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The effect of oxidizing PTMS magnetic separation is better with longer time
published date: 2024/2/13

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Oxidation PTMS magnetic separation method is a strong oxidizing agent, which oxidizes pyrite in reducing state into water-soluble ferrous ions in water medium. At the same time, the dark organic matter is oxidized, making it a colorless oxide that can be washed away. The oxidants used in the oxidation process are sodium hypochlorite, hydrogen peroxide, potassium permanganate, chlorine gas, ozone and so on.

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The effect of iron removal by oxidation is related to the pH value of the medium, and also affected by the ore characteristics, temperature, dosage of chemicals, pulp concentration, bleaching time and other factors. Effect of pulp concentration. When the dosage of chemical is constant, the bleaching effect of PTMS magnetic separation decreases with the decrease of pulp concentration. If the concentration is too high, because the product is not washed, too many residual pharmaceutical ions after filtration will also affect the product performance.

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Effect of bleaching time. The longer the PTMS magnetic separation time, the better the effect of iron removal, the reaction speed is very fast at the beginning, and then more and more slow, reasonable and economic bleaching time needs to be determined through the test. With the development of science and technology, the whiteness of kaolin is more and more demanded by ceramic industry and other industrial departments, and chemical iron removal bleaching method will be more widely used.
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SILICA SAND PTMS magnetic separation 20240213

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