LDH (layered double hydroxide) microspheres for sewage treatment and preparation method
A layered bimetallic and hydroxide technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as difficult removal of heavy metals, achieve excellent adsorption and prevent shedding effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0028] (1) Preparation of iron-calcium layered double metal hydroxide: After mixing 18mol of calcium chloride and 6mol of ferric chloride in an aqueous solution, add N-methylpyrrolidone dispersant and 7.5mol (molar amount (calculated as carbon) graphene, then add 0.2mol urea precipitant, 140 degrees Celsius hydrothermal reaction for 5 days to obtain iron-calcium layered double metal hydroxide containing graphene, centrifuge after cooling, wash with water to pH7.0, alcohol Wash 2 times and dry; (2) fixation of graphene-containing iron-calcium layered double hydroxide: mix the graphene-containing iron-calcium layered double hydroxide with 300g Molten waste glass is sprayed and collided to form layered double hydroxide microspheres fixed by microporous glass.
[0029]Get 200g of prepared microspheres of layered double metal hydroxide fixed by microporous glass and drop into 10L of aqueous solution with lead content 0.5mg / L, mercury content 0.1mg / L, chromium content 0.2mg / L, stir ...
Embodiment 2
[0031] (1) Preparation of iron-calcium layered double metal hydroxide: After mixing 15 mol of calcium chloride and 6 mol of ferric sulfate in an aqueous solution, add N-methylpyrrolidone dispersant and 7.5 mol (mole Carbon meter) graphene, then add 0.2mol urea precipitant, 150 degrees Celsius hydrothermal reaction for 4 days to obtain graphene-containing iron-calcium layered double metal hydroxide, after cooling, centrifuge, wash with water to pH7.0, wash with alcohol 2 times, drying; (2) fixation of graphene-containing iron-calcium layered double hydroxides: the iron-calcium layered double hydroxides containing graphene after step (1) was dried with 300g of molten The waste glass was collided by spray method to form layered double metal hydroxide microspheres fixed by microporous glass.
[0032] Get 200g of prepared microspheres of layered double metal hydroxide fixed by microporous glass and drop into 10L of aqueous solution with lead content 0.5mg / L, mercury content 0.1mg / L...
Embodiment 3
[0034] (1) Preparation of iron-calcium layered double metal hydroxide: After mixing 18mol of calcium chloride and 6mol of ferric chloride in an aqueous solution, add N-methylpyrrolidone dispersant and 7.5mol (molar amount (calculated as carbon) graphene, then add 0.2mol hexamethylenetetramine precipitant, 155 degrees centigrade hydrothermal reaction for 4 days to obtain iron-calcium layered double metal hydroxide containing graphene, centrifuge after cooling, wash with water until pH 7.0, washed twice with alcohol and dried; (2) Fixation of graphene-containing iron-calcium layered bimetallic hydroxide: The graphene-containing iron-calcium layered bimetallic hydroxide after step (1) was dried Hydroxide and 300g of molten waste glass are sprayed and collided to form microspheres of layered double metal hydroxide fixed by microporous glass.
[0035] Get 200g of prepared microspheres of layered double metal hydroxide fixed by microporous glass and drop into 10L of aqueous solution...
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