Now showing items 1-10 of 255
Surface chemistry of eucalyptus wood pulp fibres: Effects of chemical pulping
(Walter De Gruyter & CoBerlinAlemanha, 2002)
Effect of accelerated carbonation on cementitious roofing tiles reinforced with lignocellulosic fibre
(ELSEVIER SCI LTD, 2010)
The present work evaluated the effects of accelerated carbonation on mechanical and physical characteristics of cementitious roofing tiles reinforced with vegetable fibre. The maximum load and toughness of the tiles have ...
Intrapulpar temperature during continuous CO2 laser irradiation in human molars: An in vitro study
To establish safety parameters, we in vitro studied the increase in intrapulpal temperature caused by the use of a cw CO2 laser. A thermistor was implanted in the inner part of the pulpal chamber of 25 human lower third ...
Activated carbon prepared from coffee pulp: potential adsorbent of organic contaminants in aqueous solution
(I W A Publishing, 2013-08)
The processing of coffee beans generates large amounts of solid and liquid residues. The solid residues (pulp, husk and parchment) represent a serious environmental problem and do not have an adequate destination. In ...
Supercritical carbonation treatment on extruded fibre-cement reinforced with vegetable fibres
(Elsevier B.V., 2015-02-01)
The objective of this research was to evaluate the effects of supercritical carbonation treatment for 2 h on the main hydrated phases of the cement matrix (calcium hydroxide and calcium silicate hydrate) and durability of ...
Hydrogen peroxide and supercritical carbon dioxide: a new bleaching stage for Eucalyptus kraft-O(2) pulps
(WALTER DE GRUYTER & CO, 2011)
Kraft pulp is currently bleached largely by the elemental chlorine free (ECF) technology with oxygen, chlorine dioxide, and hydrogen as active agents. This technology brought about significant environmental improvements ...
Evaluación de los Procesos de Lixiviación por Agitación Convencional y Carbón en Pulpa en la Hidrometalurgia del Oro
(Centro de Información Tecnológica, 2005)
Pyrolysis and combustion of pulp mill lime sludge
(Elsevier B.V., 2008-07-01)
Thermal degradation and gaseous products evolving from pyrolysis and combustion of pulp mill lime sludge were investigated using Thermogravimetric Analysis in conjunction with Fourier Transform Infrared Analysis (TG-FTIR). ...