CN103480496A - Sulfuration roasting flotation process for low-grade antimony oxide ore - Google Patents
Sulfuration roasting flotation process for low-grade antimony oxide ore Download PDFInfo
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Abstract
The invention discloses a sulfuration roasting flotation process for low-grade antimony oxide ore. According to oxidation antimony ore (antimony ore is cervantitepseudomorph after stibnite and stibnite, gangue minerals are mainly quartz and calcite) containing 0.5%-2% Sb (stibium, by mass ratio), the ore is filtered and dried after 65%-85% ore (by mass ratio) is grinded to be minus 0.074mm (millimeter) in fineness, 1%-3% elemental sulfur powder (by mass ratio) is mixed up in fine ore and goes through reducing roasting under the temperature of 300-450 DEG C for 30-45 minutes, roasted products cool naturally, and then combination collecting agent of amyl xanthate and ammonium dibutyldithiophosphate is added and stibium is recovered according to sulfuration antimony ore flotation process. By the aid of the sulfuration roasting flotation process, the problem of low recovery and use rate of oxidation antimony ore resources is solved, compared with conventional antimony oxide reelection and flotation processes, grade and recovery rate of stibium in the fine ore can be greatly improved, and a good application prospect is provided for middle-and-low grade complex antimony oxide ore resources difficult in flotation.
Description
Technical field
The present invention relates to a kind of antimony oxide ore sulfidation roasting floatation process, particularly relate to a kind of low-grade antimony oxide ore sulfidation roasting floatation process.
Background technology
Sorting of antimony oxide is a difficult problem of ore dressing circle, and gravity separation method can only reach the rate of recovery of 20% left and right, because surface wettability is strong, close with gangue mineral character, so the conventional flotation method also is difficult to realize separating of antimony oxide and gangue mineral.So far still there is no effective antimony oxide comprehensive recycling process both at home and abroad.
In recent years, a large amount of research work are being done by China aspect the antimony oxide ore recycling, mainly comprise gravity separation method, direct flotation method, reduction chloridizing volatilization, wet-leaching etc.The deficiency of these techniques is: although gravity separation method can obtain qualified concentrate grade, the rate of recovery is low, and the antimony oxide of 80% left and right is difficult to reclaim; Although the direct flotation method can obtain higher flotation recovery rate, concentration ratio is low, and concentrate grade is difficult to improve, and does not reach smelting requirements; The chloride volatility process reaction temperature is high, and handled ore requires head grade high, and difficulty is applied to middle low-grade antimony oxide and processes.Wet-leaching technique is higher to equipment requirement, the follow-up removal of impurities flow process of filtrate complexity, and environmental pollution is higher.The existence of these problems has had a strong impact on the industrial application of antimony oxide comprehensive utilization process technology.
In order effectively to solve the problem that the antimony oxide ore dressing is recycled, the invention provides a kind of antimony oxide ore sulfidation roasting new flotation technique.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of low-grade antimony oxide ore sulfidation roasting floatation process that can significantly improve the antimony oxide resource utilization.
In order to solve the problems of the technologies described above, low-grade antimony oxide ore sulfidation roasting floatation process provided by the invention, for containing Sb(by mass) be that (antimony mineral is cervantite and stibiconite for 0.5%～2% antimony oxide ore, gangue mineral is mainly quartz and calcite), by the ore ore grinding to fineness for-after 0.074mm accounts for (by mass) 65%～85%, filter and dry.Sneak into the elemental sulfur powder of (by mass) 1%～3% in fine ore, reduction roasting 30～45min at the temperature of 300～450 ℃, product of roasting is naturally cooling, then adopts the antimony sulfide ore method for floating to carry out the recovery of antimony.
Described antimony sulfide ore method for floating, be for the product after the antimony oxide ore sulfidation roasting, and first adding plumbi nitras is activator, then add amyl group xanthate and butyl ammonium aerofloat combined capturing and collecting agent that the mass ratio of 100～200g/t is 2～6:1,2
#oil is foaming agent, and flotation obtains final antimony concentrate.
The antimony oxide ore changes antimony oxide ore generation ore deposit by sulfidation roasting mutually, generates antimony sulfide ore, then adopts conventional antimony trisulfide floatation to carry out the recovery of antimony.After sulfidation roasting, make originally to be difficult to the flotation antimony oxide and undergo phase transition, become the antimony sulfide ore phase of easy flotation, thereby can adopt the antimony sulfide ore method for floating, flotation obtains all higher antimony concentrates of antimony grade and the rate of recovery.
