Pulp and paper production from Spruce wood with kraft and modified kraft methods
نویسندگان
چکیده
منابع مشابه
Bulky Paper from Chemically Crosslinked Hardwood Kraft Pulp Fibers
There is a general interest among paper and board makers to produce lighter and bulkier paper and board products. The aim of the present study was to characterize chemically crosslinked hardwood kraft fibers regarding their potential in making bulky paper and board. Crosslinking agents are molecules that contain two or more reactive ends that form inter-chain covalent bonds with cellulosic hydr...
متن کاملDissolving Pulp (alpha-cellulose) from Corn Stalk by Kraft Process
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. It was collect ed from a corn stalk farm of Kermanshah, Iran. The sequences of experimental work were: water and acid prehydrolysis at 160˚C for 30min, followed by Kraft pulp...
متن کاملKraft Pulp from Juvenile and Mature Woods of Corymbia citriodora
Kraft pulp produced from juvenile and mature wood from thirty-two-yearold Corymbia citriodora trees was evaluated. The stem was subdivided into regions of juvenile and mature wood, and then it was transformed into chips. These materials were then cooked in the Laboratory of Pulp and Paper at São Paulo State University (UNESP, Botucatu, SP, Brazil) and the physico-mechanical properties of the pu...
متن کاملModifying kraft pulping to produce a softwood pulp requiring less energy in tissue paper production
......................................................................................................... ii SAMMANFATTNING .......................................................................................... iii ACKNOWLEDGEMENT ...................................................................................... v LIST OF PAPERS .............................................................
متن کاملDesorption of Metal Ions from Kraft Pulps. Part 1. Chelation of Hardwood and Softwood Kraft Pulp with Edta
Chelation of unbleached and oxygen bleached hardwood and softwood kraft pulps with EDTA was studied. The main focus was on the desorption of magnesium, manganese, and iron due to their impact in TCF-bleaching. Desorption of other metal ions present were also studied in order to get an over-all estimation of the metal ion concentrations and their desorption during chelation. By using the concept...
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ژورنال
عنوان ژورنال: African Journal of Biotechnology
سال: 2010
ISSN: 1684-5315
DOI: 10.5897/ajb10.1906