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Preparation method of modified metal organic framework for removing impurities in hydrogen storage material

A technology of metal-organic frameworks and hydrogen storage materials, applied in chemical instruments and methods, ion exchange, and other chemical processes, can solve problems such as unrealizable separation, achieve low cost, reduce transportation costs, and ensure safety

Active Publication Date: 2022-02-25
SUZHOU JINHONG GAS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cyclic hydrocarbons cannot be separated by conventional distillation techniques due to their similar molecular size and boiling point, so it is urgent to develop new techniques to separate such compounds

Method used

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  • Preparation method of modified metal organic framework for removing impurities in hydrogen storage material
  • Preparation method of modified metal organic framework for removing impurities in hydrogen storage material
  • Preparation method of modified metal organic framework for removing impurities in hydrogen storage material

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preparation example Construction

[0028] The equation for the preparation of the modified MOF material is:

[0029]

Embodiment 1

[0031] The embodiment of the present invention discloses a method for preparing a modified metal-organic framework that removes impurities in a hydrogen storage material. The preparation method includes:

[0032] S1, H 3 The preparation of hmtt: Weigh 3.42g of tripolyindene and 24.3g of potassium tert-butoxide respectively, add them into a 250ml three-necked flask, feed nitrogen to exhaust the air, after the three-necked flask is lowered to freezing point, slowly drop 15ml of methyl iodide to ensure A slight excess of iodomethane was stirred for 10 min. Then, 20ml of oxalyl chloride was added during stirring, and a red suspension was obtained at this time, which was stirred and refluxed for 4h. The resulting mixture was filtered to collect a yellow precipitate, which was washed three times with water.

[0033] S2. Preparation of modified MOF materials: Weigh 10 mg of compound H3hmtt, add it into a polytetrafluoroethylene reactor, and then add 7.5 mg of terephthalic acid, 4.5...

Embodiment 2

[0036] The embodiment of the present invention discloses a method for preparing a modified metal-organic framework that removes impurities in a hydrogen storage material. The preparation method includes:

[0037] S1, H 3 The preparation of hmtt: Weigh 3.42g of tripolyindene and 24.3g of potassium tert-butoxide respectively, add them into a 250ml three-necked flask, feed nitrogen to exhaust the air, after the three-necked flask is lowered to freezing point, slowly drop 15ml of methyl iodide to ensure A slight excess of iodomethane was stirred for 10 min. Then, 20ml of oxalyl chloride was added during stirring, and a red suspension was obtained at this time, which was stirred and refluxed for 4h. The resulting mixture was filtered to collect a yellow precipitate, which was washed three times with water.

[0038] S2. Preparation of modified MOF material: weigh compound H 3 Add hmtt 10mg into the polytetrafluoroethylene reactor, then add 7.5mg of terephthalic acid, 4.5mg of 4,4...

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Abstract

The invention discloses a preparation method of a modified metal organic framework for removing impurities in a hydrogen storage material. The preparation method comprises the following steps of: synthesizing a modified metal organic framework intermediate and synthesizing the modified metal organic framework. The invention provides a modified metal organic framework capable of effectively separating methyl cyclohexane (the boiling point is 101 DEG C) and impurity methylbenzene (the boiling point is 100 DEG C).

Description

technical field [0001] The invention relates to the technical field of organic synthesis, in particular to a preparation method of a modified metal-organic framework for removing impurities in hydrogen storage materials. Background technique [0002] The energy problems faced by people in today's society are becoming more and more prominent. On the one hand, the resources themselves are increasingly scarce, and on the other hand, the burning of too many fossil fuels has caused the greenhouse effect and environmental pollution. Therefore, the development and utilization of clean energy has become a global research hotspot. With the proposal and realization of my country's "carbon peak and carbon neutrality" goals, we urgently need alternative new energy sources. Among the many new energy sources, hydrogen energy is a storable, transportable, clean and renewable energy. Therefore, , the development of hydrogen energy will bring about major changes in the energy structure, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00B01J20/22B01J20/30B01D15/08
CPCC08G83/008B01J20/223B01D15/08Y02E60/32
Inventor 尹中南孙猛陈琪刘冬妮
Owner SUZHOU JINHONG GAS CO LTD