CN103861743B - Method and reagent for directly recycling polymetallic sulfide flotation backwater - Google Patents
Method and reagent for directly recycling polymetallic sulfide flotation backwater Download PDFInfo
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- CN103861743B CN103861743B CN201210545212.9A CN201210545212A CN103861743B CN 103861743 B CN103861743 B CN 103861743B CN 201210545212 A CN201210545212 A CN 201210545212A CN 103861743 B CN103861743 B CN 103861743B
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Abstract
The invention discloses a method and a reagent for directly recycling polymetallic sulphide ore flotation backwater, which are used for carrying out flotation on polymetallic sulphide ores by utilizing the flotation backwater; the flotation comprises ore pulp preparation and specific flotation operation, and the specific flotation operation comprises a roughing process; in the process of preparing the ore pulp, preparing the ore into the ore pulp by utilizing the flotation backwater of the polymetallic sulphide ore; before the roughing process of the specific flotation operation is carried out, a medicament for realizing direct recycling of the polymetallic sulphide ore flotation backwater is added into the ore pulp prepared by utilizing the polymetallic sulphide ore flotation backwater, so that the polymetallic sulphide ore flotation backwater is directly recycled. The embodiment of the invention not only can directly recycle the return water for flotation separation of the nonferrous multi-metal sulfide ore without any treatment, but also can ensure that the obtained useful mineral concentrate has higher recovery rate and qualified grade for sale.
Description
Technical field
The invention belongs to technical field of beneficiation, particularly relate to a kind of method and the medicament that realize multi-metal sulfide flotation backwater direct reuse.Described multi-metal sulfide refers to the Nonferrous Metals sulphide ores such as copper-sulphide ores, copper sulfide sulphur ore deposit, copper sulfide lead ore, copper sulfide zinc ore, copper sulfide Pb-Zn deposits, lead-zinc sulfide ore, vulcanized lead zinc sulphur ore deposit or copper sulfide molybdenum ore, but is not limited in this.
Technical background
Flotation is one of technique of preparing be most widely used in ore dressing field.In the prior art, flotation can comprise prepares ore pulp and concrete flotation operation two parts, and the overall process of concrete flotation operation can comprise roughly selects operation, selected operation and scans operation; As shown in Figure 1, in prior art, the overall process of flotation operation is as follows: ore pulp is divided into rough concentrate and rougher tailings two parts after roughly selecting operation, in rougher tailings, major part is grade lower than the mineral of raw ore and gangue, and rough concentrate is the mineral of grade higher than raw ore, but generally still do not reach the grade requirement of qualified concentrate containing; Roughly select the isolated rough concentrate of operation after selected operation, obtain qualified concentrate containing and the grade chats lower than qualified concentrate containing, in order to meet the grade requirement of qualified concentrate containing, sometimes need to carry out rough concentrate multistage selected, such as: the one-level shown in Fig. 1 is selected, secondary is selected ..., N level is selected; Roughly select the isolated rougher tailings of operation usually directly not discard, but from rougher tailings, reclaim the relatively high chats of grade by scanning operation, in order to improve the rate of recovery that Gold in Ores belongs to, sometimes need to carry out multistage scanning to rougher tailings, such as: the one-level shown in Fig. 1 is scanned, secondary is scanned ..., N level scans.Roughly selecting operation, selected operation and scanning in operation, in order to make being separated compared with high-grade mineral and more low-grade mineral of each link, the feature of ore handled by each link is usually needed to add the floating agents such as different adjusting agents, inhibitor, collecting agent and foaming agent.
