CN103695635A - Method for treating high-iron and multi-metal zinc concentrate - Google Patents
Method for treating high-iron and multi-metal zinc concentrate Download PDFInfo
- Publication number
- CN103695635A CN103695635A CN201310682040.4A CN201310682040A CN103695635A CN 103695635 A CN103695635 A CN 103695635A CN 201310682040 A CN201310682040 A CN 201310682040A CN 103695635 A CN103695635 A CN 103695635A
- Authority
- CN
- China
- Prior art keywords
- zinc
- indium
- distillation
- tin
- blowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for treating high-iron and multi-metal zinc concentrate. The method comprises the following steps of: boiling and roasting zinc concentrate containing 14-20 percent of Fe, 0.03-0.10 percent of In, 0.2-0.6 percent of Cu, 0.2-0.6 percent of Cd, 0.005-0.02 percent of Ag. 0.1-0.2 percent of Sn and 40-50 percent of Zn to produce flue gas and a roasted product; preparing sulfuric acid by using the flue gas; blending the roasted product in a reducing agent to be reduced and smelted to produce a crude zinc alloy, crude silver-containing copper and furnace cinder; blowing the furnace cinder to obtain soot and blown furnace cinder, returning the soot to be reduced and smelted, and selling the blown furnace cinder; extracting copper and silver from crude silver-containing copper; enabling the crude zinc alloy to enter a conventional distillation tower for performing four stages of distillation to produce a pyrogenic process distilled zinc product, a crude cadmium product and a high-indium, tin and zinc alloy; extracting indium and tin from the high-indium, tin and zinc alloy. The method is reasonable in process, good in comprehensive recovery, high in production efficiency, low in product cost, and clean and environment-friendly in production process.
Description
Technical field
The present invention relates to a kind of non-ferrous metal metallurgy method, particularly a kind for the treatment of process of many metallic zinc of the high ferro concentrate containing Fe14～20%, In0.03～0.10%, Cu0.2～0.6%, Cd0.2～0.6%, Ag0.01～0.02%, Sn0.1～0.2%, Zn40～50%.
Background technology
At present, process many metallic zinc of the high ferro concentrate containing Fe14～20%, In0.03～0.10%, Cu0.2～0.6%, Cd0.2～0.6%, Ag0.01～0.02%, Sn0.1～0.2%, Zn40～50%, the treatment process of extracting zinc and reclaiming multiple valuable metal mainly contains following three kinds:
The first treatment process is to adopt the conventional wet processing flow process that leaches.This flow process adopts the desulfurization of zinc ore concentrate boiling roaster, and--zinc baking sand is neutral, and----scavenging solution electrodeposition is produced electric zinc--low acid leaching slag floatation recovery silver--, and the Zinc hydrometallurgy process of zinc indium tin is reclaimed in floating silver-colored tailings reduction volatilization for middle supernatant solution replacement extraction copper, cadmium with low acid two sections of counterflow leachings.Adopt this technical process, zinc, indium, copper, cadmium, silver, tin have all obtained recycling, the rate of recovery of zinc reaches 94%, in production process, waste residue has obtained innoxious governance, processing wastewater can be accomplished effectively process and recycle, waste gas reaches national emission standard discharge, production process clean environment firendly.The main drawback of this treatment process is: a leaching yield of (1) zinc is low, and Rotary Kiln treatment capacity is large, need to consume a large amount of coal tars; (2), when Rotary Kiln is processed floating silver-colored tailings, the sulfur dioxide flue gas of output need to, through administering, just can reach discharging standards; (3) various recovery rate of valuable metals are low, indium recovery 75%, and copper recovery 80%, the cadmium rate of recovery 75%, silver raising recovery rate 40%, the tin rate of recovery 50%, has had a strong impact on benefit.
The second treatment process is electric furnace reduction melting thermal process flow process.This flow process adopt zinc ore concentrate boiling roaster desulfurization--the strong retailoring output of the zinc baking sand cupric pig iron and crude zinc alloy and smelting slag--the high-copper pig iron and smelting slag for sale-crude zinc alloy output zinc product, thick cadmium product and high indium red brass-high indium stannum alloy after multistage distillation reclaims the pyrometallurgy of zinc technique of indium tin.Adopt this technical process, zinc, cadmium obtain higher recovery, and zinc reaches 95%, and cadmium reaches 90%, and iron has obtained recycling, and in raw material, 70% iron becomes cast iron product, and in production process, waste residue has obtained innoxious governance, there is no processing wastewater output.The main drawback of the method is: in (1) electric furnace reduction fusion process, consume a large amount of electric energy and go back raw coal, production cost is high; (2) because electric furnace adopts strong retailoring, process carbon monoxide concentration is very high, has the potential safety hazard of carbon monoxide poisoning and electric furnace bleed blast; (3) processing of the cupric pig iron does not have good method, cannot reclaim copper and the pig iron simultaneously; (4) smelting recovery of indium, silver, tin is low, and the rate of recovery of indium is 75%, the rate of recovery of silver is 50%, the rate of recovery of tin is 60%, has affected economic benefit.
