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Title:
TREATMENT METHOD OF PLANT-BASED RAW MATERIAL
Document Type and Number:
Japanese Patent JP2013198424
Kind Code:
A
Abstract:

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.

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:
TOYODA KAZUMASA
Application Number:
JP2012068404A
Publication Date:
October 03, 2013
Filing Date:
March 23, 2012
Export Citation:
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Assignee:
JUJO PAPER CO LTD
International Classes:
C12P7/10; B09B3/00; C08H7/00; C12P19/14; D21C3/04; D21C11/00
Domestic Patent References:
JPH01221586A1989-09-05
JP2010216021A2010-09-30
JP2008169497A2008-07-24
JP2003201689A2003-07-18
JPH06158575A1994-06-07
JP2010202987A2010-09-16
JPS62502553A1987-10-01
JP2009167542A2009-07-30
JP2012046848A2012-03-08
JPS60227640A1985-11-12
JP2007270382A2007-10-18
JP2006283211A2006-10-19
Foreign References:
WO2005121442A12005-12-22
Other References:
PENAS, D.V., ET AL.: "Chemical-Biotechnological Processing of Pine Bark", J. CHEM. TECH. BIOTECHNOL., vol. 54, no. 1, JPN6015043198, 1992, pages 63 - 74, XP000267313, ISSN: 0003183498
KUZNETSOVA, S. A., ET AL.: "Environmentally friendly catalytic production of cellulose by abies wood delignification in "acetic", CHEMISTRY FOR SUSTAINABLE DEVELOPMENT, vol. 11, no. 1, JPN6015043199, 2003, pages 141 - 147, ISSN: 0003183499
Attorney, Agent or Firm:
Junko Oda
Atsushi Yamada



 
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