CN101890397A - Collector for mineral separation of copper arsenite and treatment method - Google Patents
Collector for mineral separation of copper arsenite and treatment method Download PDFInfo
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- CN101890397A CN101890397A CN2010102297599A CN201010229759A CN101890397A CN 101890397 A CN101890397 A CN 101890397A CN 2010102297599 A CN2010102297599 A CN 2010102297599A CN 201010229759 A CN201010229759 A CN 201010229759A CN 101890397 A CN101890397 A CN 101890397A
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Abstract
The invention discloses a collecting agent for mineral separation of copper arsenite and a treatment method thereof, belonging to the technical field of mineral separation. The collecting agent is formed by mixing isopropyl ethyl thiourethane and kerosene according to the mass ratio of 1: 1-1: 3. The method comprises the following steps: and respectively obtaining low-arsenic copper concentrate and high-arsenic copper concentrate by using the collecting agent through the steps of ore grinding, copper roughing, copper concentrating, arsenic roughing, arsenic concentrating, arsenic scavenging and the like. The method ensures that most of copper minerals are enriched in the low-arsenic copper concentrate and a small part of copper minerals are enriched in the high-arsenic copper concentrate; the two copper concentrates can be respectively treated conveniently, the cost is reduced, and the comprehensive recycling of the copper minerals is realized. The method has simple process, convenient operation and easy realization of mineral separation.
Description
Technical field
The present invention relates to technique of preparing, especially relate to a kind of ore dressing that contains domeykite with collecting agent and processing method.
Background technology
As everyone knows, copper mine type in the world mainly contains porphyry type, skarn type, layered-type, volcanic deposit type and copper-nickel sulphide type, wherein the most copper mine is mainly based on sulphide ore, and its copper bearing sulphide mainly contains chalcopyrite, vitreous copper, bornite, covellite etc.Arsenic-containing ores mainly contains mispickel (FeAsS), loellingite (FeAs
2), enargite (Cu
3AsS
4) and tennantite (Cu
8As
2S
7, become) etc., they usually with the tight symbiosis of copper mineral, its physical property is all similar to copper mineral to chemical property.Conventional beneficiation reagent system and beneficiation method can make the synchronous enrichment of arsenic-containing ores and copper mineral, finally make copper concentrate contain arsenic and exceed standard, and have a strong impact on the smelting processing of copper, etching apparatus not only, and cause the serious environmental pollution easily.
At present, the beneficiation method that adopt in many mines is to obtain earlier to contain the copper concentrate that arsenic exceeds standard, and adopts Wet-process metallurgy method to handle then and contains the arsenical copper concentrate, and the chemical consumption amount is big, the cost height, and environmental pollution is bigger, is unfavorable for environmental protection.Also there is the mine to adopt methods such as adding various inhibitor that mispickel is strengthened suppressing, finally obtains to contain the lower copper concentrate of arsenic.But contain the copper mineral of arsenic at some, less as the processing method of tennantite.Because tennantite belongs to copper-bearing mineral, close with general copper mineral character, be not easy on the one hand to suppress, with the synchronous enrichment of copper mineral, finally cause copper concentrate to contain arsenic and exceed standard; On the other hand, suppress if strengthen it, the rate of recovery of losing copper again easily causes the loss of copper resource, can't be recycled by enterprise.
Prior art is to suppressing the composite inhibitor of arsenic ore floatation, be in 200710055754.7 the patent application as number of patent application, by in the ore dressing processing procedure, adding the inhibition of inhibitor realization to arsenic-containing ores, be specially a kind of composite inhibitor that suppresses arsenic ore floatation, belong to beneficiation inhibitor, by CaO, Na
2SO
37H
2Three kinds of medicaments of O and sodium humate are formulated, and wherein, CaO is for adjusting agent, Na
2SO
37H
2O and sodium humate are inhibitor.Concrete techniqueflow as shown in Figure 1, inhibitor is added in the ball mill, add the water mill ore deposit to 65%-0.074mm, after be directed in the flotation device, stirred 10 minutes, and added butyl xanthate and stirred 3 minutes, add the butylamine black powder again and stirred 5 minutes, add foaming agent and stirred 1 minute, back air flotation got concentrate 1 in 3 minutes; Rougher tailings adds butyl xanthate, butylamine black powder, foaming agent respectively and stirs air flotation (roughly selecting II), obtains froth pulp and advances selected (selected I), and the froth pulp that selected I obtains carries out recleaning, obtains concentrate 2; Cleaner tailings returns in proper order; Roughly select the II mine tailing and add collecting agent respectively, foaming agent carries out scanning for twice, and froth pulp returns in proper order, scans the II mine tailing and is true tailings.There is following problems at least in this method: (1) is only obvious to mispickel type (mispickel) arsenic-containing ores inhibitory action, and tennantite type arsenic-containing ores is not then related to; (2) interpolation of inhibitor in the ore dressing process can not realize containing effective processing of arsenical copper mineral (as tennantite etc.).
Summary of the invention
The embodiment of the invention provides a kind of ore dressing that contains domeykite with collecting agent and processing method, is applicable to that copper mine handles containing domeykite, can solve and contain tennantite in the raw ore, causes the problem of final flotation concentrate arsenic content overproof.
The objective of the invention is to be achieved through the following technical solutions:
The embodiment of the invention provides a kind of ore dressing collecting agent that contains domeykite, and this collecting agent was mixed by mass ratio by isopropyl ethyl thiourethane and kerosene in 1: 1～1: 3.
The embodiment of the invention also provides a kind of ore dressing processing method that contains domeykite, comprising:
Ore grinding: to contain the pozzuolite copper mineral is raw ore, carries out ore grinding and obtain ore pulp after raw ore adds lime and water;
Copper is roughly selected: the described ore pulp that obtains is carried out copper roughly select processing, copper is roughly selected and is added collecting agent when handling, and adds the alcohols foaming agent, and copper obtains copper rough concentrate and copper rougher tailings after roughly selecting processing;
Copper is selected: the described copper rough concentrate that obtains is carried out obtaining after the selected processing of copper copper cleaner tailings and arsenic content less than 0.5% low arsenical copper concentrate;
Arsenic is roughly selected: carry out arsenic behind described copper rougher tailings adding collecting agent that will obtain and the alcohols foaming agent and roughly select processing, obtain arsenic and roughly select foam thing and arsenic rougher tailings;
Arsenic is selected: after described arsenic is roughly selected copper cleaner tailings that foam thing and the selected step of copper obtain and mixed, add lime and carry out obtaining ore pulp behind the ore grinding; After in described ore pulp, adding collecting agent, handle, after the selected II of arsenic handles and the selected III of arsenic handles, obtain arsenic content through the selected I of arsenic successively greater than 0.5% high arsenic-and copper-bearing concentrate;
Arsenic is scanned: after arsenic rougher tailings after described arsenic is roughly selected processing adds collecting agent and alcohols foaming agent, carry out arsenic and scan to handle and obtain arsenic and scan foam thing and mine tailing.
Alcohols foaming agent used in described each step adopts foaming agent BK201.
Described ore grinding step specifically comprises:
To contain the pozzuolite copper mineral is raw ore, and raw ore and lime are joined in the ball mill, and lime adding amount adds 800～1200g by raw ore per ton;
Add water in raw ore in described ball mill and the lime, the liquid-solid ratio of water and raw ore and lime is 1: 1, carries out ore grinding after adding water, and being milled to fineness is 60%-0.074mm～70%-0.074mm, obtains ore pulp.
Described copper is roughly selected step and is specifically comprised:
With the described ore pulp that obtains behind the ore grinding in flotation device, under stirring, add collecting agent and the alcohols foaming agent of roughly selecting collecting agent as copper successively, the addition of collecting agent adds 8g～12g by raw ore per ton, the addition of alcohols foaming agent adds 10g～14g by raw ore per ton, stir after 2～4 minutes, carry out air flotation 5～7 minutes, and obtained copper rough concentrate and copper rougher tailings.
The selected step of described copper specifically comprises:
Copper roughly selected handle the described copper rough concentrate obtain and inflate and obtain low arsenical copper concentrate and copper cleaner tailings after selected 4～6 minutes.
Described arsenic is roughly selected step and is specifically comprised:
Copper roughly selected handle the described copper rougher tailings obtain and under stirring, add collecting agent and alcohols foaming agent successively, the addition of collecting agent adds 8g～12g by raw ore per ton, the addition of alcohols foaming agent adds 6g～8g by raw ore per ton, stir and carried out air flotation 5～7 minutes after 2～4 minutes, obtain arsenic and roughly select foam thing and arsenic rougher tailings.
The selected step of described arsenic specifically comprises:
After described arsenic roughly selected copper cleaner tailings that foam thing and the selected step of copper obtain and mix in ball mill, add lime and carry out ore grinding, being milled to fineness is 85%-0.043mm, obtains ore pulp;
The selected I of arsenic: add collecting agent in the described ore pulp that obtains under stirring, the addition of collecting agent adds 8g～12g by raw ore per ton, stirs and inflates after 2～4 minutes selected 5～7 minutes, obtains the selected I mine tailing of arsenic selected I foam thing and arsenic;
The selected II of arsenic: in the foam thing I that the selected I step of arsenic obtains, add lime and stirred 2～4 minutes, inflated afterwards selected 5～7 minutes, obtain the selected II mine tailing of arsenic selected II foam thing and arsenic;
The selected III of arsenic: the foam thing II that the selected II of step arsenic is obtained inflated selected 5～7 minutes, obtained as the arsenic of high arsenic-and copper-bearing concentrate selected III foam thing and the selected III mine tailing of arsenic.
