Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A kind of composite adsorption material and preparation method thereof

A technology of composite adsorption materials and materials, which is applied in the field of ternary composite adsorption materials and its preparation, can solve the problems of limited material absorption capacity, limited effect, low specific surface area of ​​adsorbents, etc. Effect

Active Publication Date: 2021-01-05
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mullite, analcite, and diatomaceous earth adsorbents used in this method have low specific surface area and limited absorption capacity for various organic molecular pollutants.
At the same time, the yeast used cannot adsorb or degrade inorganic metal ions
CN201510688988.X provides a modified walnut shell activated carbon adsorbent and its preparation method, which is mainly used for the adsorption and removal of heavy metal ions, and has limited effect on organic pollutants
[0005] The adsorption materials used in the existing adsorption method to treat industrial sewage generally have the following disadvantages: the saturated adsorption capacity of different adsorption materials is different, and it is limited by the pore structure and surface structure of the adsorbent. It is difficult for a single-character adsorption material to achieve broad spectrum performance. Ground treatment of a wide variety of organic and inorganic pollutants in water bodies with different properties

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
  • A kind of composite adsorption material and preparation method thereof
  • A kind of composite adsorption material and preparation method thereof
  • A kind of composite adsorption material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Under room temperature and under mechanical stirring, silica sol, sodium hydroxide, water, organic matter M (n is 4, X 1 for Cl, X 2 Cl) mixed according to a certain ratio, then heated in closed water at 100°C for 24 hours, and cooled to room temperature. Add the reserved sodium metaaluminate into the silicon source solution and stir evenly. The final material ratio satisfies: Al 2 o 3 / SiO 2 =35, M / SiO 2 =0.20,OH - / SiO2 =0.75,H 2 O / SiO 2 =40. Afterwards, the above mixture was ultrasonically (1.0 KW / L) and magnetically stirred at 40°C for 3 hours, and then placed in a reactor for crystallization at 175°C for 70 hours. The obtained product was washed with distilled water, dried at 120°C, and then calcined at 600°C for 5 hours. It is confirmed by XRD detection that it is a eutectic of mordenite and analcime, and observed by scanning electron microscope, the eutectic is nearly spherical, with an average diameter of about 4.2 μm. The two zeolites are well disper...

Embodiment 2

[0035] Under room temperature and under mechanical stirring, ethyl silicate-40, sodium hydroxide, water, organic matter M (n is 4, X 1 for Cl, X 2 For Br) mixed according to a certain ratio, then heated in closed water at 100°C for 24 hours, and cooled to room temperature. Add the reserved aluminum sec-butoxide into the silicon source solution, and stir evenly. The final material ratio satisfies: Al 2 o 3 / SiO 2 =40, M / SiO 2 =0.45,OH - / SiO 2 =0.85, H 2 O / SiO 2 =80. The total reaction system is 100mL. Afterwards, the above mixture was ultrasonically (1.0 KW / L) and magnetically stirred at 40°C for 3 hours, and then placed in a reaction kettle for crystallization at 170°C for 100 hours. The obtained product was washed with distilled water, dried at 120°C, and then calcined at 600°C for 5 hours. It was confirmed by XRD detection that it was a eutectic of mordenite and analcime, and observed by a scanning electron microscope, the eutectic was nearly spherical, with an ...

Embodiment 3

[0037] At room temperature and under magnetic stirring, white carbon black, sodium hydroxide, water (100% of the total water), organic matter M (n is 6, X 1 for Br, X 2 For Br) mixed according to a certain ratio, then sealed water heating at 85 ℃ for 24 hours, and cooled to room temperature. Add the aluminum isopropoxide powder into the silicon source solution in batches, and stir well and evenly. The final material ratio satisfies: Al 2 o 3 / SiO 2 =40, M / SiO 2 =0.25,OH - / SiO 2 =0.9,H 2 O / SiO 2 =80. Afterwards, the above mixture was ultrasonically (1.0 KW / L) and magnetically stirred at 50°C for 3 hours, and then placed in a reaction kettle for crystallization at 185°C for 60 hours. The obtained product was washed with distilled water, dried at 120°C, and then calcined at 550°C for 5 hours. It was confirmed by XRD detection that it was a eutectic of mordenite and analcime, and observed by a scanning electron microscope, the eutectic of mordenite and analcime was nea...

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
particle sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a composite adsorption material and a preparation method thereof. The composite adsorption material is characterized in that the composite adsorption material comprises, by weight, 5%-50% of pulverized coal ash, 10%-50% of activated carbon and 10%-60% of analcite and mordenite eutectic, wherein the pulverized coal ash and the eutectic are connected through the activated carbon; specific surface area of the composite adsorbent is 300-1800 square metre per gram, and optimum selection is 800-1600 square metre per gram; hole capacity is 0.3-1.5 cubic decimeter per gram, andoptimum selection is 0.5-1.2 cubic decimeter per gram; mechanical strength is 10-25 newtons per millimeter. The preparation method of the composite adsorption material includes the steps of first mixing the pulverized coal ash and the eutectic to be then mixed with phenolic resin, and then performing high temperature carbonization to obtain the composite adsorption material. The composite adsorption material has the advantages of having multi-level pores with micropores, mesopores and macropores and being capable of conducting broad spectrum adsorption of various organic pollutants and heavymetal ions present in wastewater.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a ternary composite adsorption material made of coal powder ash, zeolite eutectic and active carbon materials and a preparation method thereof. Background technique [0002] With the development of petrochemical and related industries, organic wastewater has become one of the main sources of water pollution. The composition of organic wastewater is complex, the content of organic matter is large, and most of them exist in the form of aromatic groups such as benzene, naphthalene, anthracene, and quinone, which have the characteristics of deep color, strong toxicity, and refractory degradation. serious threat. In addition, with the rapid development of industry and the unreasonable discharge of wastewater, the pollution of heavy metals in water is becoming more and more serious. Heavy metal wastewater mainly comes from industries such as mining, smelting, electronics, elect...

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 Patents(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28
CPCB01J20/103B01J20/18B01J20/20B01J20/28011B01J20/28057B01J20/28069C02F1/288
Inventor 杨卫亚凌凤香沈智奇郭长友季洪海王丽华王少军张会成
Owner CHINA PETROLEUM & CHEM CORP
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
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