C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 22/12 (2006.01)
Patent
CA 2660332
Methods and compositions involving the use of nitrogen-containing coordinated metal compounds for stabilizing chromium Vl reducing metal cations. Exemplary uses include processes for making cement, and exemplary compositions include cement additives, concrete admixtures, as well as hydratable cement and cementitous compositions.
La présente invention concerne des procédés et des compositions impliquant l'utilisation de composés métalliques coordonnés contenant de l'azote pour stabiliser des cations métalliques réduisant le chrome VI. Des utilisations susceptibles d'être citées en exemple incluent des procédés permettant de fabriquer du ciment, et des compositions susceptibles d'être citées en exemple incluent des additifs de ciment, des mélanges de béton, aussi bien que des compositions de ciment et des compositions à base de ciment hydratables.
Aldykiewicz Antonio J. Jr.
Berke Neal S.
Cornman Charles R.
Gupta Vijay
Jachimowicz Felek
Smart & Biggar
W.r. Grace & Co.,-Conn.
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