Solid/Liquid Ratio

Leaching Efficiency, %

Al^*

Mn

Zn

Cu

Fe

1/ 5

21.5

80.2

77.6

79.4

8.2

1/10

31.2

83.4

85.2

86.2

11.4

1/15

36.7

98.2

94.1

92.1

14.7

1/20

56.8

98.8

95.5

94.2

16.8