BOPI 02 BR/2024 REPERTOIRE NUMERIQUE 39 (54) Process for producing high purity aluminium materials. (72) WELHAM, Nicholas James (AU) (73) HIPURA PTY LTD, Level 1, 1 Tully Road, EAST PERTH, Western Australia 6004 (AU) (74) S.C.P. AKKUM AKKUM & Associates, No. 1777, Rue 6.261, Auditorium Jean Paul II, Quartier Mbankolo B.P. 4966, YAOUNDE (CM). (57) A process for producing high purity alumina (HPA) or high purity aluminium salts from an aluminiumbearing material, such as is disclosed. An aluminium-bearing solution is first obtained by either dissolving or leaching the aluminiumbearing material. Aluminium is then selectively extracted by liquid-liquid or liquid-solid extraction to obtain an aluminium-enriched liquid or aluminium-enriched solid phase. Minor metal impurities still remaining in the aluminiumenriched liquid or solid phase are removed by scrubbing the aluminium-enriched liquid or aluminium-loaded ion exchange resin with an aqueous solution thereby producing a metal impurity-depleted aluminium-enriched liquid or metal impurity-depleted aluminium enriched solid phase. Aluminium is then stripped from the scrubbed liquid or solid phases with an acidic aqueous solution to produce an aluminiumenriched aqueous solution. High purity aluminium salts may be crystallised from said solution. Alternatively, the pH of said solution may be raised to precipitate an aluminium precipitate, such as AI(OH)3, which is then calcined to produce HPA. Fig. 1 ________________________________________ (11) 21427 Consulter le mémoire (51) A61K 31/713 (2018.01); C07H 21/02 (2018.01); C12N 15/11 (2018.01); C12N 15/113 (2018.01) ; C12Q 1/68 (2018.01) (21) 1202300473 - PCT/US2022/030969 (22) 25/05/2022 (30) US n° 63/194,370 du 28/05/2021 (54) RNAI agents for inhibiting expression of mucin 5AC (MUC5AC), compositions thereof, and methods of use. (72) NICHOLAS, Anthony (US); BUSH, Erik W. (US) et SCHIENEBECK, Casi, M. (US)
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