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Dive into the research topics where María Cristina Area is active.

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Featured researches published by María Cristina Area.


Bioresource Technology | 2010

The influence of pulping and washing conditions on the properties of Eucalyptus grandis unbleached kraft pulps treated with chelants.

María Cristina Area; M.G. Carvalho; Paulo J. Ferreira; Fernando E. Felissia; Olga M. Barboza; D.I. Bengoechea

The influence of different addition points of a chelating agent and a counter-ion exchange on the properties of Eucalyptus grandis unbleached kraft pulps is studied. Seven pulps were considered: two laboratory kraft pulps with or without the inclusion of the chelant DTPMPA (diethylene triamine penta (methylene phosphonic acid)), a mill kraft pulp and four mill pulps after Ca(+2) or Na(+) counter-ion exchange followed, or not, by washing with DTPMPA addition. The laboratory pulps required lower beating energy than the industrial pulps for achieving 30 degrees SR, and the corresponding handsheets also showed better strength and optical properties, as well as a more homogeneous and smooth surface. The counter-ion exchange decreases the mechanical resistances and increases brightness. However, the effects of Ca(+2) are deeper than those of Na(+). DTPMPA added to pulping causes a decrease in calcium content whereas as a washing additive does not have a relevant impact on the mechanical and optical properties.


Journal of Renewable Materials | 2017

Alternatives of Small-Scale Biorefineries for the Integrated Production of Xylitol from Sugarcane Bagasse

Nicolás Martín Clauser; Soledad Gutiérrez; María Cristina Area; Fernando E. Felissia; María Evangelina Vallejos

Fil: Clauser, Nicolas Martin. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Nordeste. Instituto de Materiales de Misiones. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Quimicas y Naturales. Instituto de Materiales de Misiones; Argentina


Biofuel Research Journal | 2017

Second-generation bioethanol from industrial wood waste of South American species

María Evangelina Vallejos; Julia Kruyeniski; María Cristina Area

Fil: Vallejos, Maria Evangelina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Nordeste. Instituto de Materiales de Misiones. Universidad Nacional de Misiones. Facultad de Ciencias Exactas Quimicas y Naturales. Instituto de Materiales de Misiones; Argentina


Mineral Scales and Deposits#R##N#Scientific and Technological Approaches | 2015

Scaling in Alkaline Spent Pulping Liquor Evaporators

María Cristina Area; Fernando E. Felissia

This chapter discusses the fouling that occurs in evaporators used to concentrate the black liquor in kraft pulp mills. Initially, the chemical nature of black liquors and the location of the recovery process within the framework of the kraft mill are briefly described. It includes an explanation about the different types of fouling and how they evolved over time due to changes that were made in the pulping process and due to evaporation technologies. It also describes the nature of the deposits and various proposals for mitigation. Finally, a series of case studies is presented.


Maderas-ciencia Y Tecnologia | 2014

Patrones de variación de la densidad de la madera y morfometría celular de Salix babylonica para la determinación de la edad de transición entre madera juvenil y madura

Ana Clara Cobas; María Cristina Area; Silvia Monteoliva

El objetivo del trabajo fue analizar los patrones de variacion axial y radial de la densidad y morfometria celular de la madera de sauce americano y determinar la edad de transicion de madera juvenil a madura. Se muestrearon cinco arboles de 45 anos de Salix babylonica de Entre Rios, Argentina. Se tomaron muestras a tres alturas en el fuste y en 9 posiciones radiales y se determino la densidad basica y la morfometria de fibras y vasos. Los patrones de variacion radial evidenciaron un leve aumento de magnitud con la edad, mientras que la mayor variacion axial se manifesto mayoritariamente entre la base y la altura de 1,3m el fuste, presentandose diferentes tendencias de acuerdo a la variable. Dependiendo de la variable analizada, la edad de transicion entre madera juvenil y madura fue de 5 a 10 anos o de 10 a 15 anos. La longitud y ancho de fibras y el diametro de vasos fueron los primeros parametros en madurar. Los valores promedio de las variables de la madera juvenil y madura no mostraron diferencias importantes entre los lenos, por lo tanto podrian considerarse como homogeneos desde el punto de vista anatomico y de densidad.


Bioresources | 2011

PAPER AGING AND DEGRADATION: RECENT FINDINGS AND RESEARCH METHODS

María Cristina Area; Hervé Cheradame


Bioresources | 2011

CHEMICAL AND PHYSICO-CHEMICAL CHARACTERIZATION OF LIGNINS OBTAINED FROM ETHANOL-WATER FRACTIONATION OF BAGASSE

María Evangelina Vallejos; Fernando E. Felissia; Antonio Aprigio da Silva Curvelo; Márcia D. Zambon; Luis Enrique Ramos; María Cristina Area


Journal of Cleaner Production | 2017

Lignocellulosics as sustainable resources for production of bioplastics – A review

Malin Brodin; María Evangelina Vallejos; Mihaela Tanase Opedal; María Cristina Area; Gary Chinga-Carrasco


American Journal of Environmental Engineering | 2014

Advanced Oxidation Processes for Wastewater Treatment in the Pulp and Paper Industry: A Review

Laura Covinich; Rosa Fenoglio; María Cristina Area


Chemical Engineering Research & Design | 2016

Small-sized biorefineries as strategy to add value to sugarcane bagasse

Nicolás Martín Clauser; Soledad Gutiérrez; María Cristina Area; Fernando E. Felissia; María Evangelina Vallejos

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Fernando E. Felissia

National University of Misiones

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Nanci Vanesa Ehman

National Scientific and Technical Research Council

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Olga M. Barboza

National University of Misiones

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Nicolás Martín Clauser

National University of Misiones

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Silvia Monteoliva

National University of La Plata

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Julieta B. Benitez

National University of Misiones

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Laura Covinich

National Scientific and Technical Research Council

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