838
H. B. Wang et al.
d=5.9571
d=5.8165
d=5.1278
d=4.8761
d=4.2792
d=3.6627
d=3.3417
d=3.2225
d=3.0931
d=2.9801
d=2.8824
d=2.7012
d=2.5447
d=2.4316
d=2.3700
d=2.3076
d=2.1084
d=2.0334
d=1.9844
d=1.8308
d=1.7879
d=1.7441
d=1.7203
d=1.6247
d=1.5448
d=1.5186
d=1.4887
d=1.3453
d=1.2523
0
500
1000
1500
2000
2500
Intensity(Counts)
13-0162> Mn3O4 - Manganese Oxide
22-0827> Jarosite - KFe3(SO4)2(OH)6
46-1045> Quartz - SiO2
33-0664> Hematite - Fe2O3
10
20
30
40
50
60
70
80
90
Theta(°)
[TVZ A20160325.raw]
Fig. 1 XRD pattern of jarosite residue
410.38°C
601.26°C
15.03%
24.78%
3.296%
Residue:
54.04%
(1.276mg)
-10
-5
0
5
10
Heat Flow (W/g)
50
60
70
80
90
100
Weight (%)
0
200
400
600
800
1000
Temperature (°C)
Sample: A
Exo Up
Universal V4.5A TA Instruments
Fig. 2 TG–DTA of the jarosite residue