XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 3675
analysis in Table 6. The degree of dissociation of magnetite
and non-metallic minerals, as well as the type and quantity
of conjoined minerals, directly affect the formulation of the
mineral processing technology strategy. Therefore, a further
investigation into the bonding characteristics of iron min-
erals was conducted. As seen from Figure 4, the crystal par-
ticle size of the magnetite in the sample is relatively coarse.
Among them, magnetite with a size of –10 microns only
accounts for 14.36% of the observed sizing. The 75.33%
unliberated iron minerals associated with non-metallic
mineral gangue form simple binary aggregates. Few non-
metallic minerals were locked and wrapped in the iron
minerals, so that the anti-warping distribution accounting
is less than 2.26%. According to the high-purity iron con-
centrate preparation evaluation system, it can be seen that
this sample is more accessible for preparing ultra-purity
Table 2. Mineral processing results of different samples
Number
Mineral
Processing
Technology
Beneficiation index
Total Fe Recovery SiO2 Al2O3 TiO2 CaO MgO S P
Acid
Insoluble
Matter
1 PCMF 71.54 44.20 0.25 0.11 0.10 0.03 0.01 0.005 0.003 0.16
2 PCMF 71.31 43.12 0.57 0.12 0.28 0.05 0.03 0.230 0.001 0.47
3 PCMF 71.36 66.81 0.22 0.14 0.16 0.04 0.01 0.020 0.004 0.30
4 PCMF 71.03 43.60 0.54 0.65 0.5 0.07 0.06 0.27 0.009 0.41
5 PCMF 71.03 17.31 0.42 0.68 0.3 0.09 0.16 0.06 0.008 0.55
6 PCMF 71.13 22.11 0.5 0.54 0.27 0.08 0.22 0.023 0.004 0.41
7 PCMF 70.15 26.14 0.73 0.83 0.88 0.05 0.16 0.13 0.001 0.82
8 PCMF 68.75 24.33 0.58 0.22 3.35 0.15 0.11 0.031 0.005 3.01
9 PCMF 72.28 73.27 0.35 0.16 0.12 0.05 0.12 0.006 0.001 0.23
10 PCMF 72.02 61.98 0.22 0.12 0.019 0.06 0.069 0.065 0.0041 0.19
Table 3. Evaluation system of high-purity iron ore preparation
Mineral properties High-purity iron concentrate types
Characteristics of magnetite
conjoint
Characteristics of magnetite
grain size
High-purity iron
concentrate
Ultra-purity iron
concentrate
Adjoining type 70% –10 μm content 10% Easy to prepare Easy to prepare
wrapping type 30%,
Anti-wrapping type 15% –10 μm content 20% Easy to prepare Available for preparation
Anti-wrapping type 40% –10 μm content 20% Available for preparation Not available for
preparation
wrapping type 30% –10 μm content 30% Available for preparation Not available for
preparation
Table 4. Chemical composition analysis of the sample (%)
Composition Total Fe FeO SiO2 Al2O3 CaO MgO S P
Contents 65.46 29.05 7.53 0.37 0.61 0.60 0.044 0.035
10 20 30 40 50 60 70 80 90
4000
6000
8000
10000
12000
14000
2 Theta (degree)
Magnetite
-Quartz
Figure 3. Phase composition analysis of the sample
Diffraction
intensyit
(Counts)
analysis in Table 6. The degree of dissociation of magnetite
and non-metallic minerals, as well as the type and quantity
of conjoined minerals, directly affect the formulation of the
mineral processing technology strategy. Therefore, a further
investigation into the bonding characteristics of iron min-
erals was conducted. As seen from Figure 4, the crystal par-
ticle size of the magnetite in the sample is relatively coarse.
Among them, magnetite with a size of –10 microns only
accounts for 14.36% of the observed sizing. The 75.33%
unliberated iron minerals associated with non-metallic
mineral gangue form simple binary aggregates. Few non-
metallic minerals were locked and wrapped in the iron
minerals, so that the anti-warping distribution accounting
is less than 2.26%. According to the high-purity iron con-
centrate preparation evaluation system, it can be seen that
this sample is more accessible for preparing ultra-purity
Table 2. Mineral processing results of different samples
Number
Mineral
Processing
Technology
Beneficiation index
Total Fe Recovery SiO2 Al2O3 TiO2 CaO MgO S P
Acid
Insoluble
Matter
1 PCMF 71.54 44.20 0.25 0.11 0.10 0.03 0.01 0.005 0.003 0.16
2 PCMF 71.31 43.12 0.57 0.12 0.28 0.05 0.03 0.230 0.001 0.47
3 PCMF 71.36 66.81 0.22 0.14 0.16 0.04 0.01 0.020 0.004 0.30
4 PCMF 71.03 43.60 0.54 0.65 0.5 0.07 0.06 0.27 0.009 0.41
5 PCMF 71.03 17.31 0.42 0.68 0.3 0.09 0.16 0.06 0.008 0.55
6 PCMF 71.13 22.11 0.5 0.54 0.27 0.08 0.22 0.023 0.004 0.41
7 PCMF 70.15 26.14 0.73 0.83 0.88 0.05 0.16 0.13 0.001 0.82
8 PCMF 68.75 24.33 0.58 0.22 3.35 0.15 0.11 0.031 0.005 3.01
9 PCMF 72.28 73.27 0.35 0.16 0.12 0.05 0.12 0.006 0.001 0.23
10 PCMF 72.02 61.98 0.22 0.12 0.019 0.06 0.069 0.065 0.0041 0.19
Table 3. Evaluation system of high-purity iron ore preparation
Mineral properties High-purity iron concentrate types
Characteristics of magnetite
conjoint
Characteristics of magnetite
grain size
High-purity iron
concentrate
Ultra-purity iron
concentrate
Adjoining type 70% –10 μm content 10% Easy to prepare Easy to prepare
wrapping type 30%,
Anti-wrapping type 15% –10 μm content 20% Easy to prepare Available for preparation
Anti-wrapping type 40% –10 μm content 20% Available for preparation Not available for
preparation
wrapping type 30% –10 μm content 30% Available for preparation Not available for
preparation
Table 4. Chemical composition analysis of the sample (%)
Composition Total Fe FeO SiO2 Al2O3 CaO MgO S P
Contents 65.46 29.05 7.53 0.37 0.61 0.60 0.044 0.035
10 20 30 40 50 60 70 80 90
4000
6000
8000
10000
12000
14000
2 Theta (degree)
Magnetite
-Quartz
Figure 3. Phase composition analysis of the sample
Diffraction
intensyit
(Counts)