Exercise 4-2 Two-stage dense-medium circuit
Stage 1 sg = 2.75									Recovery of Magnesite			Grade of silica
Stage 2 sg
2.7	70.31	162.2	30.23	70.3	26.56	4.47	36.93	3.3	79.17	92.21	36.93	3.3
2.8	62.53	131.9	32.15	62.53	15.01	2.84	28.72	2.88	71.97	94.26	28.72	2.88
2.9	43.88	52.3	45.59	43.88	8.56	2.31	19.16	2.74	50.89	94.96	19.16	2.74
Stage 1 sg = 2.8
Stage 2 sg
2.7	60.12	139.6	30.1	60.12	16.2	3.19	28.43	2.97	68.9	93.85	28.43	2.97
2.8	49	103.9	32.03	48.99	9.87	2.39	21.55	2.76	56.77	94.88	21.55	2.76
2.9	21.66	34.3	38.65	21.66	4.01	2.19	9.34	2.71	25.15	95.1	9.34	2.71
3	5.59	11.8	32.05	5.59	1.14	2.41	2.48	2.78	6.47	94.79	2.48	2.78