Method for reducing hydrogen sulfide evolution from asphalt

Details Method for reducing hydrogen sulfide evolution from asphalt Method for reducing hydrogen sulfide evolution from asphalt

C - Chemistry, Metallurgy

08

L

C08L 95/00 (2006.01) C08J 3/20 (2006.01) C08K 3/00 (2006.01) C10C 3/00 (2006.01)

Patent

CA 2708608

Hydrogen sulfide evolution from asphalt may be reduced or eliminated using an additive to act as a scavenger. Zinc oxide, when present in the form of nano- particles is an effective component is preventing or mitigating the evolution of hydrogen sulfide from asphalt. Zinc sulfonate may also be used. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)

L'invention vise à réduire ou à supprimer la formation de sulfure d'hydrogène à partir d'asphalte au moyen d'un additif qui sert d'épurateur. L'oxyde de zinc, lorsqu'il est présent sous la forme de nanoparticules, constitue un composant efficace pour prévenir ou atténuer la formation de sulfure d'hydrogène à partir d'asphalte. Le sulfonate de zinc peut aussi être utilisé.

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