2024年7月18日 星期一 19:43:55

湿法生产阳离子淀粉常用..

      湿法生产阳离子淀粉常用NaCl作为抑制剂,请问能否用Na2SO4代替?产品应用效果是否一样?

答:低取代度阳离子淀粉通常可采用以水为介质的湿法反应工艺,由于反应是在碱性条件下进行的,为了防止淀粉颗粒的溶胀,常需加入一定量的无机盐,一般采用NaCl,也可采用Na2SO4,反应结束后,用盐酸中和,然后洗涤除去盐类杂质,因此不论是用NaCl或Na2SO4作抑制剂,所生产的阳离子淀粉在应用方面,效果都是一样的。(覃工答)

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