The selected step of described arsenic further comprises:
The selected II mine tailing of arsenic that the selected II step of arsenic is obtained mixes with the described ore pulp that the handled ore deposit step of regrinding of the selected I step of arsenic obtains, and the selected II mine tailing of arsenic that the selected II step of arsenic is obtained is got back in the selected I step of arsenic and handled once more;
The selected III mine tailing of arsenic that the selected III step of arsenic is obtained mixes with the selected I foam of the arsenic thing that the selected II step of the handled arsenic of the selected II step of arsenic obtains, and the selected III mine tailing of arsenic that the selected III step of arsenic is obtained is got back in the selected II step of arsenic and handled once more;
The selected I of arsenic is handled the selected I mine tailing of arsenic that obtains and arsenic scan and handle the arsenic that obtains and scan the foam thing and roughly select the handled copper rougher tailings of step with arsenic and mixes, make selected I mine tailing of arsenic that the selected I processing of arsenic obtains and arsenic scan arsenic that processing obtains and scan the foam thing and get back to arsenic and roughly select in the step and handle once more.
Described arsenic is scanned step and specifically comprised: the addition of collecting agent adds 6g～8g by raw ore per ton, and the addition of alcohols foaming agent adds 4g～6g by raw ore per ton.
The technical scheme that provides by the embodiment of the invention is a raw ore to contain the pozzuolite copper mineral in the embodiment of the invention as can be seen, roughly selects, after the selected processing of copper, separates obtaining low arsenical copper concentrate through copper; Copper roughly selected handle the copper rougher tailings obtain and roughly select, after the selected I of arsenic, the selected II of arsenic and the selected III of arsenic handle, obtain the high arsenic-and copper-bearing concentrate through arsenic.This method is utilized the difference of tennantite and other mineral floatability and the speed of swimming, roughly select adding efficient selective collecting agent of the present invention in the step at copper, on the basis of reduction to tennantite collecting power, reinforcement is to other copper mineral selectivity collecting, make the most copper mineral be enriched in low arsenical copper concentrate, acquisition contains the lower low arsenical copper concentrate (As＜0.5%) of arsenic and measures the less high arsenic-and copper-bearing concentrate that contains arsenic higher (As＞0.5%).The follow-up realization handled respectively low arsenical copper concentrate and high arsenic-and copper-bearing concentrate, reduced production cost, obtains the copper resource and reclaims maximization.This method can realize effectively reclaiming to containing arsenical copper mineral (as tennantite), realizes the comprehensive recovery of copper resource in the raw ore.
Description of drawings
The process flow figure that Fig. 1 provides for the embodiment of the invention.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Present embodiment provides a kind of ore dressing collecting agent that contains domeykite, and this collecting agent was mixed by mass ratio by isopropyl ethyl thiourethane and kerosene in 1: 1～1: 3.The whole molecule of kerosene is that nonpolar, structure is uniform, its molecule is polar functionalities not, and all the saturated compounds that forms by covalent bonds between hydrocarbon atom, cause in the aqueous solution and do not present hydrophobicity and slightly solubility with the effect of dipole hydrone, externally show as weak molecular link, thereby be attached to the nonpolar mineral that the surface is weak molecular link equally easily, the hydrophobicity of mineral surfaces is strong more, lipophile is big more, hydrocarbon ils is easy more in the absorption of mineral surfaces, adsorbance is also many more, and adsorption rate is also fast more.Therefore, for different minerals, the collecting interaction energy of kerosene presents certain selectivity.Chemisorbed takes place on the copper mineral surface in isopropyl ethyl thiourethane, can strengthen selectivity collecting, particularly chalcopyrite and vitreous copper to copper mineral; A little less than the pyrite collecting ability.Isopropyl ethyl thiourethane and kerosene mix use, strengthen the selectivity collecting to copper mineral on the one hand; On the other hand, strengthen the selectivity to tennantite, reduction is to the collecting of tennantite, thereby realization most copper mineral are enriched in the low arsenical copper concentrate, and the small part copper mineral is enriched in the high arsenic-and copper-bearing concentrate.
