CN104894382A - Recovery treatment method of electrolytic aluminum ash and refractory material lining waste - Google Patents
Recovery treatment method of electrolytic aluminum ash and refractory material lining waste Download PDFInfo
- Publication number
- CN104894382A CN104894382A CN201510296489.6A CN201510296489A CN104894382A CN 104894382 A CN104894382 A CN 104894382A CN 201510296489 A CN201510296489 A CN 201510296489A CN 104894382 A CN104894382 A CN 104894382A
- Authority
- CN
- China
- Prior art keywords
- waste
- waste material
- silicon carbide
- treatment method
- recovery
- 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
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
Abstract
The invention discloses a recovery treatment method of electrolytic aluminum ash and a refractory material lining waste; the refractory lining waste is divided into an impermeable insulation waste and a silicon carbide waste; and the method comprises the following steps: (1) the impermeable insulation waste is crushed and levigated to mix with the aluminum ash to press a pellet; (2) vacuum distillation: electrolyte and metal sodium are crystallized on a crystallizer; the remainder part has main components of Al2O3 and SiO2; the silicon carbide waste is distilled at a temperature of 1000-1200 DEG C in vacuum after being crushed; the electrolyte is crystallized on the crystallizer; and the remainder part is a silicon nitride and silicon carbide refractory material. The method is simple in flow; the useful components can be fully recycled; the recovery cost is low; and meanwhile, the environmental pollution is reduced, so that the application prospect is excellent.
Description
Technical field
The present invention relates to a kind of recovery and treatment method of electrolytic aluminum scraps, particularly the recovery and treatment method of a kind of electrolytic aluminum aluminium ash and refractory lining waste material.
Background technology
Aluminium is the metallic substance being only second to iron and steel, and its output is first of non-ferrous metal.The production capacity of China's Aluminum electrolysis in 2014 is 3,584 ten thousand tons, and actual output is 2,810 ten thousand tons, is the first in the world Chan Lv big country.
Aluminium Electrolysis discharges four kinds of solid wastes, and wherein two kinds is useless charcoal cathode inner lining and anode breeze, and belonging to the solid waste that main component is charcoal and electrolyte components, is had introduction in 2015102691795 patent applications at application number.
In two kinds of waste materials in addition, the first is aluminium ash: aluminium ash is grey powder-material under the sieve that in the aluminium slag that produces of aluminium slag, holding furnace slag hitting that pouring aluminium ladle adheres to and aluminum casting process, the aluminium slag that produces obtains after screening or ball milling after the aluminium slag of the reunion shape of screening extraction bulk again; The main component of aluminium ash is aluminum oxide, and it is except containing except a small amount of aluminium carbide, and also containing the aluminium powder that part is fine, its containing metal aluminum amount accounts for the 10-15% of aluminium ash total amount; Aluminum oxide in aluminium ash due to density little, be not suitable as the raw material of electrolysis of aluminum, still do not find other purposes at present, therefore the individual workship of electrolytic aluminium factory or process aluminium slag is general is all landfilled this aluminium ash as waste material or abandons it, this not only causes the waste of resource, and causes impact to environment.
The refractory lining waste material produced when also having a kind of solid waste to be electrolytic cell overhaul, a this refractory lining waste material part is bottom cathode carbon pieces and the infiltration of sidepiece has ionogen and basic metal, reacts with ionogen and sodium Metal 99.5 the Impervious Materials and flame-proof thermal insulation material waste material that create the compound be made up of alkalimetal oxide, aluminum oxide and silicon oxide; Another part be the infiltration of trough side part have ionogen and metallic aluminium and by ionogen and metallic aluminium corroded by the carborundum refractory liner waste material of silicon nitride bonded silicon; Only used on the electrolyzer of larger current intensity by the silicon carbide lining of silicon nitride bonded silicon, these two portions are referred to as the refractory lining waste material of electrolyzer.
At present when electrolytic cell overhaul, these the two kinds of waste refractory materials liners dug from electrolyzer are not all recycled and process, but are deposited in open area, impact surrounding environment.
Summary of the invention
For current electrolysis aluminium manufacturer, efficient recovery and utilization are not yet obtained to the refractory lining waste material produced when aluminium ash and electrolytic cell overhaul, and to the problem that environment impacts, the invention provides the recovery and treatment method of a kind of electrolytic aluminum aluminium ash and refractory lining waste material.
