Preparation method of high-performance composite membrane used for water treatment
A composite membrane, high-performance technology, applied in the direction of osmosis/dialysis water/sewage treatment, chemical instruments and methods, membrane technology, etc., can solve the problem without considering the influence of phenolic antioxidant flux and retention rate, without considering chlorine resistance Sexuality, antibacterial and other issues, to achieve long-term stable hydrophilicity, excellent antibacterial effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0024] A method for preparing a high-performance composite membrane for water treatment, the steps are as follows:
[0025] (1) Preparation of aqueous phase reaction solution: prepare a copper chloride aqueous solution with a concentration of 0.5wt%, and obtain a clear and translucent solution after the dissolution is complete. Add an equal stoichiometric sodium hydroxide aqueous solution to the solution drop by drop until the pH of the solution reaches 7 up to; add m-phenylenediamine in this solution, make its concentration be 3wt%, then stir 30min at 30 ℃;
[0026] (2) Prepare the organic phase reaction solution: add trimesoyl chloride to n-hexane solvent to make the concentration of trimesoyl chloride 0.1wt%, and after the solution is completely dissolved at room temperature, put it into a closed container and fill it with nitrogen to store it for later use;
[0027] (3) Composite membrane coating: The porous support membrane is a polysulfone flat membrane scraped on the no...
Embodiment 2
[0031] A method for preparing a high-performance composite membrane for water treatment, the steps are as follows:
[0032] (1) Preparation of aqueous phase reaction solution: prepare a zinc chloride aqueous solution with a concentration of 0.5wt%, and obtain a clear and translucent solution after complete dissolution, and add an equal stoichiometric sodium hydroxide aqueous solution drop by drop to the solution system pH Up to 7, add piperazine to the solution to make the concentration 3wt%, and stir at 20°C for 60min;
[0033] (2) Prepare the organic phase reaction solution: add biphenyltetrayl chloride to the n-heptane solvent to make the concentration 3wt%, and after it is completely dissolved at room temperature, put it into a closed container and store it with nitrogen gas;
[0034] (3) Composite membrane coating: The porous support membrane is a dry-wet spinning polysulfone hollow fiber membrane. Completely immerse the porous support membrane in the aqueous phase react...
Embodiment 3
[0038] A method for preparing a high-performance composite membrane for water treatment, the steps are as follows:
[0039] (1) Prepare the aqueous phase reaction solution: prepare a mixed aqueous solution of magnesium chloride and copper chloride with a concentration of 4wt% (mass ratio = 25%: 75%), and obtain a clear and translucent solution after the dissolution is complete. Add the solution drop by drop, etc. Stoichiometric sodium hydroxide aqueous solution, until the pH of the solution system reaches 7, add o-phenylenediamine to the solution to make the concentration 4wt%, and stir at 40°C for 45min;
[0040] (2) Prepare the organic phase reaction solution: add isophthaloyl chloride to the mixed solvent of n-heptane and n-hexane (volume ratio = 10%:90%) to make the concentration 0.6wt%, and dissolve it completely at room temperature , into an airtight container, filled with nitrogen for storage.
[0041] (3) Composite membrane coating: The porous support membrane is a bl...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com