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Domestic and foreign tin beneficiation index
The tin ore dressing indicators at home and abroad are shown in Table 1 below:
Table 1 Domestic and foreign tin beneficiation indicators
sequence
number
Mineral processing plant name
scale
t/d
Deposit type and mineral composition
Process flow introduction
product name
Mineral processing index, %
Remarks
α
β
ε
1
Yunxi Company Daxie Concentrator
1500
Type of oxidized vein tin ore. The main metallic minerals cassiterite, brown iron ore, hematite, followed by arsenic acid, lead, vanadium, marcasite, chrysocolla, malachite, hemimorphite, zinc mineral water and the like. The gangue minerals are quartz , calcite , mica , tourmaline , garnet , kaolin, etc.
The second section of crushed mine plus washing. The selection process is three-stage grinding, three-stage sorting, re-election, sand-sludge sorting, and sub-concentrate grinding. The slime is selected by centrifuge, the belt chute is selected, and the shaker is selected.
Tin concentrate
Xifu Middle Mine
0.3 to 0.4
53~54
3.5 to 4.0
70～71
3.0 to 3.2
2
Yunxi Company Daxie Sulphide Ore Dressing Plant
1800
Type of cassite polymetallic sulfide ore. The main magnetic metallic minerals pyrite, copper ore, cassiterite, scheelite, wolframite, iron sphalerite, pyrite, bismuthinite, bismuth natural, non-metallic mineral fluorite. The gangue minerals are mainly quartz, calcite, etc.
Three sections and one closed road mine. The selection process is floating-heavy-floating. Second-stage grinding, flotation copper, sulfur tailings for ore re-election, medium-mine re-grinding and secondary concentrates for centralized grinding, slime centrifuge rough selection, belt chute selection, tin and tungsten mixed coarse Concentrate separation by concentrate
Tin concentrate
Copper concentrate
Tungsten concentrate
Antimony concentrate
Sulfur concentrate
0.571
0.395
0.094
0.054
7.96
53.78
8.41
66.67
12.83
30.18
69.53
76.10
23.79
4.13
77.38
Refers to WO 3 concentrate
3
Dachang Mining Director Poor Mine
1000
Type of cassite polymetallic sulfide ore. The main metal minerals are pyrite, followed by iron sphalerite, brittle bismuth lead ore, cassiterite and the like. The gangue minerals are mainly quartz and calcite.
Three sections and one closed road mine. The selection process is heavy-floating-heavy, heavy medium is thrown away, and after grinding, it is sorted by jigging and shaker. Crude concentrate for grinding, flotation of sulfides, tailings with shaker sorting, slime for cassite flotation
Tin concentrate
Lead concentrate
Zinc concentrate
Sulfur concentrate
0.68
0.31
2.65
52.62
24.79
40.00
37.51
67.91
47.23
55.65
4
Yunxi Company Xinguan Concentrator
6000
Residual slope sand deposit type. The main metallic minerals cassiterite, limonite, hematite, followed by white lead, lead arsenate, lead, vanadium, iron, malachite, manganese tuberculosis. The gangue minerals are calcite, feldspar , tourmaline, quartz, mica, clay, etc.
Three sections of grinding, three sections of the selection. The main process is re-election, sand, mud sorting, and secondary concentrates. The slime is selected by centrifuge roughing, belt chute selection, shaker sweeping
Tin concentrate
Xifu Middle Mine
0.129～0.188
45.62～50.62
3.22~3.62
54.66～52.14
7.3~12.54
5
Guangdong Bantan Washing and Mineral Processing Plant
1500~1800
Type of alluvial sand mine. The main metallic minerals cassiterite, wolframite, columbite, titanium, tantalum, niobium, fergusonite ore, magnetite, ilmenite, limonite, hematite, rutile, zircon, monazite, Phosphonium ore. The gangue minerals are quartz, topaz , garnet, tourmaline, biotite, kaolin, etc.
Rough selection is the re-election process, and the selection process is combined with various methods such as heavy, magnetic, floating, and electricity.
Tin concentrate
0.149
70.69
81.69
Comprehensive recovery of antimony , zircon, monazite, xenotime, titanium ore, etc.
6
Pinggui Mining Bureau Selection Factory
125
Residual slope sand washing type. Process coarse concentrates. The main metal minerals are tin, hematite, limonite, and a small amount of magnetite. The gangue minerals are quartz, feldspar, calcite, etc.
Magnetic-heavy process based on re-election, multi-stage grinding, multi-stage selection
Tin concentrate
8.0
48
>93
α refers to coarse concentrate grade
7
Yunxi Company Old Factory Concentrator - Section
1000
Stock tailings for residual slope sand washing
Re-election
Tin concentrate
Xifu Middle Mine
0.528
40.63
4.74
22.67
9.43
8
[English] Geever (Geever) Concentrator
600
Quartz vein washing type. The metal minerals are cassiterite, pyrite, arsenic pyrite, and a small amount of copper sulfide. The gangue mineral is schist and granite
Heavy medium pre-selection, re-election process
Tin concentrate
0.7 to 1.0
40~50
75～80
9
[æ—¥]Shenziyu Concentrator
27000
t/d
Pulse tin type. The metal minerals are chalcopyrite, sphalerite, cassiterite, galena, antimony tin, pyrite, magnetite. The gangue minerals are quartz, calcite, fluorite, feldspar, and hornblende.
Lead and zinc use flotation, cassiterite re-election, cassiterite flotation
High grade tin concentrate
Low grade tin concentrate
0.27
61
25
52
8
Comprehensive recovery of lead and zinc
10
[Australia] Renison concentrator
1750
Type of cassiterite sulfide ore. The metal mineral is cassiterite and pyrrhotite. The gangue mineral is quartz, silicate
Heavy medium pre-selection, re-election and slime flotation
Tin concentrate
among them:
Re-election
Flotation
1.12~1.20
60
18~20
73
85 (job)
11
[Malaysia] Songgibesi concentrator
18000
Alluvial type of sand and tin mine. The metal minerals are cassiterite, pyrite, and arsenopyrite. The gangue mineral is quartz and clay.
Re-election process
Tin concentrate
0.01
74
90
12
[è‹]Xing'an Concentrator
Pulse tin type. The metal minerals are cassiterite, sphalerite, galena, chalcopyrite, pyrite, pyrite, fluorite. The gangue minerals are quartz, chlorite, sericite, feldspar, kaolin
Heavy-floating process
Tin concentrate
placer
Mud mine
0.46
18
11
87
2.6
Comprehensive recovery of fluorite
13
[Bolivia] Ipuk Concentrator
1000
Old tailings. The metal minerals are cassiterite, pyrite strontium ore, and strontium ore. The gangue minerals are quartz, tourmaline, calcite, silicate
Xiqiao flotation
Tin concentrate
0.3
18~20
50~55