CN105289834B - The zinc sulphur separation beneficiation method of zinc sulphide ore rich in magnetic iron ore - Google Patents
The zinc sulphur separation beneficiation method of zinc sulphide ore rich in magnetic iron ore Download PDFInfo
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Abstract
A kind of zinc sulphur separation beneficiation method of the zinc sulphide ore rich in magnetic iron ore, includes：（1）Ore prepares：Raw ore ore grinding after crushing；（2）Low intensity magnetic separation：The zinc sulphur ore pulp that magnetic iron ore is rich in after ore grinding is fed into drum cobber and carries out low intensity magnetic separation, obtains inferior fine magnetite concentrate and magnetic tail；（3）Zinc flotation：Calculated by raw ore per ton, lime is added in magnetic tailing and adjusts slurry pH, adds CuSO4As activator, addition butyl xanthate is collecting agent, addition 2#Oil carries out zincblende roughing as foaming agent；Sulfur content in the mine tailing obtained again according to zinc flotation decides whether to carry out step（4）Sulphur flotation, i.e., calculated by raw ore per ton, VS is added in zinc flotation tailing as activator, addition butyl xanthate is collecting agent, addition 2#Oil carries out pyrite roughing as foaming agent.Present invention optimizes flow, saves medicament, reduces the pollution to environment, can obtain qualified iron concentrate and zinc concentrate.
Description
Technical field
The present invention relates to a kind of beneficiation method of zinc sulphide ore, more particularly to a kind of zinc sulphide rich in magnetic iron ore
The zinc sulphur separation beneficiation method of ore.The present invention is more applicable when containing substantial amounts of magnetic iron ore in ore, belongs to mineral and adds
Work technical field.
Background technology
With the high speed development of Chinese national economy, the external dependence degree of China's metallic zinc improves constantly, and has exceeded at present
30%.Simultaneously because the zinc sulphide ore reserve that high-grade easily reclaims constantly is reduced, the ore dressing recovery of poor thin miscellaneous difficult zinc ore
Put on agenda.Involved in the present invention is exactly a kind of difficult zinc sulphide ore rich in magnetic iron ore.
At present, the ore dressing recovery method of zinc sulphide sulphur ore mainly has：Zinc sulphur order diffeential floatation method, zinc sulphur mix choosing-zinc
Sulphur separation method, iron sulfide is typically suppressed using reinforcing for the zinc sulphide ore containing sulphide ore（It is yellow including pyrite and magnetic
Iron ore）, first float the method that zinc reactivation floats sulphur.Because the floatability of zincblende is better than iron sulfide, for being free of or less containing magnetic Huang
The ore of iron ore, the floatation using sulphur after first zinc is feasible, but when mostling come from magnetic iron ore for the sulphur in ore,
Zinc sulphur separating effect is often bad and mutually containing higher, has a strong impact on the quality and zinc sulfur recovery rate of zinc concentrate.Even if realize reluctantly
Zinc sulphur content is from being often mixed into substantial amounts of magnetic iron ore, in order to improve the quality of zinc concentrate, also use magnetic selection method in zinc concentrate
To slough magnetic iron ore therein, reach the purpose for improving zinc concentrate grade.If contain certain copper oxide mineral in ore
Or during the secondary pig copper, when all causing activation to zinc sulfur mineral and making zincblende and close iron sulfide mineral floatability, at this moment with floating
Method separation of Zinc sulphur is selected with regard to extremely difficult, now either presses down the floating zinc of sulphur and still presses down the floating sulphur method of zinc, can not all realize that zinc sulphur is effective
The purpose of separation.
The content of the invention
The purpose of the present invention, which is that, overcomes above mentioned problem existing for prior art, studies by lot of experiments and repeatedly
Afterwards, a kind of beneficiation method of the zinc sulfur mineral in zinc sulphide ore of the effectively sorting rich in magnetic iron ore is developed, makes such a difficulty
Efficiently utilized with the resource that ore dressing is reclaimed.This beneficiation method that the present invention provides mainly is prepared by ore, low intensity magnetic separation, zinc
The steps such as flotation, sulphur flotation form, and according to ore properties, this beneficiation method processing provided according to the present invention is rich in magnetic Huang iron
During the zinc sulphide ore of ore deposit, zinc concentrate, magnetic iron ore concentrate can obtain, it is also possible to obtain vulcanizing iron ore concentrate, specific technology road
Line is shown in accompanying drawing.
The purpose of the present invention is realized by following technical measures.