The third treatment process is the heavy iron indium wet processing flow process of siderotil method.This flow process adopts the desulfurization of zinc ore concentrate boiling roaster, and----siderotil method sink iron indium, and--copper, cadmium are reclaimed in middle supernatant solution displacement--purify electrodeposition and produce electric zinc--, and height soaks the Zinc hydrometallurgy process of slag, iron vitriol slag reduction volatilization recovery zinc indium tin silver to low Senior Three section refluent heat Ore Leaching in zinc baking sand.Adopt this technical process, zinc obtains higher leaching yield, and copper, the cadmium rate of recovery are higher, and copper reaches 90%, cadmium reaches 88%, and in production process, waste residue has obtained innoxious governance, and processing wastewater can be accomplished effectively process and recycle.The main drawback of the method is: it is large that (1) iron vitriol slag and height soak the slag quantity of slag, at rotary kiln, carries out when reduction volatilization is processed consuming a large amount of cokes, and production cost is high; (2) iron vitriol slag and high soaking in slag are contained a large amount of sulfate radicals, in rotary kiln reduction volatilization process, decomposite a large amount of sulfur dioxide gas, after reduction volatilization flue gas need to absorb and process, and could qualified discharge.(3) smelting recovery of indium, silver, tin is low, and the rate of recovery of indium is 80%, the rate of recovery of silver is 30%, the rate of recovery of tin is 60%, has affected economic benefit.
Summary of the invention
The treatment process that the object of this invention is to provide a kind of many metallic zinc of high ferro concentrate, make containing Fe14～20%, In0.03～0.10%, Cu0.2～0.6%, Cd0.2～0.6%, Ag0.01～0.02%, Sn0.1～0.2%, the zinc ore concentrate of Zn40～50% is realized zinc, indium, copper, cadmium, silver, the high efficiente callback of tin metal, and make the most of iron in zinc ore concentrate be converted into the harmless slag of high temperature, there is technical process reasonable, production efficiency is high, production cost is low, the advantage that metal recovery rate is high, technological process has been avoided the output of low-concentration sulfur dioxide, there is no processing wastewater output, waste residue has obtained innoxious governance, effectively protected environment.
The present invention is by achieving the above object by the following technical solutions: a kind for the treatment of process of many metallic zinc of high ferro concentrate, be by the zinc ore concentrate containing Fe14～20%, In0.03～0.10%, Cu0.2～0.6%, Cd0.2～0.6%, Ag0.01～0.02%, Sn0.1～0.2%, Zn40～50%, by following sequential steps, undertaken:
(1) fluidized bed roasting: described zinc ore concentrate adds boiling roaster desulfurization, maturing temperature 880-940 ℃, output sulfur dioxide flue gas and calcining, sulfur dioxide flue gas extracting sulfuric acid;
(2) retailoring: calcining is allocated the electric furnace entering with lead-splash condenser after 20～25% reductive agent into and carried out retailoring, 1300～1400 ℃ of smelting temperatures, output crude zinc alloy, argentiferous blister copper and slag;
(3) fuming blowing: slag enters fuming furnace or the blowing of Chinese mugwort Sa stove, 1250～1350 ℃ of blowing temperature, duration of blast is 4 hours, output flue dust and fuming furnace blowing slag or Chinese mugwort Sa stove blowing slag, flue dust returns to step (2) retailoring; Fuming furnace blowing slag or the blowing of Chinese mugwort Sa stove, blowing slag is for sale;
(4) copper silver recovery: argentiferous blister copper obtains electrolysis cathode copper products and silver anode slime after adopting traditional blister copper electrolysis process to process, and cathode copper product is for sale, and silver anode slime is produced thick silver products;
(5) level Four distillation: crude zinc alloy enters plumbous tower and carries out one-level distillation, 860～920 ℃ of one-level distillation temperatures, liquid at the bottom of output Zn-Cd alloy and zinc indium tin; Zn-Cd alloy enters cadmium tower and carries out secondary distillation, 810～850 ℃ of secondary distillation temperature, and output pyrogenic process distilled zinc and high cadmium zinc alloy, pyrogenic process distilled zinc is through the cooling zinc ingot metal product that obtains of casting; High cadmium zinc alloy enters cryogenic columns and carries out three-stage distillation, and 700～740 ℃ of three-stage distillation temperature obtain thick cadmium product and low cazin, and low cazin returns to cadmium tower and carries out secondary distillation; At the bottom of zinc indium tin, liquid enters high temperature tower and carries out level Four distillation, 1020～1100 ℃ of level Four distillation temperatures, and the high indium red brass of output and high temperature crude zinc, high temperature crude zinc returns to plumbous tower and carries out one-level distillation;
(6) indium tin reclaims: high indium red brass adopts Mechanical Crushing, dilute sulphuric acid dissolving, P204 organic substance extraction, hydrochloric acid back extraction, the heavy tin of soda ash, zinc ingot metal displacement, thick indium electrolysis process to extract indium, tin, produces smart indium product and reclaims tin raw material.
