Results 11 to 20 of about 119,353 (201)
Anti-scaling agents in kraft pulping
BioResources, 2007 Scale formation in the digester during kraft pulping represents a great problem in pulp mills. Scaling reduces pulping control and efficiency, increasing energy costs and leading to cleaning breakdowns, with subsequent losses in productivity.
Felissia, F. E. +3 more
doaj +1 more source
KRAFT AND MODIFIED KRAFT PULPING OF BAMBOO (PHYLLOSTACHYS BAMBUSOIDES) [PDF]
Drewno. Prace Naukowe, Doniesienia, Komunikaty = Wood. Research Papers, Reports, Announcements, 2017 Delignification of bamboo (Phyllostachys bambusoides) grown in the Eastern Black Sea region of Turkey was carried out by kraft, kraft-anthraquinone (AQ) and kraft-sodium borohydride (NaBH4) pulping under a variety of conditions to determine the effect of AQ, NaBH4 and cooking parameters on pulp and paper properties such as yield, kappa number ...
Deniz, İlhan +3 more
openaire +3 more sources
On the structure of lignin in kraft pulping
, 2004 Lignin present in the residual delignification phase is difficult to dissolve and any further pulping leads to an increased loss of pulp strength and yield. In this work, a radical coupling mechanism during kraft pulping is suggested to contribute to the
Majtnerova, Andrea, +1 more
core +8 more sources
BioResources, 2014 In this work, kraft pulping was carried out on moso bamboo residues as a pretreatment and its impact on the chemical compositions and the digestibility of the sample was investigated.
Caoxing Huang +6 more
doaj +1 more source
Investigation lignin dissolution at pulping process of wheat straw [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2010 The lignin dissolution in Kraft pulping for wheat straw was studied. Kraft pulping was carried out under the conditions: chemical charge of 18% (as NaOH, based on o.d. bagasse), sulfidity of 25% and liquor to wheat straw ratio of 10:1.
Jalil Roshanasan +3 more
doaj +1 more source
The Limits of Delignification in Kraft Cooking
BioResources, 2017 The perspective of the article is to explore kraft cooking at the limits of delignification, i.e. what degree of delignification is needed to obtain fibre liberation and what is the maximum degree of delignification possible in the kraft pulping stage ...
Elisabet Brännvall
doaj +1 more source
Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge [PDF]
BioResources, 2012 The objective of this study was to determine the processing conditions for obtaining improved pulp properties from the kraft pulping process with an alkali pre-extraction stage.
Kyujeong Sim +4 more
doaj
Replacement of softwood kraft pulp with ECF-bleached bamboo kraft pulp in fine paper
BioResources, 2010 Non-wood fibers such as bamboo and wheat straw have been playing important roles in the pulp and paper industry in China. In this study an ECF-bleached bamboo kraft pulp was compared with a bleached softwood kraft pulp (NBSK) as the reinforcement pulp in fine paper production.
Guanglei Zhao +4 more
openaire +2 more sources
Impregnation, vapor phase and methanol as means of intensifying the softwood kraft pulping process [PDF]
, 2006 The objective of the research was to find ways to shorten the cooking time, i.e. intensify the kraft pulping process. The reason for undertaking such a study lies in the long standing trend of ever increasing reactor size in the kraft pulping industry ...
Enqvist, Eric
core +1 more source
BioResources, 2014 The production of high-yield pulp in China has increased significantly in recent years. The well-known advantages of this type of pulp include low production cost, high opacity, and good paper formation.
Yanhong Gao, Jing Shen, Qun Li
doaj +1 more source