Check patentability & draft patents in minutes with Patsnap Eureka AI!

Sulfur/selenium bridge asphalt porous polymer and preparation method thereof

A technology of porous polymers and asphalt, which is applied in the direction of separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as difficult to obtain high-value utilization, unutilized waste, and low efficiency of waste utilization, and achieve the goal of preparation process Environmental protection, low price and low cost effect

Active Publication Date: 2021-07-02
XIAMEN UNIV
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, sulfur is also a bulk waste produced in the hydrodesulfurization process of crude oil. The global annual output of sulfur alone can reach 700 million tons. Except for a small amount of sulfur used for rubber vulcanization and sulfuric acid production, most of it is not used and is difficult to produce. get high value utilization
In the past, the reuse process of hazardous waste and by-products can only achieve high-value utilization of a single waste, and the efficiency of waste utilization is low

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
  • Sulfur/selenium bridge asphalt porous polymer and preparation method thereof
  • Sulfur/selenium bridge asphalt porous polymer and preparation method thereof
  • Sulfur/selenium bridge asphalt porous polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation specific surface area is 209m 2 / g, the pore volume is 0.16cm 3 / g of sulfur-bridged asphalt porous polymer.

[0027] The present embodiment adopts following formula:

[0028] Asphalt: 0.18g

[0029] Elemental sulfur: 0.02g

[0030] Diphenylsulfone: 0.40g

[0031] Prepare sulfur bridge asphalt porous polymer with above-mentioned formula composition according to following method:

[0032] 1. Add a certain amount of bitumen, elemental sulfur and diphenyl sulfone into a mortar, mix well, grind thoroughly, transfer to a glass test tube with a narrow neck, and seal the glass test tube under vacuum.

[0033] 2. Put the sealed glass tube containing the reaction materials described in step 1 in a self-made salt bath, react at 300°C for 5 hours, and continue to react for 5 hours after raising the temperature to 350°C. After the reaction, the glass tube was taken out and cooled to room temperature naturally.

[0034] 3. The reaction mixture in step 2 was se...

Embodiment 2

[0036]The preparation specific surface area is 541m 2 / g, the pore volume is 0.45cm 3 / g of sulfur-bridged asphalt porous polymer.

[0037] The present embodiment adopts following formula:

[0038] Asphalt: 0.16g

[0039] Elemental sulfur: 0.04g

[0040] Diphenylsulfone: 0.40g

[0041] Prepare sulfur bridge asphalt porous polymer with above-mentioned formula composition according to following method:

[0042] 1. Add a certain amount of bitumen, elemental sulfur and diphenyl sulfone into a mortar, mix well, grind thoroughly, transfer to a glass test tube with a narrow neck, and seal the glass test tube under vacuum.

[0043] 2. Put the sealed glass tube containing the reaction materials described in step 1 in a self-made salt bath, react at 300°C for 5 hours, and continue to react for 5 hours after raising the temperature to 350°C. After the reaction, the glass tube was taken out and cooled to room temperature naturally.

[0044] 3. The reaction mixture in step 2 was seq...

Embodiment 3

[0046] The preparation specific surface area is 494m 2 / g, the pore volume is 0.38cm 3 / g of sulfur-bridged asphalt porous polymer.

[0047] The present embodiment adopts following formula:

[0048] Asphalt: 0.14g

[0049] Elemental sulfur: 0.06g

[0050] Diphenylsulfone: 0.40g

[0051] Prepare sulfur bridge asphalt porous polymer with above-mentioned formula composition according to following method:

[0052] 1. Add a certain amount of bitumen, elemental sulfur and diphenyl sulfone into a mortar, mix well, grind thoroughly, transfer to a glass test tube with a narrow neck, and seal the glass test tube under vacuum.

[0053] 2. Put the sealed glass tube containing the reaction materials described in step 1 in a self-made salt bath, react at 300°C for 5 hours, and continue to react for 5 hours after raising the temperature to 350°C. After the reaction, the glass tube was taken out and cooled to room temperature naturally.

[0054] 3. The reaction mixture in step 2 was se...

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sulfur / selenium bridge asphalt porous polymer and a preparation method thereof, and relates to porous polymers. The sulfur / selenium bridge asphalt porous polymer is prepared from the following raw materials in parts by mass: 6-9 parts of a substrate raw material, 4-1 part of a cross-linking agent and 20 parts of diphenyl sulfone, and the cross-linking agent is elemental sulfur or elemental selenium. The substrate raw material is selected from coal pitch and the like. The preparation method comprises the following steps: 1) preparing raw materials: weighing a certain amount of asphalt, elemental sulfur / selenium and diphenyl sulfone in proportion, adding into a mortar, uniformly mixing, fully grinding, transferring into a glass test tube, and sealing the glass test tube in a vacuumized state; 2) preparing a sulfur / selenium bridge asphalt porous polymer; and 3) sequentially extracting the product obtained in the step 2) by using tetrahydrofuran and carbon disulfide, and drying to obtain the sulfur / selenium bridge asphalt porous polymer. The sulfur / selenium bridge asphalt porous polymer can be applied to preparation of gas adsorbents, gas storage and the like. The preparation method has the advantages of simple raw material formula, no catalyst, no special requirement on production equipment and simple process. The preparation method is low in cost, non-toxic and more environment-friendly.

Description

technical field [0001] The invention relates to porous polymers, in particular to a method for cross-linking asphalt with sulfur or selenium simple substance through C-H insertion reaction to obtain a sulfur / selenium bridge asphalt porous polymer with high specific surface area and a preparation method thereof. Background technique [0002] Coal tar pitch refers to the residue after distillation to remove the liquid fraction during the distillation of coal tar. Coal tar pitch is mainly composed of polycyclic, fused-ring aromatic hydrocarbons and their derivatives, especially carcinogenic polycyclic aromatic hydrocarbons such as benzopyrene, which are one of the main sources of such pollutants in the environment. [0003] At present, coal tar pitch is mainly used in the preparation of porous carbon materials. Chinese patent CN111547721A discloses a method for preparing mesoporous activated carbon for supercapacitors; the method uses coal tar pitch and carboxymethyl cellulose...

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): B01J20/26B01J20/30B01D53/02
CPCB01J20/267B01D53/02B01J2220/4812B01J2220/4806B01D2253/202
Inventor 李磊狄托孟照辉夏云霞
Owner XIAMEN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com