Outstanding effect of the present invention is:
(1) technical indicator is advanced.Adopt the present invention, make Zinc in Zinc Concentrates, indium, copper, cadmium, silver, tin all obtain high efficiente callback, zinc metal total yield is 95%, and indium metal total yield is 90%, and the rate of recovery of copper is 95%, the rate of recovery of cadmium is 95%, the rate of recovery of silver is 90%, the rate of recovery of tin is 80%.In the present invention, owing to having used retailoring technology and slag fuming blowing technology simultaneously, through retailoring output blister copper, guaranteed the high efficiente callback of copper silver, by fuming furnace or Chinese mugwort Sa stove fuming blowing, effectively reduce zinc, indium, the tin content of waste, reach the object of high efficiente callback indium, tin.Because zinc, indium, copper, cadmium, silver, tin have all obtained high efficiente callback utilization, thereby increased considerably economic benefit.
(2) process optimization.Owing to having adopted slag fuming blowing technology, guaranteed the high efficiente callback of zinc, indium, tin, also can reduce reducing atmosphere in electric furnace reduction fusion process and the reduction of reduction temperature reducing atmosphere simultaneously, reduced the reduction consumption of coal in retailoring process, the reduction of reduction temperature, reduce the power consumption in retailoring process, thereby significantly reduced the manufacturing cost of retailoring process.In retailoring process, the zinc indium tin cadmium that enters lead-splash condenser is separated out from plumbous liquid surface when cooling, form crude zinc alloy, crude zinc alloy, in follow-up multistage distillation sepn process, utilizes the boiling-point difference of different metal, carries out physical sepn, chemical reaction does not occur, and these still-process have the advantages such as plant efficiency is high, energy consumption is low, metal loss is little, production cost is low, site environment is good, level of automation is high, metal separation is thorough.The high indium red brass that distillation obtains through the high temperature tower fourth stage, reaches more than 5% containing In, from high indium red brass, extracts indium to output essence indium product, and the production cost of smart indium product per ton only needs 200,000 yuan; And from argentiferous blister copper electrolysis production cathode copper product, cathode copper per ton only needs 500 yuan of production costs, from the anode mud of copper electroplating, produce thick silver products, the production cost of thick silver products per ton only needs 300,000 yuan, and the tin raw material reclaiming in putting forward indium process stanniferously reaches 50%, can be used as the high quality raw material that tin is smelted, therefore, the high efficiente callback of copper, silver, indium, tin, has created significant economic benefit.
(3) energy-conserving and environment-protective.Sulphur in concentrate thoroughly changes sulfurous gas in During The Fluidized Bed Roast, last extracting sulfuric acid, and in follow-up technological process, and the sulfur dioxide gas of output lower concentration no longer, therefore, in technological process of the present invention, the gas of output can qualified discharge.Iron in concentrate and silicon-dioxide, calcium oxide form the polynary slag of high-temperature fusion, have obtained innoxious governance, become the desirable feedstock of cement industry; Zinc in concentrate, indium, copper, cadmium, silver, tin have all obtained recycling, and whole technological process is the harmful slag of output not.Because the present invention has adopted full thermal process, there is no processing wastewater output.
Figure of description
Fig. 1 is the process flow sheet of the treatment process of many metallic zinc of high ferro concentrate of the present invention.
