| abstract |
An object of the present invention is to provide a method for producing alkali cellulose in which the degree of polymerization of cellulose is small and the amount of base used is small, and a method for producing cellulose ether using the obtained alkali cellulose. [1] In the presence of 0.6 to 1.5 moles of a basic compound per mole of anhydroglucose unit constituting cellulose in a cellulose-containing raw material, and the water content relative to cellulose in the cellulose-containing raw material is 10 Under the condition of mass% or less, the cellulose-containing raw material is pulverized to obtain a cellulose powder mixture in which the median diameter of the cellulose-containing raw material is 150 μm or less, and water is added to the obtained cellulose powder mixture, The method for producing alkali cellulose, comprising adjusting the water content in the cellulose powder mixture to 30 to 100% by mass with respect to the cellulose in the cellulose-containing raw material used in step 1 to obtain powdery alkali cellulose, And [2] cellulose in which the alkali cellulose produced by the production method is reacted with an etherifying agent It is an ether method of manufacturing. [Selection figure] None |