CN108866342A - A kind of device and method handling spent noble metals bearing catalysts - Google Patents
A kind of device and method handling spent noble metals bearing catalysts Download PDFInfo
- Publication number
- CN108866342A CN108866342A CN201810998585.9A CN201810998585A CN108866342A CN 108866342 A CN108866342 A CN 108866342A CN 201810998585 A CN201810998585 A CN 201810998585A CN 108866342 A CN108866342 A CN 108866342A
- Authority
- CN
- China
- Prior art keywords
- electrode
- electric furnace
- copper
- furnace
- noble metals
- 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
- 239000003054 catalyst Substances 0.000 title claims abstract description 50
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 85
- 229910052802 copper Inorganic materials 0.000 claims abstract description 77
- 239000010949 copper Substances 0.000 claims abstract description 77
- 238000003780 insertion Methods 0.000 claims abstract description 8
- 230000037431 insertion Effects 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 4
- 239000002893 slag Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 34
- 239000007789 gas Substances 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000011449 brick Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 8
- 239000006028 limestone Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000000571 coke Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 241001417490 Sillaginidae Species 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003949 liquefied natural gas Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims 1
- 235000011941 Tilia x europaea Nutrition 0.000 claims 1
- 210000000038 chest Anatomy 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000004571 lime Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000008929 regeneration Effects 0.000 abstract description 4
- 238000011069 regeneration method Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/02—Obtaining noble metals by dry processes
- C22B11/021—Recovery of noble metals from waste materials
- C22B11/026—Recovery of noble metals from waste materials from spent catalysts
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/04—Heavy metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/009—General processes for recovering metals or metallic compounds from spent catalysts
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of device and method for handling spent noble metals bearing catalysts, belong to danger wastes disposition and resource regeneration field, to solve the problems, such as to easily cause secondary pollution existing for existing apparatus.A kind of device handling spent noble metals bearing catalysts, including sequentially connected electric furnace, expansion chamber, bag filter, smoke exhaust fan and exhaust tube, the top of the electric furnace is equipped with electrode, the furnace shell of the electric furnace is equipped with electrode lifting device, the inside of the lower end insertion electric furnace of the electrode, the top of the electrode is connected with electrode lifting device；The lower sidewalls of the electric furnace are equipped with fire door, and the bottom of the electric furnace, which is equipped with, puts copper mouth；The top side wall of the electric furnace is equipped with exhanst gas outlet, and exhanst gas outlet is connected with expansion chamber.The present invention has the characteristics that the type of furnace is adjustable, the noble metal rate of recovery is high, the blow-on starting the arc is easy, equipment investment is few.
Description
Technical field
The invention belongs to danger wastes disposition and resource regeneration fields, and in particular to a kind of to handle containing the useless catalysis of noble metal
The device and method of agent.
Background technique
90% or more petrochemical reactions is realized by catalyst, and used catalyst is will to be used as catalyst component
Various platinums group metal be loaded in the platinum group catalyst constituted on the carrier of aluminium oxide etc..After catalyst regeneration it is original activity by
Damage just becomes dead catalyst when repeatedly activity is lower than acceptable degree after regeneration.With the rapid development of petrochemical industry,
The increment of petroleum chemical industry spent catalyst also rapidly increases.Often contain some toxic components in petrochemical industry dead catalyst,
Mainly heavy metal and volatile organic matter have very big environmental risk, and carrying out harmless treatment to it is particularly important.
In addition, noble metal and other valuable metals in petroleum chemical industry spent catalyst containing high level, some are even much higher than certain
The content of respective components in lean ore, metal content is high, can recycle as secondary resource.To the useless catalysis of petrochemical industry
Agent, which carries out comprehensive reutilization, both can be improved resource utilization, more can be realized to avoid dead catalyst bring environmental problem
Sustainable development.
Dead catalyst hydrometallurgic recovery is domestic and international most study, most widely used method at present.This method be with acid,
The main component of alkali or other solvents dissolution industrial waste catalyst, after filtrate edulcoration purification, by separation, can must be insoluble in water
Sulfide or metal hydroxides are further processed into final products after dry as needed.With wet-treating dead catalyst,
Carrier often exists in the form of insoluble residue, and such as without processing method appropriate, these a large amount of solid waste will cause secondary danger
Evil, if carrier is dissolved with metal, the separation of metal and carrier can generate a large amount of waste liquids and easily cause secondary pollution.In addition, wet
Still contain a certain amount of platinum metal (generally 30-50g/t) in residue after method recycling noble metal, process flow is long, operation
It is many and diverse, it is at high cost.
Summary of the invention
The object of the present invention is to provide a kind of devices for handling spent noble metals bearing catalysts, to solve existing for existing apparatus
The problem of easily causing secondary pollution.
It is a further object to provide a kind of methods for handling spent noble metals bearing catalysts, to solve existing method
Existing process flow is long, trivial operations, problem at high cost.
The technical scheme is that：A kind of device handling spent noble metals bearing catalysts, including sequentially connected electric furnace,
Expansion chamber, bag filter, smoke exhaust fan and exhaust tube, the top of the electric furnace are equipped with electrode, set on the furnace shell of the electric furnace
There is electrode lifting device, the inside of the lower end insertion electric furnace of the electrode, the top of the electrode is connected with electrode lifting device；
The lower sidewalls of the electric furnace are equipped with fire door, and the bottom of the electric furnace, which is equipped with, puts copper mouth；The top side wall of the electric furnace is equipped with cigarette
Gas outlet, exhanst gas outlet are connected with expansion chamber.
As a further improvement of the present invention, electric furnace uses graphite electrode, and number of electrodes is 1 or 3, rise fall of electrodes dress
It sets and is fixed on electric furnace shell.
As a further improvement of the present invention, electric stove hearth width is 0.8-2m, and burner hearth overall height is 1-2.2m.Exhanst gas outlet
Movable sealing ring is set, is connected with subsequent flue, anti-leak-stopping cigarette.
With the method for above-mentioned device processing spent noble metals bearing catalysts, include the following steps：
A, broken copper 200-500kg is added in electric furnace, reducing electrode contacts it with broken copper, and metallic copper melts under electrode effect
Electrode is gradually promoted with the raising in copper liquid face at copper liquid,
B, it feeds：Dead catalyst and pulverized limestone ingredient mix, and mixed material are added in electric furnace from fire door, with bath surface
It increases, gradually promotes electrode, guarantee electrode insertion melt liquid level or less 100-200mm；
Stop charging when bath surface rises to away from fire door 200mm, promotes electrode, make electrode for bath surface, pass through oxygen blast
Pipe is blown into gas, is stirred to melt, stirs melt 15-20 minutes, is sufficiently mixed slag phase mutually with copper；After the completion of stirring,
Electrode is reduced, makes electrode again insertable into 100-200mm below bath surface, keeps the temperature 20-40 minutes；
C, blowing：Fascinate furnace body after the completion of heat preservation, releases clinker from fire door, and the slag of releasing carries out water quenching；It will after slag discharges
Furnace body shakes just, and copper liquid continues to stay in bottom, then continues to feed from fire door, repeats aforesaid operations；After last time discharges slag, shake
Positive furnace body, with oxygen, by putting below furnace body, copper mouth is boiled, puts the copper liquid for having trapped noble metal to mold progress from copper mouth is put
Casting obtains the copper bullion rich in noble metal.It can be directly placed into mold by chute, tundish can also be put into, by manually pouring into mould
Tool is cast.
D, it smelts the flue gas generated and first passes through expansion chamber removing large dust particle, then remove small by bag filter
Grain dust, last flue gas qualified discharge.
As a further improvement of the present invention, the mass ratio of dead catalyst and pulverized limestone is 1:1.0-1.5.
It as a further improvement of the present invention, is nitrogen or argon gas or liquefaction day by the gas that oxygen lance is blown into from fire door
Right gas is stirred melt, increases the contact area of copper phase and slag phase, absorbs noble metal preferably by copper；Furnace inner lining is
Using one or two kinds of mixed in carbon brick, magnesite-chrome brick.
As a further improvement of the present invention, after the step B electrode is for bath surface, calcirm-fluoride is added from fire door,
Calcirm-fluoride adding proportion is 1%-3%.
As a further improvement of the present invention, charging and slagging carry out 10-12 times altogether.
As a further improvement of the present invention, clinker is released in the step C, and starting the arc mode uses coke when next blow-on
Electrode is connected with furnace inner lining and carries out the starting the arc.
As a further improvement of the present invention, clinker is released in the step C, and starting the arc mode is using pre-buried when next blow-on
Electrode is connect the conductive progress starting the arc by metal bar with metal bar.
The principle of apparatus of the present invention is：First broken copper is melted, then will be passed through after dead catalyst and pulverized limestone ingredient artificial
Mode is added in electric furnace from fire door, and material melts under electrode effect, since the density of copper is sunken to greatly bottom, its in dead catalyst
Remaining part point carries out slag making with auxiliary material, and slag floats on above melt, in fusion process, boils and is stirred continuously by melt, useless to urge
Noble metal in agent is absorbed by copper liquid, fed, stirred repeatedly, being kept the temperature and the process of falling slag after, the noble metal in dead catalyst
It is constantly enriched in blister copper, put copper mouth of the blister copper below furnace body releases and cast to obtain the blister copper containing noble metal.
It smelts the flue gas generated and first passes through expansion chamber removing large dust particle, then remove little particle by bag filter
Dust, last flue gas qualified discharge.
The method of the present invention is that the dead catalyst and pulverized limestone containing noble metal melt under electrode effect, is your gold with metallic copper
The trapping agent of category, makes concentration of precious metal in metallic copper, and the output in the form of slag such as aluminium oxide, silica, has in catalyst
Effect solves dead catalyst stockpiling bring environmental problem, and has efficiently recycled noble metal platinum, palladium in dead catalyst, has
Good environmental benefit and economic benefit.
The present invention has the characteristics that the type of furnace is adjustable, the noble metal rate of recovery is high, the blow-on starting the arc is easy, equipment investment is few.
The present invention has the following advantages that：
1, can operate continuously also can with intermittent operation, intermittent operation blowing out again blow-on when electrode can be connected to furnace wall with coke
Carry out conduction and carry out the starting the arc, can also be previously inserted iron staff or copper rod in the melt after blowing out, decline electrode make it with iron staff or
Copper rod connects the starting the arc.
2, electric furnace refractory material is mixed using conductive carbon brick, magnesite-chrome brick one of which or two kinds of intervals.Electric stove hearth is big
Small to be adjusted according to treating capacity, electric furnace can minimize processing spent noble metals bearing catalysts.
3, the trapping agent using copper as noble metal, put copper mouth of the blister copper below furnace body release and cast to obtain containing your gold
The blister copper of category.Furnace body when clinker and blister copper are all released from top fire door is avoided to fascinate the office that excessive, blister copper cannot pour out completely
Face.
4, process flow is simple, substantially reduces labour personnel amount.The noble metal rate of recovery is high, and platinum content is near in clinker
5g/t is hereinafter, the near 5g/t or less of palladium content.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of device for handling spent noble metals bearing catalysts；
Fig. 2 is the structural schematic diagram of electric furnace in a kind of device of processing spent noble metals bearing catalysts；
Fig. 3 is a kind of schematic diagram of starting the arc mode；
Fig. 4 is the schematic diagram of another starting the arc mode.
In figure：1- electric furnace, 2- expansion chamber, 3- bag-type dust, 4- blower, 5- exhaust tube, 11- electrode lifting device, 12- furnace
Shell, 13- electrode, 14- exhanst gas outlet, 15- fire door, 16- put copper mouth, 17- metal bar；18- furnace inner lining；19- coke；20- copper
Layer；21- slag blanket.
Specific embodiment
Substantive content of the invention can be further illustrated with embodiment below, but the contents of the present invention are not limited to this.
As shown, it is a kind of handle spent noble metals bearing catalysts device, including sequentially connected electric furnace 1, expansion chamber 2,
Bag filter 3, smoke exhaust fan 4 and exhaust tube 5, the top of electric furnace 1 are equipped with electrode 13, and the furnace shell 12 of electric furnace 1 is equipped with electrode
Lifting device 11, the inside of the lower end insertion electric furnace 1 of electrode 13, the top of electrode 13 is connected with electrode lifting device 11；Electric furnace 1
Lower sidewalls be equipped with fire door 15, the bottom of electric furnace 1 is equipped with and puts copper mouth 16；The top side wall of electric furnace 1 is equipped with exhanst gas outlet 14, cigarette
Gas outlet 14 is connected with expansion chamber 2.
Electric furnace is heated using graphite electrode, and 13 quantity of electrode is 1 or 3, and electrode lifting device 11 is fixed on outside electric furnace
On shell, when electric furnace rotation, electrode follows furnace body to rotate.Movable sealing ring is arranged in exhanst gas outlet 14.Furnace inner lining is built
On the inside of furnace shell, furnace body outer layer is the furnace shell that steel plate is done.
Fig. 3 is a kind of schematic diagram of starting the arc mode in the method for handle spent noble metals bearing catalysts；Fig. 4 is another starting the arc
The schematic diagram of mode.Electric furnace in figure（1）Inner cavity lower layer is layers of copper 20, and upper layer is slag blanket 21.
Embodiment 1
Broken copper 200kg is added in electric furnace, reducing electrode contacts it with broken copper, and metallic copper is fused into copper liquid under electrode effect
Layer 20 gradually promotes electrode with the raising in copper liquid face, and heating process electrode uses Single lead, and furnace inner lining is magnesite-chrome brick,
Electric stove hearth width is 0.8m, burner hearth overall height 1m.
By dead catalyst：Pulverized limestone mass ratio is 1:1.0 ingredients mix the material prepared.By mixed material by people
Electric furnace is added from fire door in work mode, with the raising of bath surface, gradually promotes electrode, guarantees electrode insertion melt liquid level or less
100-200mm。
Stop charging when bath surface rises to away from fire door 200mm, promotes electrode, make electrode for bath surface, Xiang Rong
1% calcirm-fluoride is added in pond to reduce the fusing point of slag.Stirred melt 15 minutes with nitrogen or argon gas by oxygen lance, make slag phase and
Copper is mutually sufficiently mixed, and makes noble metal is as much as possible to be enriched in copper liquid.After the completion of stirring, electrode is reduced, inserts electrode again
Enter bath surface or less 100-200mm, keeps the temperature 20 minutes.
When slagging tap, electric furnace fascinates under driving device effect, and clinker is from slag notch（Fire door）It pours out, the slag of releasing carries out water
It quenches, Water Quenching Slag is then subjected to stockpiling or sells outside.
Furnace body is shaken just after slag discharges, copper liquid continues to stay in bottom, then continues to feed from fire door, repeats above-mentioned behaviour
Make, altogether charging and slagging ten times, releases clinker when wherein needing blowing out, and by more than electrode lifting to remaining liquid level, in residue
A copper rod is inserted at center in melt, and electrode connect the conduction progress starting the arc by when next blow-on with copper rod.
After last time discharges slag, shake positive furnace body, with oxygen by below furnace body to put copper mouth boiled, make to have trapped noble metal
Copper liquid cast to obtain the copper bullion rich in noble metal from putting copper mouth and put to mold.
Embodiment 2
Broken copper 400kg is added in electric furnace, reducing electrode contacts it with broken copper, and metallic copper is fused into copper under electrode effect
Liquid gradually promotes electrode with the raising in copper liquid face, and heating process electrode uses Single lead, furnace inner lining be magnesite-chrome brick with
Carbon brick is alternatively arranged, and electric stove hearth width is 1.8m, burner hearth overall height 2m.
By dead catalyst：Pulverized limestone mass ratio is 1:1.4 ingredients mix the material prepared.By mixed material by people
Electric furnace is added from fire door in work mode, with the raising of bath surface, gradually promotes electrode, guarantees electrode insertion melt liquid level or less
100-200mm。
Stop charging when bath surface rises to away from fire door 200mm, promotes electrode, make electrode for bath surface, use nitrogen
Gas is stirred melt 20 minutes by oxygen lance, is sufficiently mixed slag phase mutually with copper, is made noble metal is as much as possible to be enriched in copper liquid
In.After the completion of stirring, electrode is reduced, makes electrode again insertable into 100-200mm below bath surface, keeps the temperature 30 minutes.
When slagging tap, electric furnace fascinates under driving device effect, and clinker is from slag notch（Fire door）It pours out, the slag of releasing carries out water
It quenches, Water Quenching Slag is then subjected to stockpiling or sells outside.
Furnace body is shaken just after slag discharges, copper liquid continues to stay in bottom, then continues to feed from fire door, repeats above-mentioned behaviour
Make, altogether charging and slagging 12 times, releases clinker when wherein needing blowing out, and by more than electrode lifting to remaining liquid level, in residue
An iron staff is inserted at center in melt, and electrode connect the conduction progress starting the arc by when next blow-on with iron staff.
After last time discharges slag, shake positive furnace body, with oxygen by below furnace body to put copper mouth boiled, make to have trapped noble metal
Copper liquid be discarded to tundish from copper mouth is put, cast to obtain the blister copper rich in noble metal by manually pouring into mold.
Embodiment 3
Broken copper 500kg is added in electric furnace, reducing electrode contacts it with broken copper, and metallic copper is fused into copper under electrode effect
Liquid gradually promotes electrode with the raising in copper liquid face, and heating process electrode uses Single lead, and furnace inner lining is carbon brick, electric furnace
Furnace width is 2m, burner hearth overall height 2.2m.
By dead catalyst：Pulverized limestone mass ratio is 1:1.5 ingredients mix the material prepared.By mixed material by people
Electric furnace is added from fire door in work mode, with the raising of bath surface, gradually promotes electrode, guarantees electrode insertion melt liquid level or less
100-200mm。
Stop charging when bath surface rises to away from fire door 200mm, promotes electrode, make electrode for bath surface, Xiang Rong
1.5% calcirm-fluoride is added in pond to reduce the fusing point of slag.It is stirred melt 20 minutes with liquefied natural gas by oxygen lance, makes slag phase
It is mutually sufficiently mixed with copper, makes noble metal is as much as possible to be enriched in copper liquid.After the completion of stirring, electrode is reduced, makes electrode again
It is inserted into bath surface or less 100-200mm, keeps the temperature 40 minutes.
When slagging tap, electric furnace fascinates under driving device effect, and clinker is from slag notch（Fire door）It pours out, the slag of releasing carries out water quenching,
Then Water Quenching Slag is subjected to stockpiling or sold outside.
Furnace body is shaken just after slag discharges, copper liquid continues to stay in bottom, then continues to feed from fire door, repeats above-mentioned behaviour
Make, altogether charging and slagging 12 times, clinker is released when wherein needing blowing out, and by more than electrode lifting to remaining liquid level, next time is opened
Electrode is connected into conduction with furnace wall with coke when furnace and carries out the starting the arc.
After last time discharges slag, shake positive furnace body, with oxygen by below furnace body to put copper mouth boiled, make to have trapped noble metal
Copper liquid be discarded to tundish from copper mouth is put, cast to obtain the blister copper rich in noble metal by manually pouring into mold.
Embodiment 4：Difference from Example 2 is to stop charging when bath surface rises to away from fire door 200mm, be promoted
Electrode makes electrode for bath surface, 2% calcirm-fluoride is added into molten bath at this time to reduce the fusing point of slag.
Claims (10)
1. a kind of device for handling spent noble metals bearing catalysts, it is characterised in that：Including sequentially connected electric furnace（1）, expansion chamber
（2）, bag filter（3）, smoke exhaust fan（4）And exhaust tube（5）, the electric furnace（1）Top be equipped with electrode（13）, the electricity
Furnace（1）Furnace shell（12）It is equipped with electrode lifting device（11）, the electrode（13）Lower end be inserted into electric furnace（1）Inside, institute
State electrode（13）Top and electrode lifting device（11）It is connected；The electric furnace（1）Lower sidewalls be equipped with fire door（15）, described
Electric furnace（1）Bottom be equipped with put copper mouth（16）；The electric furnace（1）Top side wall be equipped with exhanst gas outlet（14）, exhanst gas outlet
（14）With expansion chamber（2）It is connected.
2. a kind of device for handling spent noble metals bearing catalysts according to claim 1, it is characterised in that：Electric furnace uses stone
Electrode ink, electrode（13）Quantity is 1 or 3, electrode lifting device（11）It is fixed on electric furnace shell.
3. a kind of device for handling spent noble metals bearing catalysts according to claim 1 or 2, it is characterised in that：Electric furnace
Thorax width is 0.8-2m, and burner hearth overall height is 1-2.2m.
4. with the method for device described in claim 1 processing spent noble metals bearing catalysts, it is characterised in that include the following steps：
A, electric furnace is added in broken copper 200-500kg（1）In, reduce electrode（13）Contact it with broken copper, the gold under electrode effect
Belong to copper and be fused into copper liquid, with the raising in copper liquid face, gradually promotes electrode,
B, it feeds：Dead catalyst and pulverized limestone ingredient mix, by mixed material from fire door（15）It is added in electric furnace, with molten bath liquid
The raising in face gradually promotes electrode, guarantees electrode insertion melt liquid level or less 100-200mm；
When bath surface rises to away from fire door（15）Stop charging when 200mm, promotes electrode, make electrode for bath surface, pass through
Oxygen lance is blown into gas, is stirred to melt, stirs melt 15-20 minutes, is sufficiently mixed slag phase mutually with copper；Stirring is completed
Afterwards, electrode is reduced, makes electrode again insertable into 100-200mm below bath surface, keeps the temperature 20-40 minutes；
C, blowing：Fascinate furnace body after the completion of heat preservation, makes clinker from fire door（15）It releases, the slag of releasing carries out water quenching；It is discharged to slag
Furnace body is shaken just afterwards, copper liquid continues to stay in bottom, then from fire door（15）Continue to feed, repeats aforesaid operations；
After last time discharges slag, positive furnace body is shaken, copper mouth is boiled by putting below furnace body with oxygen, makes the copper for having trapped noble metal
Liquid is cast to obtain the copper bullion rich in noble metal from putting copper mouth and put to mold；
D, it smelts the flue gas generated and first passes through expansion chamber removing large dust particle, then remove little particle powder by bag filter
Dirt, last flue gas qualified discharge.
5. the method for processing spent noble metals bearing catalysts according to claim 4, it is characterised in that：Dead catalyst and lime
The mass ratio of powder is 1:1.0-1.5.
6. the method for processing spent noble metals bearing catalysts according to claim 5, it is characterised in that：By oxygen lance from furnace
Mouthful（15）The gas being blown into is that nitrogen or argon gas or liquefied natural gas are stirred melt；Furnace inner lining（18）Using carbon brick,
It is one or two kinds of mixed in magnesite-chrome brick.
7. the method for processing spent noble metals bearing catalysts according to claim 6, it is characterised in that：The step B electrode
After bath surface, from fire door（15）Calcirm-fluoride is added, calcirm-fluoride adding proportion is 1%-3%.
8. the method for processing spent noble metals bearing catalysts according to claim 7, it is characterised in that：Charging and slagging altogether into
Row 10-12 times.
9. the method for processing spent noble metals bearing catalysts according to claim 8, it is characterised in that：Furnace in the step C
Slag is released, and starting the arc mode uses coke when next blow-on（19）By electrode（13）With furnace inner lining（18）It is connected and carries out the starting the arc.
10. the method for processing spent noble metals bearing catalysts according to claim 8, it is characterised in that：Furnace in the step C
Slag is released, and starting the arc mode uses built-in metal stick when next blow-on（17）, electrode is connect to the conductive progress starting the arc with metal bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998585.9A CN108866342B (en) | 2018-08-29 | 2018-08-29 | Device and method for treating waste catalyst containing noble metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810998585.9A CN108866342B (en) | 2018-08-29 | 2018-08-29 | Device and method for treating waste catalyst containing noble metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108866342A true CN108866342A (en) | 2018-11-23 |
| CN108866342B CN108866342B (en) | 2023-11-17 |
Family
ID=64322130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810998585.9A Active CN108866342B (en) | 2018-08-29 | 2018-08-29 | Device and method for treating waste catalyst containing noble metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108866342B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5030274A (en) * | 1987-11-16 | 1991-07-09 | Ward Vincent C | Method for recovering metallics and non-metallics from spent catalysts |
| JP2005113253A (en) * | 2003-10-10 | 2005-04-28 | Dowa Mining Co Ltd | Method for recovering platinum group metal |
| CN1675385A (en) * | 2002-08-05 | 2005-09-28 | 同和矿业株式会社 | Method of recovering platinum group element and apparatus therefor |
| CN103334010A (en) * | 2013-07-15 | 2013-10-02 | 贵研资源（易门）有限公司 | Method for fusing enriched precious metal from spent automotive catalyst |
| CN103383193A (en) * | 2012-05-04 | 2013-11-06 | 无锡市东优环保科技有限公司 | Integrated dust removing method for high-dust flue gas of electric furnace |
| CN104561570A (en) * | 2013-09-25 | 2015-04-29 | 安徽工业大学 | Using method of electroslag remelting refining slag by efficiently using returned slag |
| CN107058747A (en) * | 2017-05-03 | 2017-08-18 | 中南大学 | The method of oxygen-enriched top blowing copper weld pool collocation processing waste printed circuit board |
| CN108441647A (en) * | 2018-03-07 | 2018-08-24 | 东北大学 | A kind of method that pyrogenic process recycles noble metal platinum in automobile dead catalyst |
| CN208733194U (en) * | 2018-08-29 | 2019-04-12 | 兰州有色冶金设计研究院有限公司 | A kind of device handling spent noble metals bearing catalysts |
-
2018
- 2018-08-29 CN CN201810998585.9A patent/CN108866342B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5030274A (en) * | 1987-11-16 | 1991-07-09 | Ward Vincent C | Method for recovering metallics and non-metallics from spent catalysts |
| CN1675385A (en) * | 2002-08-05 | 2005-09-28 | 同和矿业株式会社 | Method of recovering platinum group element and apparatus therefor |
| JP2005113253A (en) * | 2003-10-10 | 2005-04-28 | Dowa Mining Co Ltd | Method for recovering platinum group metal |
| CN103383193A (en) * | 2012-05-04 | 2013-11-06 | 无锡市东优环保科技有限公司 | Integrated dust removing method for high-dust flue gas of electric furnace |
| CN103334010A (en) * | 2013-07-15 | 2013-10-02 | 贵研资源（易门）有限公司 | Method for fusing enriched precious metal from spent automotive catalyst |
| CN104561570A (en) * | 2013-09-25 | 2015-04-29 | 安徽工业大学 | Using method of electroslag remelting refining slag by efficiently using returned slag |
| CN107058747A (en) * | 2017-05-03 | 2017-08-18 | 中南大学 | The method of oxygen-enriched top blowing copper weld pool collocation processing waste printed circuit board |
| CN108441647A (en) * | 2018-03-07 | 2018-08-24 | 东北大学 | A kind of method that pyrogenic process recycles noble metal platinum in automobile dead catalyst |
| CN208733194U (en) * | 2018-08-29 | 2019-04-12 | 兰州有色冶金设计研究院有限公司 | A kind of device handling spent noble metals bearing catalysts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108866342B (en) | 2023-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101705367B (en) | Copper nickel smelting process with oxygen-enriched side-blowing bath smelting method | |
| JP4350711B2 (en) | Industrial waste melting process | |
| CN102758090A (en) | Treatment method for electroplating sludge | |
| ES2334870B1 (en) | MODIFIED INDUCTION OVEN FOR THE ELIMINATION OF SIDERURGICAL WASTE WITH CINC WITH RECOVERY OF ITS METALS. | |
| JP6378683B2 (en) | Plasma induced transpiration | |
| CN112941324A (en) | Novel process for comprehensively utilizing resources containing heavy metal hazardous wastes | |
| CN109652653A (en) | A kind of inorganic dangerous waste system process | |
| JPH0835783A (en) | Simultaneous melting method of dust and lumpy calcined slug for melting discharged from waste incinerating facility | |
| CN208733194U (en) | A kind of device handling spent noble metals bearing catalysts | |
| US5467365A (en) | Process for the recovery of lead arising especially from the active material of spent batteries, and electric furnace intended especially for the use of the process | |
| FI82076B (en) | Process for working-up waste products which contain metals | |
| US4029494A (en) | Process for smelting and recovery of a material containing noble metals | |
| CN108866342A (en) | A kind of device and method handling spent noble metals bearing catalysts | |
| US3900696A (en) | Charging an electric furnace | |
| CN110860314A (en) | Carbon catalytic oxidant and method for treating carbon-containing waste residue of electrolytic aluminum | |
| RU2461776C1 (en) | Non-waste thermal processing method of solid public wastes, and unit for its implementation | |
| JP5446990B2 (en) | NaS battery processing method | |
| JP2001239231A (en) | Method of recovering heavy metals from discharged material in waste incineration facility | |
| US4402491A (en) | Apparatus for reclaiming lead and other metals | |
| Tropenauer et al. | Circular economy model of cathode waste processing | |
| CN115637331B (en) | Method and apparatus for reducing slag | |
| SU1002378A1 (en) | Method for processing pyrite cynders | |
| JPH0643675Y2 (en) | Recovery device for sensible heat of molten slag in electric furnace | |
| RU2160320C1 (en) | Method of reworking secondary materials containing precious metals | |
| JP3814768B2 (en) | Arc furnace operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |