Patent ID: 9006132
Filing Date: 2015-04-14
Classification: B01J,B82Y,D01F,Y10S,Y10T

Abstract:
1. A process for preparing catalyst composition having the apparent density of 0.01-0.50 g/ml for the synthesis of carbon nanotube in a high yield of 1,000-1,800% comprising the steps of: i) dissolving multi-component metal precursors of catalyst composition in deionized water; ii) spraying obtained catalytic metal precursor solution into the high temperature reactor by gas atomization method using 2-5 atm pressure of air; iii) forming the catalyst composition powder by pyrolysis of gas atomized material at the temperature in the range of 600-1,200° C.; and iv) obtaining the catalyst composition powder, wherein said catalyst composition is represented by following formula  a+b=10, 2.0≦a≦5.5, 4.5≦b≦8.0; and wherein said metal precursor is at least one selected from nitrate, sulfate, alkoxide and/or carbonate form of metal.