Drying device for diafenthiuron technical preparation

By designing a drying device for the preparation of butyl ether urea primary drug, the problem of low automation of the preparation process in the prior art is solved, and the efficiency of the original drug, automated preparation and product quality are achieved.

CN119778989AActive Publication Date: 2025-04-08JIANGSU CHANGQING AGROCHEMICAL CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202411979082.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-08
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

In the prior art, the preparation process of butyl ether urea drug cannot be fully automatic, and the degree of automation is low, resulting in manual operation of the process.

Method used

A drying device for preparing butyl ether urea is designed, including an operating mechanism, a mixing mechanism and a drying mechanism. The operating mechanism realizes quantitative feeding and mixing of raw materials through the drop and lifting of the lower press; the drying mechanism realizes uniform drying of solvent through a heater and a rotary drying bottle.

Benefits of technology

It improves the automation and continuity of the preparation process of butyl ether urea, reduces manual operations, ensures the smooth progress of the preparation reaction, and improves product quality through uniform drying.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119778989A_ABST
    Figure CN119778989A_ABST
Patent Text Reader

Abstract

The invention discloses a drying device for diafenthiuron technical preparation, and belongs to the technical field of diafenthiuron preparation, the drying device comprises an operation mechanism, and the operation mechanism is provided with a mixing mechanism used for raw material mixing preparation and a drying mechanism used for drying a solvent. According to the present invention, when the pressing frame is pressed down, the operating mechanism enables the 2, 6-diisopropyl-4-phenoxy phenyl isothiocyanate and the toluene to be mixed, then the tert-butylamine is dropwise added, finally the 2, 6-diisopropyl-4-phenoxy phenyl isothiocyanate, the toluene and the tert-butylamine are subjected to standing mixing, the dried intermediate product in the previous preparation process is pumped into the crystallization box to be crystallized, and when the pressing frame is lifted up, the 2, 6-diisopropyl-4-phenoxy phenyl isothiocyanate and the tert-butylamine are subjected to crystallization so as to obtain the 2, 6-diisopropyl-4-phenoxy phenyl isothiocyanate. The mixed raw materials enter the drying bottle to be dried, diafenthiuron prepared and crystallized last time is taken out, the automation degree is high, and continuity is good; according to the drying mechanism, when the drying bottles are dried through the heater, the drying bottles rotate at the same time, the heating area is increased, and uniform drying is achieved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Synthesis method of novel thiourea type diafenthiuron for killing insects and mites

    CN113024428A

  • Preparation device and preparation method of taurine

    CN116870843A

  • Method and device for purifying antioxidant 2246

    CN116999887A

  • Acidic catalytic synthesis reactor for methyl tert-butyl ether

    CN117180788A

  • Preparation equipment and preparation process of diafenthiuron active compound

    CN117960040A