CH59893A
(en )
1913-06-16
Process for obtaining zinc sulphate from galvanized iron
FR452961A
(en )
1913-05-28
Process for the production of ammonium sulphate from ammonium bisulphite
CH65381A
(en )
1914-06-16
Process for obtaining iron by electrolysis of iron sulphate
CH61743A
(en )
1913-10-16
Process for recovering iron from a solution of its sulphate
CH67362A
(en )
1914-12-01
Process for obtaining copper by electrolysis of copper sulphate
CH58030A
(en )
1913-02-17
Process for obtaining pure iron from cast iron
CH67361A
(en )
1914-12-01
Process for obtaining zinc by electrolysis of zinc sulfate
CH62848A
(en )
1913-12-16
Process for the manufacture of ammonium sulfate
FR480848A
(en )
1916-09-28
Process for the production of zinc sulphate or other zinc compounds by means of zinc ores
FR463487A
(en )
1914-02-24
Process for the production of ammonium sulfate
FR461623A
(en )
1914-01-07
Process for the production of hydrogen from iron and water vapor
FR475770A
(en )
1915-06-14
Advanced process for the electrolysis of iron
FR480499A
(en )
1916-08-09
Process for the production of zinc sulphate solutions from zinciferous ores
CH76764A
(en )
1918-02-01
Process for obtaining iron by electrolysis of iron sulphate
FR474499A
(en )
1915-02-23
Process for obtaining metal sulphates
FR1070372A
(en )
1954-07-23
Process for obtaining iron oxide from iron sulphate
FR386682A
(en )
1908-06-19
Process for the manufacture of sodium sulphate
FR829020A
(en )
1938-06-08
Process for the production of easily filtered calcium carbonate during the manufacture of ammonium sulfate from calcium sulfate
FR488819A
(en )
1918-11-19
Process for the electrolytic production of iron using an alkaline electrolyte
CH55781A
(en )
1912-09-02
Process for the production of sodium by electrolysis of a molten electrolyte
FR478289A
(en )
1915-12-01
Process for making the compound of calcium sulphate and zinc sulphide
FR20794E
(en )
1919-06-14
Process for obtaining copper sulphate starting from copper sulphide
FR485667A
(en )
1918-01-29
Process for obtaining copper sulphate starting from copper sulphide
FR447909A
(en )
1913-01-18
Process for obtaining a pearly coating
FR17832E
(en )
1913-12-01
Process for obtaining a pearly coating