AT109149B
(en )
1928-03-26
Process for the extraction of iron in solid form from oxidic ores.
AT121523B
(en )
1931-02-25
Process for the extraction of metals, in particular iron, from their ores.
AT111036B
(en )
1928-10-25
Process for the direct recovery of molten low carbon pure iron from ores.
AT140194B
(en )
1935-01-10
Process for dry chlorination of sulfidic ores.
AT121535B
(en )
1931-02-25
Process for the extraction of metals from their oxides, especially low-carbon iron.
AT126976B
(en )
1932-02-25
Process for extracting volatile metals from their ores.
AT106698B
(en )
1927-06-25
Process for the extraction of practically iron-free tin from iron-containing tin ores, alloys, slags and waste.
AU2646925A
(en )
1926-12-31
Process of extracting metals from their ores
ES93752A1
(en )
1926-08-01
Improvements in methods of producing metals from iron ores and the like.
AT126973B
(en )
1932-02-25
Method and device for the extraction of metals, in particular sponge iron, by reducing ores.
AT169064B
(en )
1951-10-10
Process for the reduction of ores, in particular iron ores
AT108109B
(en )
1927-11-25
Process for the manufacture of low-sulfur cast iron.
FR629790A
(en )
1927-11-17
Improvements to processes for extracting vanadium from solutions that contain it
AT148708B
(en )
1937-02-25
Process for the extraction of precious metals.
FR619218A
(en )
1927-03-29
Process for extracting phosphoric acid from iron ores
ES81411A1
(en )
1922-08-16
Procedure to separate pyrite from hematite.
FR618784A
(en )
1927-03-18
Improvements in the processing of titaniferous ores
CH160222A
(en )
1933-02-28
Process for the production of castings from alloys.
CA256481A
(en )
1925-12-22
Method of treating iron ore
CA254320A
(en )
1925-10-06
Process for recovering metals contained in ores
AT148691B
(en )
1937-02-25
Process for the recovery of sulphurous acid from gas mixtures.
AT174368B
(en )
1953-03-25
Process for the extraction of iron oxide from iron ores
AU2647025A
(en )
1926-12-31
Process of extracting lead from its ores
CH138522A
(en )
1930-02-28
Process for deoxidizing iron or steel.
AT116457B
(en )
1930-02-25
Process to prevent scale formation and to remove scale that has already set in.