Novel minerals and methods for their production and use

Details Novel minerals and methods for their production and use Novel minerals and methods for their production and use

C - Chemistry, Metallurgy

01

B

C01B 25/32 (2006.01) A61L 24/02 (2006.01) A61L 27/00 (2006.01) A61L 27/12 (2006.01) C01B 25/26 (2006.01) C01B 25/36 (2006.01) C01B 25/37 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2278176

Uniformly sized and shaped particles of metal salts are provided comprised of one or more metal cations in combination with one or more simple oxoacid anions and a general method for the controlled precipitation of said metal salts from aqueous solutions. The methods proceed via the in situ homogeneous production of simple or complex oxoacid anions in which one or more of the nonmetallic elements e.g. Group 5B and 6B (chalcogenides), and 7B (halides) comprising the first oxoacid anion undergo oxidation to generate the precipitant anionic species along with concurrent reduction of the nonmetallic element of a second, dissimilar oxoacid anion. The oxoacid anions are initially present in solution with one or more metal cations known to form insoluble salts with the precipitant anion.

L'invention a trait à des particules de sels métalliques calibrées et conformées uniformément comprenant un ou plusieurs cations métalliques en combinaison avec un ou plusieurs anions simples d'oxoacide et à un procédé général pour la régulation des précipitations desdits sels métalliques provenant de solutions aqueuses. Les procédés agissent via la production homogène in situ d'anions d'oxoacide simples ou complexes dans lesquels un ou plusieurs éléments non métalliques, par exemple le Groupe 5B et 6B (chalcogénures) et 7B (halogénures), comprenant le premier anion d'oxoacide subissent une oxydation de façon à générer des espèces de précipitants anioniques accompagnés d'une réduction simultanée de l'élément non métallique d'un second anion d'oxoacide de type différent. Au départ, les anions d'oxoacide sont présents dans la solution avec un ou plusieurs cations métalliques connus pour former des sels insolubles avec l'anion précipitant.

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