CN105016525A - Copper-molybdenum ore beneficiation wastewater treatment method - Google Patents
Copper-molybdenum ore beneficiation wastewater treatment method Download PDFInfo
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- CN105016525A CN105016525A CN201510400927.9A CN201510400927A CN105016525A CN 105016525 A CN105016525 A CN 105016525A CN 201510400927 A CN201510400927 A CN 201510400927A CN 105016525 A CN105016525 A CN 105016525A
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Abstract
The invention discloses a copper-molybdenum ore beneficiation wastewater treatment method, which comprises the following steps: clarifying the copper-molybdenum ore beneficiation wastewater to obtain clarified copper-molybdenum ore beneficiation wastewater; mixing the clarified copper-molybdenum ore beneficiation wastewater with the copper-molybdenum ore rough scavenging tailing slurry according to the weight ratio of 0.1-15: 100, and stirring for at least 2min to complete the copper-molybdenum ore beneficiation wastewater treatment. The method can effectively eliminate the influence of various ions in the copper-molybdenum ore beneficiation wastewater on copper-molybdenum flotation, and has the advantages of simple process, convenient operation and low cost.
Description
Technical field
The present invention relates to copper-molybdenum technical field of beneficiation, particularly relate to a kind of copper-molybdenum beneficiation wastewater treatment method.
Background technology
At present, copper-molybdenum ore-dressing technique is first carry out the mixed choosing of copper molybdenum mostly, then carries out copper-cobalt ore.A large amount of beneficiation wastewater can be produced in copper-cobalt ore, if arranged by these beneficiation wastewaters, then not only can cause the waste of water resources outward, and severe contamination can be brought to surrounding environment.
Along with the raising of environmental requirement, copper-molybdenum beneficiation wastewater generally can not be arranged outward, can only be back to use in beneficiation flowsheet; But, containing different kinds of ions in copper-molybdenum beneficiation wastewater, if by its direct reuse in beneficiation flowsheet, flotation atmosphere can be worsened, reduce valuable mineral flotation recovery rate, therefore in prior art, be badly in need of a kind of economically viable copper-molybdenum beneficiation wastewater treatment method.
Summary of the invention
For above-mentioned weak point of the prior art, the invention provides a kind of copper-molybdenum beneficiation wastewater treatment method, effectively can not only eliminate the impact of various ion pair copper molybdenum flotation in copper-molybdenum beneficiation wastewater, and technique is simple, easy to operate, with low cost.
The object of the invention is to be achieved through the following technical solutions:
A kind of copper-molybdenum beneficiation wastewater treatment method, comprises the steps:
Steps A, carries out clarifying treatment to copper-molybdenum beneficiation wastewater, obtains clarification copper-molybdenum beneficiation wastewater;
Step B, selects Tailings Slurry to mix according to the ratio of weight ratio 0.1 ~ 15:100 with copper-molybdenum coarse scan clarification copper-molybdenum beneficiation wastewater, and stirs at least 2min, namely complete the process of copper-molybdenum beneficiation wastewater.
Preferably, in stepb, churning time is 2 ~ 6min.
Preferably, also comprise: by the copper-molybdenum beneficiation wastewater direct reuse after step B process in copper-molybdenum flotation flowsheet.
Preferably, described copper-molybdenum flotation flowsheet comprises the mixed choosing of copper-molybdenum; Dense press filtration process is carried out to the copper-molybdenum beneficiation wastewater after step B process, then is back to use that copper-molybdenum is mixed to be chosen.
As seen from the above technical solution provided by the invention, clarification copper-molybdenum beneficiation wastewater selects Tailings Slurry to mix according to the ratio of weight ratio 0.1 ~ 15:100 with copper-molybdenum coarse scan by the copper-molybdenum beneficiation wastewater treatment method that the embodiment of the present invention provides, thus makes the S in clarification copper-molybdenum beneficiation wastewater
2-, SiO
3 2-the Ca in Tailings Slurry is selected Deng acid ion and copper-molybdenum coarse scan
2+a series of physics and chemistry effect occurs, and produces precipitation, this effectively reduces S in copper-molybdenum beneficiation wastewater
2-, SiO
3 2-deng the content of acid ion, eliminate the impact of these acid ions on the flotation of copper molybdenum, thus enable the copper-molybdenum beneficiation wastewater complete-reclaiming after process in copper-molybdenum flotation flowsheet, and can not mineral processing index be affected.
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 behavior, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is application copper-molybdenum beneficiation wastewater treatment method schematic diagram provided by the present invention.