Refractory lining waste material of the present invention be divided into two portions, first part is Impervious Materials and flame-proof thermal insulation material waste material, is called anti-seepage heat preservation waste material; Second section is by the carborundum refractory liner waste material of silicon nitride bonded silicon, is called silicon carbide waste.
Anti-seepage heat preservation waste recovery treatment process of the present invention is by after the pulverizing of anti-seepage heat preservation waste material also grinds, with aluminium ash mix suppress agglomerating, then under the temperature condition of vacuum and 1000 ~ 1400 DEG C, utilize the aluminium in aluminium ash that the sodium oxide reduction in anti-seepage heat preservation waste material is generated sodium Metal 99.5, simultaneously by the electrolyte components Distillation recovery in anti-seepage heat preservation waste material, make electrolyte components and sodium oxide Component seperation, realize harmless treatment.
Can contain a small amount of ferroaluminium in above-mentioned anti-seepage heat preservation waste material, be generate because the aluminium liquid of the bottom land that bleeds in damaged groove and cathode steel bar react, the aluminium in ferroaluminium also participates in redox reaction.
Anti-seepage heat preservation waste recovery treatment process of the present invention is carried out according to the following steps:
1, anti-seepage heat preservation waste material is pulverized and levigate to granularity below 80 orders, then mix with aluminium ash, blending ratio is by weight being 1:(0.5 ~ 2), then be pressed into pelletizing;
2, under pelletizing being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1400 DEG C of vacuum distillings, the vacuum distilling time is 1 ~ 10h, the crystallization on crystallizer of ionogen and sodium Metal 99.5, and the main component of remainder is Al
2o
3and SiO
2.
The reaction formula of aforesaid method is:
3Na
2O+2Al(l)→6Na+ Al
2O
3(s) （1）
With
CaF
2(s)→CaF
2(g) （2）；
Wherein react (1) and occur in 800 ~ 1100 DEG C, when having CaF in anti-seepage heat preservation waste material
2time, reaction (2) occurs, and occurrence temperature is at 1300 ~ 1400 DEG C.
In aforesaid method, when anti-seepage heat preservation waste material contains KF and/or LiF, KF and/or LiF be crystallization on crystallizer, works as K
2o and/or Li
2during O, on crystallizer, crystallization also has K and/or Li, and the reaction formula of step 2 also comprises:
LiF(s) →LiF(g) （3）、
KF(s) →KF(g) （4）、
3K
2O(s) +2Al(l)→6K(g)+Al
2O
3(s) （5）
And/or
3Li
2O(s) +2Al(l)→6Li (g)+Al
2O
3(s) （6）；
Wherein react (3) and (4) and occur in 800 ~ 1100 DEG C.
Above-mentioned ionogen main component is sodium aluminum fluoride and Sodium Fluoride, also containing aluminum fluoride and magnesium fluoride, can also contain Calcium Fluoride (Fluorspan), Potassium monofluoride and lithium fluoride; When containing Potassium monofluoride and/or lithium fluoride, also collect in crystallizer and have potassium metal and/or metallic lithium.
Above-mentioned remainder is as the raw material producing new Impervious Materials.
Silicon carbide waste recovery and treatment method of the present invention is that silicon carbide waste is placed in vacuum tank, vacuum distilling at the temperature of 1000 ~ 1200 DEG C, utilize the characteristic of the very high-vapor-pressure of the electrolysis of fluorides matter be etched in silicon carbide waste, by ionogen and silicon carbide Component seperation.
Silicon carbide waste recovery and treatment method of the present invention is:
Silicon carbide waste is crushed to granularity at below 60mm, then under being placed in vacuum tightness≤100Pa condition, 1000 ~ 1200 DEG C are heated to, at 1000 ~ 1200 DEG C of vacuum distilling 1 ~ 10h, ionogen is crystallization on crystallizer, and remainder is silicon nitride combined with silicon carbide refractory material.
Above-mentioned silicon nitride combined with silicon carbide refractory material is as the raw material of the silicon carbide brick of the new silicon nitride bonded silicon of production
In aforesaid method, the pressure being pressed into pelletizing is 30 ~ 100MPa.
Method flow of the present invention is simple, and useful component can fully be recycled, and cost recovery is low, reduces environmental pollution simultaneously, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is electrolytic aluminum aluminium ash in the embodiment of the present invention and the recovery and treatment method schematic flow sheet of refractory lining waste material.
