Preparation device and method of polyurea viscosifier powder

Through the continuous spray reaction and solvent separation and recovery device, the problems of difficult stirring and incomplete solvent evaporation in the preparation process of polyurea thickener powder are solved, and efficient continuous production and preparation of high-performance grease are achieved.

CN116617998BActive Publication Date: 2025-10-17CHINA PETROLEUM & CHEMICAL CORP +1
8 Cites 0 Cited by

Patent Information

Application Number
CN202310634872.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-31
Publication Date
2025-10-17
Estimated Expiration
2043-05-31

AI Technical Summary

Technical Problem

In the prior art, the preparation process of polyurea thickener powder has problems such as difficult stirring, incomplete solvent evaporation and soap powder agglomeration, which affect the use effect.

Method used

A continuous spray reaction, solvent separation and recovery device is used to prepare polyurea thickener powder through spray contact, and the solvent is quickly separated and recovered under hot air and cyclone separation devices to solve the problems of difficult stirring and incomplete solvent evaporation.

Benefits of technology

The efficient and continuous production of polyurea thickener powder was achieved, solving the problems of difficult stirring, incomplete solvent evaporation and soap powder agglomeration. The performance of the prepared grease was comparable to that of the traditional method.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application relates to the technical field of polyurea grease preparation devices and processes, in particular to a polyurea thickener powder preparation device and method, which comprises a spraying reaction system, a solvent separation system and a solvent recovery system; the solvent separation system comprises a hot air conveying device and a cyclone separation device; the solvent recovery system is arranged at the top of the cyclone separation device; the hot air conveying device blows the polyurea thickener prepared by the spraying reaction system into the cyclone separation device, and the solvent is evaporated and then enters the solvent recovery system. The polyurea thickener powder preparation device and method provided by the application solve the problems of stirring difficulty, incomplete solvent evaporation, soap powder caking and use influence in the preparation process of the prefabricated polyurea thickener powder, and the prepared polyurea thickener powder can obtain lubricating grease with performance equivalent to that prepared by a traditional method.
Need to check novelty before this filing date? Find Prior Art