Unlock instant, AI-driven research and patent intelligence for your innovation.
A kind of oil-water separation filter screen and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of oil-water separation and filter screen, which is applied in the direction of separation methods, liquid separation, chemical instruments and methods, etc., can solve the problems of complex preparation process, low separation recovery rate, secondary pollution, etc. High, good effect and well tolerated effect
Active Publication Date: 2022-03-01
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the preparation process of the electrospinning method is relatively complicated, and the production of a large area is time-consuming and costly. Especially for the separation and recovery of highly viscous oil stains, the recovery rate is low, which may easily cause membrane blockage and secondary pollution.
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0026] The invention provides a method for preparing an oil-water separation filter screen, comprising the following steps:
[0027] a) N,N-diethylacrylamide, [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl)ammonium hydroxide, crosslinking agent and initiator in Mix well in water, pass nitrogen gas to remove oxygen, and place at 1°C to 5°C to obtain gel prepolymerization liquid;
[0028] b) immersing the copper mesh in the gel pre-polymerization solution obtained in step a), and performing in-situ polymerization to obtain an oil-water separation filter.
[0029] In the present invention, N,N-diethylacrylamide, [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl) ammonium hydroxide, crosslinking agent and initiator Mix evenly in water, pass nitrogen gas to remove oxygen, and place at 1°C to 5°C to obtain gel prepolymerization liquid. In the present invention, the N,N-diethylacrylamide (DEA) and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid propyl)ammon...
Embodiment 1
[0054] (1) Mix N,N-diethylacrylamide (DEA) (35.34g) and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfonic acid) in a molar ratio of 4:1 Acid propyl) ammonium hydroxide (DMAPS) (64.42g), with 0.3g methylene bisacrylamide (BIS), 0.9g ammonium persulfate, dissolved in 300mL deionized water, stirred at room temperature (about 25°C) until fully dissolved , and then purged with nitrogen to remove oxygen, and stored at 4°C to obtain a gel prepolymer solution.
[0055] (2) Soak the copper mesh in 1wt% dilute hydrochloric acid for 2min to remove surface oxides, then clean it with deionized water and dry it naturally to obtain the pretreated copper mesh; then the pretreated copper mesh Immerse in the gel pre-polymerization solution obtained in step (1), and in-situ polymerize at room temperature (about 25°C) for 5 minutes to obtain a hydrogel (D8S2 for short) modified hydrophilic filter, that is, an oil-water separation filter.
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
Property
Measurement
Unit
separation
aaaaa
aaaaa
Login to View More
Abstract
The invention provides an oil-water separation filter screen and a preparation method thereof. The preparation method comprises the following steps: a) mixing N,N-diethylacrylamide, [2-(methacryloyloxy)ethyl] di Methyl-(3-sulfonic acid propyl) ammonium hydroxide, crosslinking agent and initiator are mixed in water, and placed at 1°C to 5°C after purging nitrogen to remove oxygen to obtain a gel prepolymer solution; b) The copper mesh is immersed in the gel pre-polymerization solution obtained in step a) to carry out in-situ polymerization to obtain an oil-water separation filter. The oil-water separation filter is obtained by quickly modifying the copper mesh with a wide-salt range, super-hydrophilic, and constant swelling hydrogel. The preparation method is simple and efficient, and the film-forming stability is good. The prepared oil-water separation filter has a On the basis of excellent oil-water separation function, it has wide applicability in salt area, which makes the range of oil-water separation broaden to the field of salt solution with different concentrations. At the same time, it also has high recovery efficiency for oil pollutants with high viscosity, which can be applied to The complex and changing field of industrial wastewater separation.
Description
technical field [0001] The invention relates to the technical field of separation of polymer substances, and more specifically relates to an oil-water separation filter screen and a preparation method thereof. Background technique [0002] In recent years, the massive discharge of domestic wastewater and industrial high-salt oily wastewater has caused great damage to the human living environment and natural ecological environment; Such pollution poses severe challenges to the ecological environment of rivers and oceans, especially local large-scale river and ocean oil body pollution needs to be quickly resolved in a short period of time to prevent the expansion of the scope of pollution. Therefore, in order to solve the problem of oil pollution in complex and changeable water environments, the development of technologies for rapidly preparing oil-water separation equipment with high separation efficiency and wide applicability has become a global topic of widespread concern....
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
