Phase diagram of the system LiF-Na3AlF6-Na3FSO4: Experimental study and calculation
✍ Scribed by P. Fellner; J. Gabčová
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 352 KB
- Volume
- 206
- Category
- Article
- ISSN
- 0040-6031
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The phase analysis of cryolite (Na 3 AlF 6 ) and sodium metasilicate (Na 2 SiO 3 ) was performed by thermal analysis. The eutectic system with a region of two immiscible substances at a concentration of Na 2 SiO 3 between 42.8 and 46.3 mol-% was identified and the eutectic temperature determined to
## Abstract Phosphorus is one of the predominant impurities in the Hall–Heroult process for industrial aluminium production. The nature of the dissolved phosphorus species in the Na~3~AlF~6~AlPO~4~ system has been investigated by __in situ__ high‐temperature (HT) ^19^F, ^23^Na, ^27^Al, ^17^O, and