| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing alkali cellulose, in which the cellulose polymerization degree decreases little and few bases are used, and to provide a method for producing cellulose ether using the obtained alkali cellulose. <P>SOLUTION: [1] The method for producing alkali cellulose includes: a step 1 for obtaining a cellulose-containing raw material (II) containing cellulose having a crystallinity degree of 10-55% by processing a cellulose-containing raw material (I) with a pulverizer; and a step 2 for obtaining alkali cellulose by adding, to the obtained cellulose-containing raw material (II), 0.6-1.5 mol of a basic compound per 1 mol of an anhydroglucose unit constituting the cellulose and by adding 20-100 mass% of water to the cellulose. [2] The method for producing cellulose ether produces the cellulose ether by means of the reaction between the alkali cellulose produced in the production method and an etherification agent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
