CN101623674A - Method for floating inhibited iron sulfide minerals - Google Patents
Method for floating inhibited iron sulfide minerals Download PDFInfo
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- CN101623674A CN101623674A CN200910089099A CN200910089099A CN101623674A CN 101623674 A CN101623674 A CN 101623674A CN 200910089099 A CN200910089099 A CN 200910089099A CN 200910089099 A CN200910089099 A CN 200910089099A CN 101623674 A CN101623674 A CN 101623674A
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Abstract
A method for floating inhibited iron sulfide minerals relates to a method for floating iron sulfide minerals such as pyrite, marcasite, pyrrhotite and the like, in particular to a method for floating pyrite which is strongly inhibited by high alkali and high calcium in the separation of nonferrous polymetallic ores containing pyrite. The method is characterized in that water glass or sodium hexametaphosphate is added to tailings after flotation of copper, lead, zinc and other metal minerals to disperse and inhibit gangue, and then a collecting agent dodecylamine or octadecylamine is directly added to obtain iron sulfide concentrate. The method of the invention can realize the floatation of the pyrite without thick dehydration and adding sulfuric acid and copper sulfate for activation, and obtain the iron sulfide concentrate product with high quality and high recovery rate.
Description
Technical field
A kind of method of floatation of depressed iron sulfide ore, the method that relates to the flotation of iron sulfide minerals such as a kind of pyrite, marcasite, magnetic iron ore, branch especially for the coloured polymetallic ore that contains troilite is chosen, by the method for floating of the troilite of high-alkali and high calcium strong inhibition.
Background technology
In nonferrous metals ore, usually contain the troilite that quantity does not wait, it is the important source material of chemical plant relieving haperacidity, it is to need one of comprehensive associated metal sulfide mineral that reclaims in this kind ore, be again the impurity of concentrate such as nonferrous mineral dressing factory other products such as copper concentrate, lead concentrate, zinc concentrate, in order to obtain concentrate such as high-grade copper, lead, zinc, usually need add CaO, under high pH value, suppress the troilite thing and could realize.And will be after this again flotation then the dense dehydration of ore pulp must be removed a large amount of free CaOs in the ore pulp by the troilite thing of strong inhibition, and to reduce slurry pH with a large amount of sulfuric acid, activation troilite thing.Add sulfuric acid except there being the danger of sulfuric acid, produce hypertoxic hydrogen sulfide gas when also having, can endanger the healthy even life of producers the corrosion of floatation equipment and accidental release at storage, dilution and course of conveying.
Summary of the invention
Purpose of the present invention is exactly deficiency and the drawback that exists in the existing flotation iron sulfide mineral technology, provides a kind of and can save dense dewatering operation, eliminates the method for floating of the efficient flotation that adds the danger that acid causes depressed iron sulfide ore under high-alkali, high calcium condition.
The objective of the invention is to realize by technical scheme.
A kind of method of floatation of depressed iron sulfide ore, it is characterized in that it being mine tailing with behind Floatation of Copper, lead, the zinc metalliferous mineral, after adding the dispersion of waterglass or calgon and suppressing gangue, directly add collecting agent lauryl amine or octadecylamine, obtain the iron sulfide concentrate.
The method of a kind of floatation of depressed iron sulfide ore of the present invention is characterized in that disperseing in the floatation process and the waterglass addition of inhibition gangue is 2800～3500g/t
-dried ore depositOr the addition of calgon is 800～1000g/t
-dried ore deposit, collecting agent lauryl amine or octadecylamine addition are 30～50g/t
-dried ore deposit
In the FLOTATION SEPARATION of coloured multi-metal sulfide, symbiosis according to each mineral, disseminated grain size, need suitable mog to reach monomer dissociation, also to control the pH value of flotation pulp according to the floatability of different minerals, also want suitable floatation concentration, and add the consumption of effectively adjusting agent and collecting agent accurately, could obtain good separation index.As certain Pb-Zn-Ag ore ore dressing plant, adopt lead, zinc, sulphur selective flotation flowsheet successively, at raw ore mog 65%～70%, granularity is-condition of 0.074mm under, with CaO control slurry pH 9.0～10.5, and cooperate sodium sulfite, zinc sulfate to suppress zincblende and pyrite, obtain lead concentrate with aniline black powder and diethyldithiocarbamate collecting galena, size mixing to pH value 11.0～12.0 with CaO then, through the copper sulphate for activation zincblende, butyl xanthate is done the floating zinc of collecting agent and is obtained zinc concentrate.
