NOVELTY - Recovering (m1) biomass components from an ionic liquid, involves: forming a first phase and a second phase from a hydrolyzed biomass composition comprising an ionic liquid, water and biomass components. The first phase comprises the ionic liquid; and the second phase comprises water and biomass components.    USE - For recovering biomass components (e.g. lignin) from an ionic liquid; and for generating ethanol. The lignin is used for the production of an aromatic compound, concrete additive, antioxidant, asphalt additive, carbon fiber or other fiber, board binder, foam, plastic or other polymer, dust control product, paper product, chemical product, battery, fuel, heat, grease, dispersant, or fertilizer (claimed).    ADVANTAGE - The present method initially utilizes a cheaper lignin-dissolving ionic liquid, followed by hydrolysis of the cellulose in a separate ionic liquid which is more economical than using only a cellulose-dissolving ionic liquid. Also by introducing cellulose rather than lignocellulose into the cellulose-dissolving ionic liquid can result in higher reaction rates, higher sugar yields, require fewer process steps (e.g. eliminate the requirement of solids removal), and result in a cleaner ionic liquid recycle and less ionic liquid loss in the process loop.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) an extractor capable of performing the method comprises an inlet, a first outlet and a second outlet. The inlet is configured to feed a composition comprising ionic liquid, water and a solute into the extractor. The extractor is capable of forming a first phase comprising ionic liquid and a second phase comprising water and the solute. At least one of: first outlet is in fluid communication with a first unit capable of recovering or concentrating the solute in the second phase; and second outlet is in fluid communication with a second unit capable of recovering gases dissolved in the first phase;    (2) dissolving (m2) biomass and its component involving contacting the biomass or its component with an ionic liquid at a pressure greater than atmospheric pressure;    (3) hydrolyzing (m3) biomass, involving adding water to a reaction mixture comprising ionic liquid and biomass, where the water is added at a rate such that the ratio (by mass) of side-products (HMF, furan) to sugar is less than the ratio (by mass) of side-products (e.g. 5-(hydroxymethyl)-2-furaldehyde, furan) to sugar obtained by the identical reaction comprising a fixed amount of water added; or the water is added at a rate such that biomass solubilization is not substantially inhibited and hydrolysis is not substantially inhibited; or the water is added at a rate that is approximately equal to the rate at which water is consumed in the reaction; or the water is added at a rate that maintains the water concentration in the reaction mixture below 5 wt./wt.%; or the water is added at a rate that maintains the ratio of the concentration of water to the concentration of the biomass in the mixture; or the water is added at a rate that maintains the ratio of the concentration of water to the concentration of the ionic liquid in the mixture;    (4) hydrolyzing (m4) a biomass polysaccharide substrate involving hydrolyzing a reaction mixture comprising the biomass polysaccharide substrate and an ionic liquid in which the biomass polysaccharide substrate is soluble and adding water to the reaction mixture, where water is added at a rate such that the polysaccharide of the biomass polysaccharide substrate is not precipitated from the reaction mixture and hydrolysis is not substantially inhibited, and following hydrolysis, lowering the temperature of the reaction mixture from the temperature at which hydrolysis is performed;    (5) a hydrolysis product prepared by the methods;    (6) making a monosaccharide feedstock involving preparing the hydrolysis product and separating the hydrolysis product from ionic liquid;    (7) generating ethanol by fermentation involving employing the hydrolysis product as a monosaccharide feedstock for fermentation by an ethanologenic microorganism;    (8) recovering (p1) lignin and/or oils from the ionic liquids involving: adding biomass to a vessel comprising ionic liquid; and adding a pressurized gas to the vessel, where the biomass is dissolved and hydrolyzed to sugar in the ionic liquid and at least one of (i) lignin is not dissolved in the ionic liquid, (ii) lignin is precipitated from the ionic liquid, (iii) the sugar is extracted in an aqueous phase, (iv) the sugar is extracted in the pressurized gas, (v) oils are removed by phase separation, and (vi) oils are extracted in the pressurized gas;    (9) separating (p2) hydrolysate from ionic liquid involving hydrolyzing biomass in ionic liquid in a vessel and separating the hydrolysate from the ionic liquid in the vessel;    (10) removing solids from an ionic liquid involving contacting a pressurized gas with ionic liquid having dissolved solids (s2), where the solids precipitate from the ionic liquid; and    (11) precipitating (p3) solids involving: providing a composition comprising ionic liquid and dissolved solids; providing an extractant above the boiling point temperature of the extractant; and contacting the composition with the extractant to precipitate the solids.