CARBON ELECTRODE, AND METHOD AND APPARATUS FOR THE ELECTROLYSIS OF A HYDROGEN FLUORIDE-CONTAINING MOLTEN SALT BY THE USE OF THE CARBON ELECTRODE

摘要

A carbon electrode is disclosed comprising a porouscarbon block and having a flexural strength of at least 50MPa and exhibiting, on a linear sweep voltammogram obtainedby subjecting the carbon electrode to potential sweep inconcentrated sulfuric acid at 25 C, a peak having a maxi-mum current density at a potential of at least 1.2 V. Thiscarbon electrode is substantially free from the danger ofdestruction and the danger of local breakage and partialcoming-off and can advantageously be used as an anode notonly for stably conducting the electrolysis of an HF-con-taining molten salt but also for producing a desired elec-trolysis product with high purity.