化工学报2019，Vol.70Issue(5)：1842-1847,6.DOI:10.11949/j.issn.0438-1157.20181446
连续反应-萃取耦合技术制备硫酸羟胺
Preparation of hydroxylamine sulfate by continuous reaction-extraction coupling technology
摘要
Abstract
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 the best reaction conditions were: cyclohexane used as the extraction agent, the ratio of oxime to acid 1∶1, the rotational speed 2000—2500 r/min, and the volume ratio of sulfuric acid solution to cyclohexane 1∶1. At the same time, when the raw material was fed from the heavy phase and extracted by five-stage series countercurrent reaction, after 90 min, the reaction basically reached equilibrium. After four cycles of extraction, the conversion rate of cyclohexanone oxime could reach 81.90%.关键词
反应-萃取耦合/反应/平衡/水解/环己酮肟/硫酸羟胺Key words
reaction-extraction coupling/reaction/equilibrium/hydrolysis/cyclohexanone oxime/hydroxylamine sulfate分类
化学化工引用本文复制引用
彭超,王榆元,邓昌爱,赵方方,游奎一..连续反应-萃取耦合技术制备硫酸羟胺[J].化工学报,2019,70(5):1842-1847,6.基金项目
湖南省教育厅科研项目(14C1004) （14C1004）
湖南省教育厅一般项目(16C1539) （16C1539）
国家自然科学基金青年科学基金项目(21606186) （21606186）
