Preparation method for recyclable magnetic absorbing material used for heavy metal treatment

A technology for magnetic adsorption materials and heavy metals, applied in alkali metal compounds, water/sewage treatment, chemical instruments and methods, etc., to achieve the effect of removing heavy metals, good adsorption performance, and simple operation

Active Publication Date: 2019-04-19
湘潭中环水务有限公司
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experimental studies have found that chitosan is ineffective against heavy metal Sb(Ⅲ)

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
  • Preparation method for recyclable magnetic absorbing material used for heavy metal treatment
  • Preparation method for recyclable magnetic absorbing material used for heavy metal treatment
  • Preparation method for recyclable magnetic absorbing material used for heavy metal treatment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] A kind of preparation method of the recyclable magnetic adsorption material that is used for heavy metal treatment, is the preparation method of the composite material CMC that is used for heavy metal treatment, comprises the steps:

[0035] S1: the nano-Fe 3 o 4 Ultrasonic dispersion in a three-necked flask containing deionized water to form Suspension A;

[0036]Dissolve MOFs and CS in a beaker and stir well to form a stable suspension B. The mass ratio of MOFs and CS is 1:4 to 4:1. In practice, the mass ratio of MOFs and CS can be selected as 1:4 or 1:2 , 1:1, 2:1 or 4:1;

[0037] S2: According to Fe 3 o 4 The mass ratio of CS to CS is 1:4~4:1, inject the suspension B into the suspension A drop by drop, and stir rapidly to form a uniform and stable suspension, and then add pure N 2 The reaction solution is completely deoxygenated by bubbling, and during specific implementation, Fe 3 o 4 The mass ratio to CS can be selected as 1:4, 1:2, 1:1, 2:1 or 4:1;

[003...

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

No PUM Login to view more

Abstract

The invention relates to a preparation method for a recyclable magnetic absorbing material used for heavy metal treatment. According to the method, atoxic chitosan (CS) is selected as a carrier, Fe3O4and MOFs materials are loaded on the surface of the carrier to synthesize a novel composite material, wherein the mass ratio of the MOFs and the CS is 1:4-4:1, the mass ratio of the Fe3O4 and the CSis 1:4-4:1, 2,2-aza bis (2-imidazoline) dihydrochloride is adopted as an initiator to be stirred for 30 min-150 min in a thermostatic water bath at the temperature of 40 DEG C-80 DEG C, and the concentration of the initiator is 0.5 mmoL L-1-1.5 mmoL L-1; finally purification is conducted for multiple times, separation is conducted by using a magnet, the mixture is placed into a vacuum oven to be dried in a vacuum environment until there exists no moisture, and a composite material CMC is obtained. The prepared CMC is a magnetically organic and inorganic combined composite material with betterperformance, the operation of the magnetic composite material synthesized by means of the method is simple, toxic and harmful substances are not generated in the production process, the price of raw materials is low, the raw materials can be recycled through an external magnetic field, and the cost is greatly saved.

Description

technical field [0001] The invention relates to the field of energy and environmental protection, in particular to the preparation of a recyclable magnetic adsorption material used for heavy metal treatment. Background technique [0002] With the rapid development of industry, pollutants such as heavy metals and dyes have caused serious water pollution problems. Antimony (Sb) is a metalloid element with potential toxicity and carcinogenicity, which widely exists in human living environment. At present, antimony pollution has become a serious global problem, and its pollution sources mainly come from the burning of fossil fuels and antimony-containing wastes and mining activities. The annual production of diodes, batteries and flame retardants worldwide will consume a large amount of antimony, causing serious antimony pollution problems. The mining and smelting of antimony is also likely to cause serious soil pollution, which poses certain health threats to residents in the...

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
no application Login to view more
IPC IPC(8): B01J20/28B01J20/30B01J20/24C02F1/28C02F101/20
CPCB01J20/04B01J20/226B01J20/24B01J20/28009C02F1/281C02F1/285C02F1/286C02F2101/20
Inventor 朱国成詹浩
Owner 湘潭中环水务有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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