CN101176862A - Highly effective composite restrainer of ferro-sulphur ore in complex vulcanizing ore and method of use thereof - Google Patents
Highly effective composite restrainer of ferro-sulphur ore in complex vulcanizing ore and method of use thereof Download PDFInfo
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- CN101176862A CN101176862A CNA2007101924261A CN200710192426A CN101176862A CN 101176862 A CN101176862 A CN 101176862A CN A2007101924261 A CNA2007101924261 A CN A2007101924261A CN 200710192426 A CN200710192426 A CN 200710192426A CN 101176862 A CN101176862 A CN 101176862A
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Abstract
The invention relates to a high-efficient combined inhabitor for pyrite in complex sulfide ores and the application method of the inhabitor. The inhabitor comprises calcium superoxide and HA-Na. The inhabitor of the invention can inhibit complex vulcanized iron-bearing minerals selectively, has better inhibition properties for magnetic pyrite, pyrite and arsonopyrite, and is an inhabitor of high selectivity. Compared with the prior inhibitors such as lime, cyanide, bichrome, potassium permanganate, sodium sulfide, sulphite, zinc sulphate and trisodium phosphate, the invention has the advantages of lower use level, good effects, no pollution, and other advantages.
Description
[technical field]
The invention belongs to the sulphide mineral flotation technical field, is the assembled highly-effective inorganic inhibitor that a class is used for the complicated sulfuration mine troilite, relates in particular to the FLOTATION SEPARATION of the sulfide mineral that contains chalcopyrite, pyrite, magnetic iron ore type ore.The invention still further relates to the concrete application process of efficient inorganic inhibitor.
[background technology]
The main method of handling the complicated sulfuration mine thing at present is a FLOTATION SEPARATION, because resource is poor day by day, thin, assorted, the FLOTATION SEPARATION difficulty increases, and in order to improve the efficient that sulphide mineral flotation separates, strengthens the collecting aspect from chalcopyrite and improves separating effect.A prior aspect suppresses the troilite thing from the research and development highly efficient depressor and improves the possibility that these sulphide mineral flotations separate.
The present copper sulphur FLOTATION SEPARATION problem that exists, traditional copper sulphur content all is to add a large amount of lime in ore pulp from method, forms high-alkali high calcium ambient condition, make pyrite, magnetic iron ore surface oxidation and absorption calcium film and hydrophilic, thereby reach the purpose of copper sulphur FLOTATION SEPARATION.But because along with the recovery of sulphur is increasingly important.After reclaiming, chalcopyrite under the high-alkali high calcium ambient condition, must consider that the activation of its sulphur is reclaimed.For this reason, can from copper sulphur content from operation, seek new troilite inhibitor, can fine inhibition troilite, can not produce too high alkaline environment again.For the recovery of next step troilite provides advantage.
At present, be used for the inhibitor that sulphide mineral flotation separates and roughly can be divided into two big classes: one, use inorganic inhibitor always.As in the ore of sulfuration copper-lead zinc, normal association has pyrites, arsenical pyrite etc., and for flotation copper-lead zinc mineral better, available lime suppresses iron sulfide mineral.But in use, the easy fouling of lime, fixed, blocking pipe, its consumption is wayward, is unfavorable for the comprehensive recovery of production operation, management and resource.Though calper calcium peroxide has wide range of applications owing to self have very strong oxidability, as at aspects such as agricultural, aquaculture, wastewater treatment, coating, chemical industry important application being arranged all, still is not applied in the middle of the mineral floating field so far.Two, organic inhibitor, organic inhibitor can be divided into big molecule organic inhibitor and little molecule organic inhibitor again.If any adopting CMC, tannic acid, EDTA etc. being applied in the middle of the lead-zinc sulfide ore flotation, it suppresses effective but its poor selectivity is unfavorable for the separation of ore in the flotation.
[summary of the invention]
The objective of the invention is to problem at complicated sulfuration mine thing FLOTATION SEPARATION medicament poor selectivity, the present invention proposes that a kind of consumption is little, rejection good and selectivity is strong, nonhazardous, pollution-free, a kind of highly effective composite restrainer that is used for the complicated sulfuration mine troilite of being convenient to implement.
Another object of the present invention aims to provide the simple and practical application process of above-mentioned inhibitor.
The objective of the invention is to realize by following manner:
Inhibitor of the present invention is made up of calper calcium peroxide, sodium humate.
The mass ratio of described sodium humate and calper calcium peroxide is 0.5-4: 1.
