PTMS ELECTROMAGNETIC SEPARATOR optimization of kaolin pretreatment and post-treatment
published date: 2025/8/19
industrial magnetic separator
The pre-treatment at the process front and post-treatment at the end equally determine the overall effectiveness of PTMS ELECTROMAGNETIC SEPARATOR. As a novel pre-dispersion equipment, electromagnetic PTMS ELECTROMAGNETIC SEPARATOR applies periodic shear forces to the pulp through alternating electromagnetic fields. This effectively breaks the mechanical encapsulation or chemical adsorption between iron minerals and kaolinite, enabling complete monomer liberation and creating ideal conditions for subsequent magnetic separation.
PTMS ELECTROMAGNETIC SEPARATOR
Field tests demonstrate that electromagnetic PTMS ELECTROMAGNETIC SEPARATOR pretreatment can enhance the Fe₂O₃ removal efficiency in superconducting magnetic separation by an additional 15-20%. In the subsequent calcination process, precise temperature control proves critical. Excessive temperatures (>900°℃) may cause kaolinite to undergo dehydroxylization and form mullite, which not only depletes aluminum resources but also introduces new crystalline phases that negatively impact product performance.
what is magnetic separation in chemistry?
Therefore, we recommend implementing a staged temperature control program: The first phase (500-600°℃) for dehydration and the second phase (700-800°℃) for crystallization. Throughout the process, nitrogen gas is maintained as the protective atmosphere to inhibit the oxidation of Fe²⁺ into the more chromogenic Fe³⁺, thereby maximizing pigment whiteness retention. A high-end coating production line utilizing the PTMS ELECTROMAGNETIC SEPARATOR process achieved stable whiteness above 94%, resulting in a 30% premium product value.
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