CN103495493B - Beneficiation method for low-grade fine tin ore - Google Patents
Beneficiation method for low-grade fine tin ore Download PDFInfo
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Abstract
The invention discloses a beneficiation method of low-grade fine tin ore, which comprises the following steps of firstly carrying out sulphide ore flotation on multi-metal raw ore to obtain sulphide ore concentrate and sulphide ore flotation tailings; carrying out magnetic separation on the sulfide ore flotation tailings to obtain iron ore concentrate and magnetic separation tailings; carrying out cyclone desliming treatment on the magnetic separation tailings to obtain cyclone sand setting; the method has the advantages that ore dressing interference factors are relatively reduced, the operation is stable, the technology is mature and reliable, the adaptability to ores is high, the influence of large fluctuation and change of mineral proportion can be avoided, the tin dressing index is stable, and the recovery rate of the cassiterite is improved.
Description
Technical field
The present invention relates to minerals separation technical field, particularly relate to a kind of beneficiation method of low-grade fine-particulate tin ore.
Background technology
At present, in Mineral separation technical field, the recovery of tin ore is mainly through gravity treatment or heavy-floating sorting process of combining.Gravity treatment has mainly been come by equipment such as spiral chute, shaking table, centrifugal ore separators, and Beneficiation flowsheet is long, and flowage structure is complicated, and operation factors is more.
Through the exploitation of decades, the single abundant ore source that China easily selects is day by day exhausted, and complicated low-grade unmanageable many metals mineral intergrowth progressively becomes the main body of development of resources.And low-grade fine-particulate tin ore, the cassiterite of especially polymetallic ore association, if reclaimed by gravity treatment, flotation or heavy-floating combined process flow, the cassiterite rate of recovery is lower.Therefore being recovered in actual production of prior art middle-low grade Fine cassiterite has larger limitation, is also difficult to realize its high-efficiency and economic and develops.
Summary of the invention
The object of this invention is to provide a kind of beneficiation method of low-grade fine-particulate tin ore, the method ore dressing disturbing factor reduces relatively, stable operation, technology maturation is reliable, to the strong adaptability of ore, can not change large impact by mineral rate fluctuations, tin sorting index is stablized, and improves the rate of recovery of cassiterite.
A beneficiation method for low-grade fine-particulate tin ore, described method comprises:
Sulfide flotation is carried out to many metal raw ore, obtains sulphide concentrate and sulfide flotation mine tailing;
Magnetic separation is carried out to described sulfide flotation mine tailing, obtains iron ore concentrate and magnetic tailing;
Cyclone desliming process is carried out to described magnetic tailing, obtains hydrocyclone sand;
In described hydrocyclone sand, add adjusting agent and collecting agent, and through one roughing, scan for three times, obtain cassiterite concentrate after triple cleaning.
In described hydrocyclone sand, add adjusting agent and collecting agent, and through one roughing, scan for three times, obtain cassiterite concentrate after triple cleaning, specifically comprise:
In described hydrocyclone sand, add adjusting agent, comprise sodium carbonate 300-500g/t, waterglass 50-100g/t, prodan 20-30g/t, plumbi nitras 300-400g/t, and stir 3 minutes;
Continue to add collecting agent, comprise modification oleic acid 300-400g/t, tributyl phosphate 50-70g/t, No. 2 oily 15g/t, and stir 3 minutes;
Again through one roughing, triple cleaning, scan for three times, obtain the cassiterite concentrate of stanniferous Sn20-30%, the rate of recovery about 90%.
Described modification oleic acid is that common oleic acid adds emulsifying agent and diesel oil, No. two oil and alcohol Homogeneous phase mixing, and its mixed proportion is 9:1:1:0.5:0.5.
As seen from the above technical solution provided by the invention, the method ore dressing disturbing factor reduces relatively, stable operation, technology maturation is reliable, to the strong adaptability of ore, can not change large impact by mineral rate fluctuations, tin sorting index is stablized, and improves the rate of recovery of cassiterite.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The beneficiation method schematic flow sheet of the low-grade fine-particulate tin ore that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Method described in the embodiment of the present invention is for low-grade fine-particulate tin ore, adopt the beneficiation reagent of complete floating technique and novel high selectivity, by force collecting power, improve the rate of recovery of Fine cassiterite to greatest extent, finally can obtain the cassiterite concentrate of stanniferous 20-30%, the rate of recovery about 90%.Be described in further detail the embodiment of the present invention below in conjunction with accompanying drawing, be illustrated in figure 1 the beneficiation method schematic flow sheet of the low-grade fine-particulate tin ore that the embodiment of the present invention provides, described method comprises:
Step 11: carry out sulfide flotation to many metal raw ore, obtains sulphide concentrate and sulfide flotation mine tailing;
Step 12: carry out magnetic separation to described sulfide flotation mine tailing, obtains iron ore concentrate and magnetic tailing;
Step 13: carry out cyclone desliming process to described magnetic tailing, obtains hydrocyclone sand;
Step 14: add adjusting agent and collecting agent in described hydrocyclone sand, and through one roughing, scan for three times, obtain cassiterite concentrate after triple cleaning.