Embodiment
Embodiment 1
The present embodiment is the first example of the treatment process of many metallic zinc of high ferro concentrate of the present invention, comprises the steps:
(1) fluidized bed roasting: will be containing the zinc ore concentrate of Fe14%, In0.03%, Cu0.2%, Cd0.2%, Ag0.01%, Sn0.1%, Zn40%, S28%, with the speed of 11t/h, add 48m
2in fluidizing furnace, carry out desulfurization with roasting technique, 880 ℃ of maturing temperatures, the air amount of sending into 27000Nm
3/ h, and with 26000Nm
3the speed output of/h is containing SO
28%, O
29% flue gas and with the speed output calcining of 10t/h, sulfur dioxide flue gas extracting sulfuric acid;
(2) retailoring: allocate into after reductive agent by calcining weight 20%, be furnished with go back raw coal calcining mixture with 4t/(h. platform) speed enter respectively 3 4000kVA electric furnaces with lead-splash condenser and carry out retailoring, smelting temperature is 1300 ℃, every stove slagging every day 2 times, put zinc 2 times, put blister copper once, every day, common property went out containing Zn98.9%, In0.043%, Cu0.02%, Cd0.55%, the crude zinc alloy 92t of Sn0.14%, containing Cu85.3%, Fe3.1%, In0.018%, Ag4.3%, the blister copper 0.6t of Sn6.7% and containing Fe27.2%, Zn10.5%, In0.03%, Cu0.015%, Cd0.008%, Ag0.0006%, the slag 135t of Sn0.07%,
(3) fuming blowing: slag by every stove respectively 11.25t enter 2 4m
2fuming furnace carry out fuming blowing, 1250 ℃ of blowing temperature, the blowing cycle is 4 hours, 2 stoves, 12 stoves that blow altogether every day, common property goes out containing the flue dust 20t of Zn49%, Fe2.4%, In0.13%, Cu0.002%, Cd0.03%, Ag0.001%, Sn0.24% with containing Fe26.4%, Zn2.8%, In0.008%, Cu0.014%, Cd0.002%, Ag0.0005%, Sn0.02% fuming furnace blowing slag 140t, and flue dust returns to step (2) retailoring; Every day, the fuming furnace blowing slag 140t of output was for sale;
(4) copper silver recovery: every day output argentiferous blister copper 0.6t, after adopting traditional blister copper electrolysis process to process, obtain containing the electrolysis cathode copper products 0.47t of Cu99.95% with containing Ag21.4%, Cu33.1% silver anode slime 0.12t, cathode copper product is for sale, silver anode slime, after wet method is extracted, is produced the thick silver products 0.027t containing Ag91%;
(5) level Four distillation: every day output 92 tons of crude zinc alloys, with 1.28t/(h* platform) speed enter respectively 3 plumbous towers that formed by 55 1372mm * 762mm carbon silicon tower trays and carry out one-level distillation, 860 ℃ of one-level distillation temperatures, output Zn-Cd alloy 1.08t/(h* platform) liquid 0.20t/(h* platform and at the bottom of zinc indium tin); Zn-Cd alloy enters with 3.24t/h the cadmium tower being comprised of 60 1372mm * 762mm carbon silicon tower trays and carries out secondary distillation, 810 ℃ of secondary distillation temperature, output pyrogenic process distilled zinc 2.7t/h and high cadmium zinc alloy 0.54t/h, pyrogenic process distilled zinc is through the cooling zinc ingot metal product obtaining containing Zn99.997%, Fe0.0004%, In0.0003%, Cu0.0002%, Cd0.0002%, Ag0.0001%, Sn0.0003% of casting; The speed of high cadmium zinc alloy 3.24t/h enters the cryogenic columns being comprised of 50 1372mm * 762mm carbon silicon tower trays and carries out three-stage distillation, 700 ℃ of three-stage distillation temperature, obtain thick cadmium product 0.13t/h and low cazin 3.11t/h containing Cd92.6%, low cazin returns to cadmium tower and carries out secondary distillation; At the bottom of zinc indium tin, liquid enters with the speed of 2.0t/h the high temperature tower being comprised of 58 1372mm * 762mm carbon silicon tower trays and carries out level Four distillation, 1020 ℃ of level Four distillation temperatures, output is containing high indium red brass 0.1t/h and the high temperature crude zinc 1.9t/h of In5.35%, Sn17.4%, Zn77.1%, and high temperature crude zinc returns to plumbous tower and carries out one-level distillation;
(6) indium tin reclaims: containing the high indium red brass of In5.35%, Sn17.4%, adopt " Mechanical Crushing, dilute sulphuric acid dissolving, P204 organic substance extraction, hydrochloric acid back extraction, the heavy tin of soda ash, zinc ingot metal displacement, thick indium electrolysis " technique, every batch processed 1.0t, output also reclaims the tin raw material 0.33t containing Sn51.8% containing the smart indium product 0.053t of In99.996%.
