Method for producing organometallic framework materials containing main group metal ions

Patent metadata

Field	Value
Publication number	US-9878906-B2
Application number	US-6352206-A
Country	US
Kind code	B2
Filing date	Aug 18, 2006
Priority date	Aug 22, 2005
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

The present invention relates to a process for preparing a porous metal-organic framework by reacting at least one metal compound in which the metal is Be, Mg, Ca, Sr, Ba, Al, Ga or In with at least one at least bidentate organic compound and also the use of such porous metal-organic frameworks.

First claim

The invention claimed is:

1. A process for preparing a porous metal-organic framework, which comprises:
reacting, with stirring and at a pressure of not more than 2 bar (absolute), at least one metal compound with at least one at least bidentate organic compound which can coordinate to the metal, in the presence of a nonaqueous organic solvent selected from the group consisting of DMF, DEF, and NMP, to form a porous metal-organic framework,
where the metal is Mg II , or Al III and the organic compound has at least two atoms which are selected independently from the group consisting of oxygen, sulfur and nitrogen and via which the organic compound can coordinate to the metal,
wherein the at least bidentate organic compound is a dicarboxylic, or tricarboxylic acid, and
wherein the reaction is carried out without additional base.

2. The process according to claim 1 , wherein the reaction is carried out at not more than 1230 mbar (absolute).

3. The process according to claim 1 , wherein the metal is Al III .

4. The process according to claim 1 , wherein the metal compound is nonionic and/or the counterion to the metal cation is derived from a protic solvent.

5. A porous metal-organic framework obtained by a process according to claim 1 .

6. The framework according to claim 5 which has a specific surface area of more than 10 m 2 /g determined by the Langmuir method.

7. A method comprising uptaking at least one substance by contacting said substance with a porous metal-organic framework according to claim 5 .

8. The method according to claim 7 , wherein the metal is Al III or Mg II and the substance is hydrogen.

9. The process according to claim 1 , wherein the reaction is carried out at atmospheric pressure.

10. The process according to claim 1 , wherein the metal-organic framework comprises no boron or phosphorus atoms.

11. The process according to claim 1 , wherein said porous metal-organic framework is in the form of powder and has a specific surface area, calculated by the Langmuir model in accordance with DIN 66135, of greater than 500 m 2 /g.

12. The process according to claim 1 , wherein said porous metal-organic framework is in the form of powder and has a specific surface area, calculated by the Langmuir model in accordance with DIN 66135, of greater than 1000 m 2 /g.

13. The process according to claim 1 , wherein said porous metal-organic framework is in the form of powder and has a specific surface area, calculated by the Langmuir model in accordance with DIN 66135, of greater than 1250 m 2 /g.

14. The process according to claim 1 , further comprising after the reaction the framework formed is calcined at a temperature above 250° C.

15. The process according to claim 14 , wherein the framework formed is calcined at 300-400° C.

16. The process according to claim 1 , wherein the metal is Mg II .

17. The process according to claim 1 , wherein the metal is Al III .

Assignees

• Schubert Markus
• Mueller Ulrich
• Tonigold Markus
• Ruetz Roger
• Basf Se

Inventors

• Schubert Markus
• Mueller Ulrich
• Tonigold Markus
• Ruetz Roger

Classifications

• B01J20/28057

  Surface area, e.g. B.E.T specific surface area · CPC title

• F17C11/007

  for hydrocarbon gases, such as methane or natural gas, propane, butane or mixtures thereof [LPG] · CPC title

• 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

• B01D2253/204

  Metal organic frameworks (MOF's) · CPC title

• C01B3/0026 Primary

  Metals or metal hydrides · CPC title