All the time, Nonferrous Metals sulphide ore mostly adopts diffeential floatation or bulk flotation to carry out ore dressing.As shown in Figure 2, for the Nonferrous Metals sulphide ore containing metal element A, B, C, the disposed of in its entirety flow process of diffeential floatation in prior art is as follows: Nonferrous Metals sulphide ore ABC is prepared into ABC mixed ore pulp after the ore grinding process that adds water (and/or grinding after and water mixed processing); ABC mixed ore pulp obtains A concentrate pulp and BC mixed ore pulp after the process of A flotation operation, and A concentrate pulp obtains A concentrate and flotation backwater again after dense filtration; BC mixed ore pulp obtains B concentrate pulp and C mixed ore pulp after the process of B flotation operation, and B concentrate pulp obtains B concentrate and flotation backwater again after dense filtration; C mixed ore pulp obtains C concentrate pulp and mine tailing ore pulp after the process of C flotation operation, and C concentrate pulp obtains C concentrate and flotation backwater again after dense filtration; Mine tailing ore pulp is put into Tailings Dam or is directly put into Tailings Dam after concentrator process, and mine tailing ore pulp all can produce flotation backwater in the process of concentrator process and in the process of Tailings Dam placement.As shown in Figure 3, for the Nonferrous Metals sulphide ore containing metal element A, B, C, the disposed of in its entirety flow process of bulk flotation in prior art is as follows: Nonferrous Metals sulphide ore ABC is prepared into ABC mixed ore pulp after the ore grinding process that adds water (and/or grinding after and water mixed processing); ABC mixed ore pulp obtains AB mixed ore pulp and C mixed ore pulp after the process of AB flotation operation, AB mixed ore pulp obtains A concentrate pulp and B concentrate pulp again after AB separating flotation operation process, and C mixed ore pulp obtains C concentrate pulp and mine tailing ore pulp again after the process of C flotation operation; A concentrate pulp obtains A concentrate and flotation backwater after dense filtration; B concentrate pulp obtains B concentrate and flotation backwater after dense filtration; C concentrate pulp obtains C concentrate and flotation backwater after dense filtration; Mine tailing ore pulp is put into Tailings Dam or is directly put into Tailings Dam after concentrator process, and mine tailing ore pulp all can produce flotation backwater in the process of concentrator process and in the process of Tailings Dam placement.In the industrial production, the AB flotation operation of the A flotation operation of above-mentioned diffeential floatation, B flotation operation and C flotation operation and above-mentioned bulk flotation, the operation of AB separating flotation and C flotation operation all can adopt roughly selecting operation, selected operation and scanning operation and processing of concrete flotation operation in prior art.
As can be seen from selective flotation flowsheet and the bulk flotation flow process of above-mentioned Nonferrous Metals sulphide ore, in order to avoid ore pulp water has a negative impact to floating agent, clear water can only be used in the prior art to prepare ore pulp, these undoubtedly can the freshwater resources of at substantial; Simultaneously, owing to needing to add different floating agents according to the feature of ore in floatation process, therefore can contain each metal ion species of a large amount of ore dressing residual pharmacies and institute's floatable minerals in flotation backwater, this just makes flotation backwater to recycle, and can only arrange directly outward.
Along with the worsening shortages of water resource and the enhancing gradually of environmental consciousness, people start trial and utilize flotation backwater to prepare ore pulp.Existing flotation backwater circulation Land use systems mainly contains two kinds: one utilizes existing sewage purification processing system to purify flotation backwater, and the water after recycling purification prepares ore pulp; Another kind is that ore pulp is prepared in the back-flowing and branched reuse of flotation adding floating agent few.But these two kinds of modes all can not overcome the adverse effect of various complicated ingredient in flotation backwater, and therefore the rate of recovery of valuable mineral is very low, the valuable mineral concentrate grade obtained is very low, and cannot reach can for the qualified grade of selling.
Summary of the invention
The invention provides a kind of method and the medicament that realize multi-metal sulfide flotation backwater direct reuse, can not only make backwater when without any process, direct circulation is used in the FLOTATION SEPARATION of Nonferrous Metals sulphide ore, and makes obtained valuable mineral concentrate have the higher rate of recovery and can supply the qualified grade of sale.
