نتایج جستجو برای: soda pulping

تعداد نتایج: 4835  

Journal: :Bioresources 2021

Utilization of lignin phenol glyoxal (LPG) resins was studied as a potential alternative for formaldehyde (PF) resins. Lignin extracted by alkaline pulping processes (kraft and soda) from date palm fronds (DPF) used an in LPG The isolated samples were characterized using complementary analyses that included Fourier transform infrared (FTIR) spectroscopy, 13C nuclear magnetic resonance (NMR) the...

2017
Kasthurirangan Gopalakrishnan Halil Ceylan Sunghwan Kim

Lignin is considered as nature's most abundant aromatic polymer co-generated during papermaking and biomass fractionation. There are different types of lignins depending on the source (hardwood, softwood, annual crops, etc.) and recovery process. Recently, an emerging class of lignin products, namely sulphur-free lignins, from biomass conversion processes, solvent pulping and soda pulping, have...

Journal: :Walailak Journal of Science and Technology 2021

This study aims to utilize the pruned branches of Citrus limon in pulping with alkaline methods and determine suitability guar gum improve strength properties pulps limitations cutting trees for environmental issues utilization lemon as horticultural residues. These branches’ physical exhibited high medium density very low percentages bark wood ratio. The whole chemical components these raw mat...

2010
Luis Jiménez Alejandro Rodríguez

The combined production of the most abundant agricultural residues in Spain (viz. cereal straw, sunflower stalks, vine shoots, cotton stalks, olive, orange and peach tree prunings, and horticultural and related residues) amounts to over 50 million tons per year, more than 20% of which is generated by Andalusia alone. Agricultural residues must be disposed of for various reasons including the fa...

Journal: :Research and analysis journal 2022

This study on Evaluation of Discharged Untreated Wastewater from Pulping and Bleaching operations in a Bamboo Based tissue Paper Making Plant Nigeria was conducted mainly to evaluate the pollutant loads present wastewater produced during paper making progression. The samples were obtained examined find out pollutants they contain by checking availability some physicochemical parameters using st...

Journal: :جنگل و فرآورده های چوب 0
علیرضا سوخته سرائی دانشگاه تهران سحاب حجازی دانشگاه تهران- دکترا لعیا جمالی راد دانشگاه گنبد کاووس محمد احمدی دانشگاه تهران سید بهنام حسینی دانشگاه تهران

in this study , the physical and mechanical properties of polypropylene composites reinforced with bagasse alkaline-sulfite-anthraquinone, soda-anthraqouinone, monoethanolamine-anthraquinone chemical pulps and mechanical pulp (cmp) known as pulp-plastic compostes (ppc) were investigated and the results were compared among ppcs and with polypropylene composites reinforced with bagasse flour know...

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