Adsorção de íons dicromato nos compósitos celulose/ZrO2.nH2O preparados pelos métodos da precipitação convencional e em solução homogênea



Document title: Adsorção de íons dicromato nos compósitos celulose/ZrO2.nH2O preparados pelos métodos da precipitação convencional e em solução homogênea
Journal: Quimica nova
Database: PERIÓDICA
System number: 000313297
ISSN: 0100-4042
Authors: 1

Institutions: 1Faculdade de Engenharia Quimica de Lorena, Departamento de Engenharia Quimica, Lorena, Sao Paulo. Brasil
Year:
Season: Jun
Volumen: 29
Number: 3
Pages: 496-500
Country: Brasil
Language: Portugués
Document type: Artículo
Approach: Experimental, aplicado
English abstract This article describes the preparation and characterization of the cellulose/ hydrated zirconium oxide composites prepared by conventional precipitation (PC) and homogeneous solution precipitation (PSH) methods. The composite obtained by the PC method was prepared by using an ammonia solution as the precipitating agent, while the composite obtained by the PSH method was prepared by using urea as the precipitating agent. The adsorption of dichromate ions on the composites was studied using factorial design 2³. The variables were: initial concentration, agitation time and mass of the composite. The data obtained agree better for the composite obtained by the PC method
Disciplines: Química
Keyword: Ingeniería química,
Adsorción de iones,
Dicromato,
Soporte sólido,
Precipitación convencional,
Precipitación homogénea
Keyword: Chemistry,
Chemical engineering,
Anions adsorption,
Dichromate,
Solid support,
Conventional precipitation,
Homogeneous solution precipitation
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