The zinc sulphur separation beneficiation method of this zinc sulphide ore rich in magnetic iron ore, is characterized in including following step
Suddenly：
（1）Ore prepares：Ore grinding to mog is that -0.075mm accounts for 60~75% to raw ore after crushing, specific grade by
Ore properties determine；
（2）Low intensity magnetic separation：Under 1000~1500Gs magnetic induction intensity, the zinc sulphur ore pulp of magnetic iron ore will be rich in after ore grinding
Feed drum cobber and carry out low intensity magnetic separation, obtain inferior fine magnetite concentrate（Magnetic iron ore concentrate）And magnetic tail；Wherein inferior fine magnetite concentrate be exactly with
Iron concentrate based on magnetic iron ore, magnetic tail enter the zinc flotation operation of next step；
（3）Zinc flotation：Calculated by raw ore per ton, in magnetic tailing（Roughing is to ore deposit）Middle 1000-3000 grams of lime of addition, is adjusted
Whole slurry pH adds 50-200 grams of CuSO to more than 114As activator, 40-100 grams of butyl xanthate of addition is collecting agent,
Addition 2#Oily 10-40 grams as foaming agent progress zincblende roughing（In roughing operation, a small amount of drift according to circumstances can be also added
White powder, which is strengthened, suppresses sulphur）；The various medicament additions of once purging selection are respectively：500-1000 grams of lime, CuSO420-50 grams, butyl
20-50 grams of xanthate, 2#Oily 5-20 grams；It is secondary to scan various medicament additions and be respectively：200-500 grams of lime, CuSO410-20
Gram, 10-30 grams of butyl xanthate, 2#Oily 5-10 grams；Primary cleaning adds 100-200 grams of lime；Recleaning adds lime 50-
100 grams.
Sulfur content in the mine tailing obtained according to zinc flotation decides whether to carry out step（4）Sulphur flotation, i.e., by original per ton
Ore deposit is calculated, and 50-200 grams of VS is added in zinc flotation tailing（Novel vulcanization Fe-activator）As activator, 40-100 grams is added
Butyl xanthate is collecting agent, addition 2#Oily 10-40 grams as foaming agent progress pyrite roughing；The various medicaments of once purging selection add
Amount is respectively：VS20-50 grams, 20-50 grams of butyl xanthate, 2#Oily 5-20 grams；It is selected once to arrive secondary blank.
In the above-mentioned technical solutions, the butyl xanthate used produces for Tieling Beneficiation Reagent Co., Ltd.；2 used#Oil
Produced for Tieling Beneficiation Reagent Co., Ltd.；The VS used produces for Shenyang Research Institute of Nonferrous Metals, and above beneficiation reagent is
Market-oriented public offering.
Compared with prior art, beneficial effects of the present invention and technical characterstic are.
1st, the beneficiation method floated after first magnetic can obtain qualified iron concentrate and zinc concentrate, first floats zinc and does not float the method for sulphur then not again
One surely obtains qualified zinc concentrate.Because although magnetic iron ore floatability is poorer than zincblende, it also is difficult to be suppressed, especially
It is to need to use CuSO in flotation zincblende4To activate, while magnetic iron ore is also activated, and magnetic iron ore is easy when floating zinc
Into in zincblende concentrate, so as to have impact on Zinc Concentrates Quality.
2nd, flow is optimized, saves medicament.First float zinc and be re-activated the method for floating sulphur in floating zinc first with substantial amounts of stone
Ash and inhibitor suppress magnetic iron ore and pyrite, while magnetic iron ore is also difficult to restrain, then add again when selecting sulphur
Enter substantial amounts of sulfuric acid to adjust ore pulp to reduce pH value, while have the function that to clean mineral surfaces, cause the wave of beneficiation reagent
Take.For zinc sulfide ore of the sulfur-bearing based on magnetic iron ore, magnetic iron ore therein first is selected with weak magnetic choosing method, can both be obtained
To magnetic iron concentrate, while improve the Beneficiation Feed Grade of zinc again, reduce flotation and enter ore dressing amount, on the one hand save dosing, also for
The condition that follow-up flotation operation has been created.
3rd, the pollution to environment is reduced.Flotation can all use beneficiation reagent, and in general, beneficiation reagent is to environment or more
Or it is few cause necessarily to pollute, due to having reclaimed magnetic iron ore with magnetic method, reduce flotation treating capacity, flotation medicine will be used less
Agent, so as to reduce environmental pollution.
