Advertisements
Advertisements
प्रश्न
What is 'copper matte' ?
Advertisements
उत्तर
During extraction of copper from cuprous oxide in a reverberatory furnace, cuprous oxide is mixed with silica and heated. This leads to separation of iron oxide as iron silicate (slag) and the copper obtained after this procedure is known as copper matte. It contains Cu2S and FeS. It is then put in a silica-lined converter to remove the remaining FeO and FeS present in the matte as slag (FeSiO3).
APPEARS IN
संबंधित प्रश्न
Write the names and chemical formulae of any one ore of zinc.
Purification of aluminium by electrolytic refining is carried out by
(a)Hoope process
(b)Hall process
(c)Baeyer process
(d)Serperck process
What is the role of silica in the extraction of copper?
Explain the following methods to protect metals from corrosion:
Galvanization
How will you convert the following:
[Ag(CN)2]− to Ag
Metal which is found in free state is:
Carbonate ore of iron is ____________.
The important ore of iron is:-
Extraction of zinc from zinc blende is achieved by:-
Match List I with List II.
| List - I | List - II | ||
| a. | Siderite | I. | FeCO3 |
| b. | Malachite | II. | CuCO3 · Cu(OH)2 |
| c. | Sphalerite | III. | ZnS |
| d. | Calamine | IV. | ZnCO3 |
Choose the correct answer from the option given below.
