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作 者:郑鑫梁 丁兴成 何江伟 章文刚 陆皝明 何萍 ZHENG Xin-liang;DING Xing-cheng;HE Jiang-wei;ZHANG Wen-gang;LU Huang-ming;HE Ping(Zhejiang Runtu Co.,Ltd.,Shaoxing 312369,Zhejiang China)
出 处:《染料与染色》2022年第3期30-32,共3页Dyestuffs and Coloration
摘 要:本文以2-萘酚为原料,经磺化、盐析、氨解、酸化及再磺化等工艺过程制备得到氨基K酸。通过优化盐析和氨解工艺,将磺化的主要副产物R酸进行回收;利用混合催化剂将G盐和R盐的混合物一次性氨解,有效提高了产品收率,并降低了废水处理成本,同时也降低了原料2-萘酚的单耗。2-naphthol was used as raw material,and amino K acid was obtained through sulfonation,salting out,aminolysis,acidification,and re-sulfonation.By optimizing the salting-out and ammonolysis processes,the main by-product R acid of sulfonation was recovered,and the mixture of G salt and R salt was ammonolyzed at one time by using a mixed catalyst,which could solve the problem of waste water treatment in the traditional process and reduce the unit consumption of raw material 2-naphthol.
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