Extraction of Zinc and Manganese from Alkaline and Zinc-Carbon Spent Batteries by Citric-Sulphuric Acid Solution

Table 3

List of tests of the second leaching campaign.

Test; No.	H2SO4 (M)	Citric acid (M)	Pulp density (%)	T (∘C)
1	1	0.075	15	40
2	2	0.075	15	40
3	1	0.225	15	40
4	2	0.225	15	40
5	1	0.075	25	40
6	2	0.075	25	40
7	1	0.225	25	40
8	2	0.225	25	40
9	1	0.075	15	60
10	2	0.075	15	60
11	1	0.225	15	60
12	2	0.225	15	60
13	1	0.075	25	60
14	2	0.075	25	60
15	1	0.225	25	60
16	2	0.225	25	60
17	0.5	0.150	20	50
18	2.5	0.150	20	50
19	1.5	0.000	20	50
20	1.5	0.300	20	50
21	1.5	0.150	10	50
22	1.5	0.150	30	50
23	1.5	0.150	20	30
24	1.5	0.150	20	70
25	1.5	0.150	20	50
26	1.5	0.150	20	50
27	1.5	0.150	20	50
28	1.5	0.150	20	50