CN102826776A - Method for simultaneously extracting glass microbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black - Google Patents
Method for simultaneously extracting glass microbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black Download PDFInfo
- Publication number
- CN102826776A CN102826776A CN2012102727914A CN201210272791A CN102826776A CN 102826776 A CN102826776 A CN 102826776A CN 2012102727914 A CN2012102727914 A CN 2012102727914A CN 201210272791 A CN201210272791 A CN 201210272791A CN 102826776 A CN102826776 A CN 102826776A
- Authority
- CN
- China
- Prior art keywords
- ash
- flyash
- gained
- described method
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a method for simultaneously extracting glass microsbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black, relating to the technical field of cyclic utilization of waste resources. The method comprises the following steps: separating power plant fly ash to obtain floating beads, settling beads, magnetic beads, carbon powder and residual ash, wherein the floating beads and settling beads can be treated to be used as a high-grade filler which can be added into PVC (polyvinyl chloride) and other thermoplastic materials; adding clay and water into the magnetic beads, carbon powder and residual ash, mixing, granulating, drying, and smelting in a submerged arc furnace to obtain the aluminum-silicon-iron alloy; dipping the residual ash in alkali to obtain a sodium silicate mixed solution, and introducing CO2 to obtain the white carbon black; and sending the rest of residual ash into a coal mine goaf to carry out filling. The invention comprehensively utilizes high-value resources in the fly ash, and fully utilizes the energy; and the invention lowers the cost of the plastic products, lowers the energy consumption, reduces the emission of CO2, and implements zero discharge of waste, thereby having significant economic benefit and environmental value.
Description
Technical field
The invention belongs to waste resource recycle utilization field, particularly a kind of flyash extracts the method for glass microballon coproduction simultaneously AL-Si-Fe alloy, WHITE CARBON BLACK.
Background technology
Modern heat power plant boiler adopts levigate coal dust to act as a fuel, and in spraying into burner hearth, just burns with the form of fine particle or group, fully discharges heat energy.Lime-ash after the burning is different according to coal ash content, generally accounts for raw coal quality 15% ~ 40%, and lime-ash uses the collected particulate dust of the facility that gathers dust to be flyash or flying dust from fume exhaust system, accounts for total lime-ash 70% ~ 80%.Flyash is the non-existent powdered ore material resource that is produced by artificial process of nature, wherein contains silicon, aluminium, iron, calcium, also has a spot of magnesium, titanium, sulphur, potassium, sodium and phosphorus, also has various trace elements such as arsenic, cadmium, mercury, lead and zinc.Along with China Power industry installed capacity increases fast; The corresponding quick increase of whole nation flyash quantity discharged; A large amount of dischargings of flyash are to producing and people's living environment has caused very big harm, and appropriation of land, influences human health etc. at contaminated soil, polluted-water, polluted air.Handle a large amount of flyash that industrial production produced, it is infeasible storing up placement, will cause a series of harm, fundamentally solve the pollution problem that flyash causes, it is unique feasible effective way that flyash is reasonably developed.
Glass microballon in the flyash is a kind of multi-functional particulate material of preciousness; It is the spherical granules of coal-burning power plant's a kind of tiny, lightweight of discharging, smooth surface, hollow; Its main chemical compositions is the oxide compound of silicon, aluminium, iron; Accounting for 30% ~ 50% of flyash total amount, is the staple product of the senior utilization of flyash.Premium propertiess such as it has light weight, particle diameter is little, wear resistance is strong, ultimate compression strength is high, dispersion flows property is good, reflective, nontoxic; Can replace the higher artificial hollow microballon of cost; Be widely used in fields such as building materials, rubber, plastics, chemical industry, electronics, space flight, have good economic benefit and social benefit.