Present embodiment also provides a kind of ore dressing processing method that contains domeykite, and this method mainly is to utilize above-mentioned collecting agent, can be to containing domeykite, and the ore that particularly contains tennantite is handled, and realizes effective recovery of copper, and this method comprises:
Ore grinding: to contain the pozzuolite copper mineral is raw ore, it can be the ore of tennantite, raw ore is joined in the ball mill, in the raw ore of ball mill, add the lime that accounts for raw ore gross mass 0.08%～0.12%, solid-to-liquid ratio by 1: 1 adds water in the raw ore of ball mill and lime then, carries out ore grinding after adding water, and being milled to fineness is that 60%-0.074mm～70%-0.074mm (can be according to the complexity difference of dissociating of different minerals, carry out ore grinding), obtain ore pulp;
Copper is roughly selected: the described ore pulp that obtains is carried out copper roughly select processing, copper is roughly selected and is treated to: the described ore pulp that obtains behind the ore grinding is joined in the flotation device, under stirring, in ore pulp, add above-mentioned collecting agent and alcohols foaming agent (the alcohols foaming agent can be foaming agent BK201) successively, the collecting agent addition adds 8g～12g by raw ore per ton, the addition of alcohols foaming agent adds 10g～14g by raw ore per ton, stir after 2～4 minutes, carry out air flotation 5～7 minutes, and obtained copper rough concentrate and copper rougher tailings;
Copper is selected: copper is roughly selected handled the described copper rough concentrate obtain and inflate and obtain low arsenical copper concentrate and copper cleaner tailings after selected 4～5 minutes;
Arsenic is roughly selected: the described copper rougher tailings that will obtain adds successively under stirring and carries out arsenic behind collecting agent and the alcohols foaming agent and roughly select processing, the addition of collecting agent (with reference to raw ore per ton) is respectively 8g/～12g/t, the addition of foaming agent BK201 (with reference to raw ore per ton) is respectively 6g/t～8g/t, arsenic is roughly selected and is treated to: stir and carried out air flotation 5～6 minutes after 2～4 minutes, obtain arsenic and roughly select foam thing and arsenic rougher tailings;
Arsenic is selected: after described arsenic is roughly selected copper cleaner tailings that foam thing and the selected step of copper obtain and mixed, add lime and carry out obtaining ore pulp behind the ore grinding; Adding collecting agent in described ore pulp (after the addition of collecting agent adds 8g～12g) by raw ore per ton, handles, after the selected II of arsenic handles and the selected III of arsenic handles, obtains the high arsenic-and copper-bearing concentrate through the selected I of arsenic successively;
Above-mentioned arsenic is selected specifically to be comprised: after described arsenic is roughly selected copper cleaner tailings that foam thing and the selected step of copper obtain and mixed in ball mill, add lime and carry out ore grinding, being milled to fineness is 85%-0.043mm, obtains ore pulp;
The selected I of arsenic: in the described ore pulp that obtains, under stirring, add collecting agent, stir and inflated after 2～4 minutes selected 5～6 minutes, obtain the selected I mine tailing of arsenic selected I foam thing and arsenic;
The selected II of arsenic: in the foam thing I that the selected I step of arsenic obtains, add lime and stirred 2～4 minutes, inflated afterwards selected 5～6 minutes, obtain the selected II mine tailing of arsenic selected II foam thing and arsenic;
The selected III of arsenic: the foam thing II that the selected II of step arsenic is obtained inflated selected 5～6 minutes, obtained as the arsenic of high arsenic-and copper-bearing concentrate selected III foam thing and the selected III mine tailing of arsenic.
Arsenic is scanned: the arsenic rougher tailings after described arsenic is roughly selected processing adds collecting agent and foaming agent BK201 successively under stirring after, carry out arsenic and scan processing, arsenic is scanned and is treated to; Stir after 2～4 minutes, carried out air flotation 5～6 minutes, obtain arsenic after the flotation and scan foam thing and true tailings.
The selected step of the arsenic of said method can further include:
The selected II mine tailing of arsenic that the selected II step of arsenic is obtained mixes with the described ore pulp that the handled ore deposit step of regrinding of the selected I step of arsenic obtains, and the selected II mine tailing of arsenic that the selected II step of arsenic is obtained is got back in the selected I step of arsenic and handled once more.
The selected III mine tailing of arsenic that the selected III step of arsenic is obtained mixes with the selected I foam of the arsenic thing that the selected II step of the handled arsenic of the selected II step of arsenic obtains, and the selected III mine tailing of arsenic that the selected III step of arsenic is obtained is got back in the selected II step of arsenic and handled once more.
Said method can also be handled the selected I of arsenic the selected I mine tailing of arsenic that obtain and arsenic and scan and handle the arsenic that obtains and scan the foam thing and roughly select the handled copper rougher tailings of step with arsenic and mixes, makes selected I mine tailing of arsenic that the selected I processing of arsenic obtains and arsenic scan arsenic that processing obtains and scans the foam thing and get back to arsenic and roughly select in the step and handle once more.
Flow process below in conjunction with Fig. 1 is described further said method:
The method of present embodiment can be at containing domeykite, the ore that particularly contains tennantite carries out ore dressing to be handled, utilize tennantite and other mineral floatability and the difference of the speed of swimming, adopt the efficient selective collecting agent of the embodiment of the invention, reinforcement is to the selectivity collecting of other copper mineral, under the condition of low alkali, each step processing by ore dressing obtains the lower low arsenical copper concentrate (As＜0.5%) of arsenic content and contains the higher high arsenic-and copper-bearing concentrate of arsenic (As＞0.5%), can the copper resource be reclaimed fully by this method.
