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A molded body of a metal-organic framework material and its preparation method and application

A technology of metal-organic frameworks and moldings, which is applied in the direction of separation methods, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of soft texture, reduced mechanical strength, and low compressive strength of moldings, and solve the problem of water Effect of modification, improvement of mechanical strength and wear resistance, and high mechanical strength

Active Publication Date: 2020-05-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method adds methyl hydroxypropyl cellulose as an organic tackifier / plasticizer, which is likely to cause embrittlement of the Cu-based metal-organic framework-graphene oxide composite molding, that is, low compressive strength and brittleness.
Choosing silicic acid resin as the adhesive will also lead to too soft texture of the molded body and a decrease in mechanical strength during the process of improving the bond strength

Method used

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  • A molded body of a metal-organic framework material and its preparation method and application
  • A molded body of a metal-organic framework material and its preparation method and application
  • A molded body of a metal-organic framework material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take by weighing the Cu prepared by the above-mentioned synthetic method of 500g 3 (BTC) 2 Metal-organic framework material powder, and then weigh 10g of erythritol (particle size 100-400μm), mix it evenly, put it into a 35-mesh (aperture about 400μm) vibrating sieve and sieve. Take 200g of the powder mixture under the sieve, put it in the working room of the centrifugal granulator, adjust the rotating speed to 200rpm, and the temperature in the working room to 45°C. Perform shot blasting under the state of centrifugal rotation and spray 40g of water. After 15 minutes, the particle size is 3.5 mm spherical particles. The spherical particles were then placed in a blast drying oven and dried at 60°C for 24 hours to obtain Cu 3 (BTC) 2 The molded body A of the metal organic framework material, the molded body A is a spherical particle with a diameter of 3 mm to 5 mm.

Embodiment 2

[0039] The composition of the preparation method of the molded body is the same as in Example 1, except that 10 g of erythritol is replaced with 15 g of glucose (with a particle size of 100-400 μm) to obtain Cu 3 (BTC) 2 The molded body B of the metal organic framework material, the molded body B is a spherical particle with a diameter of 3 mm to 5 mm.

Embodiment 3

[0041] The composition of the preparation method of the molded body is the same as in Example 1, except that the amount of erythritol is reduced to 5 g, and the rotational speed and working temperature of the centrifugal granulator are respectively increased to 300 rpm and 55 ° C to obtain Cu 3 (BTC) 2 The molded body C of the metal organic framework material, the molded body C is a spherical particle with a diameter of 3 mm to 5 mm.

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Abstract

The invention discloses a molding body of a metal organic framework material as well as a preparation method and application thereof. The molding body comprises the metal organic framework material and a binding agent, wherein the binding agent is one or more of glucose, sucrose and erythritol. The binding agent in the molding body has a good binding effect, so that the mechanical strength and theabrasion resistance of the molding body are improved, and orifices of crystals of the metal organic framework material are not blocked easily, so that the loss of the specific surface area and the pore volume of the metal organic framework material is less. According to the preparation method, particles of the molding body can grow uniformly, and the harm to a crystal framework structure of the metal organic framework material is less, so that a porous structure of the metal organic framework material is reserved to the maximum degree.

Description

technical field [0001] The invention relates to a molded body of a metal organic framework material, a preparation method and an application thereof. Background technique [0002] Metal-Organic Frameworks (MOFs for short) refer to zeolite-like framework materials with special pore structures self-assembled from multi-dentate organic ligands containing oxygen, nitrogen, etc. and transition metal ions. They have the advantages of high porosity, large specific surface area, small density, adjustable pore structure and functional design, which provide opportunities for the development of energy gas adsorbents and separation agents with high storage capacity and high shape-selective separation effect. [0003] There are many ways to synthesize MOFs, such as solvothermal synthesis, liquid phase diffusion, microwave-assisted synthesis, ultrasonic synthesis, and mechanochemical methods. However, the metal-organic framework materials prepared by the above method are usually solid po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D53/02
CPCB01D53/02B01D2253/204B01D2257/702B01J20/226B01J20/28019B01J20/28064B01J20/28066B01J20/28073B01J20/2808B01J20/3028B01J20/3042
Inventor 赵亮马蕊英王海洋王刚方向晨
Owner CHINA PETROLEUM & CHEM CORP
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