Table 1 KNR Process Flow Descriptions in Figure 1

(2) to (3)

Ground matte lifted to roasters @ 25 m elevation using bucket elevators (144 t/day)^a

(3) to (3)

Cooled calcine to air classification in closed circuit regrind @ 35 m elevation (216 t/day)

(3) to (6)

Calcine to copper leach (205 t/day)

(6) to (5)

Residue fine fraction to anode smelting (97 t/day)

(5) to (9)^b

Anodes to Ni electrorefining

(6) to (4)

Residue coarse fraction to Mond reducers before 1953 (hydrogen reduction after) (46 t/day)

(4) to (10)

Reduced Cu leach residue to copper cementation (38 t/day)

(10) to (3)

Cement Cu (17 t/day) and dried cement Cu slimes (23 t/day) to roasters^c

(10) to/from (11)^d

Cement Cu slimes to drying (40 t/day) before transfer to roasters^c

(10) to (15)

Crude Cobaltic Hydroxide to Cobalt refinery