A kind of preparation method of amidoxime polyacrylonitrile fiber for adsorbing uranium
A technology of polyacrylonitrile fiber and amidoxime is applied in the field of preparation of amidoxime polyacrylonitrile fiber, which can solve the problems of being complicated and difficult to realize industrialization, and achieve the effects of improving specific surface area and improving economy.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0036] A kind of amidoxime polyacrylonitrile fiber for adsorbing uranium of the present invention and preparation method thereof, comprises the following steps:
[0037] 1. Configure 25wt% PAN / DMSO solution (solution A);
[0038] 2. Prepare 8wt% PAO / DMSO solution (solution B);
[0039] 3. Mix solution A and solution B according to a certain ratio, add a pore-forming agent, and stir evenly to obtain a spinning stock solution;
[0040] 4. Spinning the spinning dope to obtain porous PAO fibers.
[0041] As in the above-mentioned preparation method, the 25wt% PAN / DMSO solution is to add the completely dry PAN powder of the corresponding quality into the DMSO solution, and mechanically stir at 300r / min until the dissolution is complete. During the stirring process, it should be completely sealed to avoid Water vapor mixes into the solution.
[0042] The PAN powder contains at least the first monomer; or further, also contains the second monomer, or the second monomer and the thi...
Embodiment 1
[0053] A kind of amidoxime polyacrylonitrile fiber that can absorb uranium and its preparation method, configure 25wt% PAN / DMSO solution, add the completely dry PAN powder of corresponding quality into the DMSO solution, mechanically stir 300r / min until it dissolves completely, Keep completely sealed during stirring.
[0054] Prepare 8wt% PAN / DMSO solution, add the corresponding mass of completely dry PAN powder into the DMSO solution, stir mechanically at 300r / min until it is completely dissolved, and seal it completely during the stirring process. Use a small amount of water to dissolve the corresponding quality of hydroxylamine hydrochloride (polyacrylonitrile and hydroxylamine hydrochloride are configured at a molar ratio of 1:1), adjust the pH to 6 with ammonia water, and then slowly add it to the 8wt% PAN / DMSO solution with high-speed mechanical stirring several times with a syringe , stir until completely dissolved, and keep completely airtight during the stirring proce...
Embodiment 2
[0058] A kind of amidoxime polyacrylonitrile fiber that can absorb uranium and its preparation method, configure 25wt% PAN / DMSO solution, add the completely dry PAN powder of corresponding quality into the DMSO solution, mechanically stir 300r / min until it dissolves completely, Keep completely sealed during stirring.
[0059] Prepare an 8wt% PAN / DMSO solution, add the corresponding mass of completely dry polyacrylonitrile powder into the dimethyl sulfoxide solution, and mechanically stir at 300r / min until the solution is completely dissolved. During the stirring process, it must be completely sealed. Use a small amount of water to dissolve the corresponding quality of hydroxylamine hydrochloride (polyacrylonitrile and hydroxylamine hydrochloride are configured at a molar ratio of 1:1), adjust the pH to 6 with ammonia water, and then slowly add it to the 8wt% PAN / DMSO solution with high-speed mechanical stirring several times with a syringe , stir until completely dissolved, an...
PUM
| Property | Measurement | Unit |
|---|---|---|
| adsorption capacity | aaaaa | aaaaa |
| adsorption capacity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More 
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
