【摘要】 对羟基乙腈法合成甘氨酸过程中有色物质的脱除和活性炭的再生进行了深入的研究.研究发现用硫酸处理活性炭不但可以提高脱色效率而且可以实现活性炭再生和循环套用,基于这一发现我们对活性炭再生时硫酸的浓度、处理时间、处理温度及物料配比等工艺条件进行了优化,提出了腈类物质在合成氨基酸时有色物质的有效脱除方法和作为脱色剂的活性炭再生工艺,该研究对脱色后所产生的废弃活性炭提出了新的清洁和循环处理方法.更多还原

【Abstract】 The approaches for removing colored impurites and regenerating activated carbon were studied.The authos found that treatment of the diposed activated carbon with concentrated sulfuric acid can not only raise the decolorizing efficiency,but also regerate and cirluate the activated charcoal.The concentration of sulfuric acid,reaction time,temperature,material proportion were optimized.The results proposed a new clean and circulation process for chemical industry’s decolorization with activated charcol.更多还原