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Title: Methods of pretreating comminuted cellulosic material with carbonate-containing solutions

Abstract

Methods of pretreating comminuted cellulosic material with an acidic solution and then a carbonate-containing solution to produce a pretreated cellulosic material are provided. The pretreated material may then be further treated in a pulping process, for example, a soda-anthraquinone pulping process, to produce a cellulose pulp. The pretreatment solutions may be extracted from the pretreated cellulose material and selectively re-used, for example, with acid or alkali addition, for the pretreatment solutions. The resulting cellulose pulp is characterized by having reduced lignin content and increased yield compared to prior art treatment processes.

Inventors:
Publication Date:
Research Org.:
The Research Foundation of State University of New York (Albany, NY)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080451
Patent Number(s):
8,303,767
Application Number:
12/933,185
Assignee:
The Research Foundation of State University of New York (Albany, NY) CHO
DOE Contract Number:  
FG02-06ER64266
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Francis, Raymond. Methods of pretreating comminuted cellulosic material with carbonate-containing solutions. United States: N. p., 2012. Web.
Francis, Raymond. Methods of pretreating comminuted cellulosic material with carbonate-containing solutions. United States.
Francis, Raymond. Tue . "Methods of pretreating comminuted cellulosic material with carbonate-containing solutions". United States. https://www.osti.gov/servlets/purl/1080451.
@article{osti_1080451,
title = {Methods of pretreating comminuted cellulosic material with carbonate-containing solutions},
author = {Francis, Raymond},
abstractNote = {Methods of pretreating comminuted cellulosic material with an acidic solution and then a carbonate-containing solution to produce a pretreated cellulosic material are provided. The pretreated material may then be further treated in a pulping process, for example, a soda-anthraquinone pulping process, to produce a cellulose pulp. The pretreatment solutions may be extracted from the pretreated cellulose material and selectively re-used, for example, with acid or alkali addition, for the pretreatment solutions. The resulting cellulose pulp is characterized by having reduced lignin content and increased yield compared to prior art treatment processes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Patent:

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