Study on Purification and Removal of Iron from Alloy Anode

Li Wei; Peng Wei Li; Tao Han; Ting An Zhang; Xin Sheng Zhai

doi:10.4028/www.scientific.net/AMR.391-392.883

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Study on Purification and Removal of Iron from Alloy Anode
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 391-392Study on Purification and Removal of Iron from...

Study on Purification and Removal of Iron from Alloy Anode

Abstract:

Residue of alloy anode generated in three-layer liquid electrolytic purifying method is refined, the state of iron in raw materials is analysed. The state (morphology) changes of iron refined by different refining agent are investigated. Results show: 40% of boron salts or phosphate as the main component of refining agent adding 15% NaCl、20% KCl、15% CaF₂、5% NaF、5% cryolite, melting the residue of alloy anode at 1100°C and 1200°C respectively, the crystal could be incubated to grow up fully, it is benefit for collecting iron. When the soaking time is 150min, iron component in alloy is 4.8%,it reaches the standard taking back into the aluminum refining process.