Improvements in process for the treatment of silicates with acids in order to obtaintheir soluble salts
GB401567A
Improvements in process for obtaining alkaline hydrates from silicates
US1976564A
Process for the treatment of silicates with acids in order to obtain their soluble salts
GB342617A
Process of extracting potash and alumina from leucite
GB339028A
Process for eliminating the silica in the treatment of natural silicates with acids for the purpose of rendering soluble some of their constituents
GB309957A
Method of treating leucitic rocks with oxides of nitrogen
US1863986A
Process for the treatment of leucitic rocks with nitrous vapors in a continuous cycle
US1620212A
Process for the treatment of leucite and other sodium and potassium silicates with lime for the purpose of extracting potassium or sodium and aluminum values
GB226819A
Process of treating leucite and other potassium and sodium silicates with lime, for recovering potassium or sodium aluminates
GB195084A
Improved method of treating leucite or other sodium-potassium silicates, for recovering potassium, sodium and aluminium compounds
GB164335A
Improvements in the ammonia-soda process
GB156547A
Process for the extraction of potash from leucite or leucitic rocks in general
US1417831A
Process for obtaining in soluble state some of the constituents of complex rocks
