CN110407233A - Aluminium ash recovery process and system - Google Patents
Aluminium ash recovery process and system Download PDFInfo
- Publication number
- CN110407233A CN110407233A CN201910774006.7A CN201910774006A CN110407233A CN 110407233 A CN110407233 A CN 110407233A CN 201910774006 A CN201910774006 A CN 201910774006A CN 110407233 A CN110407233 A CN 110407233A
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- CN
- China
- Prior art keywords
- aluminium
- aluminium ash
- ash
- hydrolysis
- water
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- 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.)
- Pending
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 65
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 239000004411 aluminium Substances 0.000 title claims abstract description 51
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 239000002956 ash Substances 0.000 claims abstract description 46
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 31
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 16
- 230000007062 hydrolysis Effects 0.000 claims abstract description 14
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 14
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 11
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims abstract description 11
- 238000000502 dialysis Methods 0.000 claims abstract description 11
- 238000009792 diffusion process Methods 0.000 claims abstract description 11
- 238000000909 electrodialysis Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 238000001728 nano-filtration Methods 0.000 claims abstract description 10
- 238000000498 ball milling Methods 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000011282 treatment Methods 0.000 claims abstract description 7
- 238000001704 evaporation Methods 0.000 claims abstract description 6
- 230000008020 evaporation Effects 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims abstract description 3
- 239000010865 sewage Substances 0.000 claims abstract description 3
- 239000002351 wastewater Substances 0.000 claims abstract description 3
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000003301 hydrolyzing effect Effects 0.000 claims description 17
- 238000000354 decomposition reaction Methods 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 229940095054 ammoniac Drugs 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000003337 fertilizer Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000005185 salting out Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- -1 aluminium hydroxide Chemical compound 0.000 abstract 1
- 229910017083 AlN Inorganic materials 0.000 description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000002075 main ingredient Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of aluminium ash recovery process and system, belong to environmental technology field, its recovery process is: the hydrolysis of 1. aluminium ashes, Ammonia recovery, so that its fineness is reached 200 mesh or more including aluminium ash is carried out repeatedly ball milling, is separated by solid-liquid separation with sorting sieve separation, 2. recycling aluminium oxide, including aluminium hydroxide, wastewater treatment, it is precipitated using nanofiltration, reverse osmosis, electrodialysis and diffusion dialysis Combined Treatment waste water, 3. Sewage treatments, including mixed salt concentration, evaporation, salt low temperature.Beneficial effect is: the various compositions in aluminium ash being separately recovered by class, restore the self-value of various compositions, removal process zero-emission；Equipment used 80% is traditional chemical industry equipment and solid-liquid separating equipment, and equipment maturity is high, price is low, good operation stability, processing capacity are big.
Description
Technical field
The invention belongs to environmental technology field, it is related to the improvement of a kind of old metal recovery method and device.
Background technique
When aluminum profile enterprise produces aluminum profile, first has to aluminium ingot founding into aluminium bar and reconcile alloy content, then use aluminium bar
Profile is squeezed out on extruder.The fusion-casting process of aluminium bar can generate a large amount of aluminium lime-ash, wherein when containing aluminium alloy composition, founding
Additive salt and aluminium nitride of addition etc..Usual method is that aluminium lime-ash is carried out a series of alum recovery processing, is finally become
At the aluminium ash that composition containing pure aluminum is considerably less.Main ingredient in aluminium ash is aluminium nitride, aluminium oxide and additive salt, and meeting water can
Release a large amount of ammonia and heat, water-soluble aobvious strong basicity and the soluble-salt containing high concentration.This aluminium ash is wanted in environmental protection
It asks not tight period arbitrarily to be filled, is identified as danger wastes in the recent period, need to carry out harmless treatment.
Summary of the invention
The object of the present invention is to provide a kind of aluminium ash recovery process and systems, it uses wet recycling process, will be in aluminium ash
Multiple components separation, release the property that its danger removes waste, go back the due value of primary aluminum ash.
