Title:
PREPARATION METHOD FOR MODIFIED LIGNIN AND FERTILIZER COMPOSITION CONTAINING MODIFIED LIGNIN
Document Type and Number:
WIPO Patent Application WO/2019/004761
Kind Code:
A1
Abstract:
The present invention relates to a preparation method for modified lignin, the method comprising the steps of: mixing hydrogen peroxide and lignin cakes to prepare a lignin solution; adding an iron ion to the lignin solution; centrifuging the iron ion-added lignin solution to remove a supernatant; and drying solids remaining after the removal of the supernatant, wherein the lignin cakes are prepared by acid hydrolysis of lignocellulosic biomass. The present invention also relates to a fertilizer composition containing the modified lignin.
Inventors:
LIM JONG-KOO (KR)
Application Number:
PCT/KR2018/007378
Publication Date:
January 03, 2019
Filing Date:
June 29, 2018
Export Citation:
Assignee:
GS CALTEX CORP (KR)
NAT UNIV GYEONGSANG IACF (KR)
NAT UNIV GYEONGSANG IACF (KR)
International Classes:
C07G1/00; C05F11/00
Foreign References:
| KR20160078937A | 2016-07-05 | |||
| KR100900455B1 | 2009-06-02 |
Other References:
LARS PASSAUER ET AL: "Activation of Pine Kraft lignin by Fenton-type oxidation for cross-linking with oligo(oxyethylene) diglycidyl ether", HOLZFORSCHUNG, vol. 65, no. 3, 1 May 2011 (2011-05-01), DE, pages 319 - 326, XP055680090, ISSN: 0018-3830, DOI: 10.1515/hf.2011.045
S.-Y. YOON ET AL: "The effect of hemicelluloses and lignin on acid hydrolysis of cellulose", ENERGY, vol. 77, 1 December 2014 (2014-12-01), AMSTERDAM, NL, pages 19 - 24, XP055680094, ISSN: 0360-5442, DOI: 10.1016/j.energy.2014.01.104
HUANG YU-LAN ET AL: "Impact of Organic Fertilizers and Iron-fertilizers on Morus Alba L. Chlorosis in Paddy Soils", ACTA AGRICULTURAE ZHEJIANGENSIS, vol. 27, no. 11, 1 January 2015 (2015-01-01), pages 1984 - 1989
S.-Y. YOON ET AL: "The effect of hemicelluloses and lignin on acid hydrolysis of cellulose", ENERGY, vol. 77, 1 December 2014 (2014-12-01), AMSTERDAM, NL, pages 19 - 24, XP055680094, ISSN: 0360-5442, DOI: 10.1016/j.energy.2014.01.104
HUANG YU-LAN ET AL: "Impact of Organic Fertilizers and Iron-fertilizers on Morus Alba L. Chlorosis in Paddy Soils", ACTA AGRICULTURAE ZHEJIANGENSIS, vol. 27, no. 11, 1 January 2015 (2015-01-01), pages 1984 - 1989
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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