CN101886179B - Method for separating ferrum, copper and silicon components from copper smelting residues - Google Patents
Method for separating ferrum, copper and silicon components from copper smelting residues Download PDFInfo
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- CN101886179B CN101886179B CN2010102237032A CN201010223703A CN101886179B CN 101886179 B CN101886179 B CN 101886179B CN 2010102237032 A CN2010102237032 A CN 2010102237032A CN 201010223703 A CN201010223703 A CN 201010223703A CN 101886179 B CN101886179 B CN 101886179B
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- 239000010949 copper Substances 0.000 title claims abstract description 82
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 79
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003723 Smelting Methods 0.000 title claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000010703 silicon Substances 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003513 alkali Substances 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 230000035484 reaction time Effects 0.000 claims abstract description 4
- 239000011734 sodium Substances 0.000 claims abstract description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims abstract description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims description 24
- 239000002956 ash Substances 0.000 claims description 24
- 239000002893 slag Substances 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000000047 product Substances 0.000 claims description 17
- 239000000706 filtrate Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 13
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Substances [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 2
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 2
- 235000011151 potassium sulphates Nutrition 0.000 claims description 2
- 239000004111 Potassium silicate Substances 0.000 claims 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims 1
- 229910052913 potassium silicate Inorganic materials 0.000 claims 1
- 238000002386 leaching Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 2
- 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 abstract 1
- 239000007791 liquid phase Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 abstract 1
- BUKHSQBUKZIMLB-UHFFFAOYSA-L potassium;sodium;dichloride Chemical class [Na+].[Cl-].[Cl-].[K+] BUKHSQBUKZIMLB-UHFFFAOYSA-L 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 20
- 239000012065 filter cake Substances 0.000 description 15
- 239000007788 liquid Substances 0.000 description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000012047 saturated solution Substances 0.000 description 4
- 239000001117 sulphuric acid Substances 0.000 description 4
- 235000011149 sulphuric acid Nutrition 0.000 description 4
- 229910052840 fayalite Inorganic materials 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000722270 Regulus Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for separating components, i.e. ferrum, copper, silicon, and the like, from copper smelting waste residues, which comprehensively recovers Si, Cu, Fe, and the like contained in the copper residues by using the copper smelting waste residues as raw materials and adopting thermal chemical reaction, water leaching and acid leaching or the conventional beneficiation technology so as to realize the resource recycling of the copper smelting waste residues. The method comprises the following steps of: mainly mixing alkali and the copper smelting waste residues according to a certain proportion to carry out heating reaction; selecting residue-alkali ratio, heating temperature and heat reaction time according to copper residue composition, and then firstly separating silicon dioxide entering a liquid phase in terms of sodium (potassium) silicate through the water leaching, filtering and washing; carrying out further acid (hydrochloric acid or sulfuric acid) adding treatment on a silicate solution so as to obtain a finished product of white carbon black through sedimentation, filtering and the drying of filter residues; concentrating filter liquor so as to obtain a saturated sodium (potassium) chloride/sodium (potassium) sulfate solution (recycled for recycling in an alkali industry); and further separating water leaching residues through acid leaching or the conventional beneficiation method so as to recover copper, ferrum, and the like.
Description
Technical field
The present invention relates to the metal metallurgy smelting production field, particularly relate to copper smelting slag application technology as the second resource processing method.
