发明名称 |
METHOD FOR RECOVERY/REUSE OF N-OXYL COMPOUND |
摘要 |
<p>An effluent produced in oxidation of a cellulosic material with an oxidizing agent in the presence of an N-oxyl compound and a bromide and/or iodide is deionized by electrodialysis to an inorganic salt concentration of less than 0.4%, whereby the N-oxyl compound in the effluent is concentrated and recovered. The N-oxyl compound thus recovered can be reused in oxidation of a cellulosic material. Preferably, the effluent is subjected to reduction treatment and ion exchange resin treatment prior to the electrodialysis.</p> |
申请公布号 |
EP2415761(A4) |
申请公布日期 |
2012.09.26 |
申请号 |
EP20100761496 |
申请日期 |
2010.02.16 |
申请人 |
NIPPON PAPER INDUSTRIES CO., LTD. |
发明人 |
MIYAWAKI, SHOICHI;KATSUKAWA, SHIHO;ABE, HIROSHI;IIJIMA, YUKO;ISOGAI, AKIRA |
分类号 |
C07D211/94;B01J31/02;B01J38/00;C08B15/02;D01F2/00 |
主分类号 |
C07D211/94 |
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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