Characterisation of speck impurity sources in cellulose pulp by analytical pyrolysis

被引：0
|
作者：
Silverio, Flaviano O. [1 ]
Barbosa, Luiz C. A. [1 ]
Maltha, Celia R. A. [1 ]
Pinho, Gevany P. [2 ]
Fidencio, Paulo H. [1 ]
Pilo-Veloso, Dorila [1 ]
Souza, Luciana C. [3 ]
机构：
[1] Univ Fed Vicosa, Dept Chem, BR-36570000 Vicosa, MG, Brazil
[2] Univ Fed Vicosa, BR-38810000 Rio Paranaiba, MG, Brazil
[3] Qual & Control Dept Cenibra, BR-35160970 Ipatinga, MG, Brazil
来源：
APPITA JOURNAL | 2009年 / 62卷 / 04期
关键词：
Analytical pyrolysis; Pitch; Dirt specks in pulp; Polymeric contaminants; wood pulp; WOOD EXTRACTIVES; CHEMICAL-COMPOSITION; GAS CHROMATOGRAPHY; EUCALYPTUS; PITCH;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
Pyrolysis coupled with gas chromatography and mass spectrometry (Py-GC-MS) was used for characterising the chemical composition of specks and possible specks impurities sources in cellulose fibre (additives, polymeric materials and wood extracts) found in the Brazilian pulp mills. Speck pyrograms were analysed and compared with reference sample pyrograms, showing that the main source of impurities is the polymeric materials containing Teflon. The results showed that the visual classification is not totally reliable. These studies demonstrate that the Py-GC-MS could be a complementary tool to correctly facilitate classification of the specks, to thus trace them back to their source, and to define strategies for their control.
引用
收藏
页码：285 / 289
页数：5
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