Lucilic acid separation and purification device

By integrating pretreatment and high-efficiency separation functions, the problem of oxidation inactivation and low separation efficiency in the extraction process of lacquer acid has been solved, realizing high-efficiency and low-energy-consumption separation of lacquer acid and obtaining high-purity lacquer acid products.

CN224141514UActive Publication Date: 2026-04-21XIAN LACQUER PAINT RES INST OF ALL CHINA SUPPLY & MARKETING COOP +1
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Patent Information

Application Number
CN202520885726.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-21
Estimated Expiration
2035-05-07

AI Technical Summary

Technical Problem

The separation process of astragalus acid in the existing technology has problems of stability (easy oxidation and deactivation) and low separation efficiency. In particular, astragalus acid is easily decarboxylated and converted into cashew phenol in unheated cashew shell oil. In addition, the traditional solvent extraction method has problems of incomplete solid-liquid separation, high solvent residue and high energy consumption.

Method used

A device for separating and purifying astragalus acid was designed, integrating pretreatment, acid stabilization, and efficient separation functions. It includes a pulverizing module, a nitrogen supply module, a screw conveyor, an extraction solvent addition module, a centrifugal separation device, an acid treatment reactor, a multi-stage settling tank, and a drying system. Through the coordinated action of these modules, the prevention of oxidative deactivation and efficient solid-liquid separation are achieved.

Benefits of technology

This method effectively solves the problems of oxidation deactivation and decarboxylation in the extraction process of ascorbic acid, improves the solid-liquid separation efficiency, reduces energy consumption and solvent residue, and obtains high-purity ascorbic acid products.

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Abstract

The utility model provides an anacaric acid separation and purification device, which relates to the technical field of anacaric acid separation and comprises a main body part for outputting pretreated powder; the nitrogen supply module is used for supplying nitrogen into the crushing cavity; the spiral conveyor is used for conveying the pretreated powder into the extraction container; the extraction solvent adding module is used for adding an extraction solvent into the extraction container; the first conveying pipe is used for conveying the solid-liquid mixed material to the centrifugal separation device for solid-liquid separation; the second conveying pipe is used for guiding liquid substances in the centrifugal separation device into the acid treatment reaction kettle and adding acid liquor into the acid treatment reaction kettle, the third conveying pipe is used for guiding acidified liquid into the multi-stage settling tank, and the multi-stage settling tank is provided with a membrane separation system; removing fat-soluble impurities in the acidified liquid through a membrane separation system to form a precursor solution; the fourth conveying pipe is used for guiding the precursor solution into a drying system, and the anacaric acid is obtained after vacuum drying.
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