期刊论文

Preparation of hydroxylamine sulfate by continuous reaction-extraction coupling technology

You, Kuiyi(youkuiyi@126.com)

中文

化工学报

0438-1157

2019

70

5

1842-1847

10.11949/j.issn.0438-1157.20181446

14C1004:湖南省教育厅科学研究项目 16C1539:湖南省教育厅一般项目 21606186:国家自然科学基金

本校为第一机构

以环己酮肟和硫酸为原料,研究连续反应-萃取耦合技术条件下环己酮肟水解制备硫酸羟胺。通过优化连续反应-萃取条件,将水解得到的另一产物环己酮从原有平衡体系分离,突破原反应平衡的限制,极大提高环己酮肟的转化率。结果表明,在以环己烷作为萃取剂,酸肟比1∶1,转速为2000～2500 r/min,硫酸溶液与环己烷等体积比的条件下,反应条件最佳。同时测得当原料从重相进料,通过五级串联逆流反应萃取,90 min反应基本达到平衡,经过四次循环萃取后环己酮肟转化率可达81.90%。

Using cyclohexanone oxime and sulfuric acid as raw materials, the hydrolysis of cyclohexanone oxime under continuous reaction-extraction coupling technology was studied to prepare hydroxylamine sulfate. The continuous reaction-extraction conditions were optimized. Cyclohexanone which as another product of hydrolysis reaction was separated from the original reaction equilibrium. This technology broke through the limits of the original reaction equilibrium, it greatly improved the conversion rate of cyclohexanone oxime. The results showed that th...