Title:
METHOD TO PRODUCE HIGH-RESISTANCE CELLULOSE AND HEMICELLULOSE FIBERS FROM LIGNOCELLULOSIC BIOMASS OF SUGARCANE LEAVES AND BUDS
Document Type and Number:
WIPO Patent Application WO/2013/008135
Kind Code:
A1
Abstract:
Method for production of cellulose and hemicellulose fibers from lignocellulose biomass obtained from sugarcane leaves and buds by applying a process comprising the stages of: a) Diminishing the particle size of the lignocellulose biomass to a range between 3 and 15 mm, b) Subjecting the product obtained to treatment with one or more solvents and/or a mixture of specific catalysts, c) Carry out sudden decompression to an atmospheric pressure, d) Collecting the pretreated material in a cyclone, e) Optionally separating the liquid and solid fractions through washing and filterung f) Optionally, treating the solid fraction in a reactor with a mixture of ethanol and chlorine dioxide, d) Wash the product obtained to achieve cellulose efficiency above 50% and of lignin of 5 to 7%, fiber lengtht in a range to 1,5 to 2,7 mm, breaking length (km) of 7,0 -8,9, Burst index (kPam 2/g) of 4,5 - 7,2 and Tear index (mNm2/g) of 8,2-8, The obtained high-resistance cellulose and hemicellulose is especially suitable for the paper production and polymer-type plastics.
Inventors:
BORRERO JORGE HUMBERTO (CO)
Application Number:
PCT/IB2012/053393
Publication Date:
January 17, 2013
Filing Date:
July 04, 2012
Export Citation:
Assignee:
UNIV DEL VALLE (CO)
BORRERO JORGE HUMBERTO (CO)
BORRERO JORGE HUMBERTO (CO)
International Classes:
D21C3/00; D21C1/10
Foreign References:
| US20100190973A1 | 2010-07-29 |
Other References:
DATABASE WPI Derwent World Patents Index; AN 1992-108776
Attorney, Agent or Firm:
FIGUEROA CARDOZO, Felipe Eduardo (Apto 202Edificio La Soleda, Bogotá 000, CO)
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Claims: