一种β-紫罗兰酮的生产工艺

By combining a spiral wound tube heat exchanger and a dynamic stirred tube reactor, the problems of intense exothermic reaction and difficulty in local temperature control during the production of β-ionone were solved, thereby improving product quality and production stability and reducing the generation of tar byproducts.

CN122036478BActive Publication Date: 2026-07-17HIMILE MECHANICAL MFG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HIMILE MECHANICAL MFG
Filing Date
2026-04-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing β-ionone production processes suffer from problems such as intense exothermic cyclization reactions, difficulty in local temperature control, easy generation of tar byproducts, easy equipment blockage, and difficulty in achieving stable and continuous production.

Method used

A combined process of precooling with a spiral wound tube heat exchanger and a dynamic stirred tube reactor is adopted. The pseudoionone solution and acidic catalyst are first precooled, and then mixed and quenched in the dynamic stirred tube reactor to ensure rapid heat exchange, mixing and local temperature control, and reduce the occurrence of side reactions.

Benefits of technology

It improved the purity and yield of β-ionone, enhanced the stability and continuity of production, and reduced the formation of tar byproducts.

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Abstract

本发明涉及化工合成技术领域,公开了一种β‑紫罗兰酮的生产工艺,包括以下步骤:(1)将假紫罗兰酮溶液、酸性催化剂分别经过螺旋缠绕管式换热器预冷后送入动态搅拌管式反应器混合反应得到混合反应液;(2)将所述混合反应液、经过螺旋缠绕管式换热器预冷后的淬灭剂送入动态搅拌管式反应器进行淬灭后,分相,得到所述β‑紫罗兰酮。本发明将螺旋缠绕管式换热器与动态搅拌管式反应器连用,能够提高物料预冷、混合及传热效果,降低局部过热和焦油副产物生成,提高β‑紫罗兰酮的反应选择性和收率;有利于实现连续化、稳定化生产,适于工业放大应用。
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