Patent SG-11201805219S-A (SG)
Title: Dehydroxylation of magnesium silicate minerals for carbonation
Inventor: Faezeh FARHANG
IPC: C01F5/24
Filed: 2016-12-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 1111111101111011101010111110101111101110101101110111010111101111101111011111 International Bureau 0.. .... .. ..... ..or::,,, (10) International Publication Number (43) International Publication Date WO 2017/106929 Al 29 June 2017(29.06.2017) WIPO I PCT (51) International Patent Classification: COIF 5/24 (2006.01) (21) International Application Number: PCT/AU2016/051283 (22) International Filing Date: 23 December 2016 (23.12.2016) (25) Filing Language: (26) Publication Language: (30) Priority Data: 2015905351 23 December 2015 (23.12.2015) (71) Applicant: MINERAL CARBONATION INTERNA- TIONAL PTY LTD [AU/AU]; Suite 126, Mode Lonsdale Street, Braddon, Global Village, Australian Cap- ital Territory 2612 (AU). (72) Inventors: FARHANG, Faezeh; 10 Hebe Place, Cameron Park, New South Wales 2285 (AU). KENNEDY, Miles; 64 Church Street, Newcastle, New South — 2300 (AU). STOCKENHUBER, Michael; 180 Paterson (74) Agent: DAVIES COLLISON CAVE; 1 Nicholson Street, Melbourne, Victoria 3000 (AU). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, English HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, English MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, AU RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. 3, 24 (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, Eric TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, Wales DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, 2320 SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Road, GW, KM, ML, MR, NE, SN, TD, TG). Mark Wales Published: — with international search report (Art. 21(3)) — Road, Bolwarra Heights, Maitland, New South Wales — (AU). BRENT, Geoffrey Frederick; 129 Andrew Valentine, New South Wales 2280 (AU). RAYSON, = Stuart; 23 Tooke Street, Bar Beach, New South 2300 (AU). = = = = = (54) Title: DEHYDROXYLATION OF MAGNESIUM SILICATE MINERALS FOR CARBONATION 3 ( magnesium pressure and at a the dehydroxylated A typical re- mineral, (3) crushing, (8) carbon dioxide or heat recovery, and = = = = = _ 2 ' t 4 I t = = 8 = - FIGURE I process comprises the bed of particles under magnesium silicate ions and/or bicarbonate from mine, (2) hydroxylated magnesium silicate heating, (6) vacuum reactions, (10) carbonate providing a bed of hydroxylated of a sub-atmospheric mineral; and reacting to form magnesium carbonate. from carbon source, (11) pre-heat, (12) product, 11 ei C:r 00 (57) : A process for mineral carbonation, which ---- silicate mineral particles in a heating vessel; agitating the L . ' temperature of at least 600°C to produce particles of dehydroxylated ::::) magnesium silicate mineral with carbon dioxide, carbonate el actor system for carrying out the process includes (1) mineral O grinding, sizing, (4) agitated bed of particles, (5) external ,.1 . carbonate or bicarbonate ions in solution, (9) carbonation (13) magnetic fraction. of: ions (7) conditions 9 steps system,