AL-Si-Fe alloy is widely used in steelworks as composite deoxidant.The density of AL-Si-Fe alloy is bigger than fine aluminium, gets into molten steel easily, and inner scaling loss is few, and than using fine aluminium to make reductor, the rate of utilization of aluminium is enhanced about more than once in steelmaking process.At present its working method is converted the method for mixing and two kinds of electric heating process, and converting the method for mixing and be with aluminium ingot, industrial silicon or ferrosilicon is raw material, through remelting, melting mixing is processed in proportion, and the cost height, energy consumption is big.Electric heating process makes with direct smelting of reductive agent in the hot stove in ore deposit for utilizing to contain aluminium silicate mineral and add steel cuttings or contain iron ore.Present used main raw material is bauxite, kaolin, silica etc., China's bauxite resource shortage, and the ore resource production cost that not only can increase in short supply, and also directly influence production is carried out.Fly ash in electric power plant contains higher silicon oxide and aluminum oxide, can carry out the smelting of AL-Si-Fe alloy.
WHITE CARBON BLACK is a hydrated SiO 2, and chemical formula is SiO
2NH
2O, it is of many uses, in every field such as rubber, plastics, agricultural chemicals, paint, pharmacy, papermaking, household chemicalss purposes is widely arranged.WHITE CARBON BLACK can be divided into 2 big types by working method, precipitated silica and thermal silica.Flyash is the waste that the coal-burning power plant discharges, and the flyash of annual power plant emission is up to more than one hundred million tons, and handling and utilizing flyash is an important problem.Contain aluminum oxide, silicon-dioxide, red stone in the flyash.In resource poor day by day today, from flyash, extracting silicon oxide is that flyash is turned waste into wealth, and the effective way of comprehensive utilization has good society and economic benefit.
China's energy structure is main with coal mainly, and the worked-out section that forms in the coal mining process causes formation damage, rock stratum to move and subsidence, cause the destruction in above ground structure, road, pipeline, water body and farmland etc., so that ecotope also receives very big influence.Therefore need carry out filling in the worked-out section, compaction material generally is river sand, coal gangue and fly ash in electric power plant.The flyash that the present invention will tell at last carries out goaf filling as compaction material, realizes total utilization of PCA, reduces environmental pollution, promotes human habitat, realizes waste resource " zero release ".
Summary of the invention
In view of this, the objective of the invention is the method that a kind of flyash extracts glass microballon coproduction simultaneously AL-Si-Fe alloy, WHITE CARBON BLACK,, and realize zero release, solve energy-conservation and problem environmental protection with the comprehensive utilization of realization flyash waste resource.
In order to realize the foregoing invention purpose, technical scheme of the present invention realizes as follows:
A kind of flyash extract glass microballon coproduction simultaneously AL-Si-Fe alloy, WHITE CARBON BLACK method, comprise the steps:
The fly ash in electric power plant that 1) will contain aluminium, iron, silicon mine carries out sorting and obtains glass microballon, carbon dust and surplus ash, with the gained glass microballon further segmentation obtain floating pearl, magnetic bead and heavy pearl;
2) float pearl or the heavy pearl with the step 1) gained coats directly or through coupling agent and handles back (to improve the dispersiveness in thermoplastics); Add in the thermoplastics as high-grade filler; Produce modified product, can select to use according to the different demands of product;
3) with magnetic bead, carbon dust and the surplus ash of step 1) gained, mix, add clay (sticker) and water, evenly batch mixing utilizes ball press that material is carried out balling-up;
4) pelletizing with the step 3) gained carries out drying to remove moisture wherein, and dry back smelts in the hot stove in ore deposit, and molten iron is cooled off, and obtains AL-Si-Fe alloy;
5) with the surplus ash of step 1) gained, through NaOH or Na
2CO
3After the solution leaching,, obtain mixed solution, mixed solution is filtered, obtain sodium silicate solution, feed carbon and divide CO at the closed reactor internal heating
2, obtain WHITE CARBON BLACK (SiO
2);
6) after above-mentioned steps is accomplished, remaining surplus ash will be transported to coal mine gob, carry out filling, realize the zero release of flyash, solve the colliery problem of subsiding.
Preferably, in the wherein said step 1), divide and to elect dry separation or wet split as, look power plant's particular case and decide.
Preferably, wherein said step 1) and step 2) in, floating bead directly is 1 ~ 260 μ m, light weight, hollow.
Preferably, wherein said step 2) in, the particle diameter of heavy pearl is greater than 200 orders.
