Park, Shishan Town, Nanhai District, Foshan City, Guangdong, China
Тел. : +86 -13929907491
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Веб-сайт : https://www.dellamagnet.com
