因素 | 水平 | |||
−1 | −0.3 | 0.3 | 1 | |
温度A/(℃) | 90 | 100 | 110 | 120 |
硫酸浓度B/(mol∙L−1) | 8 | 10 | 12 | 14 |
酸矿比C/(mL:g) | 1.0 | 1.5 | 2.0 | 2.5 |
时间D/(h) | 2 | 3 | 4 | 5 |