4th, in sulphur flotation operation due to having used new sulfur mineral activator, it can be not added with or add sulfuric acid on a small quantity,
Operation is simplified, reduces potential safety hazard.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
Technical scheme is described in detail in conjunction with instantiation.
Embodiment 1.
Experiment ore is Fujian somewhere zinc sulphur ore.Grade containing zinc is 1.25% in the zinc sulphur ore deposit, sulfur-bearing 15.47%, wherein
Sulphur in magnetic iron ore accounts for the 75% of full sulphur.The technological process of the flotation zinc of magnetic iron ore-again, the skill of acquisition are selected using low intensity magnetic separation
Art index is shown in Table 1.Main technical parameter is：Mog is that -0.075mm accounts for 65%, and magnetic field intensity is that 1250 Gs are first selected
Magnetic iron ore obtains magnetic iron concentrate, the flow flotation zinc that magnetic tailing sweeps two essences through one thick two.Floatation process parameter is：Roughing bar
Part：1000 grams of lime, adjustment slurry pH to 12, activator CuSO4100 grams, 50 grams of collecting agent butyl xanthate, foaming agent 2#Oil
20 grams；The various medicament additions of once purging selection are respectively：500 grams of lime, CuSO450 grams, 25 grams of butyl xanthate, 2#10 grams of oil；Two
It is secondary to scan various medicament additions and be respectively：200 grams of lime, CuSO420 grams, 10 grams of butyl xanthate, 2#5 grams of oil；Primary cleaning adds
Enter 200 grams of lime；Recleaning adds 100 grams of lime.
The result of the test of the embodiment 1 of table 1（%）.
Embodiment 2.
Experiment ore is Mongolia's copper zinc sulphur ore.Mine tailing after copper flotation is as experiment ore.Contain in test specimen
Zinc grade is 4.53%, and the sulphur in sulfur-bearing 12.48%, wherein magnetic iron ore accounts for 90%.Magnetic iron ore-float again is selected using low intensity magnetic separation
The technological process of zinc is selected, the technical indicator of acquisition is shown in Table 2.Main technical parameter is：Magnetic field intensity is that 1200 Gs first select magnetic
Pyrite, the flow flotation zinc that magnetic tailing sweeps two essences through one thick two.Floatation process parameter is：Roughing condition：1000 grams of lime,
Adjust slurry pH 11.5, activator CuSO4100 grams, 50 grams of collecting agent butyl xanthate, foaming agent 2#20 grams of oil；Once purging selection is each
Planting medicament addition is respectively：500 grams of lime, CuSO450 grams, 25 grams of butyl xanthate, 2#10 grams of oil；It is secondary to scan various medicaments
Addition is respectively：200 grams of lime, CuSO420 grams, 10 grams of butyl xanthate, 2#5 grams of oil；Primary cleaning adds 200 grams of lime；Two
It is secondary it is selected for blank it is selected.
The result of the test of the embodiment 2 of table 2（%）.
Embodiment 3.
Experiment ore is Inner Mongol zinc sulphur ore.Grade containing zinc is 2.81% in the zinc sulphur ore deposit, sulfur-bearing 20.90%, from ore deposit
From the point of view of stone mineral composition, essential mineral is magnetic iron ore, and content accounts for the 60.03% of mineral quantity；Next has pyrite, accounts for mineral quantity
5.46%；Zincblende accounts for the 5.21% of mineral quantity.Magnetic iron ore-flotation is selected to select the flotation of zinc-again to select the technique stream of sulphur using magnetic separation
Journey, the technical indicator of acquisition are shown in Table 3.Main technical parameter is：Mog is that -0.075mm accounts for 70%, and magnetic field intensity is
1100 Gs first select magnetic iron ore concentrate, and magnetic tailing is through the thick flow flotation zinc for sweeping two essences.Floatation process parameter is：
Roughing condition：1000 grams of lime, adjustment slurry pH to 13, activator CuSO4120 grams, 50 grams of collecting agent butyl xanthate；Once
Scanning various medicament additions is respectively：500 grams of lime, CuSO450 grams, 25 grams of butyl xanthate；Primary cleaning adds lime 200
Gram；Recleaning adds 100 grams of lime.Flow flotation sulphur of the floating zinc mine tailing through a thick essence.100 are added in zinc flotation tailing
Gram VS（Novel vulcanization Fe-activator）As activator, 60 grams of butyl xanthates of addition are collecting agent, addition 2#25 grams of conducts of oil rise
Infusion carries out pyrite roughing；Primary cleaning is that blank is selected.
