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METHOD FOR RECOVERING PULP FIBER FROM USED SANITARY PRODUCT AND RECYCLED PULP OBTAINED THEREBY
专利权人:
Unicharm Corporation
发明人:
KONISHI, Takayoshi,HIRAOKA, Toshio,KAMEDA, Noritomo,ICHIURA, Hideaki,NAKAOKA, Hiroko
申请号:
EP15845324
公开号:
EP3199254A4
申请日:
2015.08.07
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
Pulp fiber containing little ash is effectively recovered from a used sanitary product containing the pulp fiber and a polymer absorbent. The method according to the present invention comprises: a step for treating the used sanitary product with an ozone-containing gas and thus decomposing and removing at least a portion of the polymer absorbent in the used sanitary product and a step for stirring the used sanitary product, that has been treated with the ozone-containing gas, in water or an aqueous solution containing an antiseptic and thus decomposing the used sanitary product into constituents. If required, the method may further comprise a step for separating the pulp fiber from the decomposition product obtained by the decomposition step.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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