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PROCESS FOR PRODUCING A WATER-SOLUBLE CELLULOSE DERIVATIVE HAVING A REDUCED CONTENT OF WATER-INSOLUBLE PARTICLES.
PROCESS FOR PRODUCING A WATER-SOLUBLE CELLULOSE DERIVATIVE HAVING A REDUCED CONTENT OF WATER-INSOLUBLE PARTICLES.
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机译:具有减少的水不溶性颗粒含量的水溶性纤维素衍生物的生产方法。
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摘要
A process for producing a water-soluble cellulose derivative of a reduced content of water-insoluble particles comprises the steps of a) reacting cellulose with an alkaline material to produce alkali cellulose, b) reacting the produced alkali cellulose with one or more derivatizing agents to produce a water-soluble cellulose derivative, c) washing the produced cellulose derivative with an aqueous liquid once or several times to provide a moist cellulose derivative having a water content of 25 to 85 percent, based on the total weight of the moist cellulose derivative, d) subjecting the moist cellulose derivative to homogenization to form the moist cellulose derivative to a paste, and e) pressing the paste through a filter of a pore size of up to 200 µm.
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