Preferably, wherein said step 2) in, coupling agent is for accounting for the silane or the titanic acid ester of floating pearl or heavy pearl weight 2 ~ 5%.
Preferably, wherein said step 2) in, thermoplastics is SE, Vestolen PP 7052, Vilaterm or PS.
Preferably, in wherein said step 1) and the step 3), magnetic bead is a flyash through magnetic separation gained iron-holder greater than 55% glass microballon.
Preferably, in wherein said step 1) and the step 3), carbon dust is a flyash through the unburned carbon of flotation gained, and the reductive agent when producing AL-Si-Fe alloy.
Preferably, after the surplus ash of sorting is the sorting of flyash process in wherein said step 1), step 3) and the step 5), remove the remainder of glass microballon and carbon dust.
Preferably, in the wherein said step 3), the weight that adds clay accounts for 7% ~ 12% of magnetic bead, carbon dust and surplus grey weight sum; The weight that adds entry is 8% ~ 15% of magnetic bead, carbon dust, surplus ash and clay weight sum.
Preferably, in the wherein said step 4), the diameter of pelletizing is 10 ~ 30mm.
Preferably, in the wherein said step 4), pelletizing carries out drying, and institute's heat requirement comes from molten iron refrigerative waste heat.
Preferably, in the wherein said step 4), the smelting temperature in the hot stove in ore deposit is 1800 ℃ ~ 2300 ℃, and the used time is 2 ~ 4 hours.
Preferably, in the wherein said step 5), carbon divides CO
2CO for power plant emission
2, realize CO
2Reduction of discharging.
Preferably, NaOH or the Na in the wherein said step 5)
2CO
3The mass concentration of solution is 20% ~ 55%.
Preferably, NaOH or the Na in the wherein said step 5)
2CO
3Solution weight is 2 ~ 8 times of surplus grey weight.
Preferably, be 10 ~ 50 minutes the heat-up time in the closed reactor in the wherein said step 5).
The present invention compared with prior art has following advantage:
The present invention has carried out higher value application to flyash, has obtained products such as the high-grade filler of glass microballon, AL-Si-Fe alloy, WHITE CARBON BLACK respectively, and coal mine gob has been carried out filling, has realized the zero release of waste resource;
The heat of cooling AL-Si-Fe alloy is used for the pelletizing drying again among the present invention, is used for the heating of alkali leaching water glass process, has realized the comprehensive utilization of heat, reaches purpose of energy saving;
The present invention extracts WHITE CARBON BLACK from sodium silicate solution, can utilize the CO of power plant emission
2, reach the purpose of reduction of discharging;
The present invention produces the used reductive agent of AL-Si-Fe alloy, comes from the carbon dust in the flyash, perhaps other carbonaceous refuse, and cost of material is cheap, has reduced production cost;
Substance flow, all effectively recycles of energy stream are not discharged any waste, energy-conserving and environment-protective among the present invention;
The flyash that the present invention is remaining can carry out the filling of coal mine gob, solves the surface subsidence problem, has improved the mining area people's lives;
The present invention has considered the characteristics of flyash, combines the material characteristic of each technology, has systematically solved the problem of changing rejected material to useful resource comprehensive utilization.
Description of drawings
Fig. 1 extracts glass microballon coproduction AL-Si-Fe alloy, WHITE CARBON BLACK and filling synoptic diagram for flyash;
Fig. 2 is used for PVC and thermoplastic material filler synoptic diagram for flyash extracts glass microballon.
Embodiment
For ease of practical implementation step of the present invention and the effect that reaches are had further understanding, combine the accompanying drawing preferred embodiment that develops simultaneously to specify as follows at present.
Embodiment 1:
As shown in Figure 2, flyash is transported between sorting car from power plant for self-supply and obtains glass microballon, carbon dust and surplus ash through the air classifier sorting, institute is obtained glass microballon further obtain floating pearl, heavy pearl and magnetic bead through gravity treatment, flotation, magnetic separation.Wherein float pearl and heavy pearl through account for float pearl or heavy pearl weight 2 ~ 5% silane or titanate coupling agent coat processing.(such as floating pearl or heavy pearl is got 100kg; Coupling agent adds 2 ~ 5kg) processing backs, and (magnetic bead in the glass microballon also can coat and do filler as high-grade filler; Just effect is less than floating pearl and heavy pearl); Add in PVC (SE), PP (Vestolen PP 7052), PE (Vilaterm), the PS thermoplastic materials such as (PS) processing modifiedly, produce thermoplastic products such as different PVC, PP, PE, PS.The float pearl, heavy pearl, magnetic bead, carbon dust that are obtained also can be sold outward; Can be applicable to catalyzer, LCD material, space flight with matrix material, extraction iron aluminium field etc.
As shown in Figure 1, the surplus ash behind the classify precipitate bead, the interpolation mass concentration is 20% ~ 55% NaOH or (Na
2CO
3) solution (weight is 2 ~ 8 times of surplus ash), leach, in closed reactor, heated 10 ~ 50 minutes, obtain mixed solution.Mixed solution is filtered, obtain sodium silicate solution, the carbon that feeds from power plant divides CO
2, obtain WHITE CARBON BLACK (SiO
2).
The surplus ash of sorting gained, the own coal mine gob of the company that can be transported to carries out filling, reduces surface collapse, makes flyash obtain comprehensive utilization, realizes the zero release of waste resource.
Embodiment 2:
Shown in Fig. 1, fly ash in electric power plant is carried out sorting, obtain floating pearl, heavy pearl, magnetic bead, carbon dust and surplus ash.Float pearl and get 100kg, the silane of 2 ~ 5kg, titanate coupling agent mix, and coat processing, as high-grade filler, are added in PVC (SE), PP (Vestolen PP 7052), PE (Vilaterm), the PS thermoplastic materials such as (PS).Heavy pearl is chosen the above particle diameter of 200 orders through screening, coats according to the method described above or is added directly in the thermoplastic products such as PVC, PP, PE, PS, helps improving mechanical performance of products, thermotolerance, reduces cost.
With magnetic bead 15kg, carbon dust 40kg, surplus grey 25kg, clay 9kg, water 10kg (also can add coal slime provides carbon, bauxitic clay to provide aluminium, silica that raw materials such as silicon are provided) rolls mixing; Make ball after mixing; Pelletizing is carried out drying, and used heat is a molten iron refrigerative waste heat; Dried pelletizing gets into mine heat furnace smelting, 1800 ℃ ~ 2300 ℃ of smelting temperatures, 2 ~ 4 hours used time; Molten iron is poured out, cooled off, the refrigerative waste heat is used for the drying and the heating of extracting the WHITE CARBON BLACK process of previous stage; After the molten iron cooling, ingot casting obtains AL-Si-Fe alloy.
NaOH or Na with surplus ash and mass concentration 20% ~ 55%
2CO
3Solution is that the ratio of 1:2 ~ 8 is mixed according to weight percent, and in closed reactor, heating mixed 10 ~ 50 minutes, and (used heat comes from cooling molten iron waste heat) obtains mixed solution.Mixed solution is filtered, obtain sodium silicate solution, utilize the carbon of power plant to divide CO
2, obtain WHITE CARBON BLACK (SiO
2).
The surplus ash of sorting gained, the own coal mine gob of the company that is transported to carries out filling, reduces surface subsidence, improves mining area people life.
The above is merely embodiments of the invention, should be understood that; For the those of ordinary skill in the present technique; Under the prerequisite that does not break away from core technology characteristic of the present invention, can also do some improvement and retouching, these retouchings and improvement also should belong to scope of patent protection of the present invention.