The object of the invention is to be achieved through the following technical solutions:
Realizing a method for multi-metal sulfide flotation backwater direct reuse, for utilizing flotation backwater, flotation being carried out to multi-metal sulfide; Described flotation comprises prepares ore pulp and concrete flotation operation, and described concrete flotation operation comprises roughly selects operation;
In the process preparing ore pulp, utilize multi-metal sulfide flotation backwater that ore is prepared into ore pulp;
Carry out concrete flotation operation roughly select operation before, add in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare and realize the medicament of multi-metal sulfide flotation backwater direct reuse, thus realize multi-metal sulfide flotation backwater direct reuse;
Wherein, the medicament realizing multi-metal sulfide flotation backwater direct reuse is mixed by the raw material of following weight parts:
Humate 90 ~ 100 parts,
Lignosulfonates 0 ~ 5 part,
Calgon 0 ~ 5 part;
The medicament realizing multi-metal sulfide flotation backwater direct reuse added in ore pulp is 0.1 ~ 1.2:1000 with the weight ratio preparing ore pulp ore used.
Preferably, when there is multiple concrete flotation operation in the flotation carried out multi-metal sulfide, roughly select before operation carries out at first concrete flotation operation, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse.
Preferably, when there is multiple concrete flotation operation in the flotation carried out multi-metal sulfide, roughly select before operation carries out at least two concrete flotation operations, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse.
Preferably, it is the aqueous solution of 1% ~ 10% that the medicament realizing multi-metal sulfide flotation backwater direct reuse is first mixed with quality than concentration, then adds in ore pulp.
Preferably, corresponding concrete flotation operation comprises selected operation, and/or, scan operation;
Before selected operation is carried out, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse;
And/or,
Before scanning operation and carrying out, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse.
Preferably, utilize multi-metal sulfide flotation backwater that ore is prepared into ore pulp accordingly to comprise: described ore pulp mass concentration is 10% ~ 48%.
Preferably, utilize multi-metal sulfide flotation backwater ore to be prepared into ore pulp accordingly and comprise following at least one item:
Ore being prepared into the water that ore pulp uses is all multi-metal sulfide flotation backwater;
Or,
Ore being prepared into water that ore pulp uses for clear water and multi-metal sulfide flotation backwater mixes in any proportion;
Or,
The water that the whole direct reuse of flotation backwater that multi-metal sulfide carries out flotation uses for ore being prepared into ore pulp.
Preferably, corresponding multi-metal sulfide comprises at least one in copper-sulphide ores, copper sulfide sulphur ore deposit, copper sulfide lead ore, copper sulfide zinc ore, copper sulfide Pb-Zn deposits, lead-zinc sulfide ore, vulcanized lead zinc sulphur ore deposit or copper sulfide molybdenum ore.
Realize a medicament for multi-metal sulfide flotation backwater direct reuse, mixed by the raw material of following weight parts:
Humate 90 ~ 100 parts,
Lignosulfonates 0 ~ 5 part,
Calgon 0 ~ 5 part.
Preferably, corresponding humate is at least one in sodium humate, humic acid potassium or ammonium humate;
Corresponding lignosulfonates are at least one in ammonium lignosulphonate or sodium lignin sulfonate.
