AT57735B
(en )
1913-02-25
Floating process for processing sulphidic ores.
AT69146B
(en )
1915-06-25
Device for the magnetic processing of ores.
AT43571B
(en )
1910-08-10
Process for processing refractory zinc-lead ores.
AT88426B
(en )
1922-05-10
Process for processing manganese-containing slags and ores.
DK13682C
(en )
1910-09-12
Procedure for Extraction of the Copper from Copper-Roasted Sulfur Ore While Simultaneously Ferrous Sulphate Extraction
CH37146A
(en )
1907-04-30
Conical hearth for processing ores
ES55225A1
(en )
1913-06-01
An improved process for treating and separating complex sulfurous minerals.
FR422848A
(en )
1911-03-31
Ore Processing Machine
AT74038B
(en )
1917-11-26
Process for the separation of copper, lead and zinc from sulphidic or oxidic ores.
CA127397A
(en )
1910-08-09
Ore concentration
AT46702B
(en )
1911-02-25
Process for the electrodeposition of copper.
CA103232A
(en )
1907-01-22
Method of preparing the slime of ores
GB190717364A
(en )
1908-07-29
Improved Process for Separating Parts of the Constituents of Ores from the Remainder thereof.
AT52347B
(en )
1912-02-26
Method for conveying spent grains.
AT71280B
(en )
1916-02-25
Process for mechanical digestion of grain.
CA130494A
(en )
1911-01-17
Ore smelting process
FR427234A
(en )
1911-07-29
Ore desulfurization process
CH51987A
(en )
1911-10-16
Process for the reduction of iron ores essentially containing iron oxide
FR422928A
(en )
1911-04-03
Process for roasting sulphide ores
CH50391A
(en )
1911-05-16
Holders for steels for processing metals
ES48757A1
(en )
1910-10-16
An improved process to benefit precious metal ores.
CA134271A
(en )
1911-07-11
Ore concentration
CH49776A
(en )
1911-03-16
Process for the precipitation of zinc from zinc ore
ES56430A1
(en )
1913-11-01
An improved process for the selective separation or extraction of metal sulphides.
DK17677C
(en )
1913-08-18
Method for Reprocessing Compound Radium-Containing Ores.