Embodiment 2
The present embodiment is the second example of the treatment process of a kind of many metallic zinc of high ferro concentrate of the present invention:
(1) fluidized bed roasting: will be containing the zinc ore concentrate of Fe17%, In0.07%, Cu0.4%, Cd0.4%, Ag0.015%, Sn0.15%, Zn45%, S30%, with the speed of 10t/h, add 43m
2in fluidizing furnace, carry out desulfurization with roasting technique, 910 ℃ of maturing temperatures, the air amount of sending into 26000Nm
3/ h, and with 25000Nm
3the speed output of/h is containing SO
28.2%, O
28.7% flue gas and with the speed output calcining of 9t/h, sulfur dioxide flue gas extracting sulfuric acid;
(2) retailoring: allocate into after reductive agent by calcining weight 22.5%, be furnished with go back raw coal calcining mixture with 3.675t/(h* platform) speed enter respectively 3 4000kVA electric furnaces with lead-splash condenser and carry out retailoring, smelting temperature is 1350 ℃, every stove slagging every day 2 times, put zinc 2 times, put blister copper once, every day, common property went out containing Zn98.5%, In0.14%, Cu0.03%, Cd0.97%, the crude zinc alloy 95t of Sn0.19%, containing Cu83.1%, Fe2.8%, In0.021%, Ag3.1%, the blister copper 1.1t of Sn4.8% and containing Fe34.5%, Zn12.3%, In0.023%, Cu0.03%, Cd0.01%, Ag0.001%, the slag 117t of Sn0.11%,
(3) fuming blowing: slag by every stove respectively 9.75t enter 2 4m
2fuming furnace carry out fuming blowing, 1300 ℃ of blowing temperature, the blowing cycle is 4 hours, 2 stoves, 12 stoves that blow altogether every day, common property goes out containing the flue dust 20t of Zn51%, Fe2.6%, In0.07%, Cu0.002%, Cd0.04%, Ag0.0012%, Sn0.33% with containing Fe31.3%, Zn3.2%, In0.012%, Cu0.027%, Cd0.003%, Ag0.001%, Sn0.03% fuming furnace blowing slag 130t, and flue dust returns to step (2) retailoring; Every day, the fuming furnace blowing slag 130t of output was for sale;
(4) copper silver recovery: every day output argentiferous blister copper 1.1t, after adopting traditional blister copper electrolysis process to process, obtain containing the electrolysis cathode copper products 0.86t of Cu99.95% with containing Ag14.8%, Cu23.5% silver anode slime 0.23t, cathode copper product is for sale, silver anode slime, after wet method is extracted, is produced the thick silver products 0.037t containing Ag92%;
(5) level Four distillation: every day output 95 tons of crude zinc alloys, with 1.32t/(h* platform) speed enter respectively 3 plumbous towers that formed by 56 1372mm * 762mm carbon silicon tower trays and carry out one-level distillation, 890 ℃ of one-level distillation temperatures, output Zn-Cd alloy 1.1t/(h* platform) liquid 0.22t/(h* platform and at the bottom of zinc indium tin); Zn-Cd alloy enters with 3.3t/h the cadmium tower being comprised of 60 1372mm * 762mm carbon silicon tower trays and carries out secondary distillation, 830 ℃ of secondary distillation temperature, output pyrogenic process distilled zinc 2.7t/h and high cadmium zinc alloy 0.6t/h, pyrogenic process distilled zinc is through the cooling zinc ingot metal product obtaining containing Zn99.996%, Fe0.0003%, In0.0003%, Cu0.0002%, Cd0.0002%, Ag0.0001%, Sn0.0002% of casting; The speed of high cadmium zinc alloy 3.6t/h enters the cryogenic columns being comprised of 55 1372mm * 762mm carbon silicon tower trays and carries out three-stage distillation, 720 ℃ of three-stage distillation temperature, obtain thick cadmium product 0.24t/h and low cazin 3.36t/h containing Cd91.9%, low cazin returns to cadmium tower and carries out secondary distillation; At the bottom of zinc indium tin, liquid enters with the speed of 2.2t/h the high temperature tower being comprised of 58 1372mm * 762mm carbon silicon tower trays and carries out level Four distillation, 1060 ℃ of level Four distillation temperatures, output is containing high indium red brass 0.1t/h and the high temperature crude zinc 2.1t/h of In15.55%, Sn21.9%, Zn65.7%, and high temperature crude zinc returns to plumbous tower and carries out one-level distillation;
(6) indium tin reclaims: containing the high indium red brass of In15.55%, Sn21.9%, adopt " Mechanical Crushing, dilute sulphuric acid dissolving, P204 organic substance extraction, hydrochloric acid back extraction, the heavy tin of soda ash, zinc ingot metal displacement, thick indium electrolysis " technique, every batch processed 1.0t, output also reclaims the tin raw material 0.401t containing Sn52.3% containing the smart indium product 0.152t of In99.996%.