Application process of the present invention is:
A, with sulfide mineral levigate after, add water and size mixing;
B, add calper calcium peroxide and sodium humate, and stir as troilite thing inhibitor;
C, add one or more combination in xanthate, black powder, the sulphur ammonium ester as collecting agent;
D, add terpenic oil or 2# oil, carry out the copper sulfide mineral flotation after stirring, the froth pulp that obtains is a copper concentrate.
The mog of sulfide mineral accounts for 75% for-0.045mm.The pH of ore pulp was 2～11 during described a went on foot.
Among the described step a, add water size mixing to pulp density be 15-40%.
Among the described step b, add inhibitor, wherein the mass ratio of sodium humate and calper calcium peroxide is 0.5-4: 1, and optimum ratio is 3: 1.Preferred interpolation after stirring, adds calper calcium peroxide in proper order for adding sodium humate earlier again.
Among the described step b, the addition of sodium humate is a 300-9000 gram/ton, and the addition of calper calcium peroxide is a 100-3000 gram/ton.
Among the described step b, the optimal addn of sodium humate is 900 gram/tons, and the optimal addn of calper calcium peroxide is 300 gram/tons.
Among the above-mentioned inhibitor using method step c, the addition of xanthate is a 50-300 gram/ton; The addition of black powder is a 30-300 gram/ton; The addition of sulphur ammonium ester is a 20-300 gram/ton.
Among the above-mentioned inhibitor using method step c, the xanthate optimal addn is 250 gram/tons; The optimal addn of black powder is 200 gram/tons; The optimal addn of sulphur ammonium ester is 200 gram/tons.
Terpenic oil or 2# oil addition is a 60-120 gram/ton in the above-mentioned inhibitor using method steps d.
In the above-mentioned inhibitor using method steps d, terpenic oil or 2# oil optimal addn are 100 gram/tons.
The present invention has adopted the mode of the combination of calper calcium peroxide and sodium humate, because calper calcium peroxide has very strong oxidability, by cooperating the complexing of sodium humate and calcium ion, can selectivity suppress complicated iron sulfide mineral, especially mineral such as magnetic iron ore, pyrite and mispickel being had rejection preferably, is a kind of highly selective inhibitor.Than inhibitor such as present lime, cyanide, bichromate, potassium permanganate, vulcanized sodium, sulphite, zinc sulfate and tertiary sodium phosphates, it is low to have a consumption, advantage such as effective, pollution-free.
The present invention combines inorganic inhibitor with organic inhibitor.Develop troilite thing inhibitor with efficient high selectivity.Sulfide mineral to chalcopyrite, pyrite, magnetic iron ore type ore has the good restraining effect, thereby reaches the FLOTATION SEPARATION of complicated sulfuration mine thing.
Technique effect of the present invention also is: because such inhibitor has the good restraining effect, so consumption is less in floatation process, reduced reagent cost; Application process of the present invention has overcome traditional flotation flowsheet, and because of the lime consumption height causes fouling and line clogging in the production, and the use of cyanide causes the shortcoming of environmental pollution etc.
[description of drawings]
Fig. 1 is the closed-circuit test flow chart of the embodiment of the invention 2 actual ores.
[instantiation mode]
Following examples are intended to illustrate the present invention rather than limitation of the invention further.
Embodiment 1
The minal test
(calper calcium peroxide: it is 1: 3 (300: 900g/t)) that humic acid is received to adopt composite restrainer of the present invention, chalcopyrite, magnetic iron ore, pyrite have been carried out the laboratory research of minal ore deposit, adopt the inhibitor of composite restrainer of the present invention as pyrite and magnetic iron ore, mineral 3g is got in each test.Carry out flotation in the hanging groove formula flotation device of 40ml, the pH values of pulp scope is 2～10. at first progressively to add inhibitor of the present invention, stirs 3 minutes; Adding butyl ammonium aerofloat 20g/t, stirring 2 minutes; Terpenic oil 15g/t stirred 1 minute; Flotation 4 minutes, the rate of recovery of minal.The results are shown in Table 1. as can be seen from the results, the composite restrainer of this invention can effectively suppress pyrite and magnetic iron ore, and chalcopyrite is not had inhibitory action, therefore chalcopyrite can well be separated with pyrite, PYRRHOTITE BY FLOTATION.