The technical scheme provided as can be seen from the invention described above embodiment, the medicament of what the embodiment of the present invention provided realize multi-metal sulfide flotation backwater direct reuse by mass fraction be the humate of 90 ~ 100 numbers, the calgon of the lignosulfonates of 0 ~ 5 number and 0 ~ 5 number mixes; When utilizing flotation backwater to carry out flotation to Nonferrous Metals sulphide ore, before roughly selecting operation and carrying out, the medicament that this realizes multi-metal sulfide flotation backwater direct reuse is added in the ore pulp of Nonferrous Metals sulphide ore, thus the various complicated ingredients in flotation backwater are inhibited, the flotation operation of Nonferrous Metals sulphide ore can normally carry out, and can ensure that obtained valuable mineral concentrate has the higher rate of recovery and can supply the qualified grade of sale, and then saved freshwater resources, avoid the environmental pollution that flotation backwater brings.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall process schematic diagram of flotation operation in prior art;
Fig. 2 is the schematic flow sheet of the diffeential floatation of Nonferrous Metals sulphide ore in prior art;
Fig. 3 is the schematic flow sheet of the bulk flotation of Nonferrous Metals sulphide ore in prior art;
Fig. 4 is the overall process schematic diagram of the flotation operation of the embodiment of the present invention;
Fig. 5 is the schematic flow sheet of the diffeential floatation of the Nonferrous Metals sulphide ore of the embodiment of the present invention;
Fig. 6 is the schematic flow sheet of the bulk flotation of the Nonferrous Metals sulphide ore of the embodiment of the present invention;
Fig. 7 is the schematic flow sheet that in prior art, copper sulfide Pb-Zn deposits utilizes clear water ore dressing;
Fig. 8 is the schematic flow sheet that in prior art, copper sulfide Pb-Zn deposits utilizes the ore dressing of flotation backwater;
Fig. 9 is the schematic flow sheet that application copper sulfide Pb-Zn deposits of the present invention utilizes the ore dressing of flotation backwater;
Figure 10 is the schematic flow sheet that in prior art, copper sulfide molybdenum ore utilizes clear water ore dressing;
Figure 11 is the schematic flow sheet that in prior art, copper sulfide molybdenum ore utilizes the ore dressing of flotation backwater;
Figure 12 is the schematic flow sheet that application copper sulfide molybdenum ore of the present invention utilizes the ore dressing of flotation backwater.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described, be understandable that the technical scheme in the embodiment of the present invention, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
First it should be noted that, provided by the present invention realize multi-metal sulfide flotation backwater direct reuse method and medicament go for the Nonferrous Metals sulphide ores such as copper-sulphide ores, copper sulfide sulphur ore deposit, copper sulfide lead ore, copper sulfide zinc ore, copper sulfide Pb-Zn deposits, lead-zinc sulfide ore, vulcanized lead zinc sulphur ore deposit or copper sulfide molybdenum ore, but be not limited in this.Only be described for copper sulfide Pb-Zn deposits and copper sulfide molybdenum ore in present specification, but this is not construed as limiting the invention.
The method realizing multi-metal sulfide flotation backwater direct reuse provided the embodiment of the present invention respectively below in conjunction with accompanying drawing and medicament are described in detail.
(1) medicament of multi-metal sulfide flotation backwater direct reuse is realized
Realizing a medicament for multi-metal sulfide flotation backwater direct reuse, is that raw material mixes by humate, lignosulfonates and calgon; The parts by weight of each component can be as shown in table 1 below:
Table 1:
| Most wide region | Preferable range | Optimum value |
| Humate | 90 ~ 100 parts | 96 ~ 98 parts | 96 parts |
| Lignosulfonates | 0 ~ 5 part | 1 ~ 2 part | 2 parts |
| Calgon | 0 ~ 5 part | 1 ~ 2 part | 2 parts |
Wherein, described lignosulfonates can adopt any one lignosulfonates in prior art, and existing any several lignosulfonates also can be adopted to mix, but preferably adopt at least one in ammonium lignosulphonate or sodium lignin sulfonate.Described humate can adopt any one humate of the prior art, existing any several humate also can be adopted to mix, but preferably adopt at least one in sodium humate, humic acid potassium or ammonium humate.
Particularly, this medicament realizing multi-metal sulfide flotation backwater direct reuse is when reality uses, preferably be mixed with the aqueous solution that Solute mass fraction is 1% ~ 10%, this can conveniently accurately control medicament use amount, thus enables medicament add in ore pulp continuously, equably.
It should be noted that, the usual state of humate, lignosulfonates and calgon is all solid-state, solid use amount (i.e. the weight of solute) before the use amount of the use amount of the humate provided in present specification, the use amount of lignosulfonates and calgon all refers to and is not mixed with solution, does not refer to the use amount of solution.