Embodiment
The composition of the anti-seepage heat preservation waste material in the embodiment of the present invention is by weight percentage containing Al
2o
310 ~ 60%, F 2 ~ 10%, Ca 1 ~ 10%, Na 2 ~ 20%, SiO
210 ~ 60%, all the other are impurity.
In the embodiment of the present invention, aluminium ash composition is by weight percentage containing Al 10 ~ 30%, Al
2o
330 ~ 60%, all the other are impurity.
It is cylindric for being pressed into pelletizing in the embodiment of the present invention, and diameter is at 20 ~ 30mm, and height is at 30 ~ 40mm.
In the embodiment of the present invention, the electrolytical rate of recovery is more than 95%.
Impurity weight content≤2% of silicon nitride combined with silicon carbide refractory material in the embodiment of the present invention.
Embodiment 1
Anti-seepage heat preservation waste material is pulverized and levigate to granularity below 80 orders, then mix with aluminium ash, blending ratio is by weight being 1:(0.5 ~ 2), then be pressed into pelletizing; The pressure being pressed into pelletizing is 30 ~ 100MPa;
Under pelletizing being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1400 DEG C of vacuum distillings, the vacuum distilling time is 1 ~ 10h, the crystallization on crystallizer of ionogen and sodium Metal 99.5, and the main component of remainder is Al
2o
3and SiO
2, as the raw material producing new Impervious Materials;
Ionogen main component is sodium aluminum fluoride and Sodium Fluoride, also containing aluminum fluoride, magnesium fluoride, Calcium Fluoride (Fluorspan), Potassium monofluoride and lithium fluoride;
Silicon carbide waste is crushed to granularity at below 60mm, then under being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1200 DEG C, at 1000 ~ 1200 DEG C of vacuum distilling 1 ~ 10h, ionogen is crystallization on crystallizer, remainder is silicon nitride combined with silicon carbide refractory material, as the raw material of the silicon carbide brick of the new silicon nitride bonded silicon of production.
Embodiment 2
Anti-seepage heat preservation waste material is pulverized and levigate to granularity below 80 orders, then mix with aluminium ash, blending ratio is by weight being 1:(0.5 ~ 2), then be pressed into pelletizing; The pressure being pressed into pelletizing is 30 ~ 100MPa;
Under pelletizing being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1400 DEG C of vacuum distillings, the vacuum distilling time is 1 ~ 10h, the crystallization on crystallizer of ionogen and sodium Metal 99.5, and the main component of remainder is Al
2o
3and SiO
2, as the raw material producing new Impervious Materials;
Ionogen main component is sodium aluminum fluoride and Sodium Fluoride;
Silicon carbide waste is crushed to granularity at below 60mm, then under being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1200 DEG C, at 1000 ~ 1200 DEG C of vacuum distilling 1 ~ 10h, ionogen is crystallization on crystallizer, remainder is silicon nitride combined with silicon carbide refractory material, as the raw material of the silicon carbide brick of the new silicon nitride bonded silicon of production.
Embodiment 3
Anti-seepage heat preservation waste material is pulverized and levigate to granularity below 80 orders, then mix with aluminium ash, blending ratio is by weight being 1:(0.5 ~ 2), then be pressed into pelletizing; The pressure being pressed into pelletizing is 30 ~ 100MPa;
Under pelletizing being placed in vacuum tightness≤100Pa condition, being heated to 1000 ~ 1400 DEG C of vacuum distillings (has CaF in anti-seepage heat preservation waste material
2), the vacuum distilling time is 1 ~ 10h, the crystallization on crystallizer of ionogen and sodium Metal 99.5, and the main component of remainder is Al
2o
3and SiO
2, as the raw material producing new Impervious Materials;
Ionogen main component is sodium aluminum fluoride and Sodium Fluoride;
Silicon carbide waste is crushed to granularity at below 60mm, then under being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1200 DEG C, at 1000 ~ 1200 DEG C of vacuum distilling 1 ~ 10h, ionogen is crystallization on crystallizer, remainder is silicon nitride combined with silicon carbide refractory material, as the raw material of the silicon carbide brick of the new silicon nitride bonded silicon of production.
