Process for the production of cellulose or cellulose containing material having acid properties
GB765673A
Process for the purification of gases containing hydrogen sulphide
GB521362A
Process and apparatus for the concentration of sulphuric acid
US2213847A
Apparatus for the concentration of sulphuric acid
GB508993A
Boiler for the boiling and evaporation of liquids
GB515429A
Improved treatment of waste acids containing nitric acid
GB512872A
Improved manufacture of nitrates of alkalies, alkaline earths and ammonia
US2241613A
Manufacture of nitrates
GB495793A
Improvements in or relating to the preparation and treatment of calcium saccharate solutions
GB495328A
Improved manufacture of calcium nitrate from ammoniacal gases
US2136994A
Manufacture of calcium nitrate from ammoniacal gases
US2147988A
Production of alkali metal nitrates
GB452628A
Improvements in or relating to the manufacture of nitrates
GB365949A
Improvements in and relating to the denitration of acid which contains nitro-bodies dissolved therein
US1784074A
Apparatus for the production of ammonia-air mixtures
GB292830A
Method and apparatus for the production of ammonia-air mixtures
GB279511A
Improvements in or relating to the combustion of ammonia
GB188868A
An improved method of transforming into sulphates, by the action of nitric acid, such metals and alloys as are insoluble or only gradually soluble in sulphuric acid
GB188865A
An improved method of extracting metals from ores with nitric acid