In sum, the present invention can effectively solve the low difficult problem of antimony oxide ore resource recycling rate, compare with floatation process with the conventional gravity treatment of antimony oxide ore, can increase substantially Sb grade and the rate of recovery of antimony concentrate, to complicated difficult, select the antimony oxide resource to there is application prospect preferably.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
The antimony oxide raw ore is containing Sb0.5%.
The antimony oxide raw ore is carried out to ore grinding, the granularity of ore milling product accounts for 85% for-0.074mm, sneak into 1.0% elemental sulfur powder in the dry powder ore deposit, at the temperature of 300 ℃, reduction roasting is 40 minutes, and product of roasting is naturally cooling, then by floatation, carries out the recovery of antimony, at first adding plumbi nitras 350g/t is activator, add amyl group xanthate and butyl ammonium aerofloat combined capturing and collecting agent (amyl group xanthate and butyl ammonium aerofloat are in the ratio of 2:1) that total consumption is 100g/t, adding 2# oil is foaming agent
Flotation obtains final antimony concentrate.Test index is in Table 1.
Table 1 antimony oxide flotation recovery index
| Name of product | Productive rate (%) | Sb grade (%) | The Sb rate of recovery (%) |
| Antimony concentrate | 2.28 | 15.3 | 69.77 |
| Total mine tailing | 97.22 | 0.15 | 30.23 |
| Raw ore | 100 | 0.5 | 100 |
Embodiment 2:
The antimony oxide raw ore is containing Sb2.00%.
The antimony oxide raw ore is carried out to ore grinding, the granularity of ore milling product accounts for 65% for-0.074mm, sneak into 3% elemental sulfur powder in the dry powder ore deposit, at the temperature of 400 ℃, reduction roasting is 45 minutes, and product of roasting is naturally cooling, then by floatation, carries out the recovery of antimony, first adding plumbi nitras is activator, add amyl group xanthate and butyl ammonium aerofloat combined capturing and collecting agent (in the ratio of amyl group xanthate: butyl ammonium aerofloat=6:1) that total consumption is 200g/t, then add 2# oil for foaming agent, flotation obtains final antimony concentrate.Test index is in Table 2.
Table 2 antimony oxide flotation recovery index
| Name of product | Productive rate (%) | Sb grade (%) | The Sb rate of recovery (%) |
| Antimony concentrate | 7.12 | 24.55 | 87.39 |
| Total mine tailing | 92.88 | 0.29 | 12.61 |
| Raw ore | 100.0 | 2.00 | 100.00 |
Embodiment 3:
The antimony oxide raw ore is containing Sb0.83%.
The antimony oxide raw ore is carried out to ore grinding, the granularity of ore milling product accounts for 85% for-0.074mm, sneak into 1.3% elemental sulfur powder in the dry powder ore deposit, at the temperature of 350 ℃, reduction roasting is 30 minutes, product of roasting is naturally cooling, then carry out the recovery of antimony by floatation, at first adding plumbi nitras is activator, add amyl group xanthate and butyl ammonium aerofloat combined capturing and collecting agent (in the ratio of amyl group xanthate: butyl ammonium aerofloat=4:1) that total consumption is 120g/t, then add 2# oil for foaming agent, flotation obtains final antimony concentrate.Test index is in Table 3.
Table 3 antimony oxide flotation recovery index
| Name of product | Productive rate (%) | Sb grade (%) | The Sb rate of recovery (%) |
| Antimony concentrate | 3.12 | 20.02 | 75.26 |
| Total mine tailing | 96.88 | 0.21 | 24.74 |
| Raw ore | 100.0 | 0.83 | 100.00 |
Embodiment 4:
The antimony oxide raw ore is containing Sb1.5%.
The antimony oxide raw ore is carried out to ore grinding, the granularity of ore milling product accounts for 65% for-0.074mm, sneak into 1.8% elemental sulfur powder in the dry powder ore deposit, at the temperature of 450 ℃, reduction roasting is 35 minutes, product of roasting is naturally cooling, then by floatation, carries out the recovery of antimony, and at first adding plumbi nitras 300g/t is activator, add amyl group xanthate and butyl ammonium aerofloat combined capturing and collecting agent (in the ratio of 5:1) that total consumption is 200g/t, then add 2
#oil is foaming agent, and flotation obtains final antimony concentrate.Test index is in Table 4.
