Title:
PROCESSES FOR TREATING ELECTROLYTE FROM AN ELECTROREFINING PROCESS
Document Type and Number:
WIPO Patent Application WO/2020/191484
Kind Code:
A9
Abstract:
Process of treating an aqueous solution comprising arsenic impurities, such as an electrolyte from electrorefining of copper, the process comprising reducing As(V) to As(III) using SO2; and removing As(III) via cation exchange using a chelating resin, such as a polymeric resin with a polyhydroxy amine functional group. The process can further comprise membrane contact between electrolyte feed stream and reduction reaction product stream to transfer residual SO2 in the product stream to the electrolyte feed steam.
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| WO/2018/211996 | METHOD FOR PROCESSING OIL COMBUSTION ASH |
| WO/2021/113021 | REMOVING CONTAMINANTS FROM LIQUIDS |
Inventors:
KRYST KATERINA (CA)
SHEEDY MICHAEL (CA)
SHEEDY MICHAEL (CA)
Application Number:
PCT/CA2020/050370
Publication Date:
November 05, 2020
Filing Date:
March 20, 2020
Export Citation:
Assignee:
ECO TEC (CA)
International Classes:
C02F9/04; C01G3/00; C02F1/28; C02F1/42; C02F1/461; C02F1/70; C25C1/12; C25C7/06
Attorney, Agent or Firm:
LAMBERT INTELLECTUAL PROPERTY LAW et al. (CA)
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