Ultrasonic crystallization device and process for preparing high-purity ethyl maltol

Through the synergistic action of the grinding, stirring and shock components of the ultrasonic crystallization device, the agglomeration problem during the dissolution of ethyl maltol is solved, and efficient dissolution and the preparation of high-purity ethyl maltol is achieved.

CN120169004BActive Publication Date: 2025-08-29FUJIAN PURE FLAVOR BIO TECH CO LTD
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Patent Information

Application Number
CN202510641781.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2025-08-29
Estimated Expiration
2045-05-19

AI Technical Summary

Technical Problem

In the prior art, agglomeration is prone to occur during the dissolution of ethyl maltol, resulting in insufficient dissolution, affecting crystal form, purity and yield. The existing ultrasonic assisted technology has not been effectively applied in the dissolution-crystallation combined process of ethyl maltol.

Method used

The ultrasonic crystallization device is adopted, combined with the grinding component, agitating component and ultrasonic oscillation component, and through the opposite rotation of the grinding inner cylinder and the rotary plate, the movement of the hydraulic rod and ultrasonic oscillation, the powder refinement and dissolution are promoted, and the multi-angle stirring of the stirring component and the material divergence is achieved to achieve uniform mixing and dissolution of the material.

Benefits of technology

It effectively avoids clumping, improves the dissolution efficiency and crystallization effect of ethyl maltol, and improves the purity and yield of the product.

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Abstract

The invention discloses an ultrasonic crystallization device for preparing high-purity ethyl maltol and a process thereof, relating to the technical field of ethyl maltol preparation. The device comprises an installation stand and a reactor body, wherein a rotating plate is rotatably installed on the top of the reactor body, and further comprises a grinding component, a stirring component and an ultrasonic oscillation component. The device can refine powder in a grinding area to avoid agglomeration. On the other hand, when a subsequent hydraulic rod moves downward, it can drive a sealing ring plug to move downward, thereby allowing a portion of air in an inner grinding cylinder to pass into an annular cavity through a one-way air outlet valve, and finally to be diverted through multiple oblique branches and blown into a drop hole on the rotating plate, thereby promoting the falling of the powder. At the same time, another portion of air in the inner grinding cylinder is aerated into the reactor body through a bottom through-pipe and the one-way air outlet valve, thereby achieving the effects of assisting material dissolution and promoting subsequent crystallization.
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