Laterite Leach Tests

ANSTO Minerals Report C1206 to Lagoon Creek Resources – Westmoreland Deposits
Exp. ID pH ORP
(mV)
TABLE 4.6
Junnagunna – Final 24 h Leach Liquor Compositions (mg/L)
Temp.
(ºC)
P80
(µm)
Al Ca Fe Fe 3+ K Mg Mn P Si
LC9 A 2.0 500 40 250 394 339 2360 1388 149 219 529 8 456
LC4 B 1.7 500 40 250 595 355 3080 1936 302 284 550 26 605
LC3 A 1.5 500 40 250 804 427 4020 2499 272 369 657 47 681
LC4 A 1.3 500 40 250 954 452 4060 2546 268 409 605 80 856
LC5 C 1.5 550 40 250 657 388 3509 2654 170 313 674 63 592
LC3 A 1.5 500 40 250 804 427 4020 2499 272 369 657 47 681
LC12 A # 1.5 500 40 250 718 406 3660 2185 182 355 1330 45 652
LC6 A 1.5 450 40 250 859 394 4070 1144 184 384 262 42 707
LC7A 1.5 500 30 250 608 382 3070 1426 147 288 492 36 508
LC3 A 1.5 500 40 250 804 427 4020 2499 272 369 657 47 681
LC10 A 1.5 500 50 250 1220 384 4970 2924 297 526 714 41 771
LC8 B* 1.5 500 40 250 768 318 4500 2845 214 317 535 16 629
LC3 A 1.5 500 40 250 804 427 4020 2499 272 369 657 47 681
LC14 B 1.5 500 40 350 830 398 4230 2750 181 393 633 30 576
LC3 A 1.5 500 40 250 804 427 4020 2499 272 369 657 47 681
LC9 C 1.5 500 40 150 767 385 3630 2179 227 353 666 36 671
LC11A 1.5 500 40 75 830 409 4360 2734 214 387 677 47 756
* addition of 1.0 g/L ferric ion
# pyrolusite as oxidant
22