Fig. 2 carries out the schematic flow sheet that copper-molybdenum roughly selects performance testing in embodiment one.
Embodiment
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.
Below copper-molybdenum beneficiation wastewater treatment method provided by the present invention is described in detail.
A kind of copper-molybdenum beneficiation wastewater treatment method, comprises the steps:
Steps A, carries out clarifying treatment to copper-molybdenum beneficiation wastewater, obtains clarification copper-molybdenum beneficiation wastewater.
Step B, selects Tailings Slurry to mix according to the ratio of weight ratio 0.1 ~ 15:100 with copper-molybdenum coarse scan clarification copper-molybdenum beneficiation wastewater, and stirs at least 2min, namely complete the process of copper-molybdenum beneficiation wastewater.
Wherein, clarification copper-molybdenum beneficiation wastewater selects Tailings Slurry preferably to mix according to the ratio of weight ratio 0.1 ~ 15:100 with copper-molybdenum coarse scan, if this is because the consumption of clarification copper-molybdenum beneficiation wastewater is too much, so the Ca in Tailings Slurry is selected in copper-molybdenum coarse scan
2+number can cannot meet S in clarification copper-molybdenum beneficiation wastewater
2-, SiO
3 2-deng the demand of acid ion.Churning time is preferably 2 ~ 6min, if churning time is less than 2min, then clarifies the S in copper-molybdenum beneficiation wastewater
2-, SiO
3 2-the Ca in Tailings Slurry cannot be selected with copper-molybdenum coarse scan Deng acid ion
2+abundant reaction, and 2 ~ 6min just can make the S in clarification copper-molybdenum beneficiation wastewater
2-, SiO
3 2-the Ca in Tailings Slurry is selected Deng acid ion and copper-molybdenum coarse scan
2+abundant reaction, so there is no necessity and expends long churning time.As shown in Figure 1, copper-molybdenum beneficiation wastewater after completing steps B process can direct reuse in copper-molybdenum flotation flowsheet, such as: the copper-molybdenum beneficiation wastewater after completing steps B process can be put in back pool after dense press filtration process, and carrying out using as ore grinding liquid when copper-molybdenum is mixed to be selected.
Particularly, the principle of work of this copper-molybdenum beneficiation wastewater treatment method is as follows: main containing Cu in copper-molybdenum beneficiation wastewater
2+, S
2-, SiO
3 2-plasma, wherein can cause the mainly S that flotation atmosphere worsens
2-, SiO
3 2-deng acid ion, and copper-molybdenum coarse scan is selected in Tailings Slurry containing Ca
2+, therefore after selecting Tailings Slurry to be mixed in proportion clarification copper-molybdenum beneficiation wastewater and copper-molybdenum coarse scan, the S in clarification copper-molybdenum beneficiation wastewater
2-, SiO
3 2-the Ca in Tailings Slurry can be selected with copper-molybdenum coarse scan Deng acid ion
2+a series of physics and chemistry effect occurs, and produce precipitation, this can effectively reduce S in copper-molybdenum beneficiation wastewater
2-, SiO
3 2-deng the content of acid ion, eliminate the impact of these acid ions on the flotation of copper molybdenum, thus enable the copper-molybdenum beneficiation wastewater complete-reclaiming after process roughly select operation to copper-molybdenum, scan in the copper-molybdenum flotation flowsheets such as operation, and can not mineral processing index be affected.Because this copper-molybdenum beneficiation wastewater treatment method does not add additional agent, be only use the product (namely Tailings Slurry is selected in copper-molybdenum coarse scan) in copper-molybdenum flotation flowsheet, therefore this copper-molybdenum beneficiation wastewater treatment method is with low cost.
As can be seen here, the embodiment of the present invention effectively can not only eliminate the impact of various ion pair copper molybdenum flotation in copper-molybdenum beneficiation wastewater, and technique is simple, easy to operate, with low cost.
In order to the technique effect more clearly showing technical scheme provided by the present invention and produce, also by reference to the accompanying drawings the copper-molybdenum beneficiation wastewater treatment method that the embodiment of the present invention provides is described in detail with a few specific embodiment below.
