Graphite converted to multi walled carbon nanotubes by a flame deposition method in the atmospheric pressure at 150.C. the process has included Combustion process of graphite in Oxygen/ Nitrogen gases without using catalyst by homemade reactors. The product was assembled on the upper part of the reactor were characterized using Raman spectroscopy, X-ray diffraction, photo- images and scanning electron microscopy SEM. The analysis shows that the combustion process succeeded to separate graphite sheets and forming a mixture of graphite nanotubes with graphene mixture after removing some Vander Walls forces. The work includes supposing mechanism for producing or convert planer graphite to the tubular structure of graphite or multi-walled carbon nanotubes.