Pulping Of Vetiver Grass With NH4OH-KOH-AQ Mixtures
نویسندگان
چکیده
منابع مشابه
investigation on soda and soda- aq pulping of whole kenaf
the present research has been conducted to investigate the soda and soda-anthraquiuone pulping from whole kenaf (v36). in this respect, anatomical characteristics of kenaf bast and core fibers as well as the soda and soda-aq pulp properties produced at four sodium hydroxide concentrations, namely 25, 30, 35 and 40 (g/lit), have been evaluated. the pulping results indicated that pulp yield and k...
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Activated carbon was prepared through chemical activation of lignin from a straw pulping precursor, using K2CO3 and KOH as chemical agents. To optimize the preparation method, the effect of the main process parameters (such as impregnation ratio, activation temperature and activation time) on the performance of the obtained activated carbon (expressed in terms of iodine number and yield of acti...
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Kraft-AQ pulping lignin was sequentially fractionated by organic solvent extractions and the molecular properties of each fraction were characterized by chemical degradation, GPC, UV, FT-IR, (13)C-NMR and thermal analysis. The average molecular weight and polydispersity of each lignin fraction increased with its hydrogen-bonding capacity (Hildebrand solubility parameter). In addition, the ratio...
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A biorefinery using the process of hemicellulose pre-extraction and subsequent pulping provides a promising way for the utilization of straw biomass and resolution of problems related to silicon. In this work, hemicellulose was extracted from depithed corn stover with sodium hydroxide solution before soda-AQ pulping. Components of the extracts were quantified by ion chromatography. The paramete...
متن کاملEffects of Salinity on Seedling Growth and Physiological Traits of Vetiver Grass (Vetiveria zizanioides Stapf)
Vetiver grass (Vetiveria zizanioides) is known to be survived under the diversesoil and water conditions. In order to study the effects of salinity stress on the seedlinggrowth of the desired species, a completely randomized design was conducted with 3replications. Seeds were sown in the salty-soil plots in the greenhouse. Salinity levels werespecified as 4 control ones including 20, 30 and 40 ...
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ژورنال
عنوان ژورنال: ASEAN Journal of Chemical Engineering
سال: 2012
ISSN: 2655-5409,1655-4418
DOI: 10.22146/ajche.50061