Moderate-temperature reduction of copper chromite by hydrogen and hydrogen desorption from the surface of reduced chromite

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 2000 English Publisher:Springer Science and Business Media LLCJournal:Kinetics and Catalysis, volume 41, pages 282-286 (issn: 0023-1584, eissn: 1608-3210,

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Authors: A. V. Khasin; I. I. Simentsova; T. M. Yur’eva;

doi: 10.1007/bf02771431

Moderate-temperature reduction of copper chromite by hydrogen and hydrogen desorption from the surface of reduced chromite

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Abstract

The reduction of copper chromite CuCr2O4 by hydrogen at 300–573 K and a hydrogen pressure of 4×104-8 × 104 104 Pa and hydrogen desorption from the surface of a reduced sample are studied. The rate of copper chromite reduction becomes high at temperatures above 473 K. Hydrogen desorbs from the surface of metallic copper covering the surface of chromite during its reduction. The heat of hydrogen adsorption on the metallic copper is almost independent of the surface coverage, 70–80 kJ/mol.

Related Organizations

Boreskov Institute of Catalysis
Russian Federation
Russian Academy of Sciences
Russian Federation

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