| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a dissolving pulp using a lignocellulosic material as raw material, and whose whiteness and ash content can be adjusted to desired ones, a dissolving pulp produced by the production method, further, a method for producing a dissolving pulp in which an environmental load caused by discharge water is reduced, and also, equipment investment and running cost are reduced, and a dissolving pulp produced by the production method.SOLUTION: Provided is a method for producing a dissolving pulp by the hydrolysis-alkali digestion method, in which a pulp after the hydrolysis-alkali digestion is bleached, is thereafter subjected to alkali hydrogen oxide treatment, is successively added with acid under un-cleaning, and is subjected to acid treatment. |
