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(11)

EP 2 833 996 A1

(12)

(43) Date of publication: 11.02.2015 Bulletin 2015/07 (21) Application number: 13743348.8 (22) Date of filing: 28.01.2013

(51) International Patent Classification (IPC):  B01J 2/00(2006.01) C01B 17/00(2006.01) B29B 9/00(2006.01) (86) International application number: PCT/US2013/023423 (87) International publication number: WO 2013/116148 (08.08.2013 Gazette 2013/32)

(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 (30) Priority: 31.01.2012 US 201213363235 (71) Applicant: Brimrock International Inc. Kilgore, TX 75663 (US)	(72) Inventors: IRANI, Jamsheed P. Calgary AB T2Z 3X7 (CA) DE PAOLI, Sergio A. Calgary AB T2Z 3X7 (CA) (74) Representative: Setréus, Ellen  Sandvik Intellectual Property AB 811 81 Sandviken 811 81 Sandviken (SE)