Embodiment 3
The present embodiment is the 3rd example of the treatment process of a kind of many metallic zinc of high ferro concentrate of the present invention:
(1) fluidized bed roasting: will be containing the zinc ore concentrate of Fe20%, In0.10%, Cu0.6%, Cd0.6%, Ag0.02%, Sn0.2%, Zn50%, S32%, with the speed of 25t/h, add 109m
2in fluidizing furnace, carry out desulfurization with roasting technique, 940 ℃ of maturing temperatures, the air amount of sending into 72000Nm
3/ h, and with 70000Nm
3the speed output of/h is containing SO
28.2%, O
28.7% flue gas and with the speed output calcining of 22t/h, sulfur dioxide flue gas extracting sulfuric acid;
(2) retailoring: allocate into after reductive agent by calcining weight 25%, be furnished with go back raw coal calcining mixture with 5.5t/(h* platform) speed enter respectively 5 6000kVA electric furnaces with lead-splash condenser and carry out retailoring, smelting temperature is 1400 ℃, every stove slagging every day 2 times, put zinc 2 times, put blister copper once, every day, common property went out containing Zn98.1%, In0.19%, Cu0.02%, Cd1.28%, the crude zinc alloy 269t of Sn0.22%, containing Cu84.2%, Fe2.9%, In0.029%, Ag2.8%, the blister copper 4.1t of Sn4.3% and containing Fe43.2%, Zn12.7%, In0.031%, Cu0.065%, Cd0.018%, Ag0.0013%, the slag 276t of Sn0.15%,
(3) fuming blowing: it is that the Chinese mugwort Sa stove of 6500mm carries out fuming blowing that slag adds interior diameter by every stove 46t, 1350 ℃ of blowing temperature, the blowing cycle is 4 hours, 6 stoves altogether blow every day, common property goes out containing the flue dust 54t of Zn50%, Fe3.6%, In0.092%, Cu0.01%, Cd0.04%, Ag0.004%, Sn0.42% with containing Fe41.8%, Zn2.9%, In0.012%, Cu0.07%, Cd0.01%, Ag0.0012%, Sn0.05% fuming furnace blowing slag 270t, and flue dust returns to step (2) retailoring; Every day, the fuming furnace blowing slag 270t of output was for sale;
(4) copper silver recovery: every day output argentiferous blister copper 4.1t, after adopting traditional blister copper electrolysis process to process, obtain containing the electrolysis cathode copper products 3.2t of Cu99.95% with containing Ag12.7%, Cu27.9% silver anode slime 0.9t, cathode copper product is for sale, silver anode slime, after wet method is extracted, is produced the thick silver products 0.121t containing Ag92.6%;
(5) level Four distillation: every day output 269 tons of crude zinc alloys, with 1.4t/(h* platform) speed enter respectively 8 plumbous towers that formed by 60 1372mm * 762mm carbon silicon tower trays and carry out one-level distillation, 920 ℃ of one-level distillation temperatures, output Zn-Cd alloy 1.20t/(h* platform) liquid 0.20t/(h* platform and at the bottom of zinc indium tin); Zn-Cd alloy enters with 3.6t/h the cadmium tower being comprised of 60 1372mm * 762mm carbon silicon tower trays and carries out secondary distillation, 850 ℃ of secondary distillation temperature, output pyrogenic process distilled zinc 3.0t/h and high cadmium zinc alloy 0.6t/h, pyrogenic process distilled zinc is through the cooling zinc ingot metal product obtaining containing Zn99.998%, Fe0.0003%, In0.0002%, Cu0.0003%, Cd0.0002%, Ag0.0001%, Sn0.0002% of casting; The speed of high cadmium zinc alloy 3.6t/h enters the cryogenic columns being comprised of 60 1372mm * 762mm carbon silicon tower trays and carries out three-stage distillation, 740 ℃ of three-stage distillation temperature, obtain thick cadmium product 0.3t/h and low cazin 3.3t/h containing Cd93.2%, low cazin returns to cadmium tower and carries out secondary distillation; At the bottom of zinc indium tin, liquid enters with the speed of 2.2t/h the high temperature tower being comprised of 60 1372mm * 762mm carbon silicon tower trays and carries out level Four distillation, 1100 ℃ of level Four distillation temperatures, output is containing high indium red brass 0.2t/h and the high temperature crude zinc 2.0t/h of In13.2%, Sn15.3%, Zn70.1%, and high temperature crude zinc returns to plumbous tower and carries out one-level distillation;
(6) indium tin reclaims: containing the high indium red brass of In13.2%, Sn15.3%, adopt " Mechanical Crushing, dilute sulphuric acid dissolving, P204 organic substance extraction, hydrochloric acid back extraction, the heavy tin of soda ash, zinc ingot metal displacement, thick indium electrolysis " technique, every batch processed 1.0t, output also reclaims the tin raw material 0.288t containing Sn52.7% containing the smart indium product 0.128t of In99.996%.