Background technology
Copper slag is mainly derived from pyrometallurgical smelting process, such as reverberatory smelting, Flash Smelting Furnace melting, Noranda process, Ai Safa, electric furnace etc.According to statistics, the annual copper ashes quantum of output of China is more than 8,000,000 tons.Because production technique is different, the Chemical Composition of copper ashes also has different, all contains a large amount of valuable metal element, especially SiO in the copper ashes
2(W
SiO2=22～40%), Cu (W
Cu=0.5～5% and Fe (W
Fe22～63%).And the phase in the copper ashes is mainly fayalite, the glassiness, ferriferous oxide, copper matte regulus (Cu
2The S-FeS Solid solution) metallic iron of feldspar and minute quantity and metallic copper etc.Existing main methods is that these waste residues are directly stacked, and has so namely taken the soil, has caused again significant wastage and the environmental pollution of the resources such as copper, silicon, iron.At present both at home and abroad the method processed of copper ashes mainly contain pyrogenic process dilution (such as reverberatory furnace dilution, electric furnace process etc.), beneficiating method, wet-leaching (comprise direct leaching, indirectly leach and Bioleaching) and the hot method of pyrocarbon, only can reclaim in the copper ashes than small part Fe and Cu, the rate of recovery is lower, cost recovery is higher, and the recycling rate is extremely low.In addition, because copper ashes has good physical and mechanical properties, for the production of irony cement, abrasive material tools or as pavior, caused the resource serious waste on a small quantity.Under the severe situation of China's existing resource scarcity, exploitation copper ashes comprehensive utilization of resources technology has important strategic importance and realistic meaning to promoting recycling economy and Sustainable development and environment protection.
The maximum difficult point that exists at present: copper, iron in the copper ashes, the silicon mosaic granularity is superfine and be evenly distributed, and multi mineral is wrapped up mutually, makes hard, the stable chemical nature of its compact structure, and prior art is difficult to separate, and the recycling rate is extremely low.In addition, be with ferrosilicate, martial ethiops, fayalite (2FeOSiO
2), magnetite (Fe
3O
4) and the amorphous glass body that forms of some gangues.The fayalite proportion of weak magnetic is larger, and the magnetic method divided silicon can't be realized, has limited its direct application in ironmaking production, thereby has caused the significant wastage of iron resources.Moreover surperficial quasi-vitreous, beneficiation reagent are difficult to be applied to the wherein copper of parcel, cause existing beneficiation method effectiveness lower.
Summary of the invention
Problem for above-mentioned prior art existence, the present invention proposes Fe, the Cu in employing thermal chemical reaction, water logging and acidleach or the conventional beneficiation method Recovering Copper slag, Si etc. take copper smelting slag as raw material, copper ashes and alkali are mixed in proportion, get final product through reacting by heating, water logging, filtration, selective separation, then the method for separating ferrum, copper, silicon components from copper smelting slag.
The present invention a kind of from copper smelting slag the method for separating ferrum, copper, silicon components, it is characterized in that Fe, Cu, Si in employing thermal chemical reaction, water logging and acidleach or the conventional beneficiation method Recovering Copper slag take copper smelting slag as raw material, copper ashes and alkali are mixed in proportion, through reacting by heating, water logging, filtration, selective separation.
Concrete technology may further comprise the steps: copper ashes and alkali are mixed in proportion, and the reacting by heating temperature is controlled between 350-950 ℃, and slag alkali is than control 1: 0.37～2.6, and the reaction times is 0.3-5.0 hour; Then adopt water logging, get after filtration filtrate and filter residue; Filtrate is sodium silicate solution, and filtrate is by acid adding, and pH=3-6 is controlled in neutralization, and through precipitation, filtration, washing, the filter residue drying can obtain the finished product white carbon black; Concentrating filter liquor can make saturated sodium-chloride or Repone K/sodium sulfate or potassium sulfate solution; Fe, Cu enter filter residue after the water logging, and filter residue is through being recyclable copper, iron by acidleach or conventional beneficiation method further.
Described copper ashes is milled to the following or direct hot melt of 1.0mm.
The alkali of described copper ashes and alkali is KOH, NaOH or Na
2CO
3
Described filtrate is hydrochloric acid or sulfuric acid by the acid of acid adding.
The present technique method compared with prior art has following features:
1, present technique has comprehensive utilization of resources rate height, tooling cost is low, technical process is short, added value of product is high; The silicon dioxide rate of recovery 〉=90%, copper recovery 〉=85%, iron recovery 〉=85%.
2, treating processes non-wastewater discharge, processing wastewater can be realized zero release.
3, treating processes produces without solid waste, and the solid waste comprehensive utilization ratio reaches 100%.
4, can effectively utilize the deslagging waste heat, realize energy-saving and emission-reduction.
Description of drawings
Fig. 1 production process route figure of the present invention.
Embodiment
Further specify flesh and blood of the present invention below in conjunction with accompanying drawing with example, but content of the present invention is not limited to this.
