Treatment of refining slag

February 21, 2024

Refining slag is a by-product of crude tin fire refining, including slag, carbon residue, sulfur residue and aluminum residue. B is eluted tin slag were heat output resolution residues containing iron, high arsenic, arsenic components near the high hard head; carbon residue is added crude tin melt sawdust condensate dross removal of arsenic, tin and arsenic mainly comprising; sulfur the crude residue is vulcanized other tin melt dross copper, copper is high; aluminum dross is added aluminum dross removal of arsenic, antimony, tin-containing high.
Examples of such slag components are shown in the table. 1 . The carbon residue and aluminum slag in the table are combined. table 2 It is a component of carbon residue and aluminum slag.
table 1 The composition of the tin smelting fire refining slag /%
Slag name
Sn
Pb
As
Sb
Cu
Fe
Bi
S
Slag
Pot residue ¹
Carbon aluminum slag
Sulfur residue
25~38
68~75
68~75
52~64
3~5
10~15
0.5~10
5~10
15~20
1~5
2~15
1~2
0.01~0.03
0.03~0.05
0.02~6.0
0.02~0.09
0.2~0.5
0.2~0.4
0.03~2.0
5~20
30~40
6.5~5.0
0.5~3.0
0.2~1.0
0.02~0.03
0.08~0.2
0.1~0.3
8~10
1 pot slag is the scum produced by condensate when the crude tin melt is initially cooled (no wood chips are added).
Table 2 Â Â Composition of carbon residue and aluminum residue
Slag name
Sn
Pb
As
Sb
Cu
Fe
Al
Cinder
Aluminum slag
60~70
70~80
5~8
4~20
3~4.5
0.027
2~4
0.2~0.4
0.035
1~9
0.06~0.07
5~8
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