Magnetic multi-effect amphiphilic particle as well as preparation method and application thereof

By using magnetic multi-performance amphiphilic particles, the problem of difficult to efficiently treat oil-containing wastewater containing partially hydrolyzed polyacrylamide in the prior art is solved, and oil-water separation and partially hydrolyzed polyacrylamide removal are achieved, and the advantages of reuse and cost reduction are achieved.

CN119707050AActive Publication Date: 2025-03-28CHINA PETROLEUM & CHEMICAL CORP +2
7 Cites 0 Cited by

Patent Information

Application Number
CN202311265347.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-03-28
Estimated Expiration
2043-09-27

AI Technical Summary

Technical Problem

The prior art is difficult to efficiently treat oily wastewater containing partially hydrolyzed polyacrylamide, especially in removing partially hydrolyzed polyacrylamide while separating oil and water.

Method used

Magnetic multi-performance amphiphilic particles are used, which consist of core-shell-separated magnetic Fe3O4 particles and a silica shell with hydrophilic and hydrophobic portions on the outer surface of the silica shell, and polydiethylaminoethyl methacrylate (PDEAEMA) is grafted on the surface to achieve adsorption and migration capture of partially hydrolyzed polyacrylamide.

Benefits of technology

The efficient treatment of oil-containing wastewater containing partially hydrolyzed polyacrylamide is achieved, and the oil-water separation and partially hydrolyzed polyacrylamide can be achieved in one step. Moreover, due to the pH sensitivity of PDEAEMA, the particles can be reused, reducing the material cost of wastewater treatment.

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

Abstract

The invention relates to the technical field of sewage treatment, and provides a magnetic multi-effect amphiphilic particle as well as a preparation method and application thereof. The magnetic multi-effect amphiphilic particle comprises a core-shell separated magnetic Fe3O4 particle inner core and a silicon dioxide shell layer, the outer surface of the silicon dioxide shell layer comprises a hydrophilic part and a hydrophobic part, and the inner surface of the silicon dioxide shell layer and the surface of the magnetic Fe3O4 particle inner core are grafted with poly (diethylaminoethyl methacrylate). And the silicon dioxide shell layer has a micro-pore structure. The magnetic multi-effect amphiphilic particle provided by the invention is wide in size distribution window, can realize submicron / micron distribution, and is uniform in particle size; the magnetic multi-effect amphiphilic particles have excellent emulsifying performance, liquid drops emulsified and stabilized by adopting the magnetic multi-effect amphiphilic particles can be controlled by an external magnetic field, enrichment and migration of oil drops are achieved, and therefore oil-water separation is achieved; and meanwhile, the adsorbent also has a selective adsorption characteristic, can selectively adsorb partial hydrolyzed polyacrylamide, and can efficiently treat oily sewage containing partial hydrolyzed polyacrylamide in one step.
Need to check novelty before this filing date? Find Prior Art