Počet záznamov: 1
Importance of the hardwood chips quality for pulp production
SYS 0087086 LBL 00000naa^^22^^^^^^^^450 005 20190401131818.4 017 70
$a 10.17423/afx.2016.58.2.08 $2 DOI 100 $a 20161107a m y0sloy0103 ba 102 $a SK 200 1-
$a Importance of the hardwood chips quality for pulp production $f Anton Geffert, Jarmila Geffertová 215 $c Obr. 320 $a Lit. 330 $a The aim of this work was to underline the importance of hardwood chips quality for pulp production under the conditions of modern displacement sulphate cooking. The speed at which the cooking chemicals come into contact with particular wooden fibres is decisive for the optimal delignification process. This speed is given by chips quality – their dimensional, chemical and moisture uniformity. Quality of the hardwood chips was evaluated by gravimetric method (amount of impregnated liquor, yeld and content of undercook) and by chemical methods (residual effective alkali content and Kappa number). The recommendations are summarized and based on obtained knowledge of optimal delignification process of non-uniform hardwood chips: · recommended thickness of well-impregnating and cooking sapwood chips is 3-4mm, · recommended thickness of hardly impregnated and cooked heartwood is 2–3mm, · constant ratio of sapwood and heartwood mixture (the recommended ratio is 4:1), · the maintenance of constant and high moisture of the chips entering into cooking replacement. The suitable combination of parameters stated above allows the production of high quality pulp from non-uniform chips. 463 -1
$1 001 sldk_un_cat*0086936 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 58, č. 2 (2016), s. 73-80 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2016 610 1-
$9 sldk_un_auth*0008664 $a tvrdé drevo $X hardwood 610 1-
$9 sldk_un_auth*h017771 $a drevné štiepky $X wood chips 610 1-
$9 sldk_un_auth*h014190 $a kvalita štiepok $X chip quality 610 1-
$9 sldk_un_auth*h008417 $a výroba buničiny $X pulp production 675 $a 630*861.0 $v 1. stred. $z slo 675 $a 630*861.1 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*p0016647 $a Geffert $b Anton $f 1955- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 701 -1
$3 sldk_un_auth*p0039105 $a Geffertová $b Jarmila $f 1956- $p TUZDFCHTD $4 070 $T Katedra chémie a chemických technológií 801 -0
$a SK $b ZV001 $c 20161107 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/08-02-16_1_0.pdf
Počet záznamov: 1