CN102151614B - Method for dressing, desilicication and desulfuration of sulfur-containing bauxite - Google Patents
Method for dressing, desilicication and desulfuration of sulfur-containing bauxite Download PDFInfo
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- CN102151614B CN102151614B CN 201010587696 CN201010587696A CN102151614B CN 102151614 B CN102151614 B CN 102151614B CN 201010587696 CN201010587696 CN 201010587696 CN 201010587696 A CN201010587696 A CN 201010587696A CN 102151614 B CN102151614 B CN 102151614B
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 239000011593 sulfur Substances 0.000 title claims abstract description 98
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 63
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 59
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 7
- 238000005188 flotation Methods 0.000 claims abstract description 44
- 229910052604 silicate mineral Inorganic materials 0.000 claims abstract description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012141 concentrate Substances 0.000 claims abstract description 14
- 239000006260 foam Substances 0.000 claims abstract description 11
- 239000012190 activator Substances 0.000 claims abstract description 9
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 27
- 239000011707 mineral Substances 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 238000000227 grinding Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- 150000001412 amines Chemical group 0.000 claims description 5
- -1 ether amine Chemical class 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 239000012991 xanthate Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 2
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims 1
- 229940039790 sodium oxalate Drugs 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 229910001648 diaspore Inorganic materials 0.000 description 5
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 229910052960 marcasite Inorganic materials 0.000 description 2
- 235000006408 oxalic acid Nutrition 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052683 pyrite Inorganic materials 0.000 description 2
- 239000011028 pyrite Substances 0.000 description 2
- SRRKNRDXURUMPP-UHFFFAOYSA-N sodium disulfide Chemical compound [Na+].[Na+].[S-][S-] SRRKNRDXURUMPP-UHFFFAOYSA-N 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 229960003010 sodium sulfate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
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Abstract
The invention discloses a method for the dressing, desilicication and desulfuration of sulfur-containing bauxite, which relates to a method for the dressing, desilicication and desulfuration of low-quality sulfur-containing bauxite and is characterized in that: a dressing process to mill the sulfur-containing bauxite, regulate the pH to 3 to 6 by using sulfuric acid, add an inhibitor, an activator, a silicate mineral collector and a sulfur-containing gangue collector in turn, stir, perform size mixing and perform flotation; and after flotation, the silicate minerals and sulfur-containing gangue in a major part of the sulfur-containing bauxite are enriched in foam as tailings, and the ore pulp obtained after flotation is used as concentrate. When the method disclosed by the invention is used, the synchronous dressing, desulfuration and desilicication of the sulfur-containing bauxite can be realized quickly. The method has the characteristics of short flow and simple process.
Description
Technical field
A kind of ore dressing and desiliconizing sulfur method of sulfur-bearing bauxite relates to a kind of ore dressing and desiliconizing sulfur method of low-grade sulfur-bearing bauxite.
Technical background
Main sulfide mineral in China's sulfur-bearing bauxite has pyrite (FeS
2) and isomers marcasite and melnikovite and gypsum CaSO
4One type of sulfate.In alumina producing, pyrite reacts in 180 ℃ of beginnings and aqueous slkali, and aggravates with the raising of temperature and alkali concn, and marcasite particularly melnikovite more is prone to decomposed by aqueous slkali.Its reaction mechanism is: the sulfide of iron at first resolves into sodium disulfide, and sodium disulfide is unstable in sodium aluminate solution under the high temperature, decomposes again to generate vulcanized sodium and sodium thiosulfate, finally is oxidized to sodium sulphate and enters into solution.Because sulphur can be oxidized to sulfate gradually and accumulate on stream in alumina producing; Not only increase alkaline consumption, and technology such as can destroy that evaporation, grog are burnt till, bring no small difficulty and harm for alumina producing and operation; Therefore, sulfur-bearing bauxite also is in the state of untapped utilization always.
Along with the dilution day by day of Chinese bauxite resource, it is urgent day by day that the development and use of sulfur-bearing bauxite become.China's sulfur-type bauxite reserves account for 11% of bauxite gross reserves, are about 1.5 hundred million tons, and wherein high-grade bauxite accounts for 57.2%, and middle-low bauxite accounts for 42.8%.The research and development of flotation desulfur desilicon technology not only can solve 1.5 hundred million tons of sulfur-bearing ore resources and utilize a difficult problem, can also improve the quality of product greatly.In existing sulfur-bearing bauxite, the sulfur-bearing bauxite of high aluminium silicon ratio just can be used for alumina producing through desulfurization, and in low alumina silica ratio bauxite only desulfurization can't be used for alumina producing, must also to carry out desiliconization and improve alumina silica ratio and could use.
Existing sulfur-bearing flotation desulfur desilicon in bauxite technology is generally the two-step method desulfur desilicon, and promptly first flotation pyrite is removed and contained sulfur mineral, again flotation diaspore enriched in aluminum mineral.Concrete process is following: the sulphur in the bauxite at first by enrichment in foam, the foam of sulfur-bearing is through scanning the sulfur content of carrying the sulfur-bearing mine tailing, obtaining first foam product from failing (sulphur mine tailing) after scanning through one or many; Ore pulp after the desulfurization carries out direct-flotation desiliconisation again, and flotation froth is arrived in the diaspore enrichment that is about in the bauxite, obtains being rich in the froth concentrate product of diaspore after foam process one or many is selected; Most of aluminium silicate mineral is then stayed in the ore pulp as product from failing.Low-grade sulfur-bearing bauxite is final in the two-step method desulfur desilicon PROCESS FOR TREATMENT obtains a concentrate, and two mine tailings are totally three products.Sulfur-bearing bauxite two-step method desulfur desilicon technology has comprised the floatation process of sulfur-bearing gangue mineral and valuable mineral diaspore, therefore adopts two-step method desulfur desilicon technology to carry out the sulfur-bearing ore concentration of bauxite and has the complicated shortcoming of flow process.
Summary of the invention
The object of the invention is exactly the deficiency that exists to above-mentioned prior art, provide a kind of can be simply, the ore dressing and desiliconizing sulfur method of Rapid Realization sulfur-bearing bauxite.
The objective of the invention is to realize through following technical scheme.
A kind of ore dressing and desiliconizing sulfur method of sulfur-bearing bauxite; What it is characterized in that its ore dressing process is that adopting sulfuric acid to regulate pH is 3-6, adds inhibitor successively with behind the sulfur-bearing bauxite process ore grinding; Activator; The silicate mineral collecting agent, sulfur-bearing gangue mineral collecting agent, process is carried out flotation after stirring and sizing mixing; Through after the flotation, with silicate mineral with contain sulfur mineral be master's impurity ore particles while emersion as the foam mine tailing, the ore pulp after the flotation is as concentrate.
The ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite of the present invention is characterized in that the inhibitor that is added can be calgon, oxalic acid, and citric acid, addition are 50-500g/t.
The ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite of the present invention is characterized in that the activator that adds is a copper sulphate, vulcanized sodium, and sodium chloride, prodans etc., addition are 20-200g/t.
The ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite of the present invention is characterized in that the silicate mineral collecting agent that adds is a lauryl amine, ether amine, and quaternary amine, addition are 100-500g/t.
The ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite of the present invention is characterized in that the sulfur-bearing gangue mineral collecting agent that adds is an xanthate, and black powder, addition are 100-500 g/t.
The ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite of the present invention is characterized in that ore dressing process is that one roughing primary cleaning once purging selection, one roughing primary cleaning secondary are scanned or one roughing recleaning secondary is scanned.
The ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite of the present invention; With silicate mineral and sulfur-bearing gangue mineral is that flotation purpose mineral meet the flotation principle of " but floating few many "; As product from failing, most of diaspore is then stayed in the ore pulp as the concentrate product to the harmful silicate mineral of alumina production process flow and sulfur-bearing gangue mineral while emersion.Sulfur content through obtaining concentrate behind the step floatation desulfur desilicon drops to below 0.3%, and the concentrate alumina silica ratio improves 1-4 than raw ore.Has the advantage that technological process is simple, efficient, the flotation cost is low: aluminium oxide is smelted harmful silicate mineral and the flotation simultaneously of sulfur-bearing gangue mineral; Flow process can be effectively shortened in two kinds of mineral bulk flotations; The flotation flowsheet that is adopted is merely the half the of sulfur-bearing bauxite flotation desulfurization-direct-flotation desiliconisation two-stage flotation technology; Accordingly, ore dressing power cost also will reduce greatly.
