Chemical characterization of pitch deposits produced in the manufacturing of high-quality paper pulps from hemp fibers
作者： Ana Gutiérrez , José C. del Río
DOI: 10.1016/J.BIORTECH.2004.12.008
关键词:
摘要: The composition of pitch deposits occurring in pulp sheets and mill circuits during soda/anthraquinone pulping elemental chlorine-free bleaching bast fibers industrial hemp (Cannabis sativa) was studied. Pitch were extracted with acetone, the extracts analyzed by gas chromatography (GC) chromatography/mass spectrometry (GC/MS). Acetone (15-25% deposits) constituted defoamers used at lipophilic extractives from fibers. Acetone-insoluble residues (75-85% pyrolysis-GC/MS presence absence tetramethylammonium hydroxide. These salts fatty acids (arising fibers) calcium, magnesium, aluminum other cations that identified deposits. It concluded inappropriate use defoamer together multivalent ions seemed to be among causes deposition problems reported here.
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Ana Gutiérrez, Javier Romero, José C.del Rı́o, Lipophilic extractives in process waters during manufacturing of totally chlorine free kraft pulp from eucalypt wood Chemosphere. ,vol. 44, pp. 1237- 1242 ,(2001) , 10.1016/S0045-6535(00)00271-X
Ana Gutiérrez, José C del Rı́o, Francisco J González-Vila, Francisco Martı́n, Analysis of lipophilic extractives from wood and pitch deposits by solid-phase extraction and gas chromatography Journal of Chromatography A. ,vol. 823, pp. 449- 455 ,(1998) , 10.1016/S0021-9673(98)00356-2
Ana Gutiérrez, José C del Rı́o, Marı́a Jesús Martı́nez, Angel T Martı́nez, The biotechnological control of pitch in paper pulp manufacturing. Trends in Biotechnology. ,vol. 19, pp. 340- 348 ,(2001) , 10.1016/S0167-7799(01)01705-X
Carmen S. R. Freire, Armando J. D. Silvestre, Cláudia C. L. Pereira, Carlos Pascoal Neto, José A. S. Cavaleiro, NEW LIPOPHILIC COMPONENTS OF PITCH DEPOSITS FROM AN EUCALYPTUS GLOBULUS ECF BLEACHED KRAFT PULP MILL Journal of Wood Chemistry and Technology. ,vol. 22, pp. 55- 66 ,(2002) , 10.1081/WCT-120004434
José C del Rı́o, Ana Gutiérrez, Francisco J González-Vila, Francisco Martı́n, Javier Romero, Characterization of organic deposits produced in the kraft pulping of Eucalyptus globulus wood Journal of Chromatography A. ,vol. 823, pp. 457- 465 ,(1998) , 10.1016/S0021-9673(98)00179-4
J.C del Rı́o, A Gutiérrez, F.J González-Vila, F Martı́n, Application of pyrolysis-gas chromatography-mass spectrometry to the analysis of pitch deposits and synthetic polymers in pulp and pulp mills Journal of Analytical and Applied Pyrolysis. ,vol. 49, pp. 165- 177 ,(1999) , 10.1016/S0165-2370(98)00099-0
Ana Gutiérrez, José C. del Río, Lipids from Flax Fibers and Their Fate in Alkaline Pulping Journal of Agricultural and Food Chemistry. ,vol. 51, pp. 4965- 4971 ,(2003) , 10.1021/JF034370T
José C del Rı́o, Javier Romero, Ana Gutiérrez, Analysis of pitch deposits produced in Kraft pulp mills using a totally chlorine free bleaching sequence Journal of Chromatography A. ,vol. 874, pp. 235- 245 ,(2000) , 10.1016/S0021-9673(00)00111-4
Ana Gutiérrez, Isabel M. Rodríguez, José C. del Río, Chemical characterization of lignin and lipid fractions in kenaf bast fibers used for manufacturing high-quality papers. Journal of Agricultural and Food Chemistry. ,vol. 52, pp. 4764- 4773 ,(2004) , 10.1021/JF049540W
C. S. R. Freire, A. J. D. Silvestre, C. Pascoal Neto, Oxidized derivatives of lipophilic extractives formed during hardwood kraft pulp bleaching Holzforschung. ,vol. 57, pp. 503- 512 ,(2003) , 10.1515/HF.2003.075