essential components thereof the liquor is comprised of alcohol an amine and water each present in amount of 1 12 parts by volume the liquor is further used in the presence of a quinone and or azine catalyst application_number US 50597283 A description lignocellulosic materials such as soft and hardwoods and their derivatives may be delignified and otherwise pulped by cooking them in a closed reactor vessel in the organic solvent mixture hereinafter pulping liquor of this invention surprisingly high yields of pulp of up to 13 or more percentage expressed on original lignocellulosic material than that derived from the conventional 34 kraft 34 process can be achieved by softwood is meant species such as pine spruce and balsam fir by hardwood is meant species such as birch aspen maple and sweet gum the pulping liquor solution employed is comprised of volatile alcohols such as ethanol or methanol ethylenediamine or related aliphatic polyamines and water for purposes of clarity this invention will be further described with reference to the use of ethanol and ethylenediamine however as is discussed below the invention is not so limited broadly the ethanol ethylenediamine and water should each be present in amounts of 1 12 parts by volume when treating softwoods an equally effective but more economical mix may be employed and the ethanol ethylenediamine and water should each.