The flotation technology of sulfide flotation technology and oxide ore can reduce or cancel the foaming agent consumption in the sulfide flotation technology, adopts method of the present invention simultaneously, has increased silicate mineral flotation froth fragility, has accelerated antifoaming speed.Successful solution sulfur-bearing bauxite mesosilicic acid salt mineral with contain the problem that removes of sulfur mineral, shortened the technological process of desulfur desilicon greatly.Adopt technology provided by the invention can realize the efficient utilization of sulfur-bearing bauxite, the important techniques support is provided, have important directive significance for the comprehensive utilization of sulfur-bearing bauxite for aluminum oxide industry enlarges the ore source.
Description of drawings
Fig. 1 is the process chart of the inventive method.
The specific embodiment
A kind of ore dressing and desiliconizing sulfur method of sulfur-bearing bauxite, its ore dressing process be with sulfur-bearing bauxite through behind the ore grinding, adopting sulfuric acid to regulate pH is 3-6; Add inhibitor successively, activator, silicate mineral collecting agent; Sulfur-bearing gangue mineral collecting agent, process carry out flotation after stirring and sizing mixing; Through after the flotation, silicate mineral in most of sulfur-bearing bauxite and sulfur-bearing gangue by enrichment in the foam as mine tailing, the ore pulp after the flotation is as concentrate.
Embodiment 1
With alumina silica ratio is 4.4, sulfur content be 1.98% low-grade sulfur-bearing bauxite as the test sample ore, adopt the technological process shown in the accompanying drawing 1 that the low-grade sulfur-bearing bauxite of this kind is carried out flotation desulfur desilicon.At first ore carry out ore grinding to 75%-fineness of 0.075mm, adopting sulfuric acid to regulate pH is 5.0, and whole flow process is added the prodan of 100g/t; The copper sulphate of 50g/t, 200g/t quaternary amine, 200g/t butyl xanthate; Adopt flow process as shown in Figure 1 to carry out flotation; Gained is swept two froth pulp and is mine tailing, and product is concentrate in the groove, and mineral processing index is seen table 1.
The floatation indicators of table 1 embodiment 1
Embodiment 2
With alumina silica ratio is 5.75, and sulfur content is 2.76%, and the sulfur-bearing bauxite of calcium sulphate content 0.5% adopts the technological process shown in the accompanying drawing 1 that the low-grade sulfur-bearing bauxite of this kind is carried out flotation desulfur desilicon as the test sample ore.At first ore carry out ore grinding to 80%-fineness of 0.075mm, adopting sulfuric acid to regulate pH is 5.0, and whole flow process is added the prodan of 100g/t; The copper sulphate of 50g/t, 200g/t quaternary amine, 300g/t butyl xanthate; Adopt flow process as shown in Figure 1 to carry out flotation; Gained is swept two froth pulp and is mine tailing, and product is concentrate in the groove, and mineral processing index is seen table 2.
The floatation indicators of table 2 embodiment 2
Embodiment 3
Sulfur-bearing bauxite be 5.74 with alumina silica ratio, through behind the ore grinding, adopting sulfuric acid to regulate pH is 3, adds inhibitor successively with sulfur-bearing bauxite, the calgon addition is 50g/t, activator is 20g/t for the copper sulphate addition.The silicate mineral collecting agent, collecting agent is 100g/t for the lauryl amine addition.Sulfur-bearing gangue mineral collecting agent is an xanthate, and addition is 100 g/t.Process is carried out flotation after stirring and sizing mixing; Through after the flotation, with silicate mineral with contain sulfur mineral be master's impurity ore particles while emersion as the foam mine tailing, ore dressing process is an one roughing primary cleaning once purging selection; Ore pulp after the flotation is as concentrate.