Table 1
| pH | The rate of recovery (%) | ||
| Chalcopyrite | Pyrite | Magnetic iron ore | |
| 6.45 8.91 10.42 | 88.24 90.56 92.28 | 30.55 29.85 29.64 | 28.32 27.69 25.21 |
Embodiment 2
Actual ore closed-circuit test
Adopt composite restrainer of the present invention (calper calcium peroxide 300g/t: it is 1: 3 that humic acid is received 900g/t), copper mine actual ore in Anhui has been carried out laboratory closed-circuit test research, its ore essential mineral is chalcopyrite, pyrite, magnetic iron ore etc.Such ore character complexity, the copper-bearing pyrrhotite-talcum of especially difficult choosing, the ore of serpentine type account for 30.12%, and the easily floating silicate gangue of existence has had a strong impact on the recovery rate in ore-dressing of copper.Therefore, at first to suppress pyrite and magnetic iron ore, preferentially select copper, the reactivation floatation pyrite.For this reason, adopt composite restrainer of the present invention, add sodium humate and calper calcium peroxide, strong inhibition pyrite and magnetic iron ore in 3: 1 ratios successively.Test adopts thick two essences and two to scan flow process, and flow chart is seen Fig. 1, and result of the test sees Table 2.
Table 2
| Product | Productive rate (γ %) | Grade (β %) | The rate of recovery (ε %) | ||
| Cu | S | Cu | S | ||
| Concentrate | 4.32 | 18.31 | 30.52 | 87.20 | 13.91 |
| Mine tailing | 95.68 | 0.12 | 8.54 | 12.80 | 86.09 |
| Raw ore | 100 | 0.86 | 9.48 | 100 | 100 |
Claims (9)
1. a highly effective composite restrainer that is used for the complicated sulfuration mine troilite is characterized in that, described inhibitor is made up of calper calcium peroxide, sodium humate.
2. a kind of highly effective composite restrainer that is used for the complicated sulfuration mine troilite according to claim 1 is characterized in that the mass ratio of sodium humate and calper calcium peroxide is 0.5-4: 1.
3. an application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite is characterized in that,
A, the levigate water that adds of sulfide mineral is sized mixing;
B, add calper calcium peroxide and sodium humate, and stir as troilite thing inhibitor;
C, add one or more combination in xanthate, black powder, the sulphur ammonium ester as collecting agent;
D, add terpenic oil or 2# oil, carry out the copper sulfide mineral flotation after stirring, the froth pulp that obtains is a copper concentrate.
4. a kind of application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite according to claim 3 is characterized in that, the mog of sulfide mineral accounts for 75% for-0.045mm.
5. a kind of application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite according to claim 3 is characterized in that, the pH of ore pulp was 2～11 during described a went on foot.
6. a kind of application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite according to claim 3 is characterized in that pulp density is 15%-40%.
7. a kind of application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite according to claim 3, it is characterized in that, among the described step b, the addition of sodium humate is a 300-9000 gram/ton, and the addition of calper calcium peroxide is a 100-3000 gram/ton.
8. a kind of application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite according to claim 3 is characterized in that, among the described step c, the addition of xanthate is a 50-300 gram/ton; The addition of black powder is a 30-300 gram/ton; The addition of sulphur ammonium ester is a 20-300 gram/ton.
9. a kind of application process that is used for the highly effective composite restrainer of complicated sulfuration mine troilite according to claim 3 is characterized in that, terpenic oil or 2# oil addition is a 60-120 gram/ton in the described steps d.
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| CN103817016A (en) * | 2014-03-20 | 2014-05-28 | 新巴尔虎右旗荣达矿业有限责任公司 | Low-grade multi-metal sulfide mineral copper and lead separating beneficiation combined inhibitor and application method thereof |
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| CN112588450A (en) * | 2020-11-26 | 2021-04-02 | 江西省三汇科技有限公司 | Humic acid-containing beneficiation inhibitor and application method thereof |
| CN113210136A (en) * | 2021-05-24 | 2021-08-06 | 中国恩菲工程技术有限公司 | Combined inhibitor for copper-nickel/copper-cobalt separation and application thereof |
| CN113210137A (en) * | 2021-05-24 | 2021-08-06 | 中国恩菲工程技术有限公司 | Combined inhibitor for separation of kaolin-containing copper sulfide ore and separation method |
| CN114653468A (en) * | 2022-03-22 | 2022-06-24 | 白银有色集团股份有限公司 | Beneficiation method for high-sulfur copper-zinc ore by applying sodium humate |
| CN114602657A (en) * | 2022-04-16 | 2022-06-10 | 昆明理工大学 | Pyrite flotation combined inhibitor and application thereof |
| CN114939598A (en) * | 2022-05-23 | 2022-08-26 | 中南大学 | Method for inhibiting biological oxidation of copper sulfide ore by using humic acid and application |
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