Research progress on continuous diazotization/azo-coupling reaction in microreactors

doi:10.11949/j.issn.0438-1157.20180554

Abstract

Abstract:

Microreactor is generally referred to a mini-reactor made by microfabrication and precision machining technology. It is one of the core components of microchemical technology. Compared with the traditional batch reactor, the microreactor has many advantages, which complies with the requirements of high technology content and sustainable development. In chemical engineering, materials, biology and many other fields of research and production process, the microreactor has a broad application. It involves the synthesis process of the dangerous or unstable chemical compounds and the high exothermic reaction process. In this paper, two parts are introduced respectively, involving the research progress of continuous diazotization and continuous diazotization/coupling reaction for synthesis of azo dyes and azo pigments. The microreactor technology makes the chemical reaction process become faster, safer and more environmentally friendly, so it has high industrial application value and is one of the future development directions of the chemical industry.

Key words: microreactor, microchannels, microscale, diazotization, azo-coupling reaction, azo pigment, azo dye

摘要：

微反应器一般是指通过微加工和精密加工技术制造的小型反应器，其为微化工技术的核心部件之一。与传统的釜式反应器相比，微反应器具有很大的优势，顺应了高技术含量和可持续发展的要求。在化学化工、材料、生物等诸多领域的研究和生产过程中，微反应器都有着广泛的应用前景，这其中一大部分涉及到了危险或不稳定物质的合成过程及高放热反应过程等。本文主要介绍了国内外利用微反应器技术进行重氮化反应连续化的研究进展，以及利用微反应器进行连续重氮化/偶合反应合成偶氮染料及颜料的研究进展。微反应器技术使化学反应过程变得更快速、更安全、更环保，所以具有很高的工业应用价值，也是化工领域未来的发展方向之一。

关键词: 微反应器, 微通道, 微尺度, 重氮化反应, 偶合反应, 偶氮颜料, 偶氮染料

CLC Number:

TQ052.5

DING Yuncheng, WANG Fajun, AI Ning, XU Jianhong. Research progress on continuous diazotization/azo-coupling reaction in microreactors[J]. CIESC Journal, 2018, 69(11): 4542-4552.

丁云成, 王法军, 艾宁, 徐建鸿. 微反应器内连续重氮化/偶合反应进展[J]. 化工学报, 2018, 69(11): 4542-4552.

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