Main technique of the present invention may further comprise the steps: with copper ashes and alkali (KOH, NaOH, Na
2CO
3) mix by a certain percentage; The reacting by heating temperature is controlled between 350-950 ℃, slag alkali mass ratio control 1: 0.37～2.6, and the reaction times is 0.3-5.0 hour; Then adopt water logging, get after filtration filtrate and filter residue, filtrate is water glass (potassium) solution, and Fe, Cu etc. enters filter residue.Filtrate is by acid adding (hydrochloric acid or sulfuric acid) neutralization control pH=3-6, and through precipitation, filtration, the filter residue drying can obtain the finished product white carbon black; Concentrating filter liquor can make saturated sodium-chloride (potassium)/sodium sulfate (potassium) solution.The filter residue that obtains after the water logging is through being recyclable copper, iron etc. by acidleach or conventional beneficiation method further.
Embodiment 1: copper ashes is milled to weigh below the 1.0mm 40g and sodium hydroxide mixes at 1: 0.37 by slag alkali weight ratio, place retort furnace to be heated to 550 ℃, constant temperature 3 hours, take out when treating that temperature is down to 150 ℃ of left and right sides and place hot water (400ml) to carry out water logging (2 hours), through precipitation, solid-liquid separation.Filter cake is washed twice and is carried out acidleach with dilute sulphuric acid and carry copper (make copper-bath, copper recovery is 85%) afterwards; Again after filtration, wash, dry and to get iron oxide product (iron recovery is 92%).Water logging filtered liquid acid neutralization is regulated pH=4.5, and through precipitation, solid-liquid separation, filter cake washes twice, and the filter cake drying gets finished product white carbon black (the silicon rate of recovery reaches 92%); Concentrating filter liquor is to the saturated sodium chloride saturated solution product that gets.
Embodiment 2: copper ashes is milled to the 40g that weighs below the 0.6mm, mix at 1: 2.5 by slag alkali weight ratio with sodium hydroxide, place retort furnace to be heated to 350 ℃, isothermal reaction 2 hours, take out when treating that temperature is down to 150 ℃ of left and right sides and place hot water (400ml) to carry out water logging (1 hour), through precipitation, solid-liquid separation; Filter cake is washed twice and is carried out acidleach with dilute sulphuric acid and carry copper (make copper-bath, copper recovery is 90%) afterwards, refilters, dries and to get iron oxide product, and iron recovery is 95%.Water logging filtrate adds in the hydrochloric acid and regulates pH=3, and through solid-liquid separation, filter cake washes twice, and the filter cake drying gets finished product white carbon black (the silicon rate of recovery reaches 96%); Concentrating filter liquor is to the saturated sodium chloride saturated solution product that gets.
Embodiment 3: with the powdery copper ashes 40g that weighs, mix at 1: 0.6 by slag alkali weight ratio with potassium hydroxide, place retort furnace to be heated to 500 ℃, constant temperature 3 hours, take out when treating that temperature is down to 200 ℃ of left and right sides and place hot water (400ml) to carry out water logging (2 hours), through precipitation, solid-liquid separation; Filter cake is washed twice and is carried out acidleach with dilute sulphuric acid and carry copper (make copper-bath, copper recovery is 88%) afterwards, refilters, dries to such an extent that the iron oxide product iron recovery is 95%.Filtrate adds in the hydrochloric acid and regulates pH value to 6, and through solid-liquid separation, filter cake washes twice, and the filter cake drying gets finished product white carbon black (the silicon rate of recovery reaches 94%); Concentrating filter liquor is to the saturated saturated potassium chloride solution product that gets.
Embodiment 4: copper ashes is milled to weigh below the 0.6mm 40g and yellow soda ash mixes at 1: 2.6 by slag alkali weight ratio, place retort furnace to be heated to 850 ℃, constant temperature 1 hour, take out when treating that temperature is down to 150 ℃ of left and right sides and place hot water (400ml) to carry out water logging (5 hours), precipitation, solid-liquid separation.Filter cake washes twice, and ferric oxide (rate of recovery is 85%) is isolated in dry, broken, magnetic separation, and the recovery of copper rate is 87%; Add salt acid for adjusting pH value to 5 in the filtrate, precipitation, solid-liquid separation, filter cake washes twice, and the filter cake drying gets white carbon black (the silicon rate of recovery reaches 95%); Concentrating filter liquor is to the saturated sodium chloride saturated solution product that gets.
