METHOD OF HEATING SULPHURIC-ACID SOLUTION

摘要

O F T H E D I S C L O S U R E A METHOD OF HEATING SULPHURIC-ACID SOLUTION A method is provided for directly heating sulphuric-acid solution by passing electric current between electrodes immersed in said solution and by using electrodes of iron or an iron alloy so surface-passivated that the transition resistance between the electrodes and the sulphuric-acid solution is at least as great as the resistance exerted by said sulphuric-acid solution.