Specifically, rougher concentration adds adjusting agent after triple cleaning, obtains cassiterite concentrate, and each selected operation only adds adjusting agent; Rougher tailings only adds collecting agent and obtain mine tailing after three times is scanned, and scavenger concentrate order turns back to last operation.
In specific implementation, first in described hydrocyclone sand, add adjusting agent, comprise sodium carbonate 300-500g/t, waterglass 50-100g/t, prodan 20-30g/t, plumbi nitras 300-400g/t, and stir 3 minutes;
Continue to add collecting agent, comprise modification oleic acid 300-400g/t, tributyl phosphate 50-70g/t, No. 2 oily 15g/t, and stir 3 minutes;
Again through one roughing, triple cleaning, scan for three times, obtain the cassiterite concentrate of stanniferous Sn20-30%, the rate of recovery about 90%.
Above-mentioned modification oleic acid is that common oleic acid adds emulsifying agent and diesel oil, No. two oil and alcohol Homogeneous phase mixing, and its mixed proportion is 9:1:1:0.5:0.5.
With concrete example, said method is described below, in this example, many metal raw ore cupric 0.2-0.3%, zinc 0.5-0.8%, tin 0.1-0.4%.First tcrude ore is broken, ore grinding accounts for 80-85% to-0.074mm, and then through sulfide flotation, iron removal by magnetic separation, cyclone desliming, hydrocyclone sand is as flotation to ore deposit, and wherein tin-lead soldering is 0.16-0.54% to containing Sn in ore deposit.
Embodiment 1:
Need the mineral 1 be separated: tin-lead soldering is 0.44% to containing Sn in ore deposit.
In above-mentioned flotation is to ore deposit, adds sodium carbonate 400g/t, waterglass 50g/t, prodan 20g/t, plumbi nitras 400g/t, stirs 3 minutes; Add water modification oleic acid 400g/t, tributyl phosphate 60g/t, No. 2 oily 15g/t again, stir 3 minutes; Through one roughing, triple cleaning, scan for three times, can obtain containing Sn29.54%, the rate of recovery is 91.32% Tin concentrate.
Embodiment 2:
Need the mineral 2 be separated: tin-lead soldering is 0.16% to containing Sn in ore deposit.
In above-mentioned flotation is to ore deposit, adds sodium carbonate 300g/t, waterglass 100g/t, prodan 30g/t, plumbi nitras 300g/t, stirs 3 minutes; Add modification oleic acid 300g/t, tributyl phosphate 50g/t, No. 2 oily 15g/t, stir 3 minutes; Through one roughing, triple cleaning, scan for three times, can obtain containing Sn27.38%, the rate of recovery is 89.21% Tin concentrate.
Embodiment 3:
Need the mineral 3 be separated: tin-lead soldering is 0.37% to containing Sn in ore deposit.
In above-mentioned flotation is to ore deposit, adds sodium carbonate 400g/t, waterglass 70g/t, prodan 30g/t, plumbi nitras 300g/t, stirs 3 minutes; Add modification oleic acid 400g/t, tributyl phosphate 70g/t, No. 2 oily 15g/t, stir 3 minutes; Through one roughing, triple cleaning, scan for three times, can obtain containing Sn29.16%, the rate of recovery is 90.08% Tin concentrate.
Embodiment 4:
Need the mineral 4 be separated: tin-lead soldering is 0.19% to containing Sn in ore deposit.
In above-mentioned flotation is to ore deposit, adds sodium carbonate 300g/t, waterglass 90g/t, prodan 25g/t, plumbi nitras 400g/t, stirs 3 minutes; Add modification oleic acid 300g/t, tributyl phosphate 50g/t, No. 2 oily 15g/t, stir 3 minutes; Through one roughing, triple cleaning, scan for three times, can obtain containing Sn27.27%, the rate of recovery is 88.17% Tin concentrate.
