Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Robisnéa A. Ribeiro"'
Publikováno v:
Química Nova, Vol 38, Iss 2, Pp 221-226 (2015)
Bleached eucalypt kraft pulps are widely used in print and writing (P&W) and tissue paper manufacture. Among the quality requirements of pulp for these papers, xylan content has been controversial. The objective of this study was to evaluate the infl
Externí odkaz:
https://doaj.org/article/73666382490d40bbb8c1a82e32439622
Autor:
Robisnéa A. Ribeiro, Fernando J. B. Gomes, José N. Floriani, Renato A. P. Damásio, Iara F. Demuner, Jorge L. Colodette
Publikováno v:
Química Nova, Vol 37, Iss 10, Pp 1646-1649 (2014)
It is well known that pH is an important parameter for controlling the eucalyptus pulp bleaching when using the final chlorine dioxide stage, since it affects the effectiveness of the process. Recommendations found in the literature for operating are
Externí odkaz:
https://doaj.org/article/889616f9bfbe4f068e3dd1feee882ed5
Autor:
Robisnéa A. Ribeiro, Sílvio Vaz Júnior, Jorge Luiz Colodette, Hasan Jameel, Hou-min Chang, Xiao Jiang, Robert H. Narron
Publikováno v:
ACS Sustainable Chemistry & Engineering. 7:10274-10282
Chips from E. urophylla x E. grandis hybrid were subjected to kraft cooking using two different approaches: low and high residual effective alkali. The lignin remaining in the pulps were analyzed f...
Publikováno v:
CERNE, Volume: 24, Issue: 4, Pages: 408-419, Published: DEC 2018
CERNE v.24 n.4 2018
Cerne
Universidade Federal de Lavras (UFLA)
instacron:UFLA
CERNE v.24 n.4 2018
Cerne
Universidade Federal de Lavras (UFLA)
instacron:UFLA
The impact of residual effective alkali (REA) and pulp delignification degree on Eucalyptus kraft pulp yield and chemistry was investigated. In this study four types of eucalypt clones were evaluated. The eucalypt woods were cooked to kappa numbers o
Publikováno v:
Cellulose. 21:607-614
Currently, bleached eucalypt pulps are largely used for printing and writing (P&W) and sanitary (tissue) paper grades. Among the many pulp quality requirements for P&W and tissue paper production the xylan content is one of the most significant. For
Publikováno v:
Química Nova, Volume: 38, Issue: 2, Pages: 221-226, Published: FEB 2015
Bleached eucalypt kraft pulps are widely used in print and writing (P&W) and tissue paper manufacture. Among the quality requirements of pulp for these papers, xylan content has been controversial. The objective of this study was to evaluate the infl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de42d283f374abaf6268e9617902c505
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422015000200221&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422015000200221&lng=en&tlng=en
Autor:
Iara Fontes Demuner, Jorge Luiz Colodette, José N. Floriani, Fernando José Borges Gomes, Robisnéa A. Ribeiro, Renato Augusto Pereira Damásio
Publikováno v:
Química Nova, Volume: 37, Issue: 10, Pages: 1646-1649, Published: 2014
LOCUS Repositório Institucional da UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV
Química Nova, Vol 37, Iss 10, Pp 1646-1649 (2014)
Química Nova v.37 n.10 2014
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
LOCUS Repositório Institucional da UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV
Química Nova, Vol 37, Iss 10, Pp 1646-1649 (2014)
Química Nova v.37 n.10 2014
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
O artigo não contém o resumo em português. It is well known that pH is an important parameter for controlling the eucalyptus pulp bleaching when using the final chlorine dioxide stage, since it affects the effectiveness of the process. Recommendat
Autor:
Marcelo Moreira da Costa, Robisnéa Adriana Ribeiro, Thalita Mendonça de Resende, Julia de Cristo Figueiredo
Publikováno v:
Floresta e Ambiente, Vol 29, Iss 4 (2022)
Abstract Iron ore pellets are raw materials used by the iron and steel industries. In these applications, flotation process has been used for increasing the iron content. In this process, starch is normally used as a depressant and amine as a collect
Externí odkaz:
https://doaj.org/article/0bfb16208e6c41b2b7c788cb11c58f22