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A method for preparing coronene compounds from alcohol raw materials

A technology for compounds and alcohols, applied in the field of preparing coronene compounds, can solve the problems of unstable intermediate products, inconvenient industrialization and the like, and achieve the effects of being suitable for large-scale production, low cost and simple preparation process

Active Publication Date: 2022-06-21
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method overcomes the disadvantage of expensive raw material perylene, the process involves multiple anhydrous, oxygen-free and low-temperature operations, and the intermediate product is extremely unstable, which brings inconvenience to industrialization

Method used

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  • A method for preparing coronene compounds from alcohol raw materials
  • A method for preparing coronene compounds from alcohol raw materials
  • A method for preparing coronene compounds from alcohol raw materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Example 1: Synthesis of RHO molecular sieve catalyst

[0067] Initial gel molar composition ratio 2N-methylbutylamine (as organic structure directing agent): 3Na 2 O: 0.4Cs 2 O: Al 2 O 3 : 10SiO 2 : 110H 2 O Mix the metered amounts of sodium oxide, cesium oxide, pseudoboehmite, silica sol and deionized water in a beaker, stir well to form a gel, and then put it into a stainless steel autoclave lined with Teflon, in 100℃ constant temperature for 50h. After crystallization, centrifuge at 3000 rpm / centrifugation for 3 min, and the solid product obtained by separation is washed with deionized water to neutrality, and dried in air at 120 °C overnight. The results of XRD analysis are as follows: figure 1 shown. from figure 1 It can be seen from the results that the synthesized product is the original powder of RHO molecular sieve, which is calcined at 550°C for 5 hours to obtain RHO molecular sieve, which is denoted as catalyst 1.

Embodiment 2

[0068] Example 2: Synthesis of ITQ-29 molecular sieve catalyst

[0069] In the initial gel molar composition ratio of 1.85 2,2-dimethyl-2,3-dihydro-1H-phenyl[de]isoquinoline (as an organic structure directing agent): 0.2SiO 2 : 0.8GeO 2 : 0.06Al 2 O 3 : 0.25 4-methyl-2,3,6,7-tetrahydro-1hydro, 5hydro-pyridine[3,2,1-ij]quinoline: 0.25 tetramethylamine: 0.5HF: 6H 2 O Mix measured amounts of silica sol, germanium dioxide, aluminum isopropoxide, organic structure directing agent, hydrofluoric acid, and deionized water in a beaker, stir well to form a gel, and then load into a Teflon-lined In a stainless steel autoclave, 6d was crystallized at a constant temperature of 135 °C. After crystallization, centrifuge at 3000 rpm / centrifugation for 3min, and the solid product obtained by separation is washed with deionized water to neutrality, and after drying in air at 100 °C overnight, the results of XRD analysis are as follows: figure 2 shown. from figure 2 It can be seen from ...

Embodiment 3

[0070] Example 3: Synthesis of UZM-9 molecular sieve catalyst

[0071] In the initial gel molar composition ratio 9 tetraethyl ammonium hydroxide: 2 tetramethyl ammonium hydroxide: 0 Na 2 O: Al 2 O 3 : 16SiO 2 : 62H 2 O Mix the measured amounts of tetraethylammonium hydroxide, tetramethylammonium hydroxide (organic structure directing agent), aluminum isopropoxide, silica sol, and deionized water in a beaker, stir well to form a gel, and then load into a In a stainless steel autoclave lined with Teflon, it was crystallized at room temperature for 6 h. After crystallization, centrifuge at 3000 rpm / centrifugation for 3min, and the solid product obtained by separation is washed with deionized water to neutrality, and after drying in air at 100 °C overnight, the results of XRD analysis are as follows: image 3 shown. from image 3 It can be seen from the results that the synthesized product is the original powder of UZM-9 molecular sieve, which is calcined at 600 °C for 5 h...

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Abstract

The invention relates to a method for preparing coronene compounds from alcohol raw materials. The method of the present invention comprises the following steps: contacting and reacting raw materials containing alcohol compounds and catalysts in a reactor to obtain coronene compounds; wherein, the catalysts include silicon-aluminum molecular sieves that have undergone activation treatment.

Description

technical field [0001] The present application relates to a method for preparing coronene compounds, belonging to the field of organic chemistry. Background technique [0002] Coronene compounds are polycyclic aromatic hydrocarbon compounds with highly symmetrical structures, with large conjugated system, strong rigid structure and coplanarity. The maximum absorption wavelength of coronene is 255nm, the maximum emission wavelength is 520nm, and it has a very high fluorescence quantum efficiency. Therefore, it occupies an extremely important position in the field of fluorescent materials, especially in the field of ultraviolet fluorescent materials. Coronene compounds are excellent materials for preparing Ultraviolet Charge Coupled Device (UV-CCD), and UV-CCD image sensors are widely used in nuclear explosion, medicine, astronomy and military (radar) and other fields. [0003] At present, the preparation methods of coronene mainly include three kinds, namely Wurtz-Fittig rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C15/20C07C1/20C07C7/10B01J29/70
CPCC07C1/20C07C7/10B01J29/70C07C2529/70C07C2603/54C07C15/20
Inventor 王男郅玉春魏迎旭刘中民桑石云
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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