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    THE EFFECT OF OXALIC ACID PRETREATMENT ON ALKALI PULPING PROCESS
    (Slovak Forest Products Research Inst, 2016) Üner, Birol; Akgül, Mehmet; Gücüş, Mehmet Onurhan; Demir, Serkan
    The objective of this study was to determine prehydrolysis process on kraft and soda pulping process. Optimum cooking conditions were determined by different alkali concentration and cooking period. Oxalicacid was used to hydrolyzechip before cooking. Prehydrolysis proces increased the yield and viscosity of pulp. Incontrast, mechanical properties of paper were not changed significantly. Optical properties were decreased due to lignin content.