Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing single metal
Reexamination Certificate
2008-03-04
2008-03-04
Bos, Steven (Department: 1793)
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing single metal
C423S112000
Reexamination Certificate
active
07338589
ABSTRACT:
The present invention relates to a process for the recovery of gallium from Bayer process liquors. Bayer process liquor is obtained from alumina industries and contains 450 g/L Na2O, 80 g/L Al2O3and 190±20 ppm of gallium. The present invention utilizes an organic and inorganic phase for a two stage separation process to recover gallium with high purity.
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patent: 4241029 (1980-12-01), Helgorsky et al.
patent: 4438078 (1984-03-01), Nalewajek
patent: 4844808 (1989-07-01), Sabot et al.
patent: 5204074 (1993-04-01), Pescher et al.
Product Data Sheet for VERSATIC 10, May 2002, pp. 1-3.
Puvvada G V K; “Liquid-Liquid . . . Surfactants”; Hydrometallurgy, Elsevier Scientific Publishing CY. Amsterdam, NL.; vol. 52; No. 1; Apr. 1999; pp. 9-19; XP004163142.
Agrawal Archana
Chattoraj Indranil
Kumar Puvvada George Vijay
Rao Patcha Ramachandra
Bos Steven
Council of Scientific and Industrial Research
Ladas and Parry LLP
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