Claims (1)
1. the treatment process of many metallic zinc of high ferro concentrate, it is characterized in that, zinc ore concentrate by containing Fe14～20%, In0.03～0.10%, Cu0.2～0.6%, Cd0.2～0.6%, Ag0.01～0.02%, Sn0.1～0.2%, Zn40～50%, is undertaken by following sequential steps:
(1) fluidized bed roasting: described zinc ore concentrate adds boiling roaster desulfurization, maturing temperature 880-940 ℃, output sulfur dioxide flue gas and calcining, sulfur dioxide flue gas extracting sulfuric acid;
(2) retailoring: calcining is allocated the electric furnace entering with lead-splash condenser after 20～25% reductive agent into and carried out retailoring, 1300～1400 ℃ of smelting temperatures, output crude zinc alloy, argentiferous blister copper and slag;
(3) fuming blowing: slag enters fuming furnace or the blowing of Chinese mugwort Sa stove, 1250～1350 ℃ of blowing temperature, duration of blast is 4 hours, output flue dust and fuming furnace blowing slag or Chinese mugwort Sa stove blowing slag, flue dust returns to step (2) retailoring; Fuming furnace blowing slag or the blowing of Chinese mugwort Sa stove, blowing slag is for sale;
(4) copper silver recovery: argentiferous blister copper obtains electrolysis cathode copper products and silver anode slime after adopting traditional blister copper electrolysis process to process, and cathode copper product is for sale, and silver anode slime is produced thick silver products;
(5) level Four distillation: crude zinc alloy enters plumbous tower and carries out one-level distillation, 860～920 ℃ of one-level distillation temperatures, liquid at the bottom of output Zn-Cd alloy and zinc indium tin; Zn-Cd alloy enters cadmium tower and carries out secondary distillation, 810～850 ℃ of secondary distillation temperature, and output pyrogenic process distilled zinc and high cadmium zinc alloy, pyrogenic process distilled zinc is through the cooling zinc ingot metal product that obtains of casting; High cadmium zinc alloy enters cryogenic columns and carries out three-stage distillation, and 700～740 ℃ of three-stage distillation temperature obtain thick cadmium product and low cazin, and low cazin returns to cadmium tower and carries out secondary distillation; At the bottom of zinc indium tin, liquid enters high temperature tower and carries out level Four distillation, 1020～1100 ℃ of level Four distillation temperatures, and the high indium red brass of output and high temperature crude zinc, high temperature crude zinc returns to plumbous tower and carries out one-level distillation;
(6) indium tin reclaims: high indium red brass adopts Mechanical Crushing, dilute sulphuric acid dissolving, P204 organic substance extraction, hydrochloric acid back extraction, the heavy tin of soda ash, zinc ingot metal displacement, thick indium electrolysis process to extract indium, tin, produces smart indium product and reclaims tin raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682040.4A CN103695635B (en) | 2013-12-13 | 2013-12-13 | Method for treating high-iron and multi-metal zinc concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682040.4A CN103695635B (en) | 2013-12-13 | 2013-12-13 | Method for treating high-iron and multi-metal zinc concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103695635A true CN103695635A (en) | 2014-04-02 |
| CN103695635B CN103695635B (en) | 2015-04-15 |
Family
ID=50357295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310682040.4A Active CN103695635B (en) | 2013-12-13 | 2013-12-13 | Method for treating high-iron and multi-metal zinc concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103695635B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725884A (en) * | 2013-12-13 | 2014-04-16 | 来宾华锡冶炼有限公司 | Treatment method of high-indium and high-copper zinc ore concentrate |
| CN104498725A (en) * | 2015-01-12 | 2015-04-08 | 昆明有色冶金设计研究院股份公司 | Process for recovering valuable metals through smelting by blowing oxygen-enriched air into traditional fuming furnace |
| CN104818388A (en) * | 2015-05-06 | 2015-08-05 | 昆明鼎邦科技有限公司 | Method of vacuum-reducing separating indium from tin from an In/Sn oxide |
| CN108224433A (en) * | 2018-03-27 | 2018-06-29 | 甘肃华壹环保技术服务有限公司 | The innoxious use processing system and processing method of a kind of electronic waste |
| CN110616312A (en) * | 2018-06-20 | 2019-12-27 | 云南远大金业有限公司 | Pyrometallurgical enrichment process of low-grade polymetallic oxygen complex ore |
| CN113684364A (en) * | 2021-08-27 | 2021-11-23 | 新疆紫金有色金属有限公司 | Fluidized bed furnace roasting treatment method for fine-grained high-silicon low-iron zinc concentrate |
| CN115505743A (en) * | 2022-09-06 | 2022-12-23 | 湖北大江环保科技股份有限公司 | Process for producing crude indium from indium in soot |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613796A (en) * | 2008-06-24 | 2009-12-30 | 黄石市英柯有色金属有限公司 | A kind of separation method of metal elements of zinc-nickel-cadmium-containing materials |
| CN101886272A (en) * | 2010-01-08 | 2010-11-17 | 中南大学 | Method for extracting indium and preparing iron oxide by slag-free zinc hydrometallurgy of zinc concentrate |
