Our published patent applications are
- Grant DA and Barker MH: Equipment for de-copperising an electrorefining process and way of operating the process: WO2017191458 (A1) published 09.11.2017.
- Barker MH and Grant DA: Equipment for a metal electrowinning or liberator process and way of operating the process: WO2017144912 (A1) published 31.08.2017.
- Barker MH and Grant D: Anode for a metal electrowinning process: WO2017064485 (A1) published 20.04.2017.
EWT Ltd. is a participant in the European Copper Institute’s CuBES – Copper Based Electrochemical Solutions – EIP Raw Materials commitment. Our in-situ liberation technology for copper concentration control is featured in the CuBES online magazine.