Results 31 to 40 of about 15,534 (146)

PULP AND PAPER PROPERTIES OF EUCALYPTUS MICROTHECA GROWN IN SOUTHERN REGION OF IRAN [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2001
In this study, anatomical, physical, pulping and paper making properties of Eucalyptus microtheca grown in Farse province is investigated. Eight trees were sampled for this study.
Abbas Fakhryan roghani   +2 more
doaj   +1 more source

PROCESS FOR THE PRODUCTION OF DISSOLVING PULP FROM TREMA ORIENTALIS (NALITA) BY PREHYDROLYSIS KRAFT AND SODA-ETHYLENEDIAMINE (EDA) PROCESS

open access: yesBioResources, 2008
This paper presents a preliminary study for the production of dissolving pulp from Trema orientalis (Nalita). Water prehydrolysis kraft and soda-ethylenediamine (EDA) pulping for the production of dissolving pulp from T.
M. A. Quaiyyum   +3 more
doaj  

Comparison on the characteristics of Salix nigra Kraft and Soda pulp and paper [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2014
In this study pulp and hand sheets paper characteristics of Salix nigra wood kraft and soda pulp and paper were investigated. Average density of dry and bulk density wood were determined 0.35 and 150 kg/m3 and average fiber dimension consist of fiber ...
Lila Karami motaghi   +2 more
doaj   +1 more source

Bleaching of radiata pine Kraft pulp with the EnZone process

open access: yesJournal of Biotechnology, 1995
Abstract Oxygen delignified Kraft pulps from radiata pine were treated with xylanase in the presence of a quelating agent prior to their chemical bleaching with the sequences WZEOPP, EPWZP and EOPWZP. Enzymes tested included Cartazyme from Sandoz, Ecopulp from Alko-ICI, Irgazyme 40 from Ciba-Genencor and Pulpzyme HB from Novo Nordisk.
VICUÑA-ERRAZURIZ, JOSE   +2 more
openaire   +4 more sources

Effect of Integrating Xylan Extraction from E. grandis into the Kraft Pulping Process on Pulp Yield and Chemical Balance

open access: yesBioResources, 2016
Kraft mills have the potential to pre-extract hemicellulose from wood as another value added product. The impacts of pre-extracting xylan on pulp and handsheet properties, sodium and sulfur balances, and chemical make-ups in the kraft pulping process of ...
Andre J. Joubert   +2 more
doaj   +1 more source

Utilization of sodium borohydride (NaBH4) in kraft pulping process.

open access: yesJournal of environmental biology, 2009
Aim of this study is to investigate the effect of adding sodium borohydride (NaBH4) in kraft pulping. First of all, six kraft cooks were carried out for varying active alkali and sulfidity. Then, kraft methods for K1 and K6 cooks were modified by adding 1, 2 and 3% NaBH4.
İstek, Abdullah, Gonteki, Erdem
openaire   +4 more sources

Effects of a Chitosan Coating Layer on the Surface Properties and Barrier Properties of Kraft Paper

open access: yesBioResources, 2016
Biodegradable chitosan can be applied as a coating on the surface of kraft paper in order to improve its barrier properties against water vapor and air.
Shanhui Wang, Yi Jing
doaj   +1 more source

Techno-Economic Analysis of the Optimum Softwood Lignin Content for the Production of Bioethanol in a Repurposed Kraft Mill

open access: yesBioResources, 2014
Kraft pulping is one possible pretreatment for softwood to economically produce bioethanol. This work evaluates the techno-economic potential of using the kraft process for producing bioethanol from softwoods in a repurposed or co-located kraft mill ...
Shufang Wu   +3 more
doaj   +1 more source

Dissolving Pulp (alpha-cellulose) from Corn Stalk by Kraft Process [PDF]

open access: yesIranian Journal of Chemical Engineering, 2008
Corn stalk can be used as an alternative non-wood raw material to produce cellulosic dissolving grade pulp. In this work, the potential of corn stalk in the production of dissolving pulp (alpha-cellulose) was investigated.
doaj  

STUDIES ON HIBISCUS CANNABINUS, HIBISCUS SABDARIFFA, AND CANNABINUS SATIVA PULP TO BE A SUBSTITUTE FOR SOFTWOOD PULP- PART 1: AS-AQ DELIGNIFICATION PROCESS

open access: yesBioResources, 2010
Hibiscus cannabinus, Hibiscus sabdariffa, and Cannabinus sativa, which are renewable non-woody fiber resources having characteristics similar to that of softwood (bast fibers), when used together with hardwood (core fibers), gave higher pulp yield with ...
Dharm Dutt, J. S. Upadhyaya, C. H. Tyagi
doaj  

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