Methods for preparing alkali cellulose and cellulose ether

摘要

Provided is an efficient method for preparing alkali cellulose having the low water content and a uniform alkali distribution therein. More specifically, provided is a method for continuously preparing alkali cellulose comprising steps of bringing pulp into continuous contact with an alkali metal hydroxide solution to generate a contact mixture and then draining the contact mixture by a centrifugal separator. Also provided is a method for preparing cellulose ether comprising a step of etherifying the alkali cellulose.