PT75891A
(en )
1982-12-01
Process for metal sulphide extraction
GB2094863B
(en )
1984-08-30
Reservoir-tailored co2-aided oil recovery process
DE3168979D1
(en )
1985-03-28
Process for the continuous recovery of acetonitrile
DE3267325D1
(en )
1985-12-12
Separation process
ZA857338B
(en )
1986-05-28
Process for the recovery of silver from a residue essentially free of elemental sulphur
DE3262617D1
(en )
1985-04-25
Sulphur recovery process
PT77524A
(en )
1983-11-01
Process for recovering non-ferrous metal values from a sulphide concentrate
DE3371796D1
(en )
1987-07-02
Metal recovery process
GB2159138B
(en )
1988-08-10
A process for the flotation of ores
PT73761A
(en )
1981-11-01
Process for the recovery of a precious metal
PT75059B
(en )
1985-05-31
Process for the recovery of xantham gum by precipitation
DE3166290D1
(en )
1984-10-31
Process for the recovery of metals from their ores
DE3262759D1
(en )
1985-05-02
Sulphur recovery process
EP0062337A3
(en )
1982-12-08
Process for the recovery of valuable material
GB2095284B
(en )
1985-01-23
Coal recovery processes
ZA825628B
(en )
1983-07-27
A process for the recovery of metals
PL238865A1
(en )
1983-07-04
Apparatus for zinc recovery
GB2104797B
(en )
1985-11-13
A process for the separation of isotopes
ZM3381A1
(en )
1981-10-21
A process for the recovery of lead from a lead bearing sulfide concentrate
YU32783A
(en )
1985-12-31
Process for the production of a lead bath from a sulfide concentrate
DE3163266D1
(en )
1984-05-30
Flotation process for the continuous recovery of silver or silver compounds from solutions or dispersions
DE3276910D1
(en )
1987-09-10
Process for the selective recovery of lead from lead sulphides
ZA812367B
(en )
1982-04-28
A process for the recovery of lead from a lead-bearing sulfide concentrate
GB2159139B
(en )
1988-06-02
Process for the recovery of tin from oxide or oxide/sulphide starting materials/concentrates which contain little tin
DE3265708D1
(en )
1985-10-03
Process for recovering uranium