Embodiment one
As shown in Figure 2, the copper-molybdenum raw ore getting six parts of equivalent carries out six copper-molybdenums respectively and roughly selects performance testing; Lime (consumption of lime is that copper-molybdenum raw ore per ton adds 1000 grams of lime) is added respectively in every part of copper-molybdenum raw ore, and adopting the ore grinding liquid in following table 1 to carry out ore grinding respectively, the ore grinding liquid that any two parts of copper-molybdenum raw ores adopt is all not identical.For every part of copper-molybdenum, when the copper-molybdenum particle that granularity is not more than 0.074mm accounts for 75% of every part of copper-molybdenum gross weight, stop ore grinding, and respectively to adding butyl xanthate (consumption of butyl xanthate is that copper-molybdenum raw ore per ton adds 150 grams of butyl xanthates), butyl ammonium aerofloat (consumption of butyl ammonium aerofloat is that copper-molybdenum raw ore per ton adds 20 grams of butyl ammonium aerofloats) and No. 2 oil (No. 2 oily consumption be that copper-molybdenum raw ore per ton adds 20 grams of No. 2 oil) in the copper-molybdenum after ore grinding, then stir 2min; And then the copper-molybdenum carrying out 5min roughly selects operation, copper-molybdenum rough concentrate and copper-molybdenum rougher tailings can be obtained.
Table 1:
| Test number | The ore grinding liquid used |
| First time test | Whole employing clear water |
| Second time test | Tailings Slurry is selected in the coarse scan of whole employing copper-molybdenum |
| Third time test | Whole employing clarification copper-molybdenum beneficiation wastewater and copper-molybdenum coarse scan select the weight ratio of Tailings Slurry to be 5:100 |
| 4th test | Whole employing clarification copper-molybdenum beneficiation wastewater and copper-molybdenum coarse scan select the weight ratio of Tailings Slurry to be 10:100 |
| 5th test | Whole employing clarification copper-molybdenum beneficiation wastewater and copper-molybdenum coarse scan select the weight ratio of Tailings Slurry to be 15:100 |
| 6th test | The undressed copper-molybdenum beneficiation wastewater of whole employing |
The experimental result of these six times tests can be as shown in table 2 below:
Table 2:
It is known that data in his-and-hers watches 2 carry out contrast: in the 6th test, no matter grade and the rate of recovery of copper, or the grade of molybdenum and the rate of recovery, all test much lower several times than all the other, this illustrates that undressed copper-molybdenum beneficiation wastewater direct reuse can produce very large negative impact to copper-molybdenum flotation flowsheet.And select Tailings Slurry respectively according to 5:100 at clarification copper-molybdenum beneficiation wastewater and copper-molybdenum coarse scan, when the weight ratio of 10:100 and 15:100 mixes, no matter grade and the rate of recovery of copper, or the grade of molybdenum and the rate of recovery, almost all with all adopt copper-molybdenum coarse scan to select during Tailings Slurry there is no difference, and just than more lower slightly during whole employing clear water, as can be seen here, copper-molybdenum beneficiation wastewater after the copper-molybdenum beneficiation wastewater treatment method process provided according to the embodiment of the present invention has an impact to the flotation of copper molybdenum hardly, therefore, it is possible to direct reuse roughly selects operation to copper-molybdenum completely, scan in the copper-molybdenum flotation flowsheets such as operation.
As fully visible, the embodiment of the present invention effectively can not only eliminate the impact of various ion pair copper molybdenum flotation in copper-molybdenum beneficiation wastewater, and technique is simple, easy to operate, with low cost.
The above; be only the present invention's preferably embodiment, 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 (4)
1. a copper-molybdenum beneficiation wastewater treatment method, is characterized in that, comprises the steps:
Steps A, carries out clarifying treatment to copper-molybdenum beneficiation wastewater, obtains clarification copper-molybdenum beneficiation wastewater;
Step B, selects Tailings Slurry to mix according to the ratio of weight ratio 0.1 ~ 15:100 with copper-molybdenum coarse scan clarification copper-molybdenum beneficiation wastewater, and stirs at least 2min, namely complete the process of copper-molybdenum beneficiation wastewater.
2. copper-molybdenum beneficiation wastewater treatment method according to claim 1, is characterized in that, in stepb, churning time is 2 ~ 6min.
3. copper-molybdenum beneficiation wastewater treatment method according to claim 1 and 2, is characterized in that, also comprise: by the copper-molybdenum beneficiation wastewater direct reuse after step B process in copper-molybdenum flotation flowsheet.
4. copper-molybdenum beneficiation wastewater treatment method according to claim 3, is characterized in that, described copper-molybdenum flotation flowsheet comprises the mixed choosing of copper-molybdenum; Dense press filtration process is carried out to the copper-molybdenum beneficiation wastewater after step B process, then is back to use that copper-molybdenum is mixed to be chosen.
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| CN107570318A (en) * | 2017-09-13 | 2018-01-12 | 北京矿冶研究总院 | Beneficiation method for recovering copper from molybdenum dressing tailings |
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