Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Reexamination Certificate
2005-01-25
2005-01-25
Bos, Steven (Department: 1754)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
C423S070000, C423S100000, C423S112000, C423S139000, C423SDIG001, C210S681000, C210S688000
Reexamination Certificate
active
06846470
ABSTRACT:
A method for producing an indium-containing aqueous solution having a reduced amount of metal impurities is provided. A method for producing an indium-containing aqueous solution having a reduced amount of metal impurities which comprises bringing an aqueous solution containing indium and metal impurities whose hydrogen ion concentration is adjusted at 0.5 mol/L to 3 mol/L into contact with a non-chelate ion-exchange resin to remove the metal impurities, and a method for producing an indium-containing aqueous solution having a reduced amount of metal impurities which comprises bringing an aqueous solution containing indium and metal impurities into contact with a chelate ion-exchange resin to remove the metal impurities are provided.
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Fujiwara Shinji
Hattori Takeshi
Saegusa Kunio
Bos Steven
Sughrue & Mion, PLLC
Sumitomo Chemical Company Limited
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