Method of the present invention, mine tailing behind the floating zinc changed want dense dehydration in the past and add the sulfuric acid pyritous technology of activation of sizing mixing, employing is used the pyritous new collector of flotation after adding waterglass or calgon, the pyrite that direct flotation has been suppressed by CaO, this collecting agent selectivity is good, and collecting ability is strong, is giving under the condition of ore deposit sulfur-bearing 26.09%, one roughing obtains iron sulfide concentrate sulphur grade 47.21%, sulfur recovery rate 93.50%.Both saved dense dewatering operation, and eliminated again and add the danger that acid causes.
The specific embodiment
A kind of method of floatation of depressed iron sulfide ore, it is characterized in that it being mine tailing with behind the metalliferous minerals such as Floatation of Copper, lead, zinc, after adding the dispersion of waterglass or calgon and suppressing gangue, directly add collecting agent lauryl amine or octadecylamine, obtain the iron sulfide concentrate.The waterglass addition of dispersion and inhibition gangue is 2800～3500g/t in the floatation process
-dried ore depositOr the addition of calgon is 800～1000g/t
-dried ore deposit, collecting agent lauryl amine or octadecylamine addition are 30～50g/t
-dried ore deposit
Embodiment 1
The mine tailing sulfur-bearing 25.5% behind the zinc is selected in certain plumbous zinc ore dressing plant, and slurry pH 11.5 is added and adjusted agent waterglass 3000g/t
- Do the ore deposit, collecting agent lauryl amine 40g/t
-dried ore deposit, one roughing has obtained sulphur grade 43.55%, the high-quality iron sulfide concentrate of sulfur recovery rate 94.29%.
Embodiment 2
Certain silver-colored ore-dressing of polymetallic ore factory selects the mine tailing sulfur-bearing 26.7% behind the zinc, and slurry pH 11.8 is added and adjusted agent calgon 800g/t
-dried ore deposit, collecting agent octadecylamine 45g/t
-dried ore deposit, one roughing has obtained sulphur grade 44.46%, the high-quality iron sulfide concentrate of sulfur recovery rate 94.83%.
Embodiment 3
The mine tailing sulfur-bearing 22.6% behind the zinc is selected in certain copper-lead zinc ore ore dressing plant, and slurry pH 12.0 is added and adjusted agent waterglass 3500g/t
-dried ore deposit, collecting agent lauryl amine 35g/t
-dried ore deposit, one roughing has obtained sulphur grade 43.47%, the high-quality iron sulfide concentrate of sulfur recovery rate 92.89%.
Embodiment 4
The mine tailing sulfur-bearing 18.3% behind the zinc is selected in certain copper-lead zinc ore ore dressing plant, and slurry pH 12.3 is added and adjusted agent waterglass 2800g/t
-dried ore deposit, collecting agent octadecylamine 30g/t
-dried ore deposit, one roughing has obtained sulphur grade 42.89%, the high-quality iron sulfide concentrate of sulfur recovery rate 91.73%.
Embodiment 5
Certain copper-molybdenum ore dressing plant, the copper molybdenum mixes the mine tailing sulfur-bearing 28.1% after the choosing, and slurry pH 9.8 is added and is adjusted agent calgon 1000g/t
-dried ore deposit, collecting agent lauryl amine 50g/t
-dried ore deposit, one roughing has obtained sulphur grade 44.73%, the high-quality iron sulfide concentrate of sulfur recovery rate 95.16%.
