DE3164884D1
(en )
1984-08-23
Process for the extraction of precious metals from concentrates thereof
ZA811461B
(en )
1982-04-28
Refractory metal recovery process
GB2150155B
(en )
1986-04-16
Metallurgical processes
JPS5767138A
(en )
1982-04-23
Collection of metal from ore
GB2069472B
(en )
1984-06-27
Process for recovering precious metals
ZA81571B
(en )
1982-03-31
Process for the recovery of copper and zinc values from sulphidic ore
YU41281A
(en )
1983-06-30
Process for upgrading iron containing oxide ores
ZM8183A1
(en )
1984-09-21
Process for the extraction of metal values and novel metal extractants
YU43042B
(en )
1989-02-28
Process for the reduction of iron ore into sponge iron
GB2001611B
(en )
1982-02-03
Hydrometallurgical process for the treatment of ores
DE3166290D1
(en )
1984-10-31
Process for the recovery of metals from their ores
PT73761B
(en )
1983-01-17
Process for the recovery of a precious metal
YU44364B
(en )
1990-06-30
Process for foam-flotation of sulfidic metallic ores
ZA81939B
(en )
1982-02-24
Reduction smelting process
JPS5420902A
(en )
1979-02-16
Ore gangue treating method
DE3368618D1
(en )
1987-02-05
Process for the extraction of metal values and novel metal extractants
JPS5314194A
(en )
1978-02-08
Process for separating iron from solusion
GB2068921B
(en )
1983-11-16
Precious metals recovery process
YU98181A
(en )
1983-04-30
Process for recovering metals
ZA83392B
(en )
1983-10-26
Process for the recovery of metal values from mattes
JPS57198224A
(en )
1982-12-04
Metal extraction from mineral ore by dry metallurgical process
ZA807913B
(en )
1982-01-27
Improved leaching process for metal ores
PH16021A
(en )
1983-05-30
Process for the recovery of gold from carbonaceous ores
YU169780A
(en )
1983-01-21
Process for extracting ferronickel from nickel-comprising ferrous ores of the rzhanov type
YU287881A
(en )
1983-12-31
Process for leaching copper and aresenic from the copper slag