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Application of metal organic framework material as catalyst in preparation of plasticizer

A metal-organic framework and organic framework technology, which is applied in the preparation of organic compounds, organic compound/hydride/coordination complex catalysts, organic chemistry, etc., can solve problems such as increased processing costs, many side reactions, and product catalyst residues , to achieve the effects of reducing transportation and storage costs, facilitating transportation and storage, and high catalytic yield

Inactive Publication Date: 2021-04-20
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are difficult problems in the process of using traditional catalysts, for example, sulfuric acid is very corrosive, and there is a great danger in the process of transportation and storage
In addition, these catalysts basically need to undergo steps such as dealcoholization, neutralization, water washing, and pressure filtration to obtain finished products, which will corrode equipment, have many side reactions, dark product color, complex post-treatment, and a large amount of wastewater discharge pollutes the environment.
Damaged equipment increases the maintenance cost of the equipment, and the post-processing is very complicated, which not only increases the processing cost but also causes catalyst residues in the product and environmental pollution, which is contrary to the concept of green chemistry that has been advocated in recent years

Method used

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  • Application of metal organic framework material as catalyst in preparation of plasticizer
  • Application of metal organic framework material as catalyst in preparation of plasticizer
  • Application of metal organic framework material as catalyst in preparation of plasticizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to the mole fraction ratio of phthalic acid, butanol and catalyst is 1:4:0.01, respectively add phthalic acid, butanol and MIL-125 into a 50mL round bottom flask, and add a magnetic stirrer with a diameter of 5mm Fix the round bottom flask on the iron stand. Pour simethicone oil with a viscosity of 100cps into a 150mm crystallization dish, place the crystallization dish on a heating magnetic stirrer, set the heating temperature to 100 degrees Celsius, and set the stirring speed to 300r / min. When the temperature in the crystallization dish reaches the set temperature, immerse the round-bottom flask fixed on the iron stand in simethicone oil, stir and react for 5 hours, then remove the round-bottom flask from the crystallization dish, and stop the heating reaction. Take 100 μL of the mixture from the mixed system and add it to the NMR tube, and then add 0.5 mL deuterated dimethyl sulfoxide (Dimethyl Sulfoxide-d 6 , DMSO) to carry out nuclear magnetic detection ...

Embodiment 2

[0041] According to the mole fraction ratio of phthalic acid, amyl alcohol and catalyst as 1:6:0.01, respectively add phthalic acid, amyl alcohol and MIL-125 into a 50mL round bottom flask, and add a magnetic stirrer with a diameter of 5mm Fix the round bottom flask on the iron stand. Pour simethicone oil with a viscosity of 100cps into a 150mm crystallization dish, place the crystallization dish on a heating magnetic stirrer, set the heating temperature to 150 degrees Celsius, and set the stirring speed to 300r / min. When the temperature in the crystallization dish reaches the set temperature, immerse the round-bottom flask fixed on the iron stand in simethicone oil, stir and react for 3 hours, then remove the round-bottom flask from the crystallization dish, and stop the heating reaction. Take 100 μL of the mixture from the mixed system and add it to the NMR tube, and then add 0.5 mL deuterated dimethyl sulfoxide (Dimethyl Sulfoxide-d 6 , DMSO) for nuclear magnetic detection...

Embodiment 3

[0043] According to the mole fraction ratio of phthalic acid, isooctyl alcohol and catalyst as 1:10:0.01, respectively add phthalic acid, alcohol and MIL-125 into a 50mL round bottom flask, and add a magnetic stirrer with a diameter of 5mm Fix the round bottom flask on the iron stand. Pour simethicone oil with a viscosity of 100cps into a 150mm crystallization dish, place the crystallization dish on a heating magnetic stirrer, set the heating temperature to 190 degrees Celsius, and set the stirring speed to 300r / min. When the temperature in the crystallization dish reaches the set temperature, immerse the round-bottom flask fixed on the iron stand in simethicone oil, stir and react for 1 hour, then remove the round-bottom flask from the crystallization dish, and stop the heating reaction. Take 100 μL of the mixture from the mixed system and add it to the NMR tube, and then add 0.5 mL deuterated dimethyl sulfoxide (Dimethyl Sulfoxide-d 6 , DMSO) for nuclear magnetic detection ...

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Abstract

The invention belongs to the technical field of catalysts, and provides an application of a metal organic framework material as a catalyst in preparation of a plasticizer, and MIL-125 is used as a heterogeneous catalyst to catalyze a binary or ternary organic acid to react with an alcohol to generate the plasticizer. The MIL-125 has more catalytic sites, so that the MIL-125 has higher catalytic efficiency, the extremely high catalytic yield can be achieved only by adding 1mol% of MIL-125, and the yield of 99.9% can be obtained to the maximum extent. The catalyst has very strong universality, and has a very good catalytic effect on the synthesis of various plasticizers. The synthesized plasticizer is stable in property and convenient for industrial transportation and storage, and the transportation and storage cost is reduced. In the reaction process, the alcohol can serve as a reactant and a solvent, no additional solvent needs to be added, and the step of removing the solvent in the post-treatment process is omitted. After the reaction is finished, the MIL-125 still keeps an original frame structure and can be recycled for four times or more, so that the environment-friendly green chemical concept is embodied.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular relates to the application of a metal organic framework material as a catalyst in the preparation of plasticizers. Background technique [0002] Plasticizer refers to a class of fine chemical products that can increase the plasticity of polymer systems. It is a very important class of non-volatile compounds with low molecular weight. Its molecular structure has polar parts and non-polar parts. It is used as an additive Widely used in polymer synthesis. Plasticizer molecules can be inserted between polymer molecular chains, which can weaken the intermolecular force, increase the distance and activity space between polymer molecular chains, increase the plasticity of polymers, and reduce the processing temperature of polymers And so on. IUPAC defines plasticizers as: Plasticizers are substances that increase the flexibility, processability and extensibility of materials. Plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/22C07C67/08C07C69/80C07C69/82C07C69/44C07C69/50C07C69/704C07C69/76C08K5/12C08K5/11
Inventor 李良春袁宝玲范涛
Owner TONGJI UNIV
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