Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Separation method of oil-water emulsion

A separation method and emulsion technology, applied in the field of emulsion separation, can solve the problems of small adsorption capacity and limitation of separation membrane, and achieve the effects of fast separation speed, high recycling rate and large adsorption capacity

Inactive Publication Date: 2018-08-24
UNIV OF JINAN
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the generally small adsorption capacity of the separation membrane, it is limited in the application of continuous large-scale oil-water emulsion separation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Separation method of oil-water emulsion
  • Separation method of oil-water emulsion
  • Separation method of oil-water emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 0.180mL (200mg) of polyethylene glycol diacrylate (number average molecular weight 600), 100mg polydivinylbenzene particles (average particle size 4μm), 0.5μL N,N-dimethylaniline and 1.0mg peroxide Benzoyl was added to 1.1 mL of dimethyl sulfoxide and mixed evenly. After passing through nitrogen to deoxygenate, it was transferred to a syringe and sealed. The reaction temperature was controlled at -18°C and reacted for 48 hours. The obtained product is fully washed with the elution solvent ethanol, and then dried to obtain a composite ultra-macroporous polymer.

[0034] The scanning electron microscope picture of the composite ultra-macroporous polymer that the present embodiment makes is as follows figure 2 As shown, the schematic diagram of the oil-water emulsion separation process is shown in image 3 shown.

[0035] Put the obtained composite ultra-macroporous polymer material in a syringe, add water to swell and balance for 2 hours, add 1mL oil-water emulsio...

Embodiment 2

[0038] Take 0.36mL (400mg) of polyethylene glycol diacrylate (number average molecular weight 600), 40mg polydivinylbenzene particles (average particle size 4μm), 0.2μL N,N-dimethylaniline and 0.4mg peroxide Benzoyl was added to 1.6 mL of dimethyl sulfoxide and mixed well. After passing through nitrogen to deoxygenate, it was transferred to a syringe and sealed. The reaction temperature was controlled at -18°C and reacted for 48 hours. The obtained product is fully washed with the elution solvent ethanol, and then dried to obtain a composite ultra-macroporous polymer.

[0039] Put the obtained composite ultra-macroporous polymer material in a syringe, add water to swell and balance for 2 hours, add 1mL oil-water emulsion from the upper part of the column tube, and the oil-water emulsion can flow through the polymer column material only by gravity, and the water can pass through the polymer column smoothly. material, it takes 1 minute, while the oil is retained in the column ma...

Embodiment 3

[0041] Take 0.135mL (150mg) of polyethylene glycol diacrylate (number average molecular weight 600), 150mg polydivinylbenzene particles (average particle size 4μm), 0.8μl N,N-dimethylaniline and 1.5mg peroxide Benzoyl was added to 1.09 mL of dimethyl sulfoxide and mixed evenly. After passing through nitrogen to deoxygenate, it was transferred to a syringe and sealed. The reaction temperature was controlled at -18°C and reacted for 48 hours. The obtained product is fully washed with the elution solvent ethanol, and then dried to obtain a composite ultra-macroporous polymer.

[0042]Put the obtained composite ultra-macroporous polymer material in a syringe, add water to swell and balance for 2 hours, add 1mL oil-water emulsion from the upper part of the column tube, and the oil-water emulsion can flow through the polymer column material only by gravity, and the water can pass through the polymer column smoothly. material, it takes 1 minute, while the oil is retained in the colum...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a separation method of oil-water emulsion. The separation method comprises the following steps: carrying out freezing polymerization reaction to uniformly mix polyethylene glycol diacrylate, polydivinylbenzene particles and an initiator in a solvent; after introducing nitrogen gas to remove oxygen, transferring into an injector and sealing; controlling the reaction temperature to be -18 DEG C and reacting for 48 hours; after sufficiently washing an obtained product through an eluting solvent, carrying out oil-water emulsion separation on the product only under the action of gravity, wherein the oil-water separation efficiency can reach 99.8 percent, the oil content in water is less than 50ppm and the adsorption capacity of a polymer material on the oil-water emulsion is higher than 2.8g / g. The preparation method provided by the invention is simple and reliable and post-treatment is simple; an obtained material is used for separating the oil-water emulsion and has the advantages of rapid separation speed, high separation efficiency, good repeated utilization rate and great adsorption capacity.

Description

technical field [0001] The invention relates to a method for separating an oil-water emulsion, which belongs to the technical field of emulsion separation. Background technique [0002] Oily wastewater exists widely in all aspects of human life, from oil exploration and product development, to the impact of various types of oil spills and marine oil spills on the human living environment, from industrial wastewater discharge to human daily life. Various wastewaters pose a threat to human health. The development of materials and processes with high-efficiency separation capabilities for oily wastewater has broad application value. [0003] According to the form of oil-water composition, oily wastewater can be simply divided into two types: oil-water mixture and oil-water emulsion. At present, a large number of effective methods have been reported for the separation of oil-water mixtures, and various high-efficiency oil-water separation materials have been developed. Most o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D17/04C08G81/02
CPCB01D17/04C08G81/025
Inventor 陈志勇王银萍陈明乾匡帅潘奇伟夏方诠
Owner UNIV OF JINAN
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com