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EP 3 735 312 A1

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(43) Date of publication: 11.11.2020 Bulletin 2020/46 (21) Application number: 19735938.3 (22) Date of filing: 03.01.2019

(51) International Patent Classification (IPC):  B01D 53/22(2006.01) C01B 3/22(2006.01) C01B 3/32(2006.01) C01B 3/50(2006.01) B01D 63/08(2006.01) C01B 3/24(2006.01) C01B 3/34(2006.01) (86) International application number: PCT/US2019/012192 (87) International publication number: WO 2019/136156 (11.07.2019 Gazette 2019/28)

(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: KH MA MD TN (30) Priority: 04.01.2018 US 201815862474 (71) Applicant: Element 1 Corp Bend, Oregon 97701 (US)	(72) Inventors: EDLUND, David, J. Bend, OR 97701 (US) HOSHI, Koji Bend, OR 97701 (US) STUDEBAKER, Robert, Todd Bend, OR 97701 (US) STUDEBAKER, Robert, Jacob Bend, OR 97701 (US) (74) Representative: Ruschke, Hans Edvard  Ruschke Madgwick Seide & Kollegen Patentanwälte Patent Attorney (UK) PartG mbB Postfach 86 06 29 81633 München 81633 München (DE)