The result of the test of the embodiment 3 of table 3（%）
Claims (1)
1. the zinc sulphur separation beneficiation method of the zinc sulphide ore rich in magnetic iron ore, it is characterised in that include following steps：
（1）Ore prepares：Ore grinding to mog is that -0.075mm accounts for 60~75% to raw ore after crushing, and specific grade is by ore
Property determines；
（2）Low intensity magnetic separation：Under 1000~1500Gs magnetic induction intensity, the zinc sulphur ore pulp that magnetic iron ore is rich in after ore grinding is fed
Drum cobber carries out low intensity magnetic separation, obtains inferior fine magnetite concentrate and magnetic tail, and wherein inferior fine magnetite concentrate is exactly the sulphur essence based on magnetic iron ore
Ore deposit, magnetic tail enter the zinc flotation operation of next step；
（3）Zinc flotation：Calculated by raw ore per ton, 1000-3000 grams of lime, adjustment slurry pH to 11 are added in magnetic tailing
More than, add 50-200 grams of CuSO4As activator, 40-100 grams of butyl xanthate of addition is collecting agent, addition 2#Oily 10-40 grams
Zincblende roughing is carried out as foaming agent；The various medicament additions of once purging selection are respectively：500-1000 grams of lime, CuSO420-
50 grams, 20-50 grams of butyl xanthate, 2#Oily 5-20 grams；It is secondary to scan various medicament additions and be respectively：200-500 grams of lime,
CuSO410-20 grams, 10-30 grams of butyl xanthate, 2#Oily 5-10 grams；Primary cleaning adds 100-200 grams of lime；Recleaning adds
50-100 grams of lime；
（4）Sulphur flotation, i.e., calculated by raw ore per ton, 50-200 grams of VS is added in zinc flotation tailing as activator, adds 40-
100 grams of butyl xanthates are collecting agent, addition 2#Oily 10-40 grams as foaming agent progress pyrite roughing；The various medicines of once purging selection
Agent addition is respectively：VS20-50 grams, 20-50 grams of butyl xanthate, 2#Oily 5-20 grams；It is selected once to arrive secondary blank.
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| CN105750074A (en) * | 2016-05-10 | 2016-07-13 | 中钢集团马鞍山矿山研究院有限公司 | Beneficiation method for improving zinc flotation index of lead-zinc polymetallic sulfide ore |
| CN105855036B (en) * | 2016-05-10 | 2018-07-03 | 中钢集团马鞍山矿山研究院有限公司 | A kind of shallow crust structures beneficiation method of high sulfur copper ore |
| CN106733216A (en) * | 2016-12-27 | 2017-05-31 | 云南锡业股份有限公司卡房分公司 | A kind of beneficiation method of the tin copper symbiotic sulfide ore rich in magnetic iron ore |
| CN107199120B (en) * | 2017-07-27 | 2018-09-18 | 中钢集团马鞍山矿山研究院有限公司 | A kind of beneficiation method containing magnetic iron ore, the high-sulfur magnetic iron ore of pyrite |
| CN110216017A (en) * | 2019-05-28 | 2019-09-10 | 西北矿冶研究院 | Combined inhibitor for improving production index of sphalerite and application thereof |
| CN113649172B (en) * | 2021-08-20 | 2023-03-24 | 青海省地质矿产测试应用中心(青海省生态环境地质检验检测中心) | Sulfur inhibitor, high-sulfur marmatite flotation reagent and application thereof |
| CN114632620A (en) * | 2022-03-07 | 2022-06-17 | 广东省大宝山矿业有限公司 | Beneficiation method for recovering copper, zinc and sulfur from zinc-containing copper-sulfur ore |
| CN115415042A (en) * | 2022-07-20 | 2022-12-02 | 西北矿冶研究院 | Quantitative balance distribution method of estramustine in pyrite beneficiation process |
| CN117816363A (en) * | 2024-03-05 | 2024-04-05 | 中国矿业大学(北京) | Separation and purification method of zinc concentrate |
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Address after: 110141 No. 7, No. 6, No. seven road, Shenyang economic and Technological Development Zone, Shenyang, Liaoning. Patentee after: Shenyang Nonferrous Metal Research Institute Co., Ltd. Address before: 110141 Shenyang economic and Technological Development Zone, Shenyang, Liaoning, No. seven, No. 7, Shenyang, No. 6, Shenyang Nonferrous Metal Research Institute Patentee before: Shenyang Research Institute of Nonferrous Metals |
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