CN103433144B - Flotation agent for flotation of kustelite and flotation method - Google Patents
Flotation agent for flotation of kustelite and flotation method Download PDFInfo
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Abstract
The invention relates to the field of mineral mining, and specifically relates to a flotation agent for flotation of kustelite and a flotation method. The flotation agent for flotation of the kustelite comprises copper sulfate, iso-amyl xanthate, ammonium dibutyl dithiophosphate and sodium hexametahposphate; in measurement by weight, the flotation agent for flotation of each ton of a raw ore comprises 50-170 grams of copper sulfate, 250-290 grams of iso-amyl xanthate, 50-90 grams of ammonium dibutyl dithiophosphate and 1-3 grams of sodium hexametahposphate. The flotation method for flotation of the kustelite by using the flotation agent comprises the following steps in the process of obtaining graded overflows: crushing the raw ore, and then performing one section of ore grinding; and adding copper sulfate into a loop for grading ore grinding to obtain graded overflows with prescheduled fineness and concentration, wherein in measurement by weight, 40-160 grams of copper sulfate is added into each ton of the raw ore. The flotation agent and flotation method provided by the invention ensure that tailing water generated during flotation is purified, and an effect of recycling can be realized.
Description
Technical field
The present invention relates to exploitation of mineral resources field, in particular to a kind of flotation agent and method for floating of flotation kustelite.
Background technology
At present, in the method for floating of flotation kustelite, common process employing one roughing scans twice selected closed cycle operating process for twice, in the related, in floatation process, adopt with the flotation agent of collecting agent, foaming agent and inhibitor composition, concrete, using isoamyl xanthate as collecting agent, using butyl ammonium aerofloat as foaming agent, using waterglass as the inhibitor of gangue mineral; Concrete flotation comprises the following steps, and please refer to Fig. 1:
1: after crushing raw ore, carry out primary grinding, obtain the Grading Overflow of predetermined fineness and predetermined concentration; 2: in Grading Overflow, add isoamyl xanthate and butyl ammonium aerofloat, and stir, obtain the ore pulp after sizing mixing; 3: rougher process is carried out to the ore pulp after sizing mixing, obtain roughly selecting foam and roughly selecting rear ore pulp; 4: add waterglass roughly selecting in foam, it is selected to carry out first time, obtains single-minded foam and single-minded rear ore pulp; 5: it is selected single-minded foam to be carried out second time, obtain ore pulps after gold and silver concentrate and essence two; 6: ore pulp after the essence two obtained is carried out first time selected operation; 7: after roughly selecting, add isoamyl xanthate in ore pulp, carry out first time and scan, obtain sweeping a rear ore pulp and sweeping a foam; 8: ore pulp after will be swept and add isoamyl xanthate and carry out second time and scan, and obtain mine tailing and sweep two foams; 9: carry out the first time operation of scanning by sweeping two foams; And then complete whole closed circuit flotation flowsheet.
But, in the related, because waterglass is strong base-weak acid salt, its aqueous solution, in alkalescence, after it can be used as inhibitor to add ore pulp, can make settling ore pulp difficulty, and in order to make settling ore pulp smooth, must add lime, lime then can cause making tailing water be difficult to long-term reuse, and then makes the tailing water produced in floatation process can not realize recycling.
Summary of the invention
The object of the present invention is to provide a kind of flotation agent and method for floating of flotation kustelite, to solve the above problems.
The flotation agent of the flotation kustelite provided in embodiments of the invention, comprises copper sulphate, isoamyl xanthate, butyl ammonium aerofloat and calgon; By weight, copper sulphate 50-170 gram, isoamyl xanthate 250-290 gram, butyl ammonium aerofloat 50-90 gram and calgon 1-3 gram is comprised for the described flotation agent of flotation kustelite per ton.
Embodiments of the invention additionally provide a kind of method for floating of flotation kustelite, obtaining, in Grading Overflow process, specifically comprising: after crushing raw ore, carry out primary grinding, in grind grading loop, add copper sulphate, obtain the Grading Overflow of predetermined fineness and predetermined concentration; Wherein, by weight, the weight of the copper sulphate added in described raw ore per ton is 40g-160g.
The flotation agent of the flotation kustelite of the above embodiment of the present invention and method for floating, wherein, flotation agent is made up of copper sulphate, isoamyl xanthate, butyl ammonium aerofloat and calgon, in the process of primary grinding, add the carrier mineral that copper sulphate can activate gold and silver, as pyrite, magnetic iron ore, galena, zincblende, mispickel etc., make it in the process of flotation, the floating of gold and silver particle is strengthened; Isoamyl xanthate, butyl ammonium aerofloat are respectively as the collecting agent in floatation process and foaming agent.The copper sulphate added in primary grinding process of the present embodiment in the process of flotation can with remaining isoamyl xanthate, butyl ammonium aerofloat generation chemical reaction generate precipitation, and then play the effect of the tailing water purification obtained in floatation process, the tailing water after purifying can be reused; Further, the copper sulphate added in primary grinding process also can make that the foam that produces in floatation process is solid, froth bed is thinning, and adds the stability of froth bed, and then is more easy to realize gold and silver particle along with foam and floats.
In addition, calgon is as the inhibitor of lode ore, because the aqueous solution of calgon is in neutral, it is very little to the inhibition of gold and silver particle, to lode ore, there is very strong inhibitory action, therefore, in the process of flotation, be easy to a large amount of gold and silver particles is floated along with foam, be conducive to the grade and the rate of recovery that improve gold and silver in kustelite.
To sum up, this flotation agent of the embodiment of the present invention and method for floating, by the effect of the flotation agent such as copper sulphate, calgon, can improve grade and the rate of recovery of gold and silver in kustelite, also make the tailing water purification produced in floatation process simultaneously, the effect reused can be realized.
Accompanying drawing explanation
Fig. 1 shows the flow chart of kustelite method for floating in correlation technique;
Fig. 2 shows the flow chart of the method for floating of the kustelite that the embodiment of the present invention one provides;
Fig. 3 shows the flow chart of the method for floating of the kustelite that the embodiment of the present invention two provides.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
The flotation agent for flotation kustelite provided in embodiments of the invention, comprises copper sulphate, isoamyl xanthate, butyl ammonium aerofloat and calgon; By weight, the flotation agent for flotation kustelite per ton comprises copper sulphate 50-170 gram, isoamyl xanthate 250-290 gram, butyl ammonium aerofloat 50-90 gram and calgon 1-3 gram.
The method for floating of the kustelite that the present embodiment also provides, please refer to Fig. 2, comprises the following steps:
Step 101: after crushing raw ore, carries out primary grinding, in grind grading loop, add copper sulphate, obtains the Grading Overflow of predetermined fineness and predetermined concentration;
In a step 101, first-selection needs raw ore to carry out fragmentation, and carries out primary grinding, concrete, need to add copper sulphate in the classification loop of primary grinding, in the process of operation, preferably in cyclone sand pump pond, add copper sulphate, obtain the Grading Overflow of predetermined fineness and predetermined concentration; It is pointed out that Grading Overflow refers to the ore pulp of the flow-like obtained in the process of primary grinding; Grind grading loop refers to: the closed circuit grinding classification flow process that ball mill and spiral classifier, hydrocyclone form.
Wherein, by weight, the weight of the copper sulphate added in raw ore per ton is 40g-160g.
Step 102: Grading Overflow is added agitator, adds isoamyl xanthate and butyl ammonium aerofloat, and stirs in agitator, obtains the ore pulp after sizing mixing;
In a step 102, add isoamyl xanthate and butyl ammonium aerofloat in the ore pulp obtained, isoamyl xanthate is as collecting agent, and butyl ammonium aerofloat is then as foaming agent.Need to carry out strong stirring after isoamyl xanthate and butyl ammonium aerofloat are added to ore pulp, concrete, the object that can realize strong stirring by the strong stirring barrel of φ 2500 × 2500 and size mixing.
Step 103: carry out rougher process to the ore pulp after sizing mixing, obtains roughly selecting foam and roughly selecting rear ore pulp; Add calgon roughly selecting in foam, carry out refining process; After roughly selecting, add isoamyl xanthate and copper sulphate in ore pulp, carry out scanning process; Closed cycle flotation is carried out to rougher process, refining process and the process of scanning, obtains gold and silver concentrate and mine tailing;
In step 103, by roughly selecting, selected and scan and then reach the effect of the flotation of ore pulp after sizing mixing, in the process of roughly selecting, obtain roughly selecting foam and roughly selecting rear ore pulp, roughly select in foam and realize selected process by adding calgon, and in the process of scanning, select to add the process that isoamyl xanthate and copper sulphate realize as flotation agent scanning; In the present embodiment, concrete operation adopts the flow process of closed cycle.
By roughly select, scan and selected after can obtain gold and silver concentrate and mine tailing.
The flotation agent of the flotation kustelite of the above embodiment of the present invention and method for floating, wherein, flotation agent is made up of copper sulphate, isoamyl xanthate, butyl ammonium aerofloat and calgon, in the process of primary grinding, add the carrier mineral that copper sulphate can activate gold and silver, as pyrite, magnetic iron ore, galena, zincblende, mispickel etc., make it in the process of flotation, the floating of gold and silver particle is strengthened; Isoamyl xanthate, butyl ammonium aerofloat are respectively as the collecting agent in floatation process and foaming agent.The copper sulphate added in primary grinding process of the present embodiment in the process of flotation can with remaining isoamyl xanthate, butyl ammonium aerofloat generation chemical reaction generate precipitation, and then play the effect of the tailing water purification obtained in floatation process, the tailing water after purifying can be reused; Further, the copper sulphate added in primary grinding process also can make that the foam that produces in floatation process is solid, froth bed is thinning, and adds the stability of froth bed, and then is more easy to realize gold and silver particle along with foam and floats.
In addition, calgon is as the inhibitor of lode ore, because the aqueous solution of calgon is in neutral, it is very little to the inhibition of gold and silver particle, to lode ore, there is very strong inhibitory action, therefore, in the process of flotation, be easy to a large amount of gold and silver particles is floated along with foam, be conducive to the grade and the rate of recovery that improve gold and silver in kustelite.
To sum up, this flotation agent of the embodiment of the present invention and method for floating, by the effect of the flotation agent such as copper sulphate, calgon, can improve grade and the rate of recovery of gold and silver in kustelite, also make the tailing water purification produced in floatation process simultaneously, the effect reused can be realized.
Better applied to make the method for floating of the embodiment of the present invention one, more effectively be applied in ore-dressing technique, the present invention also provides embodiment two on the basis of above-described embodiment one, embodiment two is further restriction and increase that the basis to embodiment one is made, now be described in detail and explain, please refer to Fig. 3:
Embodiment two
The step of embodiment one is carried out concrete refinement and detailed description by the present embodiment, and as in the step 103 of embodiment one, concrete operation all adopts the flow process of closed cycle, specifically comprises the following steps:
Step 201: carry out rougher process to the ore pulp after sizing mixing, obtains roughly selecting foam and roughly selecting rear ore pulp;
Concrete, the process of roughly selecting can be achieved by the flotation device of 4 groove SF4 cubic meters, and in the process of roughly selecting, a large amount of gold and silver particles floats along with roughly selecting foam, and can follow-up refining process be carried out, and roughly selecting rear ore pulp and can enter and follow-up scan process under groove.
Step 202: add calgon roughly selecting in foam, it is selected to carry out first time, obtains single-minded foam and single-minded rear ore pulp;
Concrete, first time, selected process can be achieved by A type 2.8 cubes of flotation devices.
Step 203: it is selected single-minded foam to be carried out second time, obtains ore pulps after gold and silver concentrate and essence two;
In step 203, after second time is selected, can obtain gold and silver concentrate, after essence two, ore pulp returns selected for the first time.
Concrete, process selected for the second time can by the 2.8 cubes of flotation devices operations of A type.
Step 204: add isoamyl xanthate and copper sulphate in ore pulp after roughly selecting, carries out first time and scans, ore pulp after obtaining sweeping; Wherein, by weight, in raw ore per ton, add isoamyl xanthate 80 grams, 5 grams, copper sulphate.
The rear ore pulp of roughly selecting obtained in rougher process is carried out first time by SF4 cube of flotation device and scanned, ore pulp after can obtaining sweeping.
Step 205: ore pulp after will be swept and add isoamyl xanthate and copper sulphate and carry out second time and scan, and obtain mine tailing and sweep two foams; Wherein, by weight, in raw ore per ton, add isoamyl xanthate 120 grams, 5 grams, copper sulphate.
After sweeping one, ore pulp is scanned again by SF4 cube of flotation device, can obtain mine tailing and sweep two foams; To sweep two foams return first time scan, carry out circulation flotation.
After the above step is finished, obtain tailing water by after gold and silver concentrate and described mine tailing respectively press filtration, tailing water is recycled in the process of flotation, to realize the reuse of tailing water.
In addition, it is noted that in step 202 in the present embodiment, need can also obtain single-minded rear ore pulp, in step 204, can also obtain sweeping a foam; The single-minded rear ore pulp obtained is carried out middling ore regrinding, obtains Grading Overflow of regrinding; Grading Overflow of regrinding directly returns rougher process, carry out primary dcreening operation, the process of specifically regrinding can by after Φ 300 cyclone classification, after sand setting is regrinded by Φ 900 × 2400 ball milling, single-minded rear ore pulp, the overflow of ore discharge after Φ 300 cyclone classification of ball milling of regrinding directly returns roughly selects.
Concrete, because gold mineral granularity is based on mustard gold and particulate gold, account for 39.86% and 45.48% respectively, middle grain is golden and coarse gold is less, accounts for 13.64% and 1.02% respectively.The main carriers mineral yellow iron ore crystallization of gold and silver is tiny, and embedding cloth particle is little, and middling cycle amount is large, and the carrier mineral of gold and silver and gold, silver and quartz, gangue intergrowth are many.The little gold and silver carrier mineral of content, galena, zincblende, chalcopyrite mispickel embedding cloth particle are less.In addition, part mustard gold silver mineral and quartz, gangue symbiosis.Ball grinder graded overflow fineness is-200 orders 73%, more slightly; Desirable mog is-200 orders 80%, but owing to further improving ball milling fineness, ball-milling treatment amount significantly reduces, and beneficiation cost also raises more, and production task has been difficult to; Can regrinding process be adopted for this reason, and former mog-200 order 75% is reduced to 73%, improve ball-milling treatment amount 30 tons corresponding every day.
Select φ 900 × 2400 overflowball mill, all very large according to the middling cycle amount of production scene flotation, under single-minded groove, two systems sweep the foam of, sweep two foam cycle amount all very large, single-minded rear ore pulp merges almost close with the mine tailing amount of a system, per hourly reach about 60 cubic metres, select the cyclone of a φ 300 for this reason, 2 inches of sand pumps, Sand pump motor 4 grades, power is 11 kilowatts, regrinding process is that after middling ore regrinding, cyclone classification overflow enters and roughly selects, and does not add anyly to add water in the process of regrinding.
The single-minded rear ore pulp of table 1 is regrinded systems technology parameter
| Title | Concentration | Fineness-200 order content | Gold grade |
| Single-minded rear ore pulp | 19.33% | 71.38% | 1.70 grams/ton |
| Hydrocyclone sand | 54.88% | 50.01% | 3.28 grams/ton |
| Cyclone overflow | 20.35% | 98.5% | 1.77 grams/ton |
As seen from Table 1, ball milling ore grinding (sand setting of the cyclone) concentration after regrinding reaches 54.88%, is 50.01% to ore deposit fineness-200 order.Regrind and former for single-minded rear ore pulp-200 orders only accounted for 71.38% and be milled down to-200 orders and reach 98.5%, above explanation regrind ball milling and classifying cyclone working condition good, system works of regrinding is normal.
In addition, first time scans the foam of sweeping obtained in process and returns and roughly select.
It is pointed out that in the process of flotation, concrete, roughly select in foam and add calgon, it is selected to carry out first time, and obtain in the step of single-minded foam, the weight of calgon can be 1.5-2.5 gram; After roughly selecting, add isoamyl xanthate and copper sulphate in ore pulp, carry out first time and scan, obtain sweeping in the step of ore pulp after, the weight of isoamyl xanthate can be 70-90 gram, and the weight of copper sulphate can be 4-6 gram; Ore pulp after one will be swept add isoamyl xanthate and copper sulphate and carry out second time and scan, and obtain mine tailing and sweep in the step of two foams; The weight of isoamyl xanthate can be the weight 4-6 gram of 110-130 gram, copper sulphate.
Further, preferably, in the present embodiment, predetermined fineness is-200 order 72%-74%; Predetermined concentration is 32%-34%; Preferably, predetermined fineness is-200 orders 73%, and predetermined concentration is 33%, it is pointed out that fineness refers to the granule size of the Grading Overflow Minerals particle obtained, in the present embodiment, represent to be less than 200 object percentage compositions, namely-200 orders 73% refer to the content being less than 200 object particles is 73%.
To sum up, calgon is strong to the inhibitory action of gangue, and therefore addition is little, and inhibition is better than waterglass, and Gold Concentrate under Normal Pressure quality improves in a large number; Sodium hexametaphosphate solution is in neutral, and consumption is few, very little to the inhibition of gold silver mineral, is conducive to the raising of recovery of gold and silver, makes tailing water pH in neutral simultaneously; In addition, calgon has very strong clear water effect, make tailing water limpid, waterglass is added on stream before changing, add large quantities of lime tailing water still turbid phenomenon again, after making gold and silver concentrate press filtration, moisture is reduced to less than 14% by original more than 20% simultaneously, and after tailings characteristic, moisture is reduced to less than 15% by original more than 20%, and makes tailings characteristic efficiency improve more than 20%.
Add copper sulphate in the floatation process of the present embodiment and can activate gold and silver carrier mineral pyrite, magnetic iron ore, galena, zincblende, mispickel etc., make they floating strengthened, thus improve recovery of gold and silver.
Following data are adopt the method for floating of the embodiment of the present invention and the contrast of traditional method for floating flotation effect, please refer to table 2 to table 4:
Table 2 production and technical indication contrasts
As can be seen from Table 2: the method for floating by embodiment one: gold and silver concentrate productive rate is reduced to 5.89% from 6.06%; Gold and silver concentrate Gold grade brings up to 55.41g/t from 45g/t, and argentiferous grade brings up to 874.87g/t from 730g/t; Mine tailing from 0.5 gram/ton, is reduced to 0.34 gram/ton containing gold; Gold recovery brings up to 90.9% from 86.58%, and mine tailing argentiferous grade is reduced to 9 grams/ton from 16.8 grams/ton, and silver raising recovery rate brings up to 85.18% from 73.73%.
The single-minded rear ore pulp of table 3 production target of regrinding contrasts with production target of not regrinding
As can be seen from Table 3: regrinded by single-minded rear ore pulp, gold and silver concentrate productive rate is reduced to 5.39% from 5.89%; Gold and silver concentrate Gold grade brings up to 60g/t from 55.41g/t; Argentiferous grade brings up to 1030.15g/t from 874.87g/t; Mine tailing is reduced to 0.28 gram/ton containing gold from 0.34 gram/ton; The rate of recovery brings up to 92.54% from 90.9%, and mine tailing argentiferous is reduced to 4.73 grams/ton from 9 grams/ton, and silver raising recovery rate brings up to 92.54% from 85.18%.
In the process of ore dressing, mine is positioned at area, water head site upstream, and the water after concentrate press filtration and the water after tailings characteristic forbid outer row.
Floatation process produces a large amount of residual pharmacies, mainly isoamyl xanthate and butyl ammonium aerofloat, especially isoamyl xanthate, and because of large usage quantity, production scene consumption reaches 270 grams/ton; Therefore, the outer row of the tailing water produced in ore dressing process can be able to pollute water quality, and dry mode of piling after mill tailings many employings press filtration, tailing water also can not get the effect of self-cleaning in Tailings Dam.
If the water after concentrate press filtration and the water after tailings characteristic do not take the measure of this example, directly return iterative cycles in grinding flotation loop to use, will excessive xanthate black powder be caused to accumulate in water, thickener is run muddy, floatation process frequently runs groove, produces hard to carry on.
And the method for treating water of this example: in grind grading loop, add copper sulphate, and adjust the consumption of copper sulphate, both processed ore dressing water, take into account again the carrier mineral of activation gold and silver.In the scope of 30-150 gram/ton; When in tailing water in production process, residual pharmacy is more; The consumption of copper sulphate is large, makes the residue isoamyl xanthate in copper sulphate and ore pulp and butyl ammonium aerofloat effect, and then reaches the effect of process residual drug, the carrier mineral of simultaneously slightly many copper sulphate for activation gold and silver.
Concrete reaction equation is as follows:
Cu
2++2(CH
3)
2CHCH
2CH
2OCSS
—=[(CH
3)
2CHCH
2CH
2OCSS]
2Cu↓；
Cu
2++2(C4H9O)
2PSS
—=[(C
4H
9O)
2PSS]
2Cu↓；
The copper sulphate added can with isoamyl xanthate and butyl ammonium aerofloat generation effect, and generate precipitation, and then realize removing the effect of residual drug, thus in beneficiation flowsheet, make thickener run muddy and floatation process frequently run groove problem and be resolved.
By the processing method of the present embodiment, the reclamation rate of water can reach 70%, the full reuse of tailing water; Do not need other water treatment agent and utilize a large amount of water processing establishments, saving a large amount of places, save great amount of investment, tailing water water quality is good simultaneously, and can recycle for a long time, mineral processing index is unaffected.
The tailing water water quality monitoring report data of table 4 the present embodiment
Can be found out by above data: the tailing water water quality through repeatedly recycling is good, and objectionable impurities ion concentration is low, does not all exceed discharge standard.Therefore, the sulfuric acid added in the floatation process of the present embodiment improves gold and silver recovery rate in ore-dressing on the one hand, makes again tailing water reach the effect of full reuse on the other hand.
Table 5 is contrasted by method for floating of the present invention and traditional method for floating production target
As can be seen from Table 5: by method for floating of the present invention, gold and silver concentrate productive rate is reduced to 5.39% from 6.06%; Gold and silver concentrate Gold grade brings up to 60g/t from 45g/t; Argentiferous grade brings up to 1030.15g/t from 730g/t; Mine tailing is reduced to 0.28 gram/ton containing gold from 0.5 gram/ton, and mine tailing argentiferous is reduced to 4.73 grams/ton from 16.78 grams/ton; Gold recovery brings up to 92.4% from 86.58%, and silver raising recovery rate brings up to 92.54% from 73.73%; Treating capacity improves 30 tons/day simultaneously.
To sum up, this method for floating of the embodiment of the present invention, the production target not only achieved, the benefit achieved, environmental protection simultaneously obtains guarantee.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a method for floating for flotation kustelite, comprises the following steps:
1), by after crushing raw ore, carry out primary grinding, in the loop of grind grading, add copper sulphate, obtain the Grading Overflow of predetermined fineness and predetermined concentration; Wherein, in this step, by weight, the weight of the copper sulphate added in described raw ore per ton is 40g-160g;
2), by Grading Overflow add agitator, in agitator, add isoamyl xanthate and butyl ammonium aerofloat, and stir, obtain the ore pulp after sizing mixing;
3), to the ore pulp after sizing mixing carry out rougher process, obtain roughly selecting foam and roughly selecting rear ore pulp;
4), roughly selecting in foam add calgon, it is selected to carry out first time, obtains single-minded foam and single-minded rear ore pulp; Wherein, in this step, by weight, the weight of calgon that corresponding described raw ore per ton adds is 1g-3g;
5), by single-minded foam carry out second time selected, obtain gold and silver concentrate and the rear ore pulp of essence two;
6), after roughly selecting add isoamyl xanthate and copper sulphate in ore pulp, carry out first time and scan, ore pulp after obtaining sweeping; Wherein, in this step, by weight, isoamyl xanthate that corresponding raw ore per ton adds 80 grams, 5 grams, copper sulphate;
7), ore pulp after will be swept add isoamyl xanthate and copper sulphate and carry out second time and scan, and obtain mine tailing and sweep two foams; Wherein, in this step, by weight, isoamyl xanthate that corresponding raw ore per ton adds 120 grams, 5 grams, copper sulphate.
2. method for floating according to claim 1, is characterized in that, describedly adds calgon roughly selecting in foam, and it is selected to carry out first time, after obtaining the step of single-minded foam and single-minded rear ore pulp, also comprises:
Single-minded rear ore pulp is carried out middling ore regrinding, obtains Grading Overflow of regrinding;
Described Grading Overflow of regrinding is returned rougher process, carries out primary dcreening operation.
3. method for floating according to claim 2, is characterized in that, also comprises:
Obtain tailing water by after gold and silver concentrate and described mine tailing respectively press filtration, described tailing water is recycled in the process of flotation.
4. the method for floating according to any one of claim 1-3, is characterized in that,
Described predetermined fineness is :-200 order 72%-74%;
Described predetermined concentration is: 32%-34%.
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| CN107225047B (en) * | 2017-05-23 | 2019-05-17 | 西北矿冶研究院 | Method for enriching noble metals from walls and ground of gold and silver smelting workshop |
| CN110404690B (en) * | 2019-07-22 | 2021-03-12 | 广东省科学院资源综合利用研究所 | Method for recovering independent silver mineral from silver-tin paragenetic ore |
| CN112808450B (en) * | 2020-12-29 | 2022-03-25 | 莱芜钢铁集团泰东实业有限公司 | Device and method for enriching valuable elements in sintering machine head ash |
| CN113856911B (en) * | 2021-09-28 | 2023-06-23 | 中国恩菲工程技术有限公司 | Beneficiation method for high-sulfur copper gold and silver ore |
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