发明名称 |
METHOD FOR PRODUCTION OF PULP |
摘要 |
<p>A pulp production process can produce pulp at high yield without using sodium sulfide and high-temperature/high-pressure conditions if compared with the Kraft process and also collect lignin. Pulp is produced by processing wood chips for hydrophlicization at room temperature, using a dilute caustic soda aqueous solution, selectively partially modifying lignin in dilute nitric acid and digesting the wood chips by means of a dilute caustic soda aqueous solution under the atmospheric pressure. Lignin is agglomerated and sorted out from the isolated black liquor.</p> |
申请公布号 |
EP2151521(A1) |
申请公布日期 |
2010.02.10 |
申请号 |
EP20080703835 |
申请日期 |
2008.01.15 |
申请人 |
NIHON CELLULOSE CO., LTD.;KABUSHIKI KAISHA TOA KOGYO |
发明人 |
AKO, AKIRA;KOIKE, KAZUMASA |
分类号 |
D21C1/04 |
主分类号 |
D21C1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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