Shown in the handling process of accompanying drawing 1, raw ore (is contained the arsenic copper sulfide ore, can be tennantite) and lime join in the ball mill, adding water at 1: 1 by liquid-solid ratio enters ball mill and carries out ore grinding, being milled to fineness is 65%-0.074mm, the ore pulp that mill is good imports in the flotation device (add water and be adjusted to 33% left and right sides concentration), add the invention collecting agent under the stirring successively, foaming agent BK201 also stirred 2 minutes, air flotation 5 minutes (copper is roughly selected) then, obtaining the copper rough concentrate, to enter copper selected, and the copper rough concentrate was inflated selected 4 minutes, and the gained concentrate is low arsenical copper concentrate;
Under copper rougher tailings stirring, add the collecting agent that the embodiment of the invention provides successively, foaming agent BK201 also stirred 2 minutes, air flotation 5 minutes (arsenic is roughly selected) then, gained froth pulp and copper cleaner tailings enter ball mill in the lump, add lime and are milled to 85%-0.043mm; After the ore pulp that mill is good moved into flotation device, the collecting agent that the adding embodiment of the invention provides also stirred 2 minutes, inflated selected (the selected I of arsenic) 5 minutes; Froth pulp adds lime and goes into flotation device inflation stirring 2 minutes, inflates selected 5 minutes (the selected II of arsenic); The selected II froth pulp of arsenic carries out selected 5 minutes (the selected III of arsenic) of blank inflation; The selected III gained of arsenic froth pulp is the high arsenic-and copper-bearing concentrate; The arsenic rougher tailings adds collecting agent and the foaming agent BK201 that the embodiment of the invention provides successively and stirred 2 minutes, air flotation 5 minutes (arsenic is scanned) then, and the selected I mine tailing of gained froth pulp and arsenic is back to arsenic and roughly selects operation; The selected III mine tailing of selected II of arsenic and arsenic order successively returns; After scanning, arsenic promptly gets final flotation tailing.
Embodiment 1
Present embodiment provides a kind of ore dressing processing method that contains domeykite, and this method comprises:
The copper mine raw material: metalliferous mineral has chalcopyrite, pyrite and tennantite in certain copper mine ore, secondly is molybdenite, alpha chalcocite, magnetic iron ore, zincblende, galena, aciculite caikinite, electrum, hessite, matilidite, mispickel, scheelite, ferberite or the like.Gangue mineral is mainly quartz, feldspar, is mica, chlorite, dolomite, calcite, apatite, rutile, aspidelite, zircon, monazite, graphite etc. secondly.The main chemical compositions analysis result of ore sees Table 1;
The result of the test that adopts traditional ore-dressing technique that above-mentioned ore is handled acquisition sees Table 2; As can be seen from Table 2, contain arsenic higher (arsenic＞0.5%) in the final copper concentrate, have a strong impact on the copper concentrate quality, be unfavorable for follow-up copper being reclaimed fully.
Adopt the result of the test of the ore dressing processing method acquisition of the embodiment of the invention to see Table 3.
The concrete handling process of present embodiment is: the consumption adding lime by 1000g/t (raw ore per ton adds 1000g) in raw ore is gone into ball mill, 50% concentration ore grinding to fineness is 65%-0.074mm, the back imports flotation device, adds the collecting agent and the foaming agent BK201 of the embodiment of the invention successively; Copper is roughly selected foam must hang down the arsenical copper concentrate through primary blank is selected; The collecting agent and the foaming agent BK201 that add the embodiment of the invention in the copper rougher tailings successively, gained froth pulp and copper cleaner tailings enter ball mill in the lump and carry out ball milling, add 60g/t lime ore grinding to 85%-0.043mm, the back imports flotation device, the collecting agent that adds the embodiment of the invention by the addition of 4g/t carries out the selected I of arsenic, the froth pulp of the selected I of arsenic carries out the selected II of arsenic by the addition adding lime of 40g/t, and the froth pulp of the selected II of arsenic carries out the selected III of arsenic; The selected III gained of arsenic froth pulp is the high arsenic-and copper-bearing concentrate; The mine tailing that selected each operation of arsenic obtains returns in proper order; The arsenic rougher tailings adds the collecting agent (the amount addition by raw ore is 7g/t) of the embodiment of the invention successively, and foaming agent BK201 (addition with reference to raw ore is 4g/t) carries out arsenic and scans; Arsenic is scanned the mine tailing that obtains and is true tailings.
After adopting above-mentioned ore dressing disposal methods, can be on the basis of the less copper recovery of loss (the copper recovery loss is 0.81% in the present embodiment), most copper, molybdenum are enriched in contain in the lower low arsenical copper concentrate of arsenic, a spot of copper, molybdenum are enriched in the high arsenic-and copper-bearing concentrate, have made things convenient for follow-up recovery to copper.
