发明名称 Method for Producing Alkali Cellulose Comprising Removal of Cellulose Particles
摘要 There is provided a method for producing alkali cellulose comprising efficiently removing cellulose particles which are introduced by a pulp and have accumulated in a circulating alkali metal hydroxide solution. More specifically, there is provided a method for producing alkali cellulose, comprising at least the steps of bringing a pulp into contact with an alkali metal hydroxide solution to obtain a contact product, draining the contact product by a drainer, reusing an alkali metal hydroxide solution recovered in the step of draining for contact with a pulp, and adjusting an amount of cellulose particles in the recovered alkali metal hydroxide solution to 0.5% by weight or less prior to reusing for contact with the pulp.
申请公布号 EP2489680(A1) 申请公布日期 2012.08.22
申请号 EP20120156045 申请日期 2012.02.17
申请人 SHIN-ETSU CHEMICAL CO., LTD. 发明人 NARITA, MITSUO
分类号 C08B1/08;C08B11/00;C08B11/193 主分类号 C08B1/08
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