Method for applying halide brines to surfaces

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 3/18 (2006.01) C09K 3/22 (2006.01) C23F 11/10 (2006.01) C23F 11/12 (2006.01) C23F 11/14 (2006.01)

Patent

CA 2318585

A method for applying halide brine to surfaces requiring protection against freeze conditions, inhibition of snow and ice accumulating, deicing or freeze retardation, for example, or dust control with limited corrosion is disclosed, the method comprising the steps of forming an admixture of polyhydroxy carboxylate and polyalkoxylated amine dispersed in a halide brine solution in an amount effective to inhibit corrosion; and applying the admixture to surfaces. The method of this invention can be used to limit corrosion in the application of a halide brine to surfaces of dust-producing materials as well as surfaces requiring protection against freeze conditions.

Ce procédé d'application de saumures à base d'halogénure sur des surfaces nécessitant une protection contre le gel, ou sur lesquelles il faut empêcher l'accumulation de neige ou de glace, ou nécessitant un dégivrage ou un ralentissement du gel, par exemple, ou un dépoussiérage avec corrosion réduite, comprend les étapes consistant à former un mélange de polyhydroxycarboxylate et d'amine polyalcoxylée, dispersé dans une solution de saumure à base d'halogénure, en quantité suffisamment efficace pour empêcher la corrosion, puis à appliquer ce mélange sur des surfaces. On peut utiliser le procédé de l'invention pour limiter la corrosion dans l'application d'une saumure à base d'halogénure sur des surfaces de matériaux producteurs de poussières, de même que sur des surfaces devant être protégées du gel.

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