Theoretical Fundamentals on Oxygn Bleaching and Pulping
نویسندگان
چکیده
منابع مشابه
Arundo donax L. reed: new perspectives for pulping and bleaching. 5. Ozone-based TCF bleaching of organosolv pulps.
Three selected alkali-based organosolv pulps (alkali-sulfite-anthraquinone-methanol (ASAM), alkali-anthraquinone-methanol (organocell) and ethanol-soda) from agrofibre crop giant reed (Arundo donax L.) were bleached by an ozone-based TCF (totally chlorine- free) bleaching sequence AZE(R)QP (where A is an acidic pulp pre-treatment, Z is an ozone stage, (E(R)) is an alkaline extraction in the pre...
متن کاملPapermaking Fibers from Giant Reed (arundo Donax L.) by Advanced Ecologically Friendly Pulping and Bleaching Technologies
The anatomical structure and chemical composition of the stem-wall material of giant reed is considered from the viewpoint of raw material characterization for industrial fiber production. The effect of stem morphology (nodes and internodes) on pulping results and general pulp properties is discussed. The advantages of application of modern organic solvent based (organosolv) pulping technologie...
متن کاملOptimization of Ecf Bleaching and Refining of Kraft Pulping from Olive Tree Pruning
The aim of the present work was to find an optimum kraft pulping process for olive tree pruning (OTP) in order to produce a bleachable grade pulp of Kappa number about 17. The kraft pulp produced under optimized conditions showed a viscosity of 31.5 mPa.s and good physical, mechanical, and optical properties, which are acceptable for paper grade production. The strength and optical properties w...
متن کاملPROCESS OPTIMIZATION IN KRAFT PULPING, BLEACHING, AND BEATING OF Leucaena diversifolia
A variety of the Leucaena genus, Leucaena diversifolia, was used for pulp and paper making by kraft and refining processes and a OD(EP)DP bleaching sequence. The same species has been suggested as an energy crop and, in fact, this species used shows a high gross heating value; besides, this variety of Leucaena has appropriate characteristics for pulp and paper making. The holocellulose content ...
متن کاملTheoretical Fundamentals of Search Engine Optimization Based on Machine Learning
The theoretical basis of search engine optimization (SEO) process, metrics of its efficiency and the algorithm of performance were proposed. It is based on the principles of situation control, machine learning, semantic net building, data mining and service oriented architecture as IT solution. The main idea of the scientific work is the use of situation control as a learning method for search ...
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: 1977
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.31.12_785