Claims (9)
1. a flyash extracts the method for glass microballon coproduction simultaneously AL-Si-Fe alloy, WHITE CARBON BLACK, it is characterized in that, comprises the steps:
The fly ash in electric power plant that 1) will contain aluminium, iron, silicon mine carries out sorting and obtains glass microballon, carbon dust and surplus ash, and the gained glass microballon is further segmented sorting to obtain floating pearl, magnetic bead and heavy pearl;
2) with the step 1) gained float pearl or heavy pearl directly or through coupling agent coat handle after, add in the thermoplastics as high-grade filler, produce modified product;
3) magnetic bead, carbon dust and the surplus ash with the step 1) gained mixes, and adds clay and water during mixing, after batch mixing is even, utilizes ball press that material is carried out balling-up;
4) step 3) gained pelletizing is carried out drying to remove moisture wherein, dry back smelts in the hot stove in ore deposit, and molten iron is cooled off, and obtains AL-Si-Fe alloy;
5) with the surplus ash of step 1) gained, through NaOH or Na
2CO
3After the solution leaching,, obtain mixed solution, mixed solution is filtered, obtain sodium silicate solution, feed carbon and divide CO at the closed reactor internal heating
2, obtain WHITE CARBON BLACK;
6) through above-mentioned steps, also have remaining surplus ash, will be transported to coal mine gob, carry out filling.
2. according to the described method of claim 1, it is characterized in that, in the said step 1), divide and elect dry separation or wet split as.
3. according to the described method of claim 1, it is characterized in that said step 1) and step 2) in, floating bead directly is 1 ~ 260 μ m, light weight, hollow.
4. according to the described method of claim 1, it is characterized in that said step 2) in, the particle diameter of heavy pearl is greater than 200 orders; Coupling agent is for accounting for the silane or the titanic acid ester of floating pearl or heavy pearl weight 2 ~ 5%; Thermoplastics is SE, Vestolen PP 7052, Vilaterm or PS.
5. according to the described method of claim 1, it is characterized in that in said step 1) and the step 3), magnetic bead is a flyash through magnetic separation gained iron-holder greater than 55% glass microballon; Carbon dust is a flyash through the unburned carbon of flotation gained, and the reductive agent when producing AL-Si-Fe alloy.
6. according to the described method of claim 1, it is characterized in that, in said step 1), step 3) and the step 5), after surplus ash is the sorting of flyash process, remove the remainder of glass microballon and carbon dust.
7. according to the described method of claim 1, it is characterized in that in the said step 3), the weight that adds clay accounts for 7% ~ 12% of magnetic bead, carbon dust and surplus grey weight sum, the weight that adds entry is 8% ~ 15% of magnetic bead, carbon dust, surplus ash and clay weight sum.
8. according to the described method of claim 1, it is characterized in that in the said step 4), the diameter of pelletizing is 10 ~ 30mm; Pelletizing carries out drying, and institute's heat requirement comes from molten iron refrigerative waste heat; Smelting temperature in the hot stove in ore deposit is 1800 ℃ ~ 2300 ℃, and the used time is 2 ~ 4 hours.
9. according to the described method of claim 1, it is characterized in that in the said step 5), carbon divides CO
2CO for power plant emission
2NaOH or Na
2CO
3The mass concentration of solution is 20% ~ 55%; NaOH or Na
2CO
3Solution weight is 2 ~ 8 times of surplus grey weight; Be 10 ~ 50 minutes the heat-up time in the closed reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272791.4A CN102826776B (en) | 2012-08-02 | 2012-08-02 | Method for simultaneously extracting glass microbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272791.4A CN102826776B (en) | 2012-08-02 | 2012-08-02 | Method for simultaneously extracting glass microbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102826776A true CN102826776A (en) | 2012-12-19 |
| CN102826776B CN102826776B (en) | 2014-07-09 |
Family