Embodiment 4
Sulfur-bearing bauxite be 4.5 with alumina silica ratio, through behind the ore grinding, adopting sulfuric acid to regulate pH is 5 with sulfur-bearing bauxite, adding inhibitor successively is oxalic acid, addition is 500g/t, activator is a copper sulphate, addition is 200g/t.Silicate mineral collecting agent, collecting agent are ether amine, and addition is 250 g/t.Sulfur-bearing gangue mineral collecting agent is a black powder, and addition is 250 g/t.Process is carried out flotation after stirring and sizing mixing; Through after the flotation, with silicate mineral with contain sulfur mineral be master's impurity ore particles while emersion as the foam mine tailing, ore dressing process is that one roughing primary cleaning secondary is scanned; Ore pulp after the flotation is as concentrate.
Embodiment 5
Sulfur-bearing bauxite be 5.01 with alumina silica ratio, through behind the ore grinding, adopting sulfuric acid to regulate pH is 4 with sulfur-bearing bauxite, adding inhibitor successively is citric acid, addition is 300g/t, activator is a prodan, addition is 100g/t.Silicate mineral collecting agent, collecting agent are quaternary amine sodium, and addition is 500 g/t.Sulfur-bearing gangue mineral collecting agent is a black powder, and addition is 500g/t.Process is carried out flotation after stirring and sizing mixing; Through after the flotation, with silicate mineral with contain sulfur mineral be master's impurity ore particles while emersion as the foam mine tailing, ore dressing process is that one roughing recleaning secondary is scanned; Ore pulp after the flotation is as concentrate.
Claims (6)
1. the ore dressing and desiliconizing sulfur method of a sulfur-bearing bauxite; The process that it is characterized in that its ore dressing is that adopting sulfuric acid to regulate pH is 3-6, adds inhibitor successively with behind the sulfur-bearing bauxite process ore grinding; Activator; The silicate mineral collecting agent, sulfur-bearing gangue mineral collecting agent, process is carried out flotation after stirring and sizing mixing; Through after the flotation, with silicate mineral with contain sulfur mineral be master's impurity ore particles while emersion as the foam mine tailing, the ore pulp after the flotation is as concentrate.
2. the ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite according to claim 1 is characterized in that the inhibitor that is added is calgon, sodium oxalate, citric acid, and addition is 50-500g/t.
3. the ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite according to claim 1 is characterized in that the activator that adds is copper sulphate, vulcanized sodium, sodium chloride, prodan, and addition is 20-200g/t.
4. the ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite according to claim 1 is characterized in that the silicate mineral collecting agent that adds is lauryl amine, ether amine, quaternary amine, and addition is 100-500g/t.
5. the ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite according to claim 1 is characterized in that the sulfur-bearing gangue mineral collecting agent that adds is xanthate, black powder, and addition is 100-500 g/t.
6. the ore dressing and desiliconizing sulfur method of a kind of sulfur-bearing bauxite according to claim 1 is characterized in that ore dressing process is that one roughing primary cleaning once purging selection, one roughing primary cleaning secondary are scanned or one roughing recleaning secondary is scanned.
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| CN102489406B (en) * | 2011-11-22 | 2013-04-17 | 中国铝业股份有限公司 | Method for treating sulfur bauxite |
| CN102806136A (en) * | 2012-07-27 | 2012-12-05 | 中国铝业股份有限公司 | Method for treating bauxite |
| CN103170410B (en) * | 2013-03-12 | 2014-11-26 | 广西冶金研究院 | Flotation method for reducing sulfur in bauxite concentrate |
| CN103272701B (en) * | 2013-06-08 | 2015-10-28 | 中国铝业股份有限公司 | A kind of floatation desulphurization method of high-sulfur bauxite |
| CN103691551A (en) * | 2013-12-18 | 2014-04-02 | 广西科晟达机械制造有限公司 | Method for ore dressing of bauxite |
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| CN106583056A (en) * | 2017-01-09 | 2017-04-26 | 昆明理工大学 | Depressing agent for floating lead and depressing zinc |
| CN108927291B (en) * | 2017-05-24 | 2022-10-25 | 中蓝连海设计研究院有限公司 | Combined collector for andalusite ore separation and preparation method and application thereof |
| CN110616320B (en) * | 2019-09-17 | 2020-07-31 | 北京科技大学 | Method for desiliconizing silicon-containing ore or slag |
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