Chemical and thermal decomposition of ammonium sulfate to ammonia and sulfuric acid.

摘要

A method is described for manufacturing ammonia and sulphuric acid by decomposition of ammonium sulphate by a chemical and thermal handling process. The method concerns mixing of ammonium sulphate with concentrated sulphuric acid, where the mixture is heated to a temperature above 235 °C, whereby ammonium sulphate is melted, and thereafter by heating the mixture to above 280 °C but below the boiling point of concentrated sulphuric acid. It is hereby achieved to decompose ammonium sulphate into ammonia gas and sulphuric acid liquid simultaneously, where the produced sulphuric acid during the reaction time is mixed ideally with the concentrated sulphuric acid from the initial basis mixture.