(19)

(11)

EP 3 423 612 A1

(12)

(43) Date of publication: 09.01.2019 Bulletin 2019/02 (21) Application number: 17711462.6 (22) Date of filing: 02.03.2017

(51) International Patent Classification (IPC):  C25B 15/08(2006.01) C25B 9/10(2006.01) C25B 1/20(2006.01) C25B 1/10(2006.01) C25B 13/04(2006.01) C25B 1/24(2006.01) (86) International application number: PCT/US2017/020349 (87) International publication number: WO 2017/151857 (08.09.2017 Gazette 2017/36)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 04.03.2016 US 201615061427 (71) Applicant: Field Upgrading Limited Calgary, AB T2G 1B1 (CA)	(72) Inventors: JOSHI, Ashok V. Salt Lake City Utah 84106 (US) BHAVARAJU, Sai West Jordan Utah 84088 (US) (74) Representative: HGF Limited  1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)