Use of kneading and casting materials and welding consumables for components exposed to hot concentrated sulfuric acid or oleum, process for the production of sulfuric acid and method for concentrating and purifying sulfuric acid

摘要

The present invention relates to the use of materials for parts contacted by hot, concentrated sulphuric acid and oleum having a strength of from 0 to 10% by weight and also the preparation of sulphuric acid using these materials.