Embodiment 5: the copper ashes 40g that weighs is put into reactor and is heated to 950 ℃, sodium hydroxide is by the slag alkali weight ratio heat fused of weighing at 1: 1, then slag is slowly inserted in the sodium hydroxide molten bath of fusing, after 18 minutes kinds of question response, place hot water (500ml) to carry out water logging (3 hours), through precipitation, solid-liquid separation.Filter cake is washed twice and is carried out acidleach with dilute sulphuric acid and carry copper (make copper-bath, copper recovery is 91%) afterwards, refilters, dries and to get iron oxide product, and iron recovery is 96%.The water logging filtered liquid adds in the sulfuric acid and regulates pH=4, and through solid-liquid separation, filter cake washes twice, and the filter cake drying gets finished product white carbon black (the silicon rate of recovery reaches 93%); Concentrating filter liquor is to the saturated sodium sulfate saturated solution product that gets.
Claims (4)
1. the method for a separating ferrum from copper smelting slag, copper, silicon components, it is characterized in that: adopt Fe, Cu, Si in thermal chemical reaction, water logging and the conventional beneficiation method Recovering Copper slag take copper smelting slag as raw material, copper ashes and alkali are mixed in proportion, through reacting by heating, water logging, filtration, selective separation;
Concrete technology may further comprise the steps: copper ashes and alkali are mixed in proportion, and the reacting by heating temperature is controlled between 350 ℃～950 ℃, and slag alkali is than control 1: 0.37～2.6, and the reaction times is 0.3～5.0 hour; Then adopt water logging, get after filtration filtrate and filter residue; Filtrate is water glass or potassium silicate solution, and filtrate is by acid adding, and pH=3～6 are controlled in neutralization, and through precipitation, filtration, washing, the filter residue drying can obtain the finished product white carbon black; Concentrating filter liquor can make saturated sodium-chloride or Repone K/sodium sulfate or potassium sulfate solution; Fe, Cu enter filter residue after the water logging, and filter residue is through being recyclable copper, iron by conventional beneficiation method further.
As claimed in claim 1 from copper smelting slag the method for separating ferrum, copper, silicon components, it is characterized in that: described copper ashes is milled to the following or direct hot melt of 1.0mm.
As claimed in claim 1 from copper smelting slag the method for separating ferrum, copper, silicon components, it is characterized in that: the alkali of described copper ashes and alkali is KOH, NaOH or Na
2CO
3
As claimed in claim 1 from copper smelting slag the method for separating ferrum, copper, silicon components, it is characterized in that: described filtrate is hydrochloric acid or sulfuric acid by the acid of acid adding.
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| CN2010102237032A CN101886179B (en) | 2010-07-12 | 2010-07-12 | Method for separating ferrum, copper and silicon components from copper smelting residues |
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| CN2010102237032A CN101886179B (en) | 2010-07-12 | 2010-07-12 | Method for separating ferrum, copper and silicon components from copper smelting residues |
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| CN103882235B (en) * | 2014-04-15 | 2015-08-19 | 中国地质科学院矿产综合利用研究所 | Method for step recovery of iron, copper and noble metal from copper smelting waste slag |
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| CN113120911B (en) * | 2021-04-20 | 2023-09-12 | 昆明理工大学 | Method for ultrasonically reinforcing and separating silicon and iron in copper smelting slag and preparing white carbon black by utilizing silicon |
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| CN101100708A (en) * | 2006-07-07 | 2008-01-09 | 隋智通 | Method for separating iron and copper from copper smelt slag |
| CN101555551A (en) * | 2009-05-22 | 2009-10-14 | 昆明理工大学 | Method for comprehensively recovering Fe, Cu and Si from copper smelting slag |
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| CN101555551A (en) * | 2009-05-22 | 2009-10-14 | 昆明理工大学 | Method for comprehensively recovering Fe, Cu and Si from copper smelting slag |
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