Technical solution of the present invention:
This recovery process is:
1. the hydrolysis of aluminium ash, Ammonia recovery
1.1 aluminium ash ball millings: aluminium ash, which is carried out repeatedly ball milling, makes its fineness reach 200 mesh or more；
1.1.1 this process separating sieve can largely separate remaining primary aluminum in aluminium ash；
1.1.2 the aluminium ash for reaching fineness is transported in hydrolytic decomposition pot；
1.2. aluminium ash hydrolyzes:
1.2.1 aluminium ash is added in hydrolytic decomposition pot according to solid-liquid mass ratio 1:7-10 and is hydrolyzed, while by catalyst and aluminium ash
Sodium carbonate catalyst is added in mass ratio 1:5-9, and controls the temperature 60-90 degree of material in tank, is steadily carried out using hydrolytic process；
1.2.2 sulfate of ammoniac is made in the ammonia of hydrolysis forward and backward phase, 50% or less low concentration of content, does chemical fertilizer or conduct
Raw material is in market sale.Hydrolysis mid-term, ammonia purity is high yield is big, can be directly prepared into use or market inside liquid ammonia
Sale；
2. recycling aluminium oxide:
The 2.1 aluminium ashes for completing hydrolysis carry out 300 meshes point；
2.1.1 ball milling is repeated in the material that 300 mesh are not achieved；
2.1.2 remaining primary aluminum in aluminium ash can be separated and be recycled again by this process separating sieve；
Fineves (aluminium hydroxide) more than 2.2300 mesh is separated by solid-liquid separation:
2.2.1 aluminium hydroxide is through filter press filters pressing；
2.2.2 the aluminium hydroxide washing after filters pressing；
Aluminium hydroxide calcining after 2.3 washings, produces aluminium oxide；
3. Sewage treatment:
3.1 aluminium hydroxides are separated by solid-liquid separation water, washing water returns to technique storage tank respectively；
3.2 wastewater treatments: nanofiltration, reverse osmosis, electrodialysis and diffusion dialysis Combined Treatment waste water are utilized；
3.2.1 it is recycled in sodium carbonate catalyst system；
3.2.2 mixed salt concentration, evaporation, salt low temperature are precipitated；
3.2.2.1 condensed water recycles in system；
3.2.2.2 it is salted out using the temperature difference, drying is used to make founding additive；
3.2.2.3 the water after salting out enters technique storage tank, circulating and evaporating.
System and device of the invention is:
Feed bin is connected to ball mill inlet, the premenstrual separating sieve of ball mill outlet with hydrolytic decomposition pot is closed is connected to, technique storage tank with
The closed connection of hydrolytic decomposition pot, hydrolytic decomposition pot ammonia outlet with Ammonia recovery tank is closed is connected to, the aluminium ash outlet after the completion of hydrolytic decomposition pot hydrolysis
With after separating sieve be connected to filter press；
Filter press filters out washing pipe and is connected to technique storage tank, technique outlet and nanofiltration, reverse osmosis, electrodialysis and diffusion
The connection of dialysis combined unit entrance, nanofiltration, reverse osmosis, electrodialysis and diffusion dialysis combined unit water outlet and technique storage tank connect
Logical, nanofiltration, reverse osmosis, electrodialysis and the outlet of diffusion dialysis combined unit concentrated water are connected to evaporator.
The beneficial effects of the present invention are: the various compositions in aluminium ash are separately recovered by class, itself of various compositions is restored
Value, removal process zero-emission；Equipment used 80% is traditional chemical industry equipment and solid-liquid separating equipment, equipment maturity
It is high, price is low, good operation stability, processing capacity are big.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is present system equipment flowsheet.
Specific embodiment
Embodiment 1
The present invention is described further with reference to the accompanying drawing:
As shown in Figure 2, wherein 11 be feed bin, 12 be preceding ball mill, 13 be preceding primary aluminum collecting cart, 14 be hydrolytic decomposition pot, 15 be
Ammonia recycling device, 21 be rear separating sieve, 22 be rear ball mill, 23 be rear primary aluminum collecting cart, 25 be rotary kiln, 26 be transmission
Machine, 31 be technique storage tank, 32 be reverse osmosis, electrodialysis and diffusion dialysis combined unit, 33 be evaporator, 34 be salt collecting cart.
First part: hydrolysis of aluminium nitride, Ammonia recovery in aluminium ash.
