wet drum magnetic separator

Subsequently, pyrite undergoes the following reaction under the action of bacterial enzyme systems (such as sulfur oxidase and iron oxidase): FeS₂ + 7/2 O₂ + H₂O → Fe²⁺ + 2SO₄²⁻ + 2H⁺. The generated Fe²⁺ is further oxidized into Fe³⁺, which possesses stronger oxidizing capacity to accelerate pyrite dissolution, thereby facilitating the iron removal process in the PTMS MAGNETIC SEPARATION process.

PTMS MAGNETIC SEPARATION

The biological leaching process lasted 72-96 hours, with an automated pH control system maintaining acidic conditions throughout. Iron ion concentrations were monitored through periodic sampling. After implementing the PTMS MAGNETIC SEPARATION process at a kaolin processing plant, the pyrite content in raw ore decreased from 0.8% to 0.12%, total iron (TFe) levels dropped by approximately 60%, and whiteness increased by over 6 percentage points.

what is magnetic separation in kaolin ？

Notably, the microbial PTMS MAGNETIC SEPARATION method eliminates the need for chemical reagents like chlorides and oxalates. After neutralization and sedimentation, the tailings water becomes reusable while meeting discharge standards for both COD levels and heavy metal ions. Furthermore, researchers have engineered bacterial strains through genetic modification to enhance their aluminum tolerance and cold adaptability, ensuring sustained high activity in kaolin's complex mineral environment.

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