Preparation method of vanadium pentoxide adsorbent

A vanadium pentoxide and adsorbent technology, which is applied in the field of anion exchange resin preparation, can solve the problems of affecting the use effect of industrial devices, affecting the uniformity of polymerization, and reducing the strength of resin, so as to achieve enhanced binding force, prolong service life, and improve efficiency effect

Active Publication Date: 2015-11-18
广州鑫材科技有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used ion exchange resins in the vanadium extraction industry are traditional polystyrene-based anion exchange resins such as D201, D301, and D290. However, the actual adsorption capacity of ion exchange resins for vanadium extraction is still low, and is generally low in practical applications. less than 90mg / g; the resin can easily reach the saturated adsorption capacity during use, and needs to be regenerated and updated frequently, resulting in a higher total cost of vanadium extraction
The method of using organic amine and vanadium compound to participate in the polymerization reaction will affect the uniformity of polymerization, resulting in the reduction of resin strength after long-term use, which affects the use effect in industrial devices

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 of vanadium pentoxide adsorbent
  • Preparation method of vanadium pentoxide adsorbent
  • Preparation method of vanadium pentoxide adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1. Preparation of the water phase

[0030] In parts by weight, add 100 parts of pure water and 1.5 parts of gelatin into the pressure reaction vessel, and stir evenly.

[0031] Step 2. Preparation of the oil phase

[0032] Mix the oil phase components in the following proportions in a beaker and stir evenly;

[0033]

[0034] Step 3. Suspension polymerization

[0035] Add the oil phase solution prepared in the beaker in step 1.2 to the pressure reaction kettle with the prepared water phase in step 1.1, react at 90°C for 15 hours, discharge after the reaction, discharge after the reaction, and wash the microspheres to The water is clear and the product white ball is obtained.

[0036] Step 4. Chloromethylation reaction

[0037] In a 500L reactor, immerse 100Kg of white balls in 300Kg of chloromethyl ether, add 30Kg of zinc chloride as a catalyst, and carry out the chloromethylation reaction at 40℃ for 24h to obtain low chloromethylation. Crosslinked macroporous polystyrene-di...

Embodiment 2

[0041] Step 1. Preparation of the water phase

[0042] In parts by weight, add 100 parts of pure water and 2 parts of gelatin into the pressure reactor, and stir evenly.

[0043] Step 2. Preparation of the oil phase

[0044] Mix the oil phase components in the following proportions in a beaker and stir evenly;

[0045]

[0046] Step 3. Suspension polymerization

[0047] Add the oil phase solution prepared in the beaker in step 1.2 to the pressure reaction kettle with the prepared water phase in step 1.1, and react at 70°C for 24 hours. After the reaction, the material is discharged. After the reaction, the material is discharged and the microspheres are washed with water. The water is clear and the product white ball is obtained.

[0048] Step 4. Chloromethylation reaction

[0049] In a 500L reactor, immerse 100Kg of white balls in 500Kg of chloromethyl ether, add 20Kg of zinc chloride as a catalyst, and carry out the chloromethylation reaction at 45°C for 15h to obtain low chloromethyla...

Embodiment 3

[0053] Step 1. Preparation of the water phase

[0054] In parts by weight, add 100 parts of pure water and 0.5 parts of polyvinyl alcohol into the pressure reactor, and stir evenly. Step 2. Preparation of the oil phase

[0055] Mix the oil phase components in the following proportions in a beaker and stir evenly;

[0056]

[0057] Step 3. Suspension polymerization

[0058] Add the oil phase solution prepared in the beaker in step 1.2 to the pressure reaction kettle containing the prepared water phase in step 1.1, and react at 110°C for 10 hours. After the reaction, the material is discharged, and the material is discharged after the reaction. The water is clear and the product white ball is obtained.

[0059] Step 4. Chloromethylation reaction

[0060] In a 500L reactor, soak 100Kg of white balls in 200Kg of chloromethyl ether, add 50Kg of zinc chloride as a catalyst, and carry out the chloromethylation reaction at a temperature of 20°C for 40h to obtain chloromethylation Low-crosslin...

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 provides a preparation method of a vanadium pentoxide adsorbent. A comonomer N-(4-bromophemyl) maleimide, 1,1-difuoro-2,2-dichloroethylene and 1,1,3,3,3-pentafluoride-1-propylene are added to styrene in cross-linked polymerization, a polymer with an imide group and a fluorine element on a framework is generated, and anion exchange resin containing amido and an imide group is prepared after chloromethylation and amination reactions and the like. The imide group is introduced on the framework of the polymer, the amination reaction efficiency is improved, the binding force of the resin and anions containing vanadium is increased, and the adsorption capacity is improved. The fluorine element increases the corrosion resistance of the framework of the resin, the surface of a sphere is protected, accordingly, the service life is prolonged, and the application range of the adsorption material is widened. The preparation method is used for extracting vanadium pentoxide, and the prepared vanadium pentoxide adsorbent has the advantages of high content of functional groups, high adsorption capacity, long service life and the like.

Description

Technical field [0001] The invention relates to a preparation method of anion exchange resin, in particular to a preparation method of vanadium pentoxide adsorbent. Background technique [0002] my country began to extract vanadium from stone coal in the 1970s. The southern provinces directly extract high-grade vanadium pentoxide (w(V2O5)>98%) products from stone coal, which are exported to the United States, Japan, West Germany, Belgium and other countries, and have achieved great results. In the early 1970s, my country conducted a series of experiments on extracting vanadium by ion exchange. By the early 1990s, the process of extracting vanadium from stone coal by 717 ion exchange resin method had been applied in production in Tongcheng, Danjiangkou, Hubei and other places. At present, the ion exchange method has also been successfully used to extract vanadium from waste vanadium catalysts. The advantages of this method are short process, low consumption of raw materials, ...

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): B01J20/26B01J20/30B01J41/14C08F212/08C08F212/36C08F214/18C08F8/24C08F8/32
Inventor 王琪宇张玲
Owner 广州鑫材科技有限公司
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