IP Library › Granted Patent US 8,906,978
Granted Patent B2
US 8,906,978 · App. 14/047,935 · Granted Dec 9, 2014

Manufacturing methods for the production of carbon materials

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Quick Facts
Patent No.
US 8,906,978
App. No.
14/047,935
Granted
Dec 9, 2014
Kind
B2
Abstract

The present application is generally directed to activated carbon materials and methods for making the same. The disclosed methods comprise rapidly freezing synthetically prepared polymer gel particles. The methods further comprise drying, pyrolyzing, and activating steps to obtain an activated carbon material of high porosity. The disclosed methods represent viable manufacturing processes for the preparation of activated carbon materials.

Claims (10)

1. A polymer cryogel comprising less than about 100 ppm of organic extraction solvent, wherein the polymer cryogel has a tap density ranging from about 0.10 g/cc to about 0.60 g/cc.

2. The polymer cryogel of claim 1 , wherein the polymer cryogel has a BET specific surface area ranging from about 100 m 2 /g to about 1000 m 2 /g.

3. The polymer cryogel of claim 1 , wherein the polymer cryogel has a BET specific surface area of ranging from about 150 m 2 /g to about 700 m 2 /g.

4. The polymer cryogel of claim 1 , wherein the polymer cryogel has a BET specific surface area ranging from about 400 m 2 /g to about 700 m 2 /g.

5. The polymer cryogel of claim 1 , wherein the polymer cryogel has a tap density ranging from about 0.15 g/cc to about 0.25 g/cc.

6. The polymer cryogel of claim 3 , wherein the polymer cryogel has a tap density ranging from about 0.15 g/cc to about 0.25 g/cc.

7. The polymer cryogel of claim 4 , wherein the polymer cryogel has a tap density ranging from about 0.15 g/cc to about 0.25 g/cc.

8. The polymer cryogel of claim 1 , wherein the polymer cryogel comprises less than 10 ppm of organic extraction solvent.

9. The polymer cryogel of claim 1 , wherein the organic extraction solvent is t-butanol.

10. The polymer cryogel of claim 1 , wherein the organic extraction solvent is acetone.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 25, 2015
From: ENERG2 TECHNOLOGIES, INC.
To: BASF SE
Reel/Frame 035028/0780 →