| CN102134655A (en) * | 2010-12-29 | 2011-07-27 | 昆明理工大学 | Method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation |
| CN102312083A (en) * | 2011-09-23 | 2012-01-11 | 来宾华锡冶炼有限公司 | Method for extracting zinc indium and recovering iron from high-iron high indium zinc concentrate |
-
2013
- 2013-12-13 CN CN201310682040.4A patent/CN103695635B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613796A (en) * | 2008-06-24 | 2009-12-30 | 黄石市英柯有色金属有限公司 | A kind of separation method of metal elements of zinc-nickel-cadmium-containing materials |
| CN101886272A (en) * | 2010-01-08 | 2010-11-17 | 中南大学 | Method for extracting indium and preparing iron oxide by slag-free zinc hydrometallurgy of zinc concentrate |
| CN102134655A (en) * | 2010-12-29 | 2011-07-27 | 昆明理工大学 | Method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation |
| CN102312083A (en) * | 2011-09-23 | 2012-01-11 | 来宾华锡冶炼有限公司 | Method for extracting zinc indium and recovering iron from high-iron high indium zinc concentrate |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725884A (en) * | 2013-12-13 | 2014-04-16 | 来宾华锡冶炼有限公司 | Treatment method of high-indium and high-copper zinc ore concentrate |
| CN103725884B (en) * | 2013-12-13 | 2015-06-24 | 来宾华锡冶炼有限公司 | Treatment method of high-indium and high-copper zinc ore concentrate |
| CN104498725A (en) * | 2015-01-12 | 2015-04-08 | 昆明有色冶金设计研究院股份公司 | Process for recovering valuable metals through smelting by blowing oxygen-enriched air into traditional fuming furnace |
| CN104818388A (en) * | 2015-05-06 | 2015-08-05 | 昆明鼎邦科技有限公司 | Method of vacuum-reducing separating indium from tin from an In/Sn oxide |
| CN104818388B (en) * | 2015-05-06 | 2017-03-01 | 昆明鼎邦科技股份有限公司 | A kind of indium tin oxide vacuum reduction separating indium and the method for stannum |
| CN108224433A (en) * | 2018-03-27 | 2018-06-29 | 甘肃华壹环保技术服务有限公司 | The innoxious use processing system and processing method of a kind of electronic waste |
| CN110616312A (en) * | 2018-06-20 | 2019-12-27 | 云南远大金业有限公司 | Pyrometallurgical enrichment process of low-grade polymetallic oxygen complex ore |
| CN113684364A (en) * | 2021-08-27 | 2021-11-23 | 新疆紫金有色金属有限公司 | Fluidized bed furnace roasting treatment method for fine-grained high-silicon low-iron zinc concentrate |
| CN115505743A (en) * | 2022-09-06 | 2022-12-23 | 湖北大江环保科技股份有限公司 | Process for producing crude indium from indium in soot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103695635B (en) | 2015-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103695635B (en) | Method for treating high-iron and multi-metal zinc concentrate | |
| CN102643996B (en) | Method for producing lead bullion by means of copper dross side-blown smelting | |
| US20140008238A1 (en) | Process for Recovering Valuable Metals from Precious metal Smelting Slag | |
| CN101078052B (en) | Method for synthetically reclaiming iron and non-ferrous metal from solid waste of iron and steel plant | |
| CN103695663B (en) | Smelting method of high-iron multi-metal zinc concentrate | |
| CN102051478B (en) | Wet process for treating lead copper matte | |
| CN108118157A (en) | Wiring board burns the recovery method of cigarette ash pretreatment and bromine | |
| CN101538650A (en) | Method for wet-separation of manganese from lead and silver in electrolytic-zinc anode slime | |
| CN107338454B (en) | A method of recycling copper and arsenic from white metal | |
| CN107217145A (en) | A kind of method that copper anode mud vacuum reduction takes off lead antimony bismuth selen-tellurjum arsenic | |
| CN105112668A (en) | Method for separating and enriching valuable metals from copper anode mud | |
| CN102586604A (en) | Technology for wet-processing anode mud containing arsenic and lead | |
| CN112063854B (en) | Method for comprehensively recovering bismuth, silver and copper metals by taking precious lead as raw material | |
| CN105925793A (en) | Method and system for treating zinc leaching residues | |
| CN105087952A (en) | Method for removing sulfur and gathering copper, silver and antimony from sulfur-containing multi-metal smelting slag through vacuum distillation | |
| CN111893310A (en) | Harmless recycling treatment method for solid hazardous waste | |
| CN113736994A (en) | Roasting treatment method of zinc concentrate with high lead, copper and iron contents | |
| CN101525696B (en) | Method for leaching indium from leaching residue containing indium | |
| CN104060089B (en) | A kind of method and smelting furnace processing high-iron multi-metal zinc concentrate | |
| CN107099669A (en) | A kind of method containing high-efficiency cleaning arsenic removal in copper ashes | |
| CN103205576A (en) | Method for treating lead anode slime | |
| CN103131864B (en) | Method for pre-treating complex indium-containing smoke dust by microwave roasting | |
| CN103740932A (en) | Method for processing zinc concentrate with high content of indium and iron | |
| CN112080648B (en) | Method for treating indium-containing high-iron zinc sulfide concentrate | |
| CN104711431B (en) | A kind of method that copper dross slag produces copper sulphate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |