Burning of carbon prods. - by impregnating with tar or pitch and heating in a non-oxidising atmos. in muffle oven(J5 26.7.75)

摘要

Method comprises impregnating tar or pitch into burned carbon prods. contained in a cage, placing the cage in a maffle oven, and heating the carbon prods. from the bottom of the oven in non-oxidising atmos. (J50094005).