|
GB8407975D0
|
|
Leaching of copper dross
|
|
GB8407154D0
|
|
Dispersion of liquid in gases
|
|
GB8406897D0
|
|
Blast furnace smelting of zinc
|
|
GB8402871D0
|
|
Roasting of sulphide concentrates
|
|
GB8309172D0
|
|
Dispersion of liquids in gases
|
|
GB8308553D0
|
|
Leaching of copper dross
|
|
GB8307620D0
|
|
Blast furnace smelting of zinc
|
|
BE896014A
|
|
Oxidatively roasting mixed zinc and lead sulphide ores - by pelletising with zinc oxide and roasting in increasing temp. stages
|
|
GB2115442A
|
|
Smelting of zinc
|
|
GB2089775A
|
|
Recovery of copper from arsenical drosses
|
|
GB2109355A
|
|
Roasting of mixed sulphide ores or concentrates
|
|
GB2072315A
|
|
Charging of zinc-smelting blast furnaces
|
|
GB2036086A
|
|
Condensation of metal vapour
|
|
GB2024792A
|
|
Roasting of sulphide materials
|
|
ZA7903158B
|
|
Roasting of sulphide materials
|
|
GB2022143A
|
|
Pyrometallurgical smelting of lead and copper
|
|
GB2009903A
|
|
Blast furnace smelting of zinc
|
|
KR820001566B1
|
|
Blast furnace smelting of zinc
|
|
GB2004355A
|
|
Blast furnace smelting of zinc
|
|
ZA7804222B
|
|
Improvements in or relating to the blast furnace smelting of zinc
|
