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    • 10. 发明授权
    • Chemistry for effective microbe control with reduced gas phase corrosiveness in pulp and paper processing systems
    • 用于在纸浆和纸张处理系统中降低气相腐蚀性的有效微生物控制的化学
    • US08986606B2
    • 2015-03-24
    • US12472058
    • 2009-05-26
    • Mark NelsonMarko KolariJuhana Ahola
    • Mark NelsonMarko KolariJuhana Ahola
    • A61L2/18D21F1/66C02F1/76C02F1/50C02F103/28
    • D21F1/66C02F1/50C02F1/76C02F2103/28C02F2303/08C02F2303/20
    • Processes for biofilm or microorganism growth control in an aqueous system such as a pulp, paper or board manufacturing system are described in which a halogenated hydantoin is added to the aqueous system in combination with haloamine, chlorine dioxide or a combination thereof. The halogenated hydantoin is preferably a fully or partially halogenated dialkyl hydantoin, and more preferably 5,5-dimethyl hydantoin or 5-methyl-5-ethyl hydantoin. The haloamine is preferably a monohaloamine, dihaloamine, trihaloamine, or a combination thereof, and more preferably monochloramine, monobromamine, bromochloroamine or a combination thereof. The halogenated hydantoin is preferably added to the aqueous system in portions of the system susceptible to gas phase corrosion, such as the short loop of the system, and the haloamine and chlorine dioxide are preferably added to other portions of the system. The halogenated hydantoin and haloamine and/or chlorine dioxide maintain good compatibility with each other in the absence of excess free chlorine.
    • 描述了在水系统如纸浆,纸或板制造系统中的生物膜或微生物生长控制的方法,其中将卤代乙内酰脲与卤胺,二氧化氯或其组合组合加入到水系统中。 卤化乙内酰脲优选为完全或部分卤化的二烷基乙内酰脲,更优选为5,5-二甲基乙内酰脲或5-甲基-5-乙基乙内酰脲。 卤代胺优选为单卤代胺,二卤代胺,三卤代胺或其组合,更优选一氯胺,一溴胺,溴氯胺或其组合。 卤化乙内酰脲优选在易于气相腐蚀的系统的部分系统中加入到水系统中,例如系统的短路,并且卤胺和二氧化氯优选加入系统的其它部分。 卤代乙内酰脲和卤代胺和/或二氧化氯在不存在过量游离氯的情况下保持彼此良好的相容性。