Table 4 antimony oxide flotation recovery index
Embodiment 5:
The antimony oxide raw ore is containing Sb1.10%.
The antimony oxide raw ore is carried out to ore grinding, the granularity of ore milling product accounts for 80% for-0.074mm, sneak into 1.5% elemental sulfur powder in the dry powder ore deposit, at the temperature of 450 ℃, reduction roasting is 30 minutes, product of roasting is naturally cooling, then by floatation, carries out the recovery of antimony, first adds the plumbi nitras activator, add amyl group xanthate and butyl ammonium aerofloat combined capturing and collecting agent (in the ratio of amyl group xanthate: butyl ammonium aerofloat=3:1) that total consumption is 150g/t, then add 2
#oil is foaming agent, and flotation obtains final antimony concentrate.Test index is in Table 5.
Table 5 antimony oxide flotation recovery index
| Name of product | Productive rate (%) | Sb grade (%) | The Sb rate of recovery (%) |
| Antimony concentrate | 4.07 | 21.04 | 77.85 |
| Total mine tailing | 95.93 | 0.26 | 22.15 |
| Raw ore | 100.0 | 1.10 | 100.00 |
Show from the result of the test of table 1～table 5, use low-grade antimony oxide ore sulfidation roasting floatation process of the present invention, can effectively realize the recycling of antimony oxide resource, obtain technic index preferably, there is good prospects for commercial application.
Claims (2)
1. a low-grade antimony oxide ore sulfidation roasting floatation process, it is characterized in that: for the antimony oxide ore that is 0.5%～2% containing Sb by mass, antimony mineral is cervantite and stibiconite, gangue mineral is mainly quartz and calcite, by the ore ore grinding to fineness for-after 0.074mm accounts for 65%～85% by mass, filter and dry; Sneak into 1%～3% elemental sulfur powder by mass in fine ore, reduction roasting 30～45min at the temperature of 300～450 ℃, product of roasting is naturally cooling, and the flotation that then adopts the antimony sulfide ore method for floating to carry out antimony is reclaimed.
2. low-grade antimony oxide ore sulfidation roasting floatation process according to claim 1, it is characterized in that: described antimony sulfide ore method for floating, for the product after the antimony oxide ore sulfidation roasting, first adding plumbi nitras is activator, add again the combined capturing and collecting agent of 100～200g/t, the composition of combined capturing and collecting agent is to be the amyl group xanthate in mass: butyl ammonium aerofloat=2～6:1,2
#oil is foaming agent, and flotation obtains final antimony concentrate.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170336A (en) * | 2015-09-24 | 2015-12-23 | 长春黄金研究院 | Method for improving antimony concentrate grade |
| CN114985112A (en) * | 2022-05-18 | 2022-09-02 | 广西大学 | Recovery method of mixed antimony ore containing gold, sulfur and oxygen |
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| CN1827798A (en) * | 2005-12-22 | 2006-09-06 | 云南冶金集团总公司 | Hot pressing conversion method for low-grade antimony oxide ore |
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| CN86105982A (en) * | 1986-09-03 | 1988-04-20 | 昆明工学院 | Cryogenic vulcanization roasting-beneficiating method reclaims copper, gold and silver |
| CN1827798A (en) * | 2005-12-22 | 2006-09-06 | 云南冶金集团总公司 | Hot pressing conversion method for low-grade antimony oxide ore |
| CN101024863A (en) * | 2007-02-06 | 2007-08-29 | 云南冶金集团总公司 | Method for pyrogenic sulfurizing difficult selected zinc oxide ore |
| RU2432407C1 (en) * | 2010-03-22 | 2011-10-27 | Федеральное государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Procedure for processing antimony-arsenic sulphide gold containing ore |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170336A (en) * | 2015-09-24 | 2015-12-23 | 长春黄金研究院 | Method for improving antimony concentrate grade |
| CN114985112A (en) * | 2022-05-18 | 2022-09-02 | 广西大学 | Recovery method of mixed antimony ore containing gold, sulfur and oxygen |
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