Chemistry: physical processes – Physical processes – Crystallization
Patent
1979-03-12
1981-03-17
Smith, William F.
Chemistry: physical processes
Physical processes
Crystallization
23305R, 423 85, 423 82, B01D 900, C01F 734, C01G 2302
Patent
active
042564638
ABSTRACT:
A method of crystallizing zirconium or hafnium oxychloride to remove metallic impurities and phosphorus by maintaining the normality of the mother liquor in which the zirconium or hafnium tetrachloride is dissolved.
REFERENCES:
patent: 1666440 (1928-04-01), Coster
patent: 3032388 (1962-05-01), McCord et al.
patent: 3057678 (1962-10-01), Clearfield
patent: 3058801 (1962-10-01), Pilloton
Konkol Chris
Smith William F.
Teledyne Industries Inc.
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