Run | [Oxalic: Hydrochloric] acid ratio | Acid concentration (%) | Liquid/Solid (g/L) | Temperature (˚C) | Time (h) | Fe dissolution (%) | Ti dissolution (%) |
1 | 2 | 30 | 10 | 70 | 2 | 82 | 17 |
2 | 1 | 20 | 7.5 | 115 | 3 | 61 | 7.6 |
3 | 0 | 10 | 10 | 160 | 4 | 44 | 4.5 |
4 | 1 | 20 | 7.5 | 160 | 3 | 71 | 11.5 |
5 | 2 | 10 | 10 | 160 | 2 | 81 | 12 |
6 | 2 | 30 | 5 | 70 | 4 | 90 | 8.2 |
7 | 0 | 10 | 5 | 70 | 4 | 24 | 2.1 |
8 | 1 | 20 | 7.5 | 115 | 3 | 60 | 5.5 |
9 | 1 | 20 | 7.5 | 115 | 3 | 61 | 5.3 |
10 | 2 | 10 | 10 | 70 | 4 | 78 | 11.1 |
11 | 0 | 10 | 10 | 70 | 2 | 28 | 3 |
12 | 1 | 20 | 7.5 | 70 | 3 | 55 | 4.9 |
13 | 0 | 30 | 5 | 160 | 4 | 42 | 14.5 |
14 | 1 | 20 | 7.5 | 115 | 3 | 65 | 11.3 |
15 | 0 | 30 | 5 | 70 | 2 | 26 | 11.3 |
16 | 2 | 10 | 5 | 70 | 2 | 65 | 8.2 |
17 | 0 | 20 | 7.5 | 115 | 3 | 47 | 9.4 |
18 | 2 | 30 | 5 | 160 | 2 | 77 | 16 |
19 | 0 | 30 | 10 | 70 | 4 | 40 | 19 |
20 | 1 | 20 | 5 | 115 | 3 | 55 | 6.7 |
21 | 1 | 20 | 7.5 | 115 | 2 | 50 | 7.9 |
22 | 2 | 20 | 7.5 | 115 | 3 | 77 | 10.2 |
23 | 2 | 10 | 5 | 160 | 4 | 72 | 13.5 |
24 | 1 | 20 | 7.5 | 115 | 4 | 78 | 13.7 |
25 | 2 | 30 | 10 | 160 | 4 | 95 | 39 |
26 | 1 | 20 | 7.5 | 115 | 3 | 67 | 7.8 |
27 | 1 | 10 | 7.5 | 115 | 3 | 38 | 6.8 |