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What qualifies as tin ingot raw material, and how is it processed?

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What qualifies as tin ingot raw material, and how is it processed?

October 30, 2025
Aktueller Firmenfall über What qualifies as tin ingot raw material, and how is it processed?
What qualifies as tin ingot raw material, and how is it processed?
 
  • ​Primary Sources:​
    • ​Tin concentrate (cassiterite, SnO₂)​​ → Smelted into ​​99.5%–99.8% crude tin​​ → Refined to ​​high-purity ingots​​.
    • ​Recycled tin (secondary smelting)​​ from scrap solder, e-waste, or alloys.
  • ​Processing Steps:​
    1. 1.
      ​Smelting:​​ Reduction of tin ore/concentrate in furnaces (electric/blast).
    2. 2.
      ​Refining:​​ Electrolytic or fire refining to remove impurities (Pb, Sb, Bi).
    3. 3.
      ​Casting:​​ Molten tin poured into molds to form ​​standard ingots​​.
  • ​Quality Checks:​​ Impurity analysis (AAS/ICP) before casting.
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