| 摘要 |
A raw coal having such a structure that the product obtained by graphitizing the raw coal in an inert gas atmosphere at 2800 DEG C has crystallite size/lattice constant ratios of 360 or below in (002) plane and 1500 or below in (110) plane is provided either as a raw coal capable of giving, through alkali activation followed by washing, active carbon which is reduced in residual alkali content and permits simplified operation in the washing since washing fluid in the washing can go in and out of active carbon easily, or as a raw coal for making needle coke. |
