Patent ID: 11970398
Assignee: TRIMTABS LTD
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 18:
19. A method of converting waste plastic to carbon nanotubes, comprising:
mixing carbon-containing material and a metallic catalyst precursor with toluene to form a mixture, wherein the carbon-containing material is a waste plastic comprising about 0.10 to about 10 weight percent of the mixture;
injecting the mixture into a carrier gas stream and into a reaction vessel comprising a first heating zone and a second heating zone, the first heating zone and the second heating zones disposed adjacent to one another along a length of a quartz tube;
heating the mixture at a first temperature of between about 100° C. and about 1000° C. in the first heating zone;
heating the mixture at a second temperature of between about 400° C. and about 1000° C. in the second heating zone to facilitate growth of carbon nanotubes on the quartz tube within the second heating zone; and
removing the carbon nanotubes from the reaction vessel.