Patent ID: 7998450
Filing Date: 2011-08-16
Classification: B01J,B82Y,C01B,Y02P,Y10S

Abstract:
1. A continuous method of functionalizing a carbon nanotube, comprising: a) continuously feeding the carbon nanotube solution and an oxidizer under a pressure of 50 to 400 atm to a preheater via a heat exchanger, respectively or together, and then preheating the mixture of said carbon nanotube solution and said oxidizer into a temperature of 100 to 370° C.; b) functionalizing the carbon nanotube in the preheated mixture under the subcritical water conditions of more than 100° C. to less than 374° C. and 50 to 400 atm; c) cooling down the functionalized product into 0 to 100° C. and depressurizing the functionalized product into 1 to 10 atm by feeding the functionalized product into a cooling down and depressing part via the heat exchanger of the step (a) while carrying out the process of the step (a); and d) recovering the cooled down and depressurized product.