Table 3.

Modified ABA test results

Sample	pH	NaOH (ml)	NP (kg CaCO3/t)	SO3 (%)	S (%)	AP (kg CaCO3/t)	NPP (kg CaCO3/t)
B1S	8.51	21.6	− 53.25	24.6	9.9	3.08	− 56.33
B1P	8.40	12.8	− 31.95	26.0	10.4	3.25	− 34.75
B8S	8.36	23.1	− 57.00	6.1	2.5	0.77	− 57.77
B8P	8.30	20.4	− 50.90	18.6	7.4	2.33	− 52.33
C8S	8.33	21.1	− 52.00	25.1	10.1	3.14	− 55.14
C8P	8.34	20.9	− 52.15	18.7	7.5	2.34	− 53.59