Embodiment 4
Anti-seepage heat preservation waste material is pulverized and levigate to granularity below 80 orders, then mix with aluminium ash, blending ratio is by weight being 1:(0.5 ~ 2), then be pressed into pelletizing; The pressure being pressed into pelletizing is 30 ~ 100MPa;
Under pelletizing being placed in vacuum tightness≤100Pa condition, being heated to 1000 ~ 1400 DEG C of vacuum distillings (has CaF in anti-seepage heat preservation waste material
2), the vacuum distilling time is 1 ~ 10h, the crystallization on crystallizer of ionogen and sodium Metal 99.5, and the main component of remainder is Al
2o
3and SiO
2, as the raw material producing new Impervious Materials;
Ionogen main component is sodium aluminum fluoride and Sodium Fluoride;
Silicon carbide waste is crushed to granularity at below 60mm, then under being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1200 DEG C, at 1000 ~ 1200 DEG C of vacuum distilling 1 ~ 10h, ionogen is crystallization on crystallizer, remainder is silicon nitride combined with silicon carbide refractory material, as the raw material of the silicon carbide brick of the new silicon nitride bonded silicon of production.
Claims (3)
1. electrolytic aluminum aluminium ash and the recovery and treatment method of refractory lining waste material, described refractory lining waste material be divided into two portions, first part is Impervious Materials and flame-proof thermal insulation material waste material, is called anti-seepage heat preservation waste material; Second section is by the carborundum refractory liner waste material of silicon nitride bonded silicon, is called silicon carbide waste; It is characterized in that carrying out according to the following steps:
(1) anti-seepage heat preservation waste material is pulverized and levigate to granularity below 80 orders, then mix with aluminium ash, blending ratio is by weight being 1:(0.5 ~ 2), then be pressed into pelletizing;
(2) under pelletizing being placed in vacuum tightness≤100Pa condition, be heated to 1300 ~ 1400 DEG C of vacuum distillings, the vacuum distilling time is 1 ~ 10h, the crystallization on crystallizer of ionogen and sodium Metal 99.5, and the main component of remainder is Al
2o
3and SiO
2.
2. the recovery and treatment method of a kind of electrolytic aluminum aluminium ash according to claim 1 and refractory lining waste material, it is characterized in that described silicon carbide waste recovery and treatment method is: silicon carbide waste is crushed to granularity at below 60mm, then under being placed in vacuum tightness≤100Pa condition, be heated to 1000 ~ 1200 DEG C, at 1000 ~ 1200 DEG C of vacuum distilling 1 ~ 10h, ionogen is crystallization on crystallizer, and remainder is silicon nitride combined with silicon carbide refractory material.
3. the recovery and treatment method of a kind of electrolytic aluminum aluminium ash according to claim 1 and refractory lining waste material, is characterized in that the described pressure being pressed into pelletizing is 30 ~ 100MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296489.6A CN104894382B (en) | 2015-06-03 | 2015-06-03 | Recovery treatment method of electrolytic aluminum ash and refractory material lining waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296489.6A CN104894382B (en) | 2015-06-03 | 2015-06-03 | Recovery treatment method of electrolytic aluminum ash and refractory material lining waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104894382A true CN104894382A (en) | 2015-09-09 |
| CN104894382B CN104894382B (en) | 2017-05-17 |
Family
ID=54027332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510296489.6A Active CN104894382B (en) | 2015-06-03 | 2015-06-03 | Recovery treatment method of electrolytic aluminum ash and refractory material lining waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104894382B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517209A (en) * | 2016-11-07 | 2017-03-22 | 中国铝业股份有限公司 | Method for treating spent cathodes of spent potlinings of aluminum electrolysis cells |
| CN106744964A (en) * | 2016-11-21 | 2017-05-31 | 西北矿冶研究院 | Process for recovering silicon carbide from silicon carbide waste |
| CN106868246A (en) * | 2017-03-21 | 2017-06-20 | 山东南山铝业股份有限公司 | A kind of environment-friendly type phosphorus pig iron additive, its preparation method and phosphorous pig iron carbon increasing sulfur method |
| CN107352567A (en) * | 2016-05-09 | 2017-11-17 | 青海大学 | The method that vacuum reduction distilation prepares high purity aluminium oxide |
| CN108275684A (en) * | 2017-05-19 | 2018-07-13 | 上海彭浦特种耐火材料厂有限公司 | The useless silicon nitride combined silicon carbide brick recoverying and utilizing method generated by aluminium cell |
| CN108585826A (en) * | 2018-05-17 | 2018-09-28 | 东北大学 | The method for preparing magnesium aluminate spinel using Quadratic aluminum dust |
| CN109207738A (en) * | 2018-11-30 | 2019-01-15 | 东北大学 | A kind of processing method of aluminium cell waste refractory materials |
| CN110016557A (en) * | 2019-05-15 | 2019-07-16 | 东北大学 | The method for producing ferro-silicon-aluminium as raw material electric arc furnace smelting using aluminium ash |
| CN110144457A (en) * | 2019-05-15 | 2019-08-20 | 东北大学 | The method that AL-Si-Fe alloy is produced in the pretreatment carbon thermal reduction of aluminium ash |
| CN111499397A (en) * | 2020-04-15 | 2020-08-07 | 中南大学 | Method for preparing reclaimed materials of aluminum oxide and silicon oxide by using electrolytic bath aluminum-silicon overhaul residues |
| CN113277517A (en) * | 2021-05-24 | 2021-08-20 | 昆明理工大学 | Method for separating electrolyte in waste cathode carbon block of aluminum electrolysis and synchronously producing metal silicon |
| CN115124357A (en) * | 2022-05-12 | 2022-09-30 | 郑州大学 | Method for preparing dry type impermeable material by using aluminum ash clinker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560148A (en) * | 2012-01-19 | 2012-07-11 | 东北大学 | Method for smelting lithium by vacuum aluminothermic reduction |
| CN102976776A (en) * | 2012-12-04 | 2013-03-20 | 贵州铝城铝业原材料研究发展有限公司 | Refractory brick recycling method for electrolytic cell overhaul slag |
| CN102989744A (en) * | 2012-12-04 | 2013-03-27 | 贵州铝城铝业原材料研究发展有限公司 | Method for recycling mixed material dreg of overhauling groove slag of electrolytic cell |
-
2015
- 2015-06-03 CN CN201510296489.6A patent/CN104894382B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560148A (en) * | 2012-01-19 | 2012-07-11 | 东北大学 | Method for smelting lithium by vacuum aluminothermic reduction |
| CN102976776A (en) * | 2012-12-04 | 2013-03-20 | 贵州铝城铝业原材料研究发展有限公司 | Refractory brick recycling method for electrolytic cell overhaul slag |
| CN102989744A (en) * | 2012-12-04 | 2013-03-27 | 贵州铝城铝业原材料研究发展有限公司 | Method for recycling mixed material dreg of overhauling groove slag of electrolytic cell |
Non-Patent Citations (1)
| Title |
|---|
| 黄军同等: "利用铝灰和粉煤灰铝热还原氮化制备镁铝尖晶石-刚玉-Sialon复相材料", 《稀有金属材料与工程》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352567B (en) * | 2016-05-09 | 2019-10-18 | 青海大学 | The method that vacuum reduction distilation prepares high purity aluminium oxide |
| CN107352567A (en) * | 2016-05-09 | 2017-11-17 | 青海大学 | The method that vacuum reduction distilation prepares high purity aluminium oxide |
| CN106517209A (en) * | 2016-11-07 | 2017-03-22 | 中国铝业股份有限公司 | Method for treating spent cathodes of spent potlinings of aluminum electrolysis cells |
| CN106744964A (en) * | 2016-11-21 | 2017-05-31 | 西北矿冶研究院 | Process for recovering silicon carbide from silicon carbide waste |
| CN106868246A (en) * | 2017-03-21 | 2017-06-20 | 山东南山铝业股份有限公司 | A kind of environment-friendly type phosphorus pig iron additive, its preparation method and phosphorous pig iron carbon increasing sulfur method |
| CN106868246B (en) * | 2017-03-21 | 2019-01-04 | 山东南山铝业股份有限公司 | A kind of phosphorous pig iron carbon increasing sulfur method |
| CN108275684A (en) * | 2017-05-19 | 2018-07-13 | 上海彭浦特种耐火材料厂有限公司 | The useless silicon nitride combined silicon carbide brick recoverying and utilizing method generated by aluminium cell |
| CN108275684B (en) * | 2017-05-19 | 2022-07-26 | 上海彭浦特种耐火材料厂有限公司 | Method for recycling waste silicon nitride combined silicon carbide brick produced by aluminum electrolytic cell |
| CN108585826A (en) * | 2018-05-17 | 2018-09-28 | 东北大学 | The method for preparing magnesium aluminate spinel using Quadratic aluminum dust |
| CN109207738B (en) * | 2018-11-30 | 2020-07-10 | 东北大学 | Treatment method of waste refractory material of aluminum electrolytic cell |
| CN109207738A (en) * | 2018-11-30 | 2019-01-15 | 东北大学 | A kind of processing method of aluminium cell waste refractory materials |
| CN110144457A (en) * | 2019-05-15 | 2019-08-20 | 东北大学 | The method that AL-Si-Fe alloy is produced in the pretreatment carbon thermal reduction of aluminium ash |
