Results 21 to 30 of about 35,996 (301)
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
doaj +1 more source
Assessment of Q(OP)D(PO) bleachability of softwood kraft pulp
, 2021 Bleachability is evaluated as how easily a pulp sample is bleached and it depends on the structure of residual lignin and carbohydrates. Also, the bleachability varies depending on the bleaching sequence.
Starrsjö, Sara, +4 more
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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
doaj
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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High strength paper from high yield pulps by means of hot-pressing
, 2020 The hypothesis is that it should be possible to modify papermaking conditions in line with the softening properties of high yield pulp fibres and achieve similar strength properties to conventional chemical pulp based paper. We therefore investigated the
Joelsson, Tove +11 more
core +1 more source
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
openaire +2 more sources
Enhancement of eucalypt pulp yield through extended impregnation cooking
, 2018 The improvement caused by eucalypt chip impregnation on kraft pulping performance was assessed for terminating the cook at kappa in the range of 15-27 and at controlled residual effective alkali (REA) of 6-8 g/L NaOH.
Fernando José Borges Gomes +7 more
core +1 more source
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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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
doaj +1 more source
Drvna Industrija, 2021 In this study, hand sheets were made from pulp produced by the Kraft method using avocado wood. The raw materials were supplied by a fruit orchard and consisted of avocado (Persea americana Mill.) trees that had completed their useful life and were cut ...
Gülşah Altunışık Bülbül +1 more
doaj +1 more source