Semi-continuous production method and device of hexafluorocyclotriphosphazene

• Main Authors: WEI BI, CAO YANG, ZHANG HONGLIN, JANG JAE-MAN, JANG JAE-WOONG, ZUO GUOLEI, CHEN FAN
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a semi-continuous production method and device of hexafluorocyclotriphosphazene, which specifically comprises the following steps: under the condition of a phase transfer catalyst, dropwise adding the hexafluorocyclotriphosphazene dissolved in an organic solvent into a reaction system containing the phase transfer catalyst, inorganic villiaumite and the organic solvent; and the target product hexafluorocyclotriphosphazene is obtained in a reactive distillation manner. By adopting the phase transfer catalyst, a reactive distillation process and a continuous feeding mode, the invention has the advantages of short reaction time, high solvent recycling rate, few side reactions, high yield, simple preparation process, continuous reaction, greenness and environmental protection, and is suitable for industrial production. 本发明涉及一种六氟环三磷腈的半连续生产方法及装置，具体涉及的步骤为：在相转移催化剂条件下，将溶解在有机溶剂中的六氯环三磷腈滴加到含有相转移催化剂、无机氟盐和有机溶剂的反应体系中，通过反应精馏的方式得到目标产物六氟环三磷腈。本发明采用了相转移催化剂，通过反应精馏工艺，连续进料的方式，反应时间短，溶剂循环使用率高，副反应少，产率高，制备工艺简单，