Regeneration method for Cu-BTC material

Patent metadata

Field	Value
Publication number	US-9533283-B2
Application number	US-201214427885-A
Country	US
Kind code	B2
Filing date	Oct 10, 2012
Priority date	Oct 10, 2012
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

A method for regenerating a Cu-BTC material includes: impregnating a Cu-BTC adsorbed with guest molecules in an acidic proton solvent or in a steam environment thereof, and filtering the Cu-BTC material, to obtain a solid; impregnating the solid in a non-acidic organic solvent or a steam environment thereof, and finally filtering, washing and drying the solid, to complete the generation of the Cu-BTC material.

First claim

What is claimed is:

1. A method for regenerating a Cu-BTC material, comprising:
impregnating Cu-BTC adsorbed with guest molecules in an acidic proton solvent or a steam environment thereof, and filtering the Cu-BTC material to obtain a solid; and
impregnating the solid in a non-acidic organic solvent or a steam environment thereof, and finally filtering, washing and drying the solid, to complete the regeneration of the Cu-BTC material; wherein the acidic proton solvent has a pH value of 1 to 6.

2. The method according to claim 1 , wherein the guest molecules are gas molecules or organic dye molecules.

3. The method according to claim 1 , wherein
the specific surface area of the Cu-BTC adsorbed with guest molecules is greater than 600 m 2 /g, and
the specific surface area of the Cu-BTC material is greater than 600 m 2 /g.

4. The method according to claim 1 , wherein the acidic proton solvent is at least one member selected from the group consisting of acetic acid, formic acid, hydrochloric acid, sulfuric acid, nitric acid, carbonic acid, phosphoric acid, hydrofluoric acid, hydrogen bromide and hydrogen iodide.

5. The method according to claim 1 or 4 , wherein
when the Cu-BTC adsorbed with guest molecules is impregnated in the acidic proton solvent, a value of the liquid volume of the acidic proton solvent in milliliters is 20 folds or more than a value of the solid mass in grams; and
the Cu-BTC adsorbed with guest molecules is impregnated in the acidic proton solvent or the steam environment thereof for a duration of 1 min to 72 h.

6. The method according to claim 1 , wherein the non-acidic organic solvent is at least one member selected from the group consisting of methanol, ethanol, N,N-dimethylformamide, dimethyl sulfoxide, acetonitrile, sulfolane, acetone, dimethylacetamide and hexamethylphosphoramide.

7. The method according to claim 1 , wherein a value of the liquid volume of the non-acidic organic solvent in milliliters is 10 folds or more than a value of the solid mass in grams.

8. The method according to claim 1 , wherein the solid is impregnated in the non-acidic organic solvent for a duration of 1 min to 72 h.

9. The method according to claim 1 , wherein the guest molecules are one or more members selected from the group consisting CO 2 , CO, N 2 , H 2 , CH 4 , C 2 H 2 , C 2 H 4 , NO, NO 2 , SO 2 , H 2 S, methyl orange, methyl blue, methylene blue, methyl red and Sudan red.

10. The method according to claim 1 , wherein the guest molecule adsorption in the Cu-BTC adsorbed with guest molecules is 0.1 wt % to 100 wt %.

11. The method according to claim 2 , wherein the guest molecule adsorption in the Cu-BTC adsorbed with guest molecules is 0.1 wt % to 100 wt %.

12. A method for regenerating a Cu-BTC material, comprising:
impregnating Cu-BTC adsorbed with guest molecules in an acidic proton solvent or a steam environment thereof, and filtering the Cu-BTC material to obtain a solid, wherein the solid is obtained without decomposing the structure of the Cu-BTC material; and
impregnating the solid in a non-acidic organic solvent or a steam environment thereof, and finally filtering, washing and drying the solid, to complete the regeneration of the Cu-BTC material.

Assignees

• Nanjing Tech Univ (Cn)
• Changshu Yutyrone Advanced Wear Mat Tech Co Ltd (Cn)
• Nanjing University Of Technology
• Changshu Yutyrone Advanced Wear Mat Tech Co Ltd

Inventors

• Zhang Suoying
• Lu Xiaohua
• Yao Wenjun
• Yang Zhuhong
• Wang Changsong

Classifications

• B01J20/226

  Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F) · CPC title

• B01J20/3458

  in the gas phase · CPC title

• B01J20/3425

  of sorbents or filter aids comprising organic materials · CPC title

• B01J20/28071

  being less than 0.5 ml/g · CPC title

• Y02C10/08

  Cross-Sectional Technologies · mapped topic