Slow-release chlorine dioxide-supporting zeolite carrier and preparation method thereof
A chlorine dioxide zeolite, slow-release technology, applied in chemical instruments and methods, botanical equipment and methods, separation methods, etc., can solve the problems of short service life, low adsorption capacity, difficult storage, etc., and achieve long service life , the release rate is stable, and the effect of increasing the adsorption effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0023] Example one
[0024] The preparation method of the slow-release solid-loaded chlorine dioxide zeolite carrier of the present invention is as follows:
[0025] (1) Prepare a mineral acid solution containing a surfactant. Surfactant is one or a mixture of sodium perfluorononoxybenzene sulfonate (OBS), sodium dodecylbenzene sulfonate, sodium lauryl sulfate, and cocamidopropyl betaine, The addition amount is 1000~5000mg / L of the total weight of the acid solution; the inorganic acid is one or a mixture of hydrochloric acid, sulfuric acid, and nitric acid, and the concentration is 0.5~5mol / L; the 0.5~3mm natural zeolite is solid-liquid After being immersed in the acid solution added with the surfactant at a weight-to-volume ratio of 1:10 to 1:20 for 1 to 2 hours, the acid-modified zeolite particles are obtained by suction filtration. The crystal structure of natural zeolite includes three parts: aluminosilicate framework, the framework contains pores and voids for exchangeable c...
Example Embodiment
[0032] Example two
[0033] The preparation method of a slow-release immobilized chlorine dioxide zeolite carrier is as follows:
[0034] (1) Prepare a solution containing 1000 mg / L of surfactant sodium perfluorononoxybenzene sulfonate (OBS) and 3 mol / L of hydrochloric acid; soak the natural zeolite of 0.5 to 1 mm in a solid-liquid weight-volume ratio of 1:10 After adding the surfactant in the acid solution for 1 to 2 hours, suction filtration to obtain acid-modified zeolite particles;
[0035] (2) Prepare a nitrate composite solution, which contains 0.2mol / L ferric nitrate, 0.2mol / L manganese nitrate, and 0.1mol / L copper nitrate. Soak the acid-modified zeolite and the nitrate solution at a solid-liquid weight-volume ratio of 1:15 for 12 hours, drain the supernatant, and calcinate at 500°C for 4 hours to obtain transition metal zeolite particles;
[0036] (3) Preparation of coating agent. Mix sodium chlorite powder, silica gel powder and diatomaceous earth at a weight ratio of 2:1:1...
Example Embodiment
[0041] Example three
[0042] The preparation method of a slow-release immobilized chlorine dioxide zeolite carrier is as follows:
[0043] (1) Prepare a mixed solution containing surfactant sodium dodecyl benzene sulfonate, sodium lauryl sulfate, sulfuric acid, and nitric acid. The concentration of sodium dodecyl benzene sulfonate is 2000 mg / L. The concentration of sodium sulfate is 1000 mg / L, the concentration of sulfuric acid is 0.5 mol / L, and the concentration of nitric acid is 0.5 mol / L; 2~3mm natural zeolite is soaked in the mixed solution at the ratio of solid-liquid weight to volume ratio of 1:15 2 Hours, suction filtration to obtain acid-modified zeolite particles;
[0044] (2) Prepare a nitrate solution containing 0.1 mol / L cerium nitrate, 0.2 mol / L manganese nitrate, and 0.2 mol / L copper nitrate, and adjust the acid-modified zeolite to the nitrate solution in a solid-liquid weight-volume ratio of 1:15 After soaking for 20 hours, drain the supernatant, and calcinate at 80...
PUM
Property | Measurement | Unit |
---|---|---|
Particle size | aaaaa | aaaaa |
Particle size | aaaaa | aaaaa |
Particle size | aaaaa | aaaaa |
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.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap