IP Library Granted Patent US 9,731,973
Granted Patent B2
US 9,731,973 · App. 15/071,541 · Granted Aug 15, 2017

Method for obtaining graphene oxide

Inventors: Amaia Zurutuza Elorza (Donostia, ES); Beatriz Alonso Rodriguez (Donostia, ES)
Assignee: GRAPHENEA S.A.
C01B31/043C01B31/0476
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Quick Facts
Patent No.
US 9,731,973
App. No.
15/071,541
Granted
Aug 15, 2017
Kind
B2
Abstract

A method for obtaining graphene oxide is provided comprising the steps of a) adding an acid and a salt to graphite for obtaining a graphite oxide, and b) exfoliating the graphite oxide by mixing it, wherein the steps a) and b) are carried out simultaneously in a high shear mixer.

Claims (8)

1. A method for obtaining graphene oxide comprising:

adding an acid and a salt to graphite for obtaining a graphite oxide; and

exfoliating the graphite oxide by mixing it;

wherein the adding and exfoliating are carried out simultaneously in a high shear mixer.

2. The method of claim 1 , wherein the acid is sulphuric acid and the salt is potassium permanganate.

3. The method of claim 1 , wherein no other components are added in the adding or exfoliating.

4. The method of claim 1 , further comprising:

carrying out a second mixing in the high shear mixer once a purification has been completed.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2017
From: ZURUTUZA ELORZA, AMAIA; ALONSO RODRIGUEZ, BEATRIZ
To: GRAPHENEA S.A.
Reel/Frame 041486/0633 →
Priority Claims (1)
EP 15382123 · Mar 17, 2015 · regional
Continuity (1)
Related Publication 20160272499A1 · Sep 22, 2016