Solvent screening for the fractionation of industrial kraft lignin

被引：179

作者：

Duval, Antoine ^{[1
,2
]}

Vilaplana, Francisco ^{[1
,3
]}

Crestini, Claudia ^{[4
]}

Lawoko, Martin ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Dept Fiber & Polymer Technol, WWSC, SE-10044 Stockholm, Sweden

[2] Univ Roma Tor Vergata, Dept Chem Sci & Technol, I-00133 Rome, Italy

[3] KTH Royal Inst Technol, AlbaNova Univ Ctr, Sch Biotechnol, Div Glycosci, SE-10691 Stockholm, Sweden

[4] Univ Roma Tor Vergata, Dept Chem Sci & Technol, I-00133 Rome, Italy

来源：

HOLZFORSCHUNG | 2016年 / 70卷 / 01期

关键词：

fractionation; Hansen solubility parameters; kraft lignin; solubility; solvent; SIZE-EXCLUSION CHROMATOGRAPHY; TECHNICAL LIGNINS; SUCCESSIVE EXTRACTION; ORGANIC-SOLVENTS; LITHIUM CHLORIDE/N; N-DIMETHYLACETAMIDE; ORGANOSOLV EXTRACTION; MOBILE-PHASE; MOLAR-MASS; SOLUBILITY; SEPARATION;

D O I：

10.1515/hf-2014-0346

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The polydispersity of commercially available kraft lignins (KLs) is one of the factors limiting their applications in polymer-based materials. A prerequisite is thus to develop lignin fractionation strategies compatible with industrial requirements and restrictions. For this purpose, a solvent-based lignin fractionation technique has been addressed. The partial solubility of KL in common industrial solvents compliant with the requirements of sustainable chemistry was studied, and the results were discussed in relation to Hansen solubility parameters. Based on this screening, a solvent sequence is proposed, which is able to separate well-defined KL fractions with low polydispersity.

引用

页码：11 / 20

页数：10

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