READ THIS See the recoveries !

http://www.excelsiormining.com/index.php/news/news-2013/392-metallurgy-tests-return-favourable-results-for-in-situ-recovery-at-gunnison

 

Column

Head Grade1 %Cu

Flow rate2, lph/m2

Acid content3, gpl acid

Days leached4

Recovery, %

Acid
Consumption5
lbs/lbs

Cu total

Cu acid soluble

Cu acid soluble

9

0.31

0.23

22

15

61

95

19

10

0.33

0.26

37

10

49

85

12.6

11

0.28

0.21

22

10

61

87

17.3

12

0.29

0.21

22

5

61

82

9.7

13

0.28

0.20

11

5

99

92

12.6