The acid-enhanced PTMS MAGNETIC SEPARATOR complexation method achieves deep iron removal through two coordinated steps: First, surface-attached iron oxides are dissolved using hydrochloric acid or sulfuric acid to generate soluble FeCl₃ or Fe₂(SO₄)₃. Subsequently, a strong chelating agent (ethylenediaminetetraacetic acid, EDTA) is introduced to form stable water-soluble complexes with Fe³⁺, preventing re-precipitation. These complexes can be further separated through ion exchange or extraction processes, ultimately achieving complete iron removal.
A high-purity quartz sand manufacturer has implemented an acid leaching-PTMS MAGNETIC SEPARATOR complexation process. Through three-stage countercurrent acid washing combined with EDTA complexation treatment, the product's iron content has been reduced from an initial 50ppm to below 0.5 ppm, achieving world-leading standards. This technology is particularly suitable for highly acidic environments and features a recyclable complexing agent, aligning with green manufacturing principles.
Due to poor biodegradability, the technology requires accompanying wastewater treatment facilities, which limits its application in environmentally sensitive areas. The adsorption filtration PTMS MAGNETIC SEPARATOR iron removal method is suitable for purifying low-concentration iron-containing water sources such as groundwater, drinking water, or industrial reclaimed water. Its core mechanism involves using adsorbents like activated alumina, zeolite, and iron-manganese oxide-coated sand to capture Fe²⁺/Fe³⁺ through surface complexation or ion exchange mechanisms.
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