A new or improved process for obtaining products from gypsum
US1790023A
Process for the transformation of gypsum
DE433352C
Device for the central supply of rock salt in mechanical sulfatoefs
GB242512A
Improved manufacture of manures
GB229334A
Improved manufacture of chlorine
DE432800C
Process for the partial or complete removal of soluble magnesium compounds from strontium compounds and for the elimination of calcium and magnesium compounds from barium compounds
DE431388C
Recovery of mercury from hair dressing
DE431643C
Process for separating chlorobarium from solutions
DE432114C
Process for the production of pure barium or strontium hydroxide
GB218998A
Improved process of dissolving minerals containing alkali and alumina
DE412413C
Process for the production of sodium sulphate
DE415470C
Process for the production of sulphate in mechanical ovens
GB227666A
Improved manufacture of barium hydroxide or strontium hydroxide
DE435094C
Utilization of the end gases from sulfuric acid concentration systems
DE409552C
Purification of hydrochloric acid
DE417410C
Process for processing alkaline earth sulphides
DE410233C
Process for the production of artificial building materials
DE414595C
Production of sulfur, thiosulfates and sulfhydrates
DE406673C
Extraction of antimony chlorine and elemental sulfur
