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Title:
A disposal method of vegetable system materials
Document Type and Number:
Japanese Patent JP5938979
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently obtain plant fibers from a plant-based raw material, that is difficult to delignify, by oxidizing a lignin component contained in the plant-based raw material under mild conditions, the fibers containing cellulose and hemicellulose with less physical/chemical denaturation.SOLUTION: A plant-based raw material is delignified in a carboxylic acid solvent containing carboxylic acid, preferably acetic acid, and hydrogen peroxide under normal temperature and normal pressure. This invention enables bleached plant fibers with less physical/chemical damage to be produced without the need of a special apparatus, the treatment method being useful as a recovery method of the carboxylic acid solvent and lignin/plant components.

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Inventors:
Kazumasa Toyota
Application Number:
JP2012068404A
Publication Date:
June 22, 2016
Filing Date:
March 23, 2012
Export Citation:
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Assignee:
NIPPON PAPER INDUSTRIES CO.,LTD.
International Classes:
B09B3/00; C12P7/10; C08H7/00; C12P19/14; D21C3/04; D21C11/00
Domestic Patent References:
JP1221586A
JP62502553A
JP2009167542A
JP2012046848A
JP60227640A
JP2007270382A
JP2006283211A
JP2010216021A
JP2008169497A
JP2003201689A
JP6158575A
JP2010202987A
Foreign References:
WO2005121442A1
Other References:
Penas, D.V., et al.,Chemical-Biotechnological Processing of Pine Bark,J. Chem. Tech. Biotechnol.,1992年,Vol.54, No.1,63-74
Kuznetsova, S. A., et al.,Environmentally friendly catalytic production of cellulose by abies wood delignification in "acetic acid-hydrogen peroxide-water" media,Chemistry for Sustainable Development,2003年,Vol.11, No.1,141-147,URL,http://www.sibran.ru/upload/iblock/72e/72eb4427fb49bdfef4394ba1f628dcf2.pdf
Attorney, Agent or Firm:
Junko Oda
Atsushi Yamada



 
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