The main chemical compositions analysis result of table 1 ore
| Chemical composition | Cu | Mo | S | Fe | Pb | Zn |
| Content, % | 1.50 | 0.025 | 2.18 | 4.18 | 0.043 | 0.075 |
| Chemical composition | P | C | SiO 2 | Al 2O 3 | CaO | MgO |
| Content, % | 0.067 | 1.02 | 60.04 | 12.81 | 3.16 | 2.49 |
| Chemical composition | K 2O | Na 2O | As | Sb | Au* | Ag* |
| Content, % | 3.78 | 2.64 | 0.056 | 0.029 | 0.62 | 27.14 |
* Au, Ag unit are g/t
The result of the test that table 2 adopts traditional ore-dressing technique to obtain
The result of the test that table 3 adopts the present embodiment processing method to be obtained
Embodiment 2
Present embodiment provides a kind of ore dressing processing method that contains domeykite, and this method comprises:
The character of used ore: certain copper mine, metalliferous mineral mainly contains molybdenite, chalcopyrite, covellite, alpha chalcocite, bornite, tennantite, pyrite, magnetic iron ore, zincblende, galena, magnetic iron ore, mispickel etc. in the ore; Gangue mineral mainly contains quartz, feldspar, biotite etc.The main chemical compositions analysis result of ore sees Table 4.
The result of the test that adopts traditional ore-dressing technique to obtain sees Table 5; As can be seen from Table 5, this ore is through traditional mineral processing circuit, and promptly copper molybdenum controling differential flotation process for copper contains arsenic higher (arsenic＞0.5%) in the final copper concentrate, has a strong impact on the copper concentrate quality, is unfavorable for follow-up copper being reclaimed fully.
Adopt the result of the test of the processing method acquisition of present embodiment to see Table 6, the handling process among the handling process of present embodiment and the embodiment 2 basic identical (referring to the ore dressing handling process of Fig. 1).
As can be seen from Table 6, after adopting the ore dressing disposal methods of present embodiment, can be on the basis of less copper recovery of loss and molybdenum recovery, the high arsenic-and copper-bearing concentrate of the low arsenical copper concentrate of acquisition enrichment most copper, molybdenum and a little copper, molybdenum, through subsequent treatment, can make things convenient for and fully low arsenical copper concentrate and high arsenic-and copper-bearing concentrate are handled, realize abundant recovery copper.
The main chemical compositions analysis result of table 4 ore
| Chemical composition | Cu | Mo | S | As | Fe | Pb |
| Content, % | 0.52 | 0.013 | 2.13 | 0.017 | 2.90 | 0.028 |
| Chemical composition | Zn | P | SiO 2 | Al 2O 3 | K 2O | Na 2O |
| Content, % | 0.064 | 0.023 | 71.95 | 7.82 | 6.00 | 0.53 |
| Chemical composition | CaO | MgO | Au* | Ag* | - | - |
| Content, % | 0.14 | 1.43 | 0.15 | 4.76 | - | - |
* Au, Ag unit are g/t
The result of the test that table 5 adopts traditional ore-dressing technique to obtain
The result of the test that table 6 adopts the present embodiment processing method to be obtained
Embodiment 3
Present embodiment provides a kind of ore dressing processing method that contains domeykite, and this method comprises:
The character of used ore: certain copper-molybdenum, metalliferous mineral mainly contains chalcopyrite, pyrite, tennantite and bornite in the ore, secondly is molybdenite, alpha chalcocite, mispickel, magnetic iron ore, zincblende, marmatite, galena, electrum, scheelite, wolframite etc.Gangue mineral is mainly quartz, feldspar, secondly is muscovite, chlorite, dolomite, apatite, calcite, rutile, monazite, aspidelite, reaches a spot of graphite etc.The main chemical compositions analysis result of ore sees Table 7.
The result of the test that adopts traditional ore-dressing technique that above-mentioned ore is handled acquisition sees Table 8.This ore contains arsenic higher (0.64%) through traditional mineral processing circuit in the final copper concentrate;
The result of the test of the processing method that adopts the embodiment of the invention after to the processing of above-mentioned ore sees Table 9.
Adopt this ore dressing treatment technology,, make reclaiming of copper, molybdenum resource to effective guaranteeing that copper, molybdenum recovery lose under the less situation; Simultaneously, significantly reduced the high arsenic-and copper-bearing concentrate amount that needs processing.
