Effect of Hemicellulose Pre-extraction on the Properties and Bleachability of Aspen (Populus tremuloides) Chemithermomechanical Pulp

被引：6

作者：

Liu, Wei ^{[1
,2
,3
]}

Hou, Qingxi ^{[1
]}

Mao, Changbin ^{[2
]}

Yuan, Zhirun ^{[2
]}

Li, Kecheng ^{[3
]}

机构：

[1] Tianjin Univ Sci & Technol, Tianjin Key Lab Pulp & Paper, Tianjin 300457, Peoples R China

[2] FPInnovations, Pointe Claire, PQ H9R 3J9, Canada

[3] Univ New Brunswick, Dept Chem Engn, Fredericton, NB E3B 5A3, Canada

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2012年 / 51卷 / 34期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HOT-WATER EXTRACTION; HIGH-YIELD PULP; RENEWABLE SOURCES; HARDWOOD KRAFT; PART I; PRETREATMENT; FIBERS; FILMS; TMP;

D O I：

10.1021/ie300265s

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Pre-extraction of hemicelluloses prior to pulping and conversion of the extracted hemicelluloses to other byproducts will provide additional revenue to the traditional pulp and paper industry. The effect of hemicelluloses pre-extraction with dilute sulfuric acid on the properties and bleachability of aspen (Populus tremuloides) chemithermomechanical pulp (CTMP) was investigated. The acid pre-extraction significantly reduced refining energy consumption to a given freeness. However, at the same freeness, the acid pre-extraction resulted in the reduction of bulk, tensile index, and zero-span breaking length, fewer long fibers and more fines, but an increase of the Scott bond strength. Alkaline peroxide bleaching can compensate the strength loss, but the bleachability of pulps with acid pre-extraction was lower than that of the control.

引用

页码：11122 / 11127

页数：6

共 25 条

[1] Hemicelluloses Prior to Aspen Chemithermomechanical Pulping: Pre-Extraction, Separation, and Characterization
Liu, Wei
Hou, Qingxi
Mao, Changbin
Yuan, Zhirun
Li, Kecheng
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2012, 60 (19) : 4880 - 4885
[2] Impact of hemicellulose pre-extraction for bioconversion on birch Kraft pulp properties
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[3] EFFECTS OF HEMICELLULOSES PRE-EXTRACTION ON THE PROPERTIES OF ASPEN CHEMI-THERMOMECHANICAL PULP AND BLEACHED PULP
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Hou, Qingxi
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[4] Extracting hemicelluloses prior to aspen chemi-thermomechanical pulping: Effects of pre-extraction on pulp properties
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[6] Time-domain NMR study of the drying of hemicellulose extracted aspen (Populus tremuloides Michx.)
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