While conventional PTMS ELECTROMAGNETIC SEPARATOR methods demonstrate effective iron removal, they face challenges in extreme alkaline conditions (when NaOH concentration exceeds 20%). In such scenarios, certain amphoteric metals like aluminum and zinc may react to form [Al(OH)₄]⁻ or [Zn(OH)₄]²⁻ complexes, which can compromise the purity of target products. Furthermore, high-concentration alkaline solutions exhibit strong corrosive effects on equipment, particularly causing severe alkali embrittlement in materials such as carbon steel and standard stainless steel.
Material selection is critical for PTMS ELECTROMAGNETIC SEPARATOR equipment. It is recommended to use 316L stainless steel, nickel-based alloy (Inconel 600), or reaction vessels lined with polytetrafluoroethylene (PTFE) to ensure long-term operational safety. From an environmental perspective, the generated ferric hydroxide sludge is classified as hazardous waste and must undergo stabilization treatment before being safely landfilled or utilized as resources.
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PTMS ELECTROMAGNETIC SEPARATOR, as a device for recycling metal resources from iron ore, converts the recovered metals into iron oxide pigment (α-Fe₂O₃) through calcination, which is used in the coatings industry. The entire process embodies the concept of "green chemistry" achieving both impurity removal and resource recycling while protecting the environment.
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How to efficiently recycle PTMS MAGNETIC SEPARATOR to reduce costs and improve efficiency
