Title:
PROCESS FOR MANUFACTURING DISSOLVING KRAFT PULP
Document Type and Number:
WIPO Patent Application WO/2014/157493
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a technique for manufacturing a high-quality dissolving kraft pulp in a high yield. A process for manufacturing a dissolving kraft pulp which comprises (a) a step for subjecting wood chips to hydrothermal treatment and thereby hydrolyzing hemicellulose contained in the wood chips, (b) a step for washing the treated wood chips and recovering the resulting wood chips, and (c) a step for subjecting the recovered wood chips to kraft cooking and thereby forming a dissolving kraft pulp, wherein in the kraft cooking, a quinone compound is added in an amount of 0.01 to 1.5 mass% relative to oven-dry wood chips.
Inventors:
TAKAYAMA MASATO (JP)
ONO ATSUSHI (JP)
SUYAMA KENICHIRO (JP)
SATO KANA (JP)
OIZUMI SHUNSUKE (JP)
KUROSU KAZUHIRO (JP)
ONO ATSUSHI (JP)
SUYAMA KENICHIRO (JP)
SATO KANA (JP)
OIZUMI SHUNSUKE (JP)
KUROSU KAZUHIRO (JP)
Application Number:
PCT/JP2014/058804
Publication Date:
October 02, 2014
Filing Date:
March 27, 2014
Export Citation:
Assignee:
JUJO PAPER CO LTD (JP)
International Classes:
D21C1/02; D21C3/00
Foreign References:
| JP2002533587A | 2002-10-08 | |||
| JP2004256925A | 2004-09-16 | |||
| JPS569491A | 1981-01-30 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
Ono Shinjiro (JP)
Ono Shinjiro (JP)
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