In sum, embodiment of the present invention middle-low grade Fine cassiterite adopts complete floating technique, and floatation process stable operation, the tin rate of recovery is high, and selected medicament environmentally safe, tailing water can qualified discharge.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. a beneficiation method for low-grade fine-particulate tin ore, is characterized in that, described method comprises:
Sulfide flotation is carried out to many metal raw ore, obtains sulphide concentrate and sulfide flotation mine tailing;
Magnetic separation is carried out to described sulfide flotation mine tailing, obtains iron ore concentrate and magnetic tailing;
Cyclone desliming process is carried out to described magnetic tailing, obtains hydrocyclone sand;
In described hydrocyclone sand, add adjusting agent and collecting agent, and through one roughing, scan for three times, obtain cassiterite concentrate after triple cleaning, specifically comprise:
In described hydrocyclone sand, add adjusting agent, comprise sodium carbonate 300-500g/t, waterglass 50-100g/t, prodan 20-30g/t, plumbi nitras 300-400g/t, and stir 3 minutes;
Continue to add collecting agent, comprise modification oleic acid 300-400g/t, tributyl phosphate 50-70g/t, No. 2 oily 15g/t, and stir 3 minutes;
Again through one roughing, triple cleaning, scan for three times, obtain the cassiterite concentrate of stanniferous Sn20-30%, the rate of recovery 90%.
2. the beneficiation method of low-grade fine-particulate tin ore according to claim 1, is characterized in that,
Described modification oleic acid is that common oleic acid adds emulsifying agent and diesel oil, No. two oil and alcohol Homogeneous phase mixing, and its mixed proportion is 9:1:1:0.5:0.5.
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| CN104492608B (en) * | 2014-11-21 | 2017-01-25 | 广西大学 | Floatation separation method of micro-fine-particle cassiterite and quartz |
| CN105618273A (en) * | 2016-01-12 | 2016-06-01 | 昆明理工大学 | Beneficiation method for cassiterite-polymetallic sulfide ores |
| CN106076647B (en) * | 2016-06-20 | 2019-11-26 | 武汉理工大学 | Utilize the method for magnetic iron ore in combination medicament activation and flotation iron ore concentrate |
| CN106111315A (en) * | 2016-08-01 | 2016-11-16 | 江苏省冶金设计院有限公司 | Prepare the method and system of iron ore concentrate |
| CN106269276A (en) * | 2016-08-29 | 2017-01-04 | 北京矿冶研究总院 | Beneficiation method for comprehensively recycling low-grade micro-fine particle tantalum-niobium resources and flotation reagent |
| CN107617506B (en) * | 2017-08-30 | 2019-07-16 | 昆明理工大学 | A kind of high-grade lode tin mine beneficiation method |
| CN107890946B (en) * | 2017-09-29 | 2019-07-16 | 昆明理工大学 | A kind of beneficiation method of micro fine particle |
| CN108580050B (en) * | 2018-04-11 | 2020-02-21 | 北京矿冶科技集团有限公司 | Method for floating potassium feldspar under neutral pH value condition |
| CN109092567A (en) * | 2018-08-02 | 2018-12-28 | 湖南柿竹园有色金属有限责任公司 | A kind of efficient collecting of tin and strong selectivity inhibitor process integration |
| CN110773327A (en) * | 2019-11-14 | 2020-02-11 | 云南锡业研究院有限公司 | Method for flotation recovery of fine cassiterite of oxidized vein tin ore |
| CN111841876B (en) * | 2020-07-16 | 2022-08-30 | 湖南柿竹园有色金属有限责任公司 | Method for segmented recycling of copper-tin polymetallic ore beneficiation wastewater |
| CN112354686A (en) * | 2020-10-15 | 2021-02-12 | 湖南柿竹园有色金属有限责任公司 | Application of mixed alkali in novel process for recycling low-degree fluorite tailings |
| CN113275130A (en) * | 2021-06-08 | 2021-08-20 | 青岛鑫润矿业科技有限公司 | Cheaper cassiterite flotation auxiliary collecting agent |
| CN113713963A (en) * | 2021-07-29 | 2021-11-30 | 四川谨而睿科技有限公司 | Method for recovering titanium concentrate from rough sulfide ore in ilmenite recovery process |
| CN115350811B (en) * | 2022-09-08 | 2024-04-12 | 昆明理工大学 | Method for comprehensively recovering lean tin tailings by magnetic gravity combination |
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