The main chemical compositions analysis result of table 7 ore
| Chemical composition | Cu | Mo | S | Fe | Pb | Zn |
| Content, % | 2.05 | 0.065 | 3.31 | 5.76 | 0.061 | 0.044 |
| Chemical composition | P | C | SiO 2 | Al 2O 3 | CaO | MgO |
| Content, % | 0.059 | 1.21 | 63.22 | 10.24 | 2.41 | 1.53 |
| Chemical composition | K 2O | Na 2O | As | WO 3 | Au* | Ag* |
| Content, % | 2.70 | 1.88 | 0.075 | 0.013 | 1.33 | 49.88 |
* Au, Ag unit are g/t
The result of the test that table 8 adopts traditional ore-dressing technique to obtain
The result of the test that table 9 adopts the present embodiment processing method to be obtained
In sum, the processing method of the embodiment of the invention, utilize tennantite and other mineral floatability and the difference of the speed of swimming, adopt the efficient selective collecting agent of the embodiment of the invention, on the basis of reduction to tennantite collecting power, reinforcement is to the selectivity collecting of other copper mineral, the most copper mineral are enriched in the low arsenical copper concentrate, acquisition contains the high arsenic-and copper-bearing concentrate that the lower low arsenical copper concentrate (As＜0.5%) of arsenic and small part contain arsenic higher (As＞0.5%), can make things convenient for subsequent treatment, realization is to containing domeykite, and particularly the copper in the tennantite fully reclaims.This method technology is simple, and cost is low, workable (than hydrometallurgical processes); On the basis that the most copper mineral are reclaimed, realize effectively reclaiming to containing arsenical copper mineral (as tennantite), realize the comprehensive recovery of copper resource in the raw ore.Utilize the low arsenical copper concentrate and the high arsenic-and copper-bearing concentrate that obtain, can realize the follow-up copper concentrate of handling respectively, reduce production costs, obtain the copper resource and reclaim maximization.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation 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 (10)
1. an ore dressing collecting agent that contains domeykite is characterized in that, this collecting agent was mixed by mass ratio by isopropyl ethyl thiourethane and kerosene in 1: 1～1: 3.
2. an ore dressing processing method that contains domeykite is characterized in that, comprising:
Ore grinding: to contain the pozzuolite copper mineral is raw ore, carries out ore grinding and obtain ore pulp after raw ore adds lime and water;
Copper is roughly selected: the described ore pulp that obtains is carried out copper roughly select processing, copper is roughly selected and is added collecting agent when handling, and adds the alcohols foaming agent, and copper obtains copper rough concentrate and copper rougher tailings after roughly selecting processing;
Copper is selected: the described copper rough concentrate that obtains is carried out obtaining after the selected processing of copper copper cleaner tailings and arsenic content less than 0.5% low arsenical copper concentrate;
Arsenic is roughly selected: carry out arsenic behind described copper rougher tailings adding collecting agent that will obtain and the alcohols foaming agent and roughly select processing, obtain arsenic and roughly select foam thing and arsenic rougher tailings;
Arsenic is selected: after described arsenic is roughly selected copper cleaner tailings that foam thing and the selected step of copper obtain and mixed, add lime and carry out obtaining ore pulp behind the ore grinding; After in described ore pulp, adding collecting agent, handle, after the selected II of arsenic handles and the selected III of arsenic handles, obtain arsenic content through the selected I of arsenic successively greater than 0.5% high arsenic-and copper-bearing concentrate;
Arsenic is scanned: after arsenic rougher tailings after described arsenic is roughly selected processing adds collecting agent and alcohols foaming agent, carry out arsenic and scan to handle and obtain arsenic and scan foam thing and mine tailing;
Used collecting agent all adopts aforesaid right to require 1 collecting agent in the above steps.
3. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, alcohols foaming agent used in described each step adopts foaming agent BK201.
4. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, described ore grinding step specifically comprises:
To contain the pozzuolite copper mineral is raw ore, and raw ore and lime are joined in the ball mill, and lime adding amount adds 800～1200g by raw ore per ton;
Add water in raw ore in described ball mill and the lime, the liquid-solid ratio of water and raw ore and lime is 1: 1, carries out ore grinding after adding water, and being milled to fineness is 60%-0.074mm～70%-0.074mm, obtains ore pulp.
5. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, described copper is roughly selected step and specifically comprised:
With the described ore pulp that obtains behind the ore grinding in flotation device, under stirring, add collecting agent and the alcohols foaming agent of roughly selecting collecting agent as copper successively, the addition of collecting agent adds 8g～12g by raw ore per ton, the addition of alcohols foaming agent adds 10g～14g by raw ore per ton, stir after 2～4 minutes, carry out air flotation 5～7 minutes, and obtained copper rough concentrate and copper rougher tailings.
6. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, the selected step of described copper specifically comprises:
Copper roughly selected handle the described copper rough concentrate obtain and inflate and obtain low arsenical copper concentrate and copper cleaner tailings after selected 4～6 minutes.
7. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, described arsenic is roughly selected step and specifically comprised:
Copper roughly selected handle the described copper rougher tailings obtain and under stirring, add collecting agent and alcohols foaming agent successively, the addition of collecting agent adds 8g～12g by raw ore per ton, the addition of alcohols foaming agent adds 6g～8g by raw ore per ton, stir and carried out air flotation 5～7 minutes after 2～4 minutes, obtain arsenic and roughly select foam thing and arsenic rougher tailings.
8. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, the selected step of described arsenic specifically comprises:
After described arsenic roughly selected copper cleaner tailings that foam thing and the selected step of copper obtain and mix in ball mill, add lime and carry out ore grinding, being milled to fineness is 85%-0.043mm, obtains ore pulp;
The selected I of arsenic: add collecting agent in the described ore pulp that obtains under stirring, the addition of collecting agent adds 8g～12g by raw ore per ton, stirs and inflates after 2～4 minutes selected 5～7 minutes, obtains the selected I mine tailing of arsenic selected I foam thing and arsenic;
The selected II of arsenic: in the foam thing I that the selected I step of arsenic obtains, add lime and stirred 2～4 minutes, inflated afterwards selected 5～7 minutes, obtain the selected II mine tailing of arsenic selected II foam thing and arsenic;
The selected III of arsenic: the foam thing II that the selected II of step arsenic is obtained inflated selected 5～7 minutes, obtained as the arsenic of high arsenic-and copper-bearing concentrate selected III foam thing and the selected III mine tailing of arsenic.
9. the ore dressing processing method that contains domeykite as claimed in claim 8 is characterized in that, the selected step of described arsenic further comprises:
The selected II mine tailing of arsenic that the selected II step of arsenic is obtained mixes with the described ore pulp that the handled ore deposit step of regrinding of the selected I step of arsenic obtains, and the selected II mine tailing of arsenic that the selected II step of arsenic is obtained is got back in the selected I step of arsenic and handled once more;
The selected III mine tailing of arsenic that the selected III step of arsenic is obtained mixes with the selected I foam of the arsenic thing that the selected II step of the handled arsenic of the selected II step of arsenic obtains, and the selected III mine tailing of arsenic that the selected III step of arsenic is obtained is got back in the selected II step of arsenic and handled once more;
The selected I of arsenic is handled the selected I mine tailing of arsenic that obtains and arsenic scan and handle the arsenic that obtains and scan the foam thing and roughly select the handled copper rougher tailings of step with arsenic and mixes, make selected I mine tailing of arsenic that the selected I processing of arsenic obtains and arsenic scan arsenic that processing obtains and scan the foam thing and get back to arsenic and roughly select in the step and handle once more.
10. the ore dressing processing method that contains domeykite as claimed in claim 2 is characterized in that, described arsenic is scanned step and specifically comprised:
The addition of collecting agent adds 6g～8g by raw ore per ton, and the addition of alcohols foaming agent adds 4g～6g by raw ore per ton.
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| CN104117433A (en) * | 2014-07-23 | 2014-10-29 | 紫金矿业集团股份有限公司 | Method for selecting copper concentrate from copper ore with high sulfur and arsenic content |
| CN106552715A (en) * | 2016-11-02 | 2017-04-05 | 昆明理工大学 | It is a kind of that the method that sphalerite is reclaimed in mine tailing is separated from lead sulfide mixed concentrate |
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| CN107971125A (en) * | 2017-11-30 | 2018-05-01 | 长春黄金研究院 | Improve low-grade high argillization skarns ore copper-cobalt ore molybdenum concntrate rate of recovery method |
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| CN104117433B (en) * | 2014-07-23 | 2016-08-24 | 紫金矿业集团股份有限公司 | The method choosing copper concentrate from the copper mine that sulfur arsenic content is high |
| CN104117433A (en) * | 2014-07-23 | 2014-10-29 | 紫金矿业集团股份有限公司 | Method for selecting copper concentrate from copper ore with high sulfur and arsenic content |
| CN106552715A (en) * | 2016-11-02 | 2017-04-05 | 昆明理工大学 | It is a kind of that the method that sphalerite is reclaimed in mine tailing is separated from lead sulfide mixed concentrate |
| CN107512837A (en) * | 2017-09-11 | 2017-12-26 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | The processing method of the river bottom mud containing heavy metal |
| CN107694741A (en) * | 2017-11-01 | 2018-02-16 | 紫金矿业集团股份有限公司 | A kind of method of copper concentrate arsenic removal |
| CN107971125A (en) * | 2017-11-30 | 2018-05-01 | 长春黄金研究院 | Improve low-grade high argillization skarns ore copper-cobalt ore molybdenum concntrate rate of recovery method |
| CN109569892A (en) * | 2018-12-04 | 2019-04-05 | 林西金易来砷业有限公司 | A kind of composite inhibitor for copper arsenic mineral separating flotation |
| CN112973970A (en) * | 2021-03-02 | 2021-06-18 | 驰宏科技工程股份有限公司 | Method for removing arsenic in lead concentrate |
| CN113019710A (en) * | 2021-03-15 | 2021-06-25 | 中国恩菲工程技术有限公司 | Combined collecting agent and flotation method of sulfide mineral containing micro-fine particles |
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