C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 41/88 (2006.01) A62D 3/37 (2007.01) B01F 17/52 (2006.01) C02F 1/00 (2006.01) C02F 1/28 (2006.01) C02F 1/68 (2006.01) C04B 35/628 (2006.01)
Patent
CA 2535709
The invention relates to metal-treated particles, methods for their preparation and methods for using metal-treated particles for, e.g., remediation of process waste-water, sewage, contaminated groundwater aquifers, and soil containing harmful contaminants. Another aspect of the invention relates to a metal-treated particle comprising a ferrosoferric oxide core and a metal supported on the core, where the average diameter or other largest transverse dimension of the core is from about 75 nm to about 990 nm and the amount of metal supported on the core is from about 8% to about 22% by weight, based on the weight of the metal-treated particle.
L'invention concerne des particules traitées aux métaux, des procédés de fabrication correspondants et des procédés d'utilisation de particules traitées aux métaux, par exemple, dans des processus d'actions correctives visant les eaux usées, les eaux de canalisation, les aquifères contaminés et les sols contenant des contaminants nocifs. Un autre aspect de l'invention concerne une particule traitée aux métaux comprenant un noyau d'oxyde ferrosoférrique et un métal fixé sur ce noyau, le diamètre moyen ou la plus grande dimension transversale du noyau étant comprise entre environ 75 nm et environ 990 nm, et la quantité de métal fixé sur le noyau étant comprise entre environ 8 % et environ 22 % en poids, sur la base du poids de la particule traitée au métaux.
Crane Co.
Osler Hoskin & Harcourt Llp
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