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作 者:宋玉叶[1] 黎振球[1] 肖海焕[1] 李敬华[1] 黄彩霞[1]
出 处:《精细石油化工进展》2007年第11期51-54,共4页Advances in Fine Petrochemicals
摘 要:介绍了橡胶促进剂2,2′-二硫代二苯并噻唑主要生产方法,包括采用亚硝酸钠、氯气、次氯酸钠作氧化剂的传统生产方法和氧气作氧化剂的新工艺,并分别对其优缺点进行了对比。传统的生产方法原料成本高,废水、废气对环境污染严重,不符合绿色化工发展的要求;氧气作氧化剂生产橡胶促进剂DM不仅原料易得,成本低,无污染,而且母液可循环使用,基本无废水排放。中试已成功生产出合格产品,符合大规模工业化生产要求,有广阔的工业应用前景。Several main methods to produce 2,2′ - dibenzothiazyl disulfide were described including conventional method using sodium nitrite, chlorine, sodium hypochlorite as oxidants and new method using oxygen as oxidant which had economical and environmental advantages. The two methods were compared. The former did not meet the demand of green chemical industry with high cost and heavy environmental pollution due to waste water and gas,but the latter had good prospects in the future with easy access to raw material, low cost, no pollution and the repeated use of mother liquid.
关 键 词:2-硫醇基苯并噻唑 2 2′-二硫代二苯并噻唑 精制 氧化
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