Nypa fruticans Frond Waste for Pure Cellulose Utilizing Sulphur-Free and Totally Chlorine-Free Processes [PDF]
Molecules, 2022 The search for alternative methods for the production of new materials or fuel from renewable and sustainable biomass feedstocks has gained increasing attention.
Evelyn +4 more
doaj +2 more sources
ECF AND TCF BLEACHING OF SECONDARY FIBER PULP
Ciência Florestal, 2009 In this study, ECF and TCF bleaching processes were evaluated for the bleaching of a deinked mixed office waste (MOW) pulp sample produced in a pilot plant. The sample was bleached by all processes to a target brightness of 78 % ISO minimum.
Gustavo Ventorim +3 more
doaj +2 more sources
TCF BLEACHING CHARACTER OF SODA-ANTHRAQUINONE PULP FROM OIL PALM FROND
BioResources, 2011 The OQP, OQPO, and OLQP bleaching sequences have been applied to oil palm frond soda-anthraquinone pulp. Oxygen delignification resulted in a delignification of approximately half of the kappa number.
Xiwen Wang, +3 more
doaj +2 more sources
The effect of TCF bleaching before and after refining on the CMP pulp properties [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2016 The objective of this study was determination of the best method of bleaching including refining and bleaching (RB) or bleaching and then refining (BR) on chemical mechanical pulp (CMP) for the production of newsprint. Wood raw material consists of mixed
Mohtaba Goli +3 more
doaj +2 more sources
CHARACTERIZATION OF Eucalyptus grandis KRAFT PULPS TREATED WITH PHOSPHONATES IN DIFFERENT STAGES OF TCF BLEACHING [PDF]
BioResources, 2011 The addition of a phosphonated chelant (DTPMPA) at different points of a TCF bleaching sequence and its effect on pulp properties were studied in this work.
Maria Cristina Area +5 more
doaj +4 more sources
Journal of Natural Fibers, 2022 In this work, we successfully produced Totally Chlorine Free (TCF) Bleached pulp from olive tree pruning residues using the soda-anthraquinone pulping method. TCF pulp bleaching was carried out using a chelating–hydrogen peroxide bleaching sequence.
Imen Landolsi +4 more
doaj +1 more source
Investigation and Comparison of Bagasse Soda Pulps Properties Bleached with Total Chlorine Free (TCF) and Elemental Chlorine Free (ECF) Stages [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2017 The objective of this research was accomplished on the effects of total chlorine free (TCF) and elemental chlorine free (ECF) bleaching on optical and mechanical properties of bagasse soda pulps.
Ramin Vaysi, Ali reza Bagheri
doaj +1 more source
Homogeneous microwave-assisted carboxymethylation from totally chlorine free bleached olive tree pruning residues pulp [PDF]
Journal of the Serbian Chemical Society, 2022 This study deals with a new methodology for the production of carboxymethyl cellulose (CMC) from olive pruning residues, agricultural by-products. Cellulose was extracted by the soda–anthraquinone pulping process, and the pulp bleaching was performed ...
Landolsi Imen +4 more
doaj +1 more source
Optimization of a Laccase-Mediator Stage for TCF Bleaching of Flax Pulp [PDF]
Holzforschung, 2003 SummaryFlax pulp obtained by anthraquinone-soda pulping, resulting in a kappa number of 11.1, a viscosity of 950 ml/g and 36.7% ISO brightness, was bleached in a totally chlorine-free sequence using the enzyme laccase from the fungusPycnoporus cinnabarinusand 1-hydroxybenzotriazole (HBT) as redox mediator (stage L), followed by a hydrogen peroxide ...
García, Olga +6 more
openaire +3 more sources
BioResources, 2015 The application of totally chlorine-free bleaching (TCF) is well recognised for its environmental compatibility. However, its application is restricted in comparison to a chlorine-based bleaching sequence.
Yin Hui Chong +6 more
doaj +1 more source