Title:
バイオマス・パルプ化のプロセス水または廃液からヘミセルロースを単離する方法
Document Type and Number:
Japanese Patent JP6752359
Kind Code:
B2
Abstract:
The invention relates to a process for isolation of hemicelluloses from biomass pulping process waters or spent liquors with removal of suspended solids, concentration of the product and purification of the product by removal of inorganic salts and low molecular weight substances. It is characterized in that the hemicellulose isolation process conditions at several separation/purification stages are adjusted separately by e.g. pH adjustment. The invention further relates to a plant for carrying out the process. With such process and plant it is possible to recover most of the suspended solids, especially xylan and other hemicelluloses.
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Inventors:
Shagaev Oleg
Wiesegger Lucas
Wiesegger Lucas
Application Number:
JP2019512192A
Publication Date:
September 09, 2020
Filing Date:
July 27, 2017
Export Citation:
Assignee:
Andritz Actuen Gezel Shaft
International Classes:
C08B15/08; D21C11/00
Domestic Patent References:
| JP2011019489A |
Foreign References:
| WO2012161916A1 | ||||
| WO2004013409A1 | ||||
| WO2002040767A1 | ||||
| US20140163245 | ||||
| US20120196233 | ||||
| US4470876 |
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith
Katsunori Uenishi
Ichiro Torayama
Blacksmith
Katsunori Uenishi
Ichiro Torayama