| CN110016557B (en) * | 2019-05-15 | 2020-05-12 | 东北大学 | Method for preparing ferro-silicon-aluminum by smelting aluminum ash serving as raw material in electric arc furnace |
| CN110016557A (en) * | 2019-05-15 | 2019-07-16 | 东北大学 | The method for producing ferro-silicon-aluminium as raw material electric arc furnace smelting using aluminium ash |
| CN111499397A (en) * | 2020-04-15 | 2020-08-07 | 中南大学 | Method for preparing reclaimed materials of aluminum oxide and silicon oxide by using electrolytic bath aluminum-silicon overhaul residues |
| CN111499397B (en) * | 2020-04-15 | 2021-04-09 | 中南大学 | Method for preparing reclaimed materials of aluminum oxide and silicon oxide by using electrolytic bath aluminum-silicon overhaul residues |
| CN113277517A (en) * | 2021-05-24 | 2021-08-20 | 昆明理工大学 | Method for separating electrolyte in waste cathode carbon block of aluminum electrolysis and synchronously producing metal silicon |
| CN113277517B (en) * | 2021-05-24 | 2022-06-03 | 昆明理工大学 | Method for separating electrolyte in waste cathode carbon block of aluminum electrolysis and synchronously producing metal silicon |
| CN115124357A (en) * | 2022-05-12 | 2022-09-30 | 郑州大学 | Method for preparing dry type impermeable material by using aluminum ash clinker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104894382B (en) | 2017-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104894382B (en) | Recovery treatment method of electrolytic aluminum ash and refractory material lining waste | |
| Yang et al. | Silicon recycling and iron, nickel removal from diamond wire saw silicon powder waste: synergistic chlorination with CaO smelting treatment | |
| CN110016557A (en) | The method for producing ferro-silicon-aluminium as raw material electric arc furnace smelting using aluminium ash | |
| WO2017031798A1 (en) | Apparatus for treating and recycling aluminum electrolysis solid waste | |
| CN103343363B (en) | The electrolytical production method of a kind of electrolgtic aluminium | |
| CN105088274A (en) | Device for treating and recycling aluminum electrolysis solid waste | |
| CN110129506B (en) | Method for preparing ferro-silicon-aluminum alloy by carbon thermal reduction of waste refractory material pretreatment | |
| CN110144457B (en) | Method for preparing aluminum-silicon-iron alloy by carbon thermal reduction of aluminum ash pretreatment | |
| CN101811695A (en) | Method for recovering graphite from electrolytic aluminum waste cathode carbon block | |
| CN110129565A (en) | The method for producing Antaciron as raw material coreless armature feeding using aluminium ash | |
| CN110616295B (en) | Harmless utilization process of waste carbon blocks of electrolytic aluminum | |
| CN106433850B (en) | Method for preparing cement kiln fuel by using aluminum electrolysis waste cathode | |
| CN101063215B (en) | Method for extracting electrolyte in aluminum electrolytic anodic carbon residue | |
| CN107720723A (en) | A kind of method of overall treatment aluminium electrolytic tank | |
| CN110117718B (en) | Method for smelting and preparing ferro-silicon-aluminum by using waste refractory material as raw material in electric arc furnace | |
| CN102010932B (en) | Method for producing deoxidizer by utilizing waste silicon carbide of aluminium electrolysis | |
| CN110016565B (en) | Method for preparing ferro-silicon-aluminum alloy by feeding hollow electrode with waste refractory material as raw material | |
| CN106517209A (en) | Method for treating spent cathodes of spent potlinings of aluminum electrolysis cells | |
| CN204959051U (en) | Aluminium electroloysis solid waste material's device is handled and retrieved | |
| CN106939368B (en) | A kind of ladle carburant and preparation method thereof | |
| CN109338033A (en) | A kind of molten iron covering agent and preparation method | |
| CN110004300B (en) | Method for preparing ferrosilicon alloy by using aluminum ash as raw material through plasma jet feeding | |
| CN110846688A (en) | Preparation method of aluminum-silicon-titanium alloy | |
| CN109609776A (en) | A method of copper cobalt in copper vessel slag is extracted using waste cathode of aluminum electrolytic cell carbon block | |
| CN102011145B (en) | Method for recycling electrolytes and producing aluminum-silicon alloy as byproduct by using aluminum electrolysis waste mixing material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |