Results 21 to 30 of about 700 (208)
BioResources, 2015 This study outlines the results of a biobleaching study of acacia (A. mangium) and eucalyptus (E. globulus) hardwood kraft pulps with commercial xylanase (Optimase CX 72 L).
Avdhesh Kumar Gangwar +2 more
doaj +1 more source
Trace Elements Content of Mangium Pulp throughout ECF Bleaching Stages as Measured by ICP [PDF]
, 2017 The fate of metals in pulp of the five years old mangium wood (Acacia mangium Wild) during bleaching process was investigated. The wood was divided into tree division, i.e. bottom, middle and upper divisions.
Wistara, Nyoman, Nurmala, Devi
core +1 more source
Structural modifications of residual lignins from sisal and flax pulps during soda-AQ pulping and TCF/ECF bleaching [PDF]
, 2013 We have studied the structural modifications of lignins from sisal and flax during their soda-anthraquinone (AQ) pulping and subsequent totally chlorine-free (TCF) and elementary chlorine-free (ECF) bleaching.
Marques, Gisela +5 more
core +1 more source
BLEACHING EUCALYPTUS PULPS WITH SHORT SEQUENCES
Ciência Florestal, 2011 Eucalyptus spp kraft pulp, due to its high content of hexenuronic acids, is quite easy to bleach. Therefore, investigations have been made attempting to decrease the number of stages in the bleaching process in order to minimize capital costs. This study
Flaviana Reis Milagres +3 more
doaj +1 more source
Partial circuit closure of filtrate in an ECF bleaching plant [PDF]
Nordic Pulp & Paper Research Journal, 2020 Abstract The bleaching sector of the wood pulp industry is its largest effluent generator. The aim of this study was to reuse the bleaching filtrate in order to reduce water consumption. The experiment was conducted by simulating the D0(EP)D1 bleaching sequence and recirculating different amounts of filtrate from the oxidation stage to ...
Leonard de Almeida Batista +5 more
openaire +1 more source
Evaluation of Eucalyptus KRAFT-AQ ECF and TCF pulps [PDF]
, 2019 Devido à descoberta de componentes tóxicos nos efluentes de indústria de celulose provenientes do cloro, utilizado na etapa de branqueamento de polpa química, grande pressão ambiental começou a atuar sobre o setor.
Gomes, Isabel Menezes de Bulhões
core +1 more source
A STUDY OF THE PHYSICO-MECHANICAL PROPERTIES IN SHORT BLEACHING SEQUENCES
Revista Árvore, 2018 The kraft pulp of Eucalyptus spp. is relatively easy to be bleached. Therefore, studies have been carried out to reduce the number of stages of bleaching in the plant and minimize process costs.
Ana Paula Almeida Ferraz +1 more
doaj +1 more source
A Study on the Possibility of Extraction, Identification and Removal of Metallic Ions and Resins in Bleached Bagass Pulp by ECF Stages [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2015 This study and it aim was accomplished on extraction, identification and removal of metallic ions and resins in bleached Bagass pulp by ECF stages. For this purpose, the samples were randomly selected from soda unbleached pulp of Pars mill.
Ramin Veisi, Iman Khajeh ali
doaj +1 more source
Tertiary Amines in Catalytic Pulp Bleaching [PDF]
, 2019 The motif of the current study arises from the importance of the paper in Finland as one of the core industries. The latest released statistics reported by the Confederation of European Paper Industries (CEPI) confirms that Finland, by producing 28.5% of
Afsahi, Ghazaleh
core +1 more source
Química Nova, 2009 This study investigated the impact of pulp hexenuronic acids (HexAs) content on pulping yield by changing cooking reaction temperature. The bleachability of pulps containing variable amounts of HexAs was also investigated.
Gustavo Ventorim +3 more
doaj +1 more source