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A symmetrical tetramethyl six-membered melon ring framework material and its application

A technology of tetramethyl-hexamelon and framework materials, which is applied in other chemical processes, organic chemistry, chemical instruments and methods, etc., can solve the problem of high separation cost, and achieve the effect of simple preparation method and low cost

Active Publication Date: 2022-01-25
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many kinds of alkanes in gasoline. In order to provide the octane number of gasoline, it is usually necessary to separate some of the alkanes in gasoline. At present, the separation methods of alkanes in gasoline include adsorption distillation, straight distillation and other methods, and the separation cost is relatively high.

Method used

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  • A symmetrical tetramethyl six-membered melon ring framework material and its application
  • A symmetrical tetramethyl six-membered melon ring framework material and its application
  • A symmetrical tetramethyl six-membered melon ring framework material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: A symmetrical tetramethyl six-membered melon ring framework material, the preparation method of which is as follows:

[0027] Dissolve the symmetrical tetramethyl six-membered melon ring in sulfuric acid with a concentration of 1-2M, let it cool down, then continue to stand until it is completely crystallized, take out the crystal, and dry it to obtain the symmetrical tetramethyl six-membered melon ring framework Material.

[0028] In this example, crystals were precipitated when left to stand for about 12 hours, and the amount of crystals was the largest when left for 24 hours. After drying, the yield was 80%. Its crystal structure corresponds to figure 1 Figure a in.

Embodiment 2

[0029] Embodiment 2: A symmetrical tetramethyl six-membered melon ring framework material, the preparation method of which is as follows:

[0030] Dissolve the symmetrical tetramethyl six-membered melon ring in sulfuric acid with a concentration of 3-4M, let it cool down, then continue to stand until it is completely crystallized, take out the crystal, and dry it to obtain the symmetrical tetramethyl six-membered melon ring framework Material.

[0031] In this example, when left to stand for about 8 hours, crystals were precipitated, and when left for 24 hours, the amount of crystals was the largest, and the yield was 70% after drying. Its crystal structure corresponds to figure 1 Figure b in .

Embodiment 3

[0032] Embodiment 3: A symmetrical tetramethyl six-membered melon ring framework material, the preparation method of which is as follows:

[0033] Dissolve the symmetrical tetramethyl six-membered melon ring in sulfuric acid with a concentration of 5-6M, let it cool down, then continue to stand until it is completely crystallized, take out the crystal, and dry it to obtain the symmetrical tetramethyl six-membered melon ring framework Material.

[0034] In this example, when left to stand for about 8 hours, crystals were precipitated, and when left for 24 hours, the amount of crystals was the largest, and the yield was 70% after drying. Its crystal structure corresponds to figure 1 Figure c in .

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Abstract

The invention discloses a symmetrical tetramethyl six-membered melon ring frame material and its application. The material is prepared by dissolving the symmetrical tetramethyl six-membered melon ring in sulfuric acid. It can be used to adsorb and separate alkanes in gasoline. The frame material of the invention is a frame material with a novel structure, can realize the adsorption and separation of alkanes in gasoline, and has low cost and simple preparation.

Description

technical field [0001] The invention relates to a melon ring frame material and its application, in particular to a symmetrical tetramethyl six-membered melon ring frame material and its application. Background technique [0002] Cucurbital ring (Q[n]) is the reaction product of condensation of glycoside urea or alkyl substituted glycoside urea with formaldehyde or paraformaldehyde in acid medium, which is composed of n glycoside urea units connected by 2n methylene bridges It is a macrocyclic compound with a ring-shaped cage structure, and n carbonyl groups are respectively distributed at the upper and lower opening ports. [0003] Framework materials have structural diversity, including metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and supramolecular organic frameworks (SOFs). They have broad application prospects in adsorption, separation, etc. Cucurbitanyl ring is a macrocyclic compound, which is very suitable as the basic building block of frame...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00B01J20/26C10G25/00B01J20/30C07C7/12C07C9/16
CPCC08G83/008B01J20/262C10G25/003C07C7/12C07C9/16
Inventor 程瑞雪田飞扬陶朱
Owner GUIZHOU UNIV
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