Visible, this realizes in the constituent of the medicament of multi-metal sulfide flotation backwater direct reuse, humate is in occupation of sizable proportion, due to the wide material sources of humate, cheap, nontoxic pollution-free and have no adverse effect to flotation flowsheet, therefore this medicament realizing multi-metal sulfide flotation backwater direct reuse is not only applicable to the flotation of multi mineral, and with low cost, free from environmental pollution.
(2) method of multi-metal sulfide flotation backwater direct reuse is realized
As shown in Figures 2 to 4, realizing the method for multi-metal sulfide flotation backwater direct reuse, for utilizing flotation backwater, flotation being carried out to multi-metal sulfide; Described flotation comprises prepares ore pulp and concrete flotation operation, and described concrete flotation operation comprises roughly selects operation; Its concrete treatment step is as follows:
Step one: prepare in ore pulp process in existing multi-metal sulfide flotation, use clear water that ore is prepared into ore pulp no longer completely, but ore is prepared into ore pulp by the flotation backwater utilizing multi-metal sulfide flotation to produce;
Step 2: preparing after ore pulp completes, existing multi-metal sulfide flotation enters into the concrete flotation operation stage; Carry out concrete flotation operation roughly select operation before, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, first add the medicament realizing multi-metal sulfide flotation backwater direct reuse, thus achieve multi-metal sulfide flotation backwater direct reuse.
Wherein, the medicament realizing multi-metal sulfide flotation backwater direct reuse used in above-mentioned two concrete treatment steps is the medicament realizing multi-metal sulfide flotation backwater direct reuse described in technique scheme (), therefore repeats no more herein.
Particularly, two treatment steps realizing the method for multi-metal sulfide flotation backwater direct reuse can comprise at least one item in following specific embodiments:
(1) ore is prepared into ore pulp by the flotation backwater utilizing multi-metal sulfide flotation to produce: the mass concentration of this ore pulp is preferably 10% ~ 48%.
(2) ore is prepared into ore pulp by the flotation backwater utilizing multi-metal sulfide flotation to produce: multi-metal sulfide carries out the flotation backwater of flotation can the only water that uses for ore being prepared into ore pulp of some direct reuse, but preferably whole water of using for ore being prepared into ore pulp of direct reuse, so that farthest saving water resource, and flotation backwater contaminated environment can be avoided.Be described for the diffeential floatation of multi-metal sulfide, in the prior art, as shown in Figure 2, the flotation backwater of diffeential floatation cannot, by reuse, can only utilize clear water that ore is prepared into ore pulp; And after applying technical solutions according to the invention, as shown in Figure 5, the flotation backwater of diffeential floatation by whole direct reuse for ore is prepared into ore pulp the water that uses.Be described for the bulk flotation of multi-metal sulfide, in the prior art, as shown in Figure 3, the flotation backwater of bulk flotation cannot, by reuse, can only utilize clear water that ore is prepared into ore pulp again; And after applying technical scheme of the present invention, as shown in Figure 6, the flotation backwater of bulk flotation by whole direct reuse for ore is prepared into ore pulp the water that uses.
(3) ore is prepared into ore pulp by the flotation backwater utilizing multi-metal sulfide flotation to produce: ore being prepared into the water that ore pulp uses can mix in any proportion for clear water and multi-metal sulfide flotation backwater, but preferably all adopt multi-metal sulfide flotation backwater in actual applications, so that saving water resource better.
(4) use amount of the medicament of multi-metal sulfide flotation backwater direct reuse is realized: the medicament realizing multi-metal sulfide flotation backwater direct reuse added in ore pulp is 0.1 ~ 1.2:1000 with the weight ratio preparing ore pulp ore used; It should be noted that, the use amount of this medicament refers to the use amount of this medicament solid, but in actual use, needing first these solid chemicals to be mixed with quality is the aqueous solution of 1% ~ 10% than concentration, then adds in ore pulp.
(5) the interpolation opportunity of the medicament of multi-metal sulfide flotation backwater direct reuse is realized:
1. this medicament realizing multi-metal sulfide flotation backwater direct reuse should add in ore pulp roughly selecting before operation is carried out of concrete flotation operation;
2., when the flotation carried out multi-metal sulfide exists multiple concrete flotation operation, this medicament realizing multi-metal sulfide flotation backwater direct reuse preferably adds in ore pulp roughly selecting before operation is carried out of first concrete flotation operation;
3. when the flotation carried out multi-metal sulfide exists multiple concrete flotation operation, except first concrete flotation operation roughly select operation carry out before except, can also carry out in forward direction ore pulp, adding the medicament that this realizes multi-metal sulfide flotation backwater direct reuse in the operation of roughly selecting of any one or several concrete flotation operation;
4. when concrete flotation operation also comprises selected operation and/or scans operation, in selected operation and/or scan before operation is carried out can add the medicament that this realizes multi-metal sulfide flotation backwater direct reuse in ore pulp
It should be noted that herein, floating agent of the prior art be all enter roughly select operation, enter selected operation or enter and scan operation time add in ore pulp, the medicament realizing multi-metal sulfide flotation backwater direct reuse provided by the present invention needs to add in ore pulp before these floating agents of interpolation, is therefore described as " before roughly selecting operation and carrying out " in present specification, " before selected operation is carried out " and " before scanning operation and carrying out " adds the medicament that this realizes multi-metal sulfide flotation backwater direct reuse in ore pulp.
Further, when to adding after this realizes the medicament of multi-metal sulfide flotation backwater direct reuse in ore pulp, preferably by flowsheet of slurry agitation 2 ~ 6 minutes, thus the diffusion velocity of medicament in ore pulp can be accelerated.
In order to more clearly show technical scheme provided by the present invention, for copper sulfide Pb-Zn deposits and copper sulfide molybdenum ore, the method realizing multi-metal sulfide flotation backwater direct reuse provided by the present invention is described in detail below.
Embodiment one
As shown in Figure 7 to 9, when other conditions are identical, carry out one group of contrast test for copper sulfide Pb-Zn deposits:
Test A1: as shown in Figure 7, test A1 is the handling process that in prior art, copper sulfide Pb-Zn deposits utilizes clear water ore dressing.
Test A2: as shown in Figure 8, test A2 is the handling process that in prior art, copper sulfide Pb-Zn deposits utilizes the ore dressing of flotation backwater; This test utilizes flotation backwater that ore is made ore pulp, but do not add any medicament processed flotation backwater.
Test A3: as shown in Figure 9, test A3 are the handling process that application copper sulfide Pb-Zn deposits of the present invention utilizes the ore dressing of flotation backwater; This test utilizes flotation backwater that ore is made ore pulp, and before carrying out roughly selecting operation, with the addition of the medicament realizing multi-metal sulfide flotation backwater direct reuse provided by the present invention in ore pulp.
The result of the test of this group contrast test can be as shown in table 2 below:
Table 2:
Data as can be seen from table 2:
Test A1 in, copper and Pb-Zn separation good;
In test A2, the inferior separating effect of copper and plumbous zinc, follow-up being difficult to obtains lead concentrate;
In test A3, the separating effect of copper and plumbous zinc can reach the good separation effect under clear water state.
As can be seen here, the elimination of medicament to the residue beneficiation reagent in flotation backwater and each metal ion species realizing multi-metal sulfide flotation backwater direct reuse provided by the present invention has positive effect, therefore, it is possible to make follow-up flotation obtain qualified copper concentrate, lead concentrate and zinc concentrate, and there is the higher rate of recovery.
Embodiment two
As shown in Figure 10 to Figure 12, when other conditions are identical, carry out one group of contrast test for copper sulfide molybdenum ore:
Test B1: as shown in Figure 10, test B1 is the handling process that in prior art, copper sulfide molybdenum ore utilizes clear water ore dressing.
Test B2: as shown in figure 11, test B2 is the handling process that in prior art, copper sulfide molybdenum ore utilizes the ore dressing of flotation backwater; This test utilizes flotation backwater that ore is made ore pulp, but do not add any medicament processed flotation backwater.
Test B3: as shown in figure 12, test B3 are the handling process that application copper sulfide molybdenum ore of the present invention utilizes the ore dressing of flotation backwater; This test utilizes flotation backwater that ore is made ore pulp, and before carrying out roughly selecting operation, with the addition of the medicament realizing multi-metal sulfide flotation backwater direct reuse provided by the present invention in ore pulp.
The result of the test of this group contrast test can be as shown in table 3 below:
Table 3:
Data as can be seen from table 3:
In test B1, copper molybdenum roughly selects the copper molybdenum rough concentrate obtaining grade 4.33%, follow-up selectedly can obtain the copper concentrate that copper grade is 21%, containing molybdenum 0.35% in copper concentrate;
In test B2, copper molybdenum rough concentrate productive rate is very large, copper grade only 1.41%, the follow-up selected copper concentrate that can not obtain qualified grade;
In test B3, the copper molybdenum rough concentrate obtained, with close when adopting clear water, follow-up selectedly can obtain the copper concentrate that copper grade is 22%, containing molybdenum 0.34% in copper concentrate.
As can be seen here, the elimination of medicament to the residue beneficiation reagent in flotation backwater and each metal ion species realizing multi-metal sulfide flotation backwater direct reuse provided by the present invention has positive effect, therefore, it is possible to make follow-up flotation obtain qualified copper concentrate and molybdenum concntrate, and there is the higher rate of recovery.
The method of multi-metal sulfide flotation backwater direct reuse that realizes provided to make the embodiment of the present invention and the technical scheme of medicament and technique effect more outstanding, enumerate one group of embodiment below and carry out contrasting and be described in conjunction with respective drawings.
Practical Project technical em-bodiments I
Certain copper sulfide Pb-Zn deposits, in raw ore, copper grade is 0.62%, plumbous grade is 0.85%, zinc grade is 9.10%, flotation is carried out as mill water using plumbum-zinc vulcanizing mine flotation backwater, do not adding the medicament realizing multi-metal sulfide flotation backwater direct reuse of the present invention, when not taking other to process yet.Trimestral production leadtime data are as follows: the grade of gained copper concentrate is 14.0%, copper recovery is 43.0%, and the grade of lead concentrate is 13.0%, lead recovery is 30.0%, and the grade of zinc concentrate is 35.0%, zinc recovery 74.0%.
Practical Project comparative example I ˊ
Certain copper sulfide Pb-Zn deposits, in raw ore, copper grade is 0.61%, plumbous grade is 0.81%, zinc grade is 8.92%, carry out flotation using plumbum-zinc vulcanizing mine flotation backwater as mill water, and before roughly selecting operation, with the addition of the medicament realizing multi-metal sulfide flotation backwater direct reuse of the present invention.The production leadtime data of six months are as follows: the grade of gained copper concentrate is 18.0%, copper recovery is 65.0%, and the grade 50.0% of lead concentrate, lead recovery are 60.0%, the grade 45.0% of zinc concentrate, zinc recovery 85.0%.
As can be seen here, the enforcement of the embodiment of the present invention can not only make backwater when without any process, direct circulation is used in the FLOTATION SEPARATION of Nonferrous Metals sulphide ore, and makes obtained valuable mineral concentrate have the higher rate of recovery and can supply the qualified grade of sale.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. realizing a method for multi-metal sulfide flotation backwater direct reuse, for utilizing flotation backwater, flotation being carried out to multi-metal sulfide; Described flotation comprises prepares ore pulp and concrete flotation operation, and described concrete flotation operation comprises roughly selects operation; It is characterized in that,
In the process preparing ore pulp, utilize multi-metal sulfide flotation backwater that ore is prepared into ore pulp;
Carry out concrete flotation operation roughly select operation before, add in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare and realize the medicament of multi-metal sulfide flotation backwater direct reuse, thus realize multi-metal sulfide flotation backwater direct reuse;
Wherein, the medicament realizing multi-metal sulfide flotation backwater direct reuse is mixed by the raw material of following weight parts:
Humate 90 ~ 100 parts,
Lignosulfonates 0 ~ 5 part,
Calgon 0 ~ 5 part;
The medicament realizing multi-metal sulfide flotation backwater direct reuse added in ore pulp is 0.1 ~ 1.2:1000 with the weight ratio preparing ore pulp ore used.
2. according to the method described in claim 1, it is characterized in that, when there is multiple concrete flotation operation in the flotation carried out multi-metal sulfide, roughly select before operation carries out at first concrete flotation operation, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse.
3. according to the method described in claim 2, it is characterized in that, when there is multiple concrete flotation operation in the flotation carried out multi-metal sulfide, roughly select before operation carries out at least two concrete flotation operations, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse.
4. according to the method in any one of claims 1 to 3, it is characterized in that, it is the aqueous solution of 1% ~ 10% that the medicament realizing multi-metal sulfide flotation backwater direct reuse is first mixed with quality than concentration, then adds in ore pulp.
5. according to the method in any one of claims 1 to 3, it is characterized in that, described concrete flotation operation comprises selected operation, and/or, scan operation;
Before selected operation is carried out, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse;
And/or,
Before scanning operation and carrying out, in the ore pulp utilizing multi-metal sulfide flotation backwater to prepare, add the medicament realizing multi-metal sulfide flotation backwater direct reuse.
6. according to the method in any one of claims 1 to 3, it is characterized in that, described utilize multi-metal sulfide flotation backwater that ore is prepared into ore pulp to comprise: described ore pulp mass concentration is 10% ~ 48%.
7. according to the method in any one of claims 1 to 3, it is characterized in that, described utilize multi-metal sulfide flotation backwater ore to be prepared into ore pulp to comprise following at least one item:
Ore being prepared into the water that ore pulp uses is all multi-metal sulfide flotation backwater;
Or,
Ore being prepared into water that ore pulp uses for clear water and multi-metal sulfide flotation backwater mixes in any proportion;
Or,
The water that the whole direct reuse of flotation backwater that multi-metal sulfide carries out flotation uses for ore being prepared into ore pulp.
8. according to the method in any one of claims 1 to 3, it is characterized in that, described multi-metal sulfide comprises at least one in copper-sulphide ores, copper sulfide sulphur ore deposit, copper sulfide lead ore, copper sulfide zinc ore, copper sulfide Pb-Zn deposits, lead-zinc sulfide ore, vulcanized lead zinc sulphur ore deposit or copper sulfide molybdenum ore.
9. realize a medicament for multi-metal sulfide flotation backwater direct reuse, it is characterized in that, mixed by the raw material of following weight parts:
Humate 90 ~ 100 parts,
Lignosulfonates 0 ~ 5 part,
Calgon 0 ~ 5 part.
10., according to the medicament described in claim 9, it is characterized in that,
Described humate is at least one in sodium humate, humic acid potassium or ammonium humate;
Described lignosulfonates are at least one in ammonium lignosulphonate or sodium lignin sulfonate.
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| CN104815759A (en) * | 2015-03-24 | 2015-08-05 | 大冶有色金属集团控股有限公司 | Technological method and device for copper and molybdenum separation waste water cyclic utilization |
| CN106076604B (en) * | 2016-07-22 | 2019-05-17 | 西藏金和矿业有限公司 | A kind of ore-dressing technique and its floating agent of Pb-Zn-Ag ore |
| CN109174471B (en) * | 2018-08-28 | 2020-08-11 | 北京矿冶科技集团有限公司 | Self-cleaning backwater treatment method |
| CN111495577B (en) * | 2020-04-03 | 2022-07-05 | 北京矿冶科技集团有限公司 | Lead-zinc sulfide ore dressing method for reducing backwater influence |
| CN112264196A (en) * | 2020-08-20 | 2021-01-26 | 中国恩菲工程技术有限公司 | Reagent for recycling polymetallic sulfide ore flotation backwater and application thereof |
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