Chelate resin and its synthesis method

A technology of chelating resin and synthesis method, applied in chemical instruments and methods, ion exchange of chelate compounds, ion exchange and other directions, can solve the problems of unstable resin performance, poor adsorption kinetics, difficult regeneration and elution, etc. The effect of low price, good adsorption kinetics, excellent adsorption and selection performance

Inactive Publication Date: 2004-03-03
NO 718 INST NO 7 RES INST CHINA SHIPPING HEAVY IND GRP
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reagents used in these methods are highly toxic, and the properties of the prepared resin are unstable, the adsorption kinetics is poor, the adsorption capacity is small, and regeneration and elution are difficult, which affects the actual use effect.

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0014] (1) Weigh 8g of common commercially available D113 resin and put it into a conical flask, add 200ml of 30% NaOH solution thereinto, and after shaking for 3h at room temperature, filter and wash to neutrality; (2) Measure 200ml 5% CuSO 4 solution, put it into the Erlenmeyer flask, shake it at room temperature for 6 hours, and rinse it off; (3) Measure 200ml of a solution with a concentration of 2% polyethyleneimine (molecular weight: 75,000), add it to the Erlenmeyer flask, shake it at room temperature for 12 hours, and rinse it out. (4) measure 150ml concentration and be 5% glutaraldehyde solution, add in the Erlenmeyer flask, shake at normal temperature after 12 hours, rinse clean; (5) use 5N H respectively 2 SO 4 solution and 2N NH 3 ·H 2 After O washing transformation, rinse to neutral with distilled water, promptly make chelating resin.

[0015] This chelating resin is under the condition that pH is 4.5, to Cu 2+ The saturated adsorption capacity can reach 0.84...

Embodiment 2

[0017] (1) Weigh 5g of Amberllte XAD-7HP (polymethyl acrylate adsorption resin), put it into a conical flask, add 200ml of 20% NaOH solution therein, and hydrolyze it at 65°C for 3h, then filter and wash it to neutral;

[0018] (2) Measure 200ml of CuSO with a concentration of 7% 4 Add the solution into the Erlenmeyer flask, shake it at room temperature for 6 hours, and rinse it off;

[0019] (3) Measure 200ml concentration of 5% polyethyleneimine (molecular weight is 75000) solution, add it into the Erlenmeyer flask, shake it at room temperature for 12 hours, and rinse it;

[0020] (4) Measure 150ml of glutaraldehyde solution with a concentration of 10%, add it to the Erlenmeyer flask, and shake it at room temperature for 12 hours;

[0021] (5) Use 2N H 2 SO 4 solution and 2N NH 3 ·H 2 After O washing transition, distilled water is washed to neutrality, promptly makes chelating resin.

[0022] This chelating resin is under the condition that pH is 4.1, to UO 4 2+ The...

Embodiment 3

[0024] (1) Weigh 5g of Amberlite XAD-7HP (polymethyl acrylate adsorption resin), put it into a conical flask, add 200ml of 30% NaOH solution therein, hydrolyze it at 95°C for 2h, and then filter it to neutral;

[0025] (2) Measure 200ml of CuSO with a concentration of 5% 4 Add the solution to the Erlenmeyer flask, shake it at room temperature for 6 hours, and rinse it off;

[0026] (3) Measure 200 m of polyethyleneimine (molecular weight: 20,000) solution with a concentration of 3%, add it to a conical flask, shake it at room temperature for 6 hours, and rinse it;

[0027] (4) Take 150ml of glutaraldehyde with a concentration of 5% to dissolve, add to the Erlenmeyer flask, and shake at room temperature for 12h.;

[0028] (5) Use 2N H 2 SO 4 solution and 2N NH 3 ·H 2 After the transformation of O washing, distilled water is washed to neutrality, promptly makes novel chelating resin.

[0029] This chelating resin is under the condition that pH is 5, to Cd 2+ The saturate...

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

PropertyMeasurementUnit
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to view more

Abstract

A chelated resin is prepared through chemical coating the water-soluble heavy metal ion adsorbent on the surface of macroreticular resin, and chemical cross-linking. Its advantages are high adsorption performance and easy elution. It can be used for cleaning sewage and industrial tail gas.

Description

technical field [0001] The invention relates to the technical field of ion exchange resin preparation, in particular to a chelating resin and a synthesis method. Background technique [0002] At present, there are many kinds of chelating resins made of styrene resins. Such as U.S. Patent USA-4002564 and USA-4818773, disclose a kind of synthetic method of the macroporous amine alkyl phosphoric acid resin that is used for metal ion removal in the waste water, Chinese patent 871037599 discloses a kind of polystyrene resin and ethylpyridine reaction A method for preparing a novel functional resin. The reagents used in these methods are highly toxic, and the obtained resin has unstable properties, poor adsorption kinetics, small adsorption capacity, difficult regeneration and elution, and affects the actual use effect. Contents of the invention [0003] The object of the present invention is to provide a resin with stable performance, good adsorption kinetics, large adsorptio...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J45/00C08J5/20
Inventor 陈兆文范海明
Owner NO 718 INST NO 7 RES INST CHINA SHIPPING HEAVY IND GRP
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