Results 31 to 40 of about 52,657 (182)
Investigation on production of bleachable chemi-mechanical pulp from wheat straw [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2011 In an attempt to develop pulping process suitable for small scale implementation, production of bleachable chemi-mechanical pulp from wheat starw is investigated.
Ahmad Jahan latibari
doaj +1 more source
BioResources, 2015 A TCF bleaching sequence consisting of a urea pretreatment stage (U), laccase-mediator system stage (L), alkaline extraction stage (E), and hydrogen peroxide bleaching stage (P) was used to study the effect of five independent variables on the dependent ...
Luisa L. García-Fuentevilla +4 more
doaj +1 more source
Low Kappa Pulping and TCF Bleaching.
JAPAN TAPPI JOURNAL, 1994 It is long time since the problem of dioxin was brought up, and restrictions of BOD, COD and also severe requirements about AOX reduction for bleach effluent was proposed in different countries.To cope with the requirements, KAMYR developed MCC and ITC which together with MCO2can produce low kappa pulp with retaining pulp strength at inlet of the ...
openaire +2 more sources
Applicability of Microbial Xylanases in Paper Pulp Bleaching: A Review
BioResources, 2014 The pulp and paper industries are attempting to bring changes to the bleaching process to minimize the use of chlorine to satisfy regulatory and market demands. Xylanases offer a cost-effective way for mills to realize a variety of benefits in bleaching.
Avdhesh Kumar Gangwar +2 more
doaj +1 more source
DEVELOPMENT TECHNOLOGY OF SULFITE PULP TCF BLEACHING FOR CHEMICAL PROCESSING
chemistry of plant raw material, 2022 An environmentally friendly chlorine-free technology for producing wood sulfite soluble pulp using only one oxidizing bleaching agent – hydrogen peroxide has been developed: unconventional catalyzed peroxide delignification and hydrogen peroxide bleaching.
Firdaves Kharisovna Khakimova +3 more
openaire +2 more sources
TCF-1 limits intraepithelial lymphocyte antitumor immunity in colorectal carcinoma
, 2023 Intraepithelial lymphocytes (IELs), including αβ and γδ T cells (T-IELs), constantly survey and play a critical role in maintaining the gastrointestinal epithelium.
Maxine Smith (18223241) +25 more
core +1 more source
Characterisation of human hair follicle development
Journal of Anatomy, EarlyView.Schematic of hair follicle development in human skin. Hair follicle primordia of similar sizes, but different densities, are laid out across the skin. The distinction between terminal and vellus hair sites is not obvious at early stages of hair follicle development.
Zoe R. Sudderick +4 more
wiley +1 more source
Lignin Valorisation from Side-Streams Produced during Agriculture Waste Pulping and TCF Bleaching
Chemical Engineering Transactions, 2016 The lignocellulosic raw materials used for cellulose production contain other interesting components such lignin. In this work, an approach for the valorisation of side-streams from cellulose extraction and purification processes was carried out.
J. Fernández-Rodríguez +4 more
doaj +1 more source
TAPPI Journal, 2017 An early stage techno-economic analysis was performed to compare a traditional elemental chlorine free (ECF) sequence (O O D0 [EOP] D1 P) with the proposed totally chlorine free (TCF) sequence (O O A [ZEO]1 [ZEO]2 P)] for a bleached eucalyptus kraft pulp mill. Similar operating costs (ECF = US$465/a.d. metric ton; TCF = US$468/a.d.
TIAGO DE ASSIS +6 more
openaire +1 more source
From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp
Journal of Applied Polymer Science, Volume 143, Issue 16, April 20, 2026.This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed +8 more
wiley +1 more source