Pulp-properties Obtained from the Delignification with MONOETHANOL AMINE
نویسندگان
چکیده
منابع مشابه
Effect of Hydroxyl Radical on the Selectivity of Delignification during Oxygen Delignification of Bamboo Pulp
The main challenge in the oxygen delignification process is the improvement of selectivity. To further understand the effect of the amount of hydroxyl radicals on the selectivity of oxygen delignification, in this work, the hydroxyl radicals were generated by the improved Fenton reaction system and were quantified by UV spectrophotometry. Antioxidants such as ascorbic acid were applied for the ...
متن کاملPaper pulp delignification using laccase and natural mediators
Paper pulp delignification using laccase and natural mediators Susana Camarero a, David Ibarra a, Ángel T. Martı́nez a,∗, Javier Romero b, Ana Gutiérrez c, José C. del Rı́o c a Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, E-28040 Madrid, Spain b Centro de Investigación y Tecnologı́a, ENCE, Carretera de Campañó, Ribeiro Vao, E-36157 Pontevedra, Spain c Instituto de Recursos Natur...
متن کاملElectrochemical Delignification of Wood Pulp Using Polyoxometalate Mediators
It has been found that polyoxometalates (POMs) can act as mediators in the electrochemical oxidation of lignin in pulps. An electrochemical cell, with a Nafion membrane separating the anode and cathode compartments, was used in the delignification experiments. A softwood kraft pulp was placed in the anode compartment with a buffered 0.01M solution of the polyoxometalate Na5[SiVW11O40]. During e...
متن کاملDelignification of Sugarcane Bagasse with Alkali and Peracetic Acid and Characterization of the Pulp
Sugarcane bagasse was delignified with alkali and peracetic acid in a two-stage process to obtain pulps with high yield and low kappa number. The experimental results indicated that alkali pretreatment prior to peracetic acid (PAA) delignification could significantly reduce PAA loading by partially removing lignin and swelling the fibers. An optimum condition for the two-stage delignification w...
متن کاملDelignification of eucalypt kraft pulp with manganese-substituted polyoxometalate assisted by fungal versatile peroxidase.
Oxidation of the manganese-substituted polyoxometalate [SiW(11)Mn(II)(H(2)O)O(39)](6-) (SiW(11)Mn(II)) to [SiW(11)Mn(III)(H(2)O)O(39)](5-) (SiW(11)Mn(III)), one of the most selective polyoxometalates for the kraft pulp delignification, by versatile peroxidase (VP) was studied. First, SiW(11)Mn(II) was demonstrated to be quickly oxidized by VP at room temperature in the presence of H(2)O(2) (K(m...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1973
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.27.3_123