Fractionation of lignocellulose materials-chc steps

Claim 1

THE PROCESS OF TREATING COMMINUTED LIGNOCELLULOSE RAW MATERIAL TO PRODUCE A FIBROUS PRODUCT AND CHEMICAL PRODUCTS THEREFROM, WHICH COMPRISES THE STEPS OF REACTING THE LONGNOCELLULOSE MATERIAL WITH FROM ABOUT 2.5 PARTS TO 100 PARTS OF AN ALKALINE REACTING COMPOUND OF AN ALKALI METAL FOR EACH 100 PARTS OVEN DRY FIBER IN THE PRESENCE OF WATER AT ATMOSPHERIC PRESSURE AND AT A TEMPERATURE IN THE RANGE FROM ROOM TEMPERATURE TO ABOUT 140* C., EXTRACTING WITH AN AQUEOUS SOLVENT THE SOLUBLE PRODUCTS OF REACTION OF THE LIGNOCELLULOSE MATERIAL WITH SAID ALKALINE REACTING COMPOUND OF AN ALKALI METAL, SEPARATING THE EXTRACTIVES FROM THE LIGNOCELLULOSE MATERIAL TO OBTAIN A FIBROUS RESIDUE AS A FIRST PRODUCT, TREATING THE FIBROUS RESIDUE OF SAID LIGNOCELLULOSE MATERIAL WITH AN ALKALI METAL HYPOCHLORITE REAGENT HAVING AN EQUIVALENCY OF FROM 35 PARTS TO 80 PARTS SODIUM HYDROXIDE FOR EACH 100 PARTS BY WEIGHT DRY FIBER, EXTRACTING WITH AN AQUEOUS SOLVENT THE SOLUBLE PRODUCTS OF REACTION OF SAID FIBROUS RESIDUE WITH SAID ALKALI METAL HYPOCHLORITE REAGENT, SEPARATING THE EXTRACTIVES FROM SAID FIBROUS RESIDUE TO OBTAIN THE FIBROUS RESIDUE AS A SECOND PRODUCT, TREATING THE FIBROUS PRODUCT OF THE LAST MENTIONED EXTRACTION AND SEPARATION STEPS WITH AN ALKALINE REACTING COMPOUND OF AN ALKALI METAL IN THE PRESENCE OF WATER AT A CONCENTRATION OF FROM ABOUT 0.4% TO ABOUT 10% AT ATMOSPHERIC PRESSURE AND AT A TEMPERATURE IN THE RANGE FROM ROOM TEMPERATURE TO ABOUT 140* C., EXTRACTING WITH AN AQUEOUS SOLVENT THE SOLUBLE PRODUCTS OF SAID LAST NAMED REACTION, SEPARATING THE FIBROUS MATERIAL MAINTAINING FROM SAID LAST NAMED EXTRACTION STEP TO OBTAIN A FIBROUS RESIDUE AS A THIRD PRODUCT, AND TO PROVIDE A RESIDUAL SOLUTION OF SAID LAST NAMED REACTION PRODUCTS.