Results 11 to 20 of about 26,588 (265)
Increased pulp yield by prolonged impregnation in softwood kraft pulping
Nordic Pulp & Paper Research Journal, 2017 The effect on kraft cooking proceeded by an impregnation stage performed at 130 degrees C for 30 min was compared to kraft cooking following prolonged impregnation at 105 degrees C for 60-120 min. The alkali consumed during impregnation varied depending on the temperature and time of the impregnation stage.
Daniel Tavast, Elisabet Brännvall
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Improvement of the properties of Poplar chemi-mechanical newsprint through controlling process parameters [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2018 One of the drawbacks of utilizing non-forest fast growing species of Poplar as raw materials to produce newsprint in Mazandran Pulp and Paper Mill is fairly low bulk and opacity of produced paper at the yield of 85% (current CMP yield of the Mill).
Hossein Resalati +1 more
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The relationship of pulp yield with ethanol pulping concentrations on Acacia hybrid [PDF]
Journal of the Indian Academy of Wood Science, 2016 This study aimed at determining the total yield, screened yield, rejected yield, Kappa number and viscosity of organosolv Acacia hybrid pulp. Acacia hybrid wood chips of uniform size were used to undergo pulping in a digester with five different ethanol concentrations, 50, 60, 70, 80 and 90 % (v/v) with 1 M of sodium hydroxide as catalyst and water ...
Kang Chiang Liew, Eunice Wan Ni Chong
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A Comparison Between Alkali Peroxide and Activated Peroxide Processes in Bleaching Hardwoods Chemi-mechanical Pulp [PDF]
Iranian Journal of Wood and Paper Industries, 2013 Unbleached chemi-mechanical pulp of 85% pulp yield and produced from hornbeam, beech and populus woods respectively by 3:1:1 ratio, was used for peroxide bleaching. Two bleaching systems, alkali peroxide (conventional bleaching) and activated peroxide by
Farhad Zeyni, M.Reza Dehghani
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Journal of Natural FibersThis study investigated the proximate and chemical composition analysis of red kidney bean pseudo-stem, optimization of red kidney bean pseudo-stem and enset fiber alkaline-peroxide pulping and blended paper mechanical properties.
Abenezer Hizkeal Lemma +1 more
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Revista Brasileira de Fruticultura, 2008 A goiaba-da-costa-rica (Psidium friedrichsthalianum) é uma espécie frutífera nativa da América Central, cultivada em pomares domésticos. Visando a contribuir para o estabelecimento de técnicas de implantação e condução de plantios comerciais, foi ...
Elizabeth Rodrigues Rebouças +2 more
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Scientia Agricola, 2006 Industrial tomato is the most important vegetable crop of the Brazilian agribusiness. Few researches have evaluated the tolerance of this crop to saline stress.
Carlos Alberto Brasiliano Campos +5 more
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Agronomic yield and quality of industrial tomatoes under NPK doses [PDF]
Revista Brasileira de Engenharia Agrícola e AmbientalHigh doses of nitrogen, phosphorus and potassium in irrigated systems may lead to an increase in the productivity of industrial tomatoes, but may also alter the final quality of the fruits.
Maria N. Almeida Neta +5 more
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Kovalen: Jurnal Riset Kimia, 2021 Coconut pulp contains up to 18.2% protein which is one of the wastes from coconut oil processing. Protein from coconut pulp can be used in the manufacture of protein concentrates which are widely used in the food industry. The purpose of this research is
Ulayya Kasio +5 more
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Improvement of high yield pulps.
JAPAN TAPPI JOURNAL, 1989 A variety of chemical treatments were employed in the production of high yield pulps from softwood (spruce) and hardwoods (birch, oak) by thermo -mechanical pulping. The effects of these chemical treatments on the physical, chemical and morphological properties of pulps were investigated.Of the pretreatment chemicals investigated, neutral and bisulfite
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