Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing adsorption material for selectively separating palladium ions and product

A technology for adsorbing materials and palladium ions, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of complex process conditions and high cost, and achieve the effect of good selectivity and high adsorption rate

Inactive Publication Date: 2019-11-01
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses carboxyl adsorption properties, but its disclosed technical solutions all use polymer materials, with high cost and complicated process conditions

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
  • Method for preparing adsorption material for selectively separating palladium ions and product
  • Method for preparing adsorption material for selectively separating palladium ions and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method for selectively separating palladium ion adsorption materials, comprising the steps of:

[0030] 1) Add 60g of chromatographic silica gel and 500mL of 6mol / L hydrochloric acid solution into a 1000mL three-neck flask, heat to 110°C, stir and reflux for 8h, wash it with a large amount of deionized water until neutral after the reaction is completed, and place it at 110°C Dry for 12h to obtain activated silica gel.

[0031] 2) Disperse 25g of activated silica gel in 400mL of toluene solution, add 25mL of γ-aminopropyltriethoxysilane under stirring conditions, and finally add 5mL of aniline, and stir and reflux for 24 hours under the condition of heating to 110°C. After filtration, the solid was dried in a drying oven at 110°C for 12 hours to obtain amino silica gel;

[0032] 3) Disperse 0.85g of graphene oxide in 350mL, N,N dimethylformamide solution, ultrasonically disperse graphene oxide for 30min, then add 25g of amino silica gel and 2.0g of DCC, a...

Embodiment 2

[0038] A preparation method for selectively separating palladium ion adsorption materials, comprising the steps of:

[0039] 1) The preparation of the activated silica gel is the same as described in step 1) of Example 1.

[0040] 2) The preparation of the amino silica gel is the same as described in step 2) of Example 1.

[0041] 3) Disperse 0.85g of graphene oxide in 350mL N,N dimethylformamide solution, ultrasonically disperse graphene oxide for 30min, then add 85g of amino silica gel and 2.0g of DCC, heat in an oil bath at 60°C Stir for 3 days, after the reaction is completed, wash and filter repeatedly with absolute ethanol, and dry in a vacuum oven at 60°C for 12 hours to obtain SiO 2 @GO;

[0042] 4) Add 5gSiO 2 @GO was dispersed in 250mL of toluene solution, and 2.5mL of N-aminoethyl-γ-aminopropyltriethoxysilane and 5mL of γ-mercaptopropyltrimethoxysilane were added to a small beaker to prepare a mixed solution. Slowly add the mixed solution under low temperature, ...

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
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing an adsorption material for selectively separating palladium ions and a product. The method comprises the following steps: firstly, activating silica gelby using an acid, further enabling gamma-aminopropyl triethoxy silane and phenylamine to activated silica gel so as to carry amino, that is, SiO2-NH2, on the surface of the silica gel, further supporting graphene oxide on the surface of the SiO2-NH2, introducing double bonds and sulfydryl to the surface of a composite material by using a chemical grafting method, and finally performing process steps of palladium ion adsorption, polymerization, palladium elution, and the like, so as to obtain a palladium imprinted polymer with selective adsorption upon palladium ions. Experiment verification shows that the adsorption material prepared by using the method has a remarkable recognition property and affinity upon palladium ions.

Description

technical field [0001] The invention belongs to the field of separation, recovery and utilization of palladium ions, and in particular relates to a preparation method and a product of an adsorption material for selectively separating palladium ions. Background technique [0002] The main source of palladium-containing waste liquid is electroplating waste liquid such as activation and passivation in the process production of various electronic industries. The waste liquid is weakly acidic and the palladium content is ~50ppm. Palladium, gold and other precious metal production waste liquid contains ~ 10ppm of palladium. The workpiece cleaning wastewater after the metallization of printed circuit board holes, plastic electroplating and various non-metallic electroplating activation also contains a certain amount of palladium, and its content is ~ 1ppm. The study found that a large amount of palladium-containing waste liquid in the electroplating industry is discharged as ordin...

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): B01J20/20B01J20/30
CPCB01J20/103B01J20/20
Inventor 李敏冯建肖鹏蒋松山孟晓静唐思
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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