(19)

(11)

EP 3 294 440 A1

(12)

(43) Date of publication: 21.03.2018 Bulletin 2018/12 (21) Application number: 16793239.1 (22) Date of filing: 06.05.2016

(51) International Patent Classification (IPC):  B01D 53/75(2006.01) B01D 53/84(2006.01) B01D 53/78(2006.01) (86) International application number: PCT/US2016/031138 (87) International publication number: WO 2016/182888 (17.11.2016 Gazette 2016/46)

(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: 08.05.2015 US 201562158672 P (71) Applicant: Hill Jr., Houston E. Edmond, OK 73025-2604 (US)	(72) Inventor: Hill Jr., Houston E. Edmond, OK 73025-2604 (US) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)