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作 者:陈敏
机构地区:[1]福州一化化学品股份有限公司,福建福州350001
出 处:《化学工程与装备》2009年第9期31-33,共3页Chemical Engineering & Equipment
摘 要:通过研究给出了在以铁基为助催化剂的情况下,过氧化氢氧化联二脲制备发泡剂ADC的反应机理。基于对机理的分析,H2O2应采用滴加的方式,以保持反应液中H2O2的低浓度。Br-的浓度、铁基助催化剂的浓度、酸度、反应温度、搅拌速度等是影响氧化反应的主要因素。The preparation of foaming agent ADC by oxidizing hydrogen peroxide with Fe3 + as the cocatalyst was studied and the, reaction mechanism was given. Based on the analysis of the reaction mechanism, the method of adding dropwise of H2O2 was applied to control it under the low concentration. The catalyst(Br) concentration, the promoter (FeCl3) concentration, the acidities, the reaction temperature and the stirring speed were found as the principal factors on the oxidation reaction.
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