BE806665A
(en )
1974-02-15
PROCESS FOR EXTRACTING ZINC FROM SULPHIDES CONTAINING ZINC AND IRON
BE868203A
(en )
1978-10-16
PROCESS FOR THE SELECTIVE EXTRACTION OF CAFEINE FROM VEGETABLE MATERIALS
FR2641287B1
(en )
1992-10-09
PROCESS FOR EXTRACTING SCANDIUM FROM ORE
OA06316A
(en )
1981-06-30
Hydrometallurgical process for metal recovery.
BE859758A
(en )
1978-04-14
PROCESS FOR RECOVERING COPPER AND SILVER FROM ORES OR SULPHIDE CONCENTRATES
BE779556A
(en )
1972-06-16
HYDROMETALLURGIC PROCESS FOR EXTRACTING COPPER AND SULFUR FROM COPPER AND IRON SULPHIDES
OA05400A
(en )
1981-02-28
Process for extracting copper from ores or concentrates containing copper and iron.
FR2308690A1
(en )
1976-11-19
URANIUM EXTRACTION PROCESS FROM URANYL SOLUTIONS
BE878150A
(en )
1980-02-08
IMPROVEMENTS IN A PROCESS FOR EXTRACTING MATERIAL BY LEACHING
GB2005238B
(en )
1982-04-28
Process for the precipitation of iron as jarosite from iron-sulphate solutions
MA18518A1
(en )
1980-04-01
PROCESS FOR SEPARATING IRON FROM URANIUM
FR2316343A1
(en )
1977-01-28
PROCESS FOR OBTAINING METALS OR THEIR SALTS FROM ORES
BE839961A
(en )
1976-09-24
PROCESS FOR EXTRACTING COPPER FROM AQUEOUS SOLUTIONS WITH HYDROXY OXIMES
BE864884A
(en )
1978-07-03
PROCESS FOR EXTRACTING METALS FROM ORES AND MINERAL CONCENTRATES, AS WELL AS PRODUCTS OBTAINED
FR2314255A1
(en )
1977-01-07
METAL EXTRACTION PROCESS FROM LIMONIC ORES
PT66323B
(en )
1978-08-14
PROCESS FOR EXTRACTING PLANT MATERIALS
FR2338994A1
(en )
1977-08-19
STEEL PROCESSING PROCESS FROM PRE-REDUCED ORES
BE866937A
(en )
1978-11-13
PROCESS FOR EXTRACTING ZINC FROM AN ORE CONTAINING ZINC SULPHIDE
FR2304678A1
(en )
1976-10-15
NEW PROCESS FOR MAKING STEELS WITH IMPROVED MACHINABILITY FROM DIVIDED METAL
RO66558A2
(en )
1978-12-15
PROCESS FOR EXTRACTING MANGANESE FROM MANGANESE OR IRON ORES
BR7904995A
(en )
1980-04-22
COLOMBIO-TANTALO EXTRACTION PROCESS FROM PIROCHLORO ORES
FR2385802B1
(en )
1985-09-13
PROCESS FOR THE EXTRACTION OF NICKEL FROM ORES
BE891384A
(en )
1982-03-31
PROCESS FOR RECOVERING COPPER FROM ARSENICAL SLAGS
FR2451763B1
(en )
1987-03-20
PROCESS FOR EXTRACTING SOLID MATERIAL FROM A CRYSTALLIZATION SOLUTION
BE870459A
(en )
1979-03-13
ELECTROLYTICAL EXTRACTION PROCESS OF METALS FROM SULPHIDE ORES