C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
C01G 49/00 (2006.01) C01G 45/02 (2006.01) C01G 49/14 (2006.01) C22B 3/20 (2006.01) C22B 3/44 (2006.01) C22B 34/12 (2006.01) C22B 47/00 (2006.01)
Patent
CA 2281760
Soluble manganese salts present as contamination of a solution containing iron salts are removed by adding an oxidation agent capable of converting the soluble manganese salts to manganese dioxide and by adding manganese dioxide particles as seeding agent whereby any colloidal manganese dioxide is deposited on the seed particles.
L'invention porte sur l'élimination de sels de manganèse solubles présents comme impuretés d'une solution contenant des sels de fer. On réalise l'opération en ajoutant un agent d'oxydation capable de convertir les sels de manganèse solubles en bioxyde de manganèse et en ajoutant des particules de bioxyde de manganèse comme agent d'ensemencement, procédé suivant lequel un quelconque bioxyde de manganèse colloïdal est déposé sur les particules d'ensemencement.
Sim & Mcburney
Tioxide Group Services Limited
LandOfFree
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