1, aluminium ash is added into feed bin 11；
2, ball mill 12 is run, hydrolytic decomposition pot 14 is entered by the aluminium ash of separating sieve, the ball milling repeatedly that can't pass, until all
Pass through.The primary aluminum sorted out enters primary aluminum collecting cart 13, concentrates and returns to founding workshop；
3, suitable water is added into hydrolytic decomposition pot 14 from technique storage tank 31 by pipeline, while is heated to hydrolytic decomposition pot, make aluminium
Ash is hydrolyzed；
4, ammonia recycling device 15, the Ammonia recovery that will be generated in hydrolytic decomposition pot 14 are opened；
Second part: recycling aluminium oxide
1, sorted 21 sorting of sieve of the aluminium ash that hydrolysis is completed.Enter filter press 24 by the aluminium ash of separating sieve and carries out solid-liquid point
From, the aluminium ash that can't pass through the ball milling repeatedly of ball mill 22, pass through until all.The primary aluminum sorted out enters primary aluminum collecting cart
23, it concentrates and returns to founding workshop；
2, the aluminium ash main ingredient in filter press is aluminium hydroxide, enters rotary kiln 25 through conveyer and is sintered into oxidation
Aluminium is sold after the packaging of conveyer 26；
Part III: recycling is salted out
1, filter press 24 is separated by solid-liquid separation water, washing water returns to technique storage tank 31 respectively；
2, the water in technique storage tank 31 through nanofiltration mould, reverse osmosis mould, electrodialysis and diffusion dialysis combined unit 32 processing after,
Fresh water is returned in technique storage tank 31 and is recycled, and concentrated water will be salted out through the evaporation of evaporator 33, and salt is collected in 34 salt collecting carts
Packing and selling.
Claims (2)
1. a kind of aluminium ash recovery process, technique is:
A. the hydrolysis of aluminium ash, Ammonia recovery
1.1 aluminium ash ball millings: aluminium ash, which is carried out repeatedly ball milling, makes its fineness reach 200 mesh or more；
1.1.1 this process separating sieve can largely separate remaining primary aluminum in aluminium ash；
1.1.2 the aluminium ash for reaching fineness is transported in hydrolytic decomposition pot；
1.2. aluminium ash hydrolyzes:
1.2.1 aluminium ash is added in hydrolytic decomposition pot according to solid-liquid mass ratio 1:7-10 and is hydrolyzed, while by catalyst and aluminium ash quality
Sodium carbonate catalyst is added than 1:5-9, and controls the temperature 60-90 degree of material in tank, is steadily carried out using hydrolytic process；
1.2.2 sulfate of ammoniac is made in the ammonia of hydrolysis forward and backward phase, 50% or less low concentration of content, makees chemical fertilizer or as raw material
In market sale；Hydrolysis mid-term, ammonia purity is high yield is big, can be directly prepared into use or market inside liquid ammonia and sell
It sells；
B. aluminium oxide is recycled
The 2.1 aluminium ashes for completing hydrolysis carry out 300 meshes point；
2.1.1 ball milling is repeated in the material that 300 mesh are not achieved；
2.1.2 remaining primary aluminum in aluminium ash can be separated and be recycled again by this process separating sieve；
Fineves more than 2.2300 mesh is separated by solid-liquid separation:
2.2.1 aluminium hydroxide is through filter press filters pressing；
2.2.2 the aluminium hydroxide washing after filters pressing；
Aluminium hydroxide calcining after 2.3 washings, produces aluminium oxide；
C. Sewage treatment
3.1 aluminium hydroxides are separated by solid-liquid separation water, washing water returns to technique storage tank respectively；
3.2 wastewater treatments: nanofiltration, reverse osmosis, electrodialysis and diffusion dialysis Combined Treatment waste water are utilized；
3.2.1 it is recycled in sodium carbonate catalyst system；
3.2.2 mixed salt concentration, evaporation, salt low temperature are precipitated；
3.2.2.1 condensed water recycles in system；
3.2.2.2 it is salted out using the temperature difference, drying is used to make founding additive；
3.2.2.3 the water after salting out enters technique storage tank, circulating and evaporating.
2. a kind of aluminium ash recovery system: it is characterized in that: feed bin is connected to ball mill inlet, the premenstrual separating sieve of ball mill outlet and water
Solve the closed connection of tank, technique storage tank with hydrolytic decomposition pot is closed is connected to, hydrolytic decomposition pot ammonia outlet with Ammonia recovery tank is closed is connected to, hydrolysis
Aluminium ash outlet after the completion of tank hydrolysis with after separating sieve be connected to filter press；
Filter press filters out washing pipe and is connected to technique storage tank, technique outlet and nanofiltration, reverse osmosis, electrodialysis and diffusion dialysis
The connection of combined unit entrance, nanofiltration, reverse osmosis, electrodialysis and diffusion dialysis combined unit water outlet are connected to technique storage tank,
Nanofiltration, reverse osmosis, electrodialysis and the outlet of diffusion dialysis combined unit concentrated water are connected to evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910774006.7A CN110407233A (en) | 2019-08-21 | 2019-08-21 | Aluminium ash recovery process and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910774006.7A CN110407233A (en) | 2019-08-21 | 2019-08-21 | Aluminium ash recovery process and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110407233A true CN110407233A (en) | 2019-11-05 |
Family
ID=68368384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910774006.7A Pending CN110407233A (en) | 2019-08-21 | 2019-08-21 | Aluminium ash recovery process and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110407233A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394585A (en) * | 2020-04-22 | 2020-07-10 | 北京中冶设备研究设计总院有限公司 | Gradient utilization treatment process for casting aluminum slag |
| CN111874931A (en) * | 2020-07-23 | 2020-11-03 | 辽宁忠旺集团有限公司 | Harmless treatment process for secondary aluminum ash |
| CN112194159A (en) * | 2020-09-28 | 2021-01-08 | 江西省科学院应用物理研究所 | Harmless recycling treatment process for secondary aluminum ash |
| CN112813275A (en) * | 2020-12-23 | 2021-05-18 | 洛阳天瑞环保科技有限公司 | Method for inhibiting reaction loss of metal aluminum in aluminum ash wet-process aluminum extraction process |
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| CN106629774A (en) * | 2016-12-31 | 2017-05-10 | 佛山市吉力达铝材科技有限公司 | Method for harmlessly treating aluminum ash |
| CN109678180A (en) * | 2019-02-14 | 2019-04-26 | 平罗县中兴碳素有限公司 | A kind of method of mixed type Quadratic aluminum dust comprehensive reutilization |
| CN211035258U (en) * | 2019-08-21 | 2020-07-17 | 于沛洲 | Aluminum ash recovery system |
-
2019
- 2019-08-21 CN CN201910774006.7A patent/CN110407233A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106629774A (en) * | 2016-12-31 | 2017-05-10 | 佛山市吉力达铝材科技有限公司 | Method for harmlessly treating aluminum ash |
| CN109678180A (en) * | 2019-02-14 | 2019-04-26 | 平罗县中兴碳素有限公司 | A kind of method of mixed type Quadratic aluminum dust comprehensive reutilization |
| CN211035258U (en) * | 2019-08-21 | 2020-07-17 | 于沛洲 | Aluminum ash recovery system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394585A (en) * | 2020-04-22 | 2020-07-10 | 北京中冶设备研究设计总院有限公司 | Gradient utilization treatment process for casting aluminum slag |
| CN111874931A (en) * | 2020-07-23 | 2020-11-03 | 辽宁忠旺集团有限公司 | Harmless treatment process for secondary aluminum ash |
| CN112194159A (en) * | 2020-09-28 | 2021-01-08 | 江西省科学院应用物理研究所 | Harmless recycling treatment process for secondary aluminum ash |
| CN112813275A (en) * | 2020-12-23 | 2021-05-18 | 洛阳天瑞环保科技有限公司 | Method for inhibiting reaction loss of metal aluminum in aluminum ash wet-process aluminum extraction process |
| CN112813275B (en) * | 2020-12-23 | 2023-04-07 | 洛阳天瑞环保科技有限公司 | Method for inhibiting reaction loss of metal aluminum in aluminum ash wet-process aluminum extraction process |
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