Embodiment 6
The mine tailing sulfur-bearing 32.7% behind the zinc is selected in certain copper zinc ore ore dressing plant, and slurry pH 12.1 is added and adjusted agent waterglass 2500g/t
- Do the ore deposit, collecting agent lauryl amine 30g/t
-dried ore deposit, one roughing has obtained sulphur grade 44.57%, the high-quality iron sulfide concentrate of sulfur recovery rate 92.73%.
Embodiment 7
The mine tailing sulfur-bearing 27.3% behind the copper is selected in certain ore dressing plant, copper sulphur ore deposit, and slurry pH 10.2 is added and adjusted agent calgon 8500g/t
-dried ore deposit, collecting agent octadecylamine 50g/t
-dried ore deposit, one roughing has obtained sulphur grade 43.43%, the high-quality iron sulfide concentrate of sulfur recovery rate 96.14%.
Claims (2)
1. the method for a floatation of depressed iron sulfide ore, it is characterized in that it being mine tailing with behind Floatation of Copper, lead, the zinc metalliferous mineral, after adding the dispersion of waterglass or calgon and suppressing gangue, directly add collecting agent lauryl amine or octadecylamine, obtain the iron sulfide concentrate.
2. the method for a kind of floatation of depressed iron sulfide ore according to claim 1 is characterized in that disperseing in the floatation process and the waterglass addition that suppresses gangue is 2800～3500g/t
-dried ore depositOr the addition of calgon is 800～1000g/t
-dried ore deposit, collecting agent lauryl amine or octadecylamine addition are 30～50g/t
-dried ore deposit
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910089099A CN101623674A (en) | 2009-08-03 | 2009-08-03 | Method for floating inhibited iron sulfide minerals |
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| CN200910089099A CN101623674A (en) | 2009-08-03 | 2009-08-03 | Method for floating inhibited iron sulfide minerals |
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| CN101623674A true CN101623674A (en) | 2010-01-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408133A (en) * | 2011-08-25 | 2012-04-11 | 重庆大学 | Method for preparing nanometer iron oxide film by natural pyrite |
| CN102658233A (en) * | 2012-04-25 | 2012-09-12 | 白银有色集团股份有限公司 | Method for recovering pyrite from flotation tailings of sulfide ore |
| CN103157560A (en) * | 2013-03-29 | 2013-06-19 | 云南金鼎锌业有限公司 | Flotation method of vulcanizing lead and zinc by weak acid full pulp |
| CN107470033A (en) * | 2017-08-01 | 2017-12-15 | 湖南华麒资源环境科技发展有限公司 | A kind of method polluted from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation |
| CN107890953A (en) * | 2017-11-27 | 2018-04-10 | 湖南华麒资源环境科技发展有限公司 | The nonmetallic hydrochlorate of tetrathio and its oligomer depressing agent and preparation application method |
-
2009
- 2009-08-03 CN CN200910089099A patent/CN101623674A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408133A (en) * | 2011-08-25 | 2012-04-11 | 重庆大学 | Method for preparing nanometer iron oxide film by natural pyrite |
| CN102658233A (en) * | 2012-04-25 | 2012-09-12 | 白银有色集团股份有限公司 | Method for recovering pyrite from flotation tailings of sulfide ore |
| CN103157560A (en) * | 2013-03-29 | 2013-06-19 | 云南金鼎锌业有限公司 | Flotation method of vulcanizing lead and zinc by weak acid full pulp |
| CN103157560B (en) * | 2013-03-29 | 2014-08-27 | 云南金鼎锌业有限公司 | Flotation method of vulcanizing lead and zinc by weak acid full pulp |
| CN107470033A (en) * | 2017-08-01 | 2017-12-15 | 湖南华麒资源环境科技发展有限公司 | A kind of method polluted from Sources controlling zinc sulfide mineral and iron sulfide mineral flotation |
| CN107890953A (en) * | 2017-11-27 | 2018-04-10 | 湖南华麒资源环境科技发展有限公司 | The nonmetallic hydrochlorate of tetrathio and its oligomer depressing agent and preparation application method |
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Application publication date: 20100113 |