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Chemistry > Metallurgy > Flashcards

Metallurgy Flashcards

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1
Q

Bauxite

A

Al2O3.xH2O

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2
Q

Cryolite

A

Na3AlF6

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3
Q

Kaolinite

A

[Al2(OH)4Si2O5]

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4
Q

Haematite

A

Fe2O3

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5
Q

Magnetite

A

Fe3O4

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6
Q

Siderite

A

FeCO3

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7
Q

Iron pyrite

A

FeS2

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8
Q

Copper pyrites

A

CuFeS2

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9
Q

Malachite

A

CuCO3.Cu(OH)2

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10
Q

Cuprite

A

Cu2O

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11
Q

Copper glance

A

Cu2S

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12
Q

Sphalerite

A

ZnS aka Zinc blende

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13
Q

Calamine

A

ZnCO3

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14
Q

Zincite

A

ZnO

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15
Q

Composition of ruby

A

Al2O3 + Cr (impurity)

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16
Q

Composition of sapphire

A

Al2O3 + Co (impurity)

17
Q

Froth flotation process: which ores, collectors, froth stabilisers, depressants (purpose + eg)

A

Sulphide ores
Froth is of mineral
Collectors: pine oils, fatty acids, xanthates. Enhance non wettability of mineral
Froth stabilisers: cresol, aniline. Stabilise froth
Depressants: if ZnS + PbS, use NaCN, only PbS will make froth

Chemistry (35 decks)

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