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The method to manufacture recycled pulp fiber from the used absorbent article containing a super absorbent polymer, a pulp fiber, and the excretion

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国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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SUBJECT of the Invention The method of manufacturing recycled pulp fiber from a used absorbent article that aqueous solution collect|recovered from a manufacturing process can be made recyclable, and the quantity of the water used as aqueous solution can be reduced is provided. PROBLEM to be solved This method mixes isolation|separation process S10 which each isolate|separates the inactivation aqueous solution containing the excretion and a pulp fiber, the 1st oxidizing agent which can decompose|disassemble the excretion, and the isolate|separated inactivation aqueous solution from the liquid mixture with which the inactivation aqueous solution which can inactivate a super absorbent polymer, and a used absorbent article were mixed, The excretion contained in inactivation aqueous solution is decomposed|disassembled, It is a method provided with viscosity-lowering process S22 to which the viscosity of inactivation aqueous solution is reduced, and resupplication process S24 which returns the inactivation aqueous solution in which the excretion contains the degradation product decomposed|disassembled and formed to a isolation|separation process. SELECTED DRAWINGS FIG. 3 [MAT_IMAGE 000002]
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国家林业和草原科学数据中心
创建时间:
2023-02-12
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