ID=47330120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210272791.4A Expired - Fee Related CN102826776B (en) | 2012-08-02 | 2012-08-02 | Method for simultaneously extracting glass microbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102826776B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355573A (en) * | 2014-09-30 | 2015-02-18 | 赤峰金辉科技有限公司 | Fly ash comprehensive utilization process method |
| RU2587165C1 (en) * | 2014-11-25 | 2016-06-20 | Общество с ограниченной ответственностью "Комплексное обслуживание заводов" | Method of recycling dust of exhaust gases from metallurgical production |
| CN110129565A (en) * | 2019-05-15 | 2019-08-16 | 东北大学 | The method for producing Antaciron as raw material coreless armature feeding using aluminium ash |
| CN110371986A (en) * | 2018-04-13 | 2019-10-25 | 国家能源投资集团有限责任公司 | Carbon divides the processing method of reactor and carbon point method and flyash |
| CN114477288A (en) * | 2021-12-16 | 2022-05-13 | 中南大学 | Comprehensive utilization and treatment method for wolframite resources |
| WO2022204006A1 (en) * | 2021-03-23 | 2022-09-29 | Avient Corporation | Polymer blends comprising recycled plasticizer oil and recycled glass beads |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2694862C1 (en) * | 2018-11-26 | 2019-07-17 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Method for processing of dust wastes formed during cleaning of gases of ore-thermal furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676630A (en) * | 2005-04-18 | 2005-10-05 | 登封电厂集团有限公司 | Method for smelting ferro-silicon-aluminium alloy using flyash |
| CN101306826A (en) * | 2008-06-20 | 2008-11-19 | 北京世纪地和科技有限公司 | Process for extracting metallurgy-level aluminum oxide from fly ash or slag |
| CN101469378A (en) * | 2007-12-24 | 2009-07-01 | 同方环境股份有限公司 | Method for preparing alsifer from high-alumina fly ash and magnetic beads |
| CN101993085A (en) * | 2010-11-29 | 2011-03-30 | 中煤平朔煤业有限责任公司 | Method for producing white carbon black for toothpaste from fly ash |
-
2012
- 2012-08-02 CN CN201210272791.4A patent/CN102826776B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676630A (en) * | 2005-04-18 | 2005-10-05 | 登封电厂集团有限公司 | Method for smelting ferro-silicon-aluminium alloy using flyash |
| CN101469378A (en) * | 2007-12-24 | 2009-07-01 | 同方环境股份有限公司 | Method for preparing alsifer from high-alumina fly ash and magnetic beads |
| CN101306826A (en) * | 2008-06-20 | 2008-11-19 | 北京世纪地和科技有限公司 | Process for extracting metallurgy-level aluminum oxide from fly ash or slag |
| CN101993085A (en) * | 2010-11-29 | 2011-03-30 | 中煤平朔煤业有限责任公司 | Method for producing white carbon black for toothpaste from fly ash |
Non-Patent Citations (2)
| Title |
|---|
| 《新型建筑材料》 20090430 凌友志 等 "粉煤灰"三步法"综合利用新工艺初探" 第21－22页 1-9 , 第4期 * |
| 凌友志 等: ""粉煤灰"三步法"综合利用新工艺初探"", 《新型建筑材料》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355573A (en) * | 2014-09-30 | 2015-02-18 | 赤峰金辉科技有限公司 | Fly ash comprehensive utilization process method |
| RU2587165C1 (en) * | 2014-11-25 | 2016-06-20 | Общество с ограниченной ответственностью "Комплексное обслуживание заводов" | Method of recycling dust of exhaust gases from metallurgical production |
| CN110371986A (en) * | 2018-04-13 | 2019-10-25 | 国家能源投资集团有限责任公司 | Carbon divides the processing method of reactor and carbon point method and flyash |
| CN110371986B (en) * | 2018-04-13 | 2021-09-03 | 国家能源投资集团有限责任公司 | Carbon separation reactor, carbon separation method and treatment method of fly ash |
| CN110129565A (en) * | 2019-05-15 | 2019-08-16 | 东北大学 | The method for producing Antaciron as raw material coreless armature feeding using aluminium ash |
| WO2022204006A1 (en) * | 2021-03-23 | 2022-09-29 | Avient Corporation | Polymer blends comprising recycled plasticizer oil and recycled glass beads |
| CN114477288A (en) * | 2021-12-16 | 2022-05-13 | 中南大学 | Comprehensive utilization and treatment method for wolframite resources |
| CN114477288B (en) * | 2021-12-16 | 2024-01-09 | 中南大学 | Comprehensive utilization processing method for wolframite resources |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102826776B (en) | 2014-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102826776B (en) | Method for simultaneously extracting glass microbeads from fly ash and coproducing aluminum-silicon-iron alloy and white carbon black | |
| CN104911356B (en) | A kind of solid waste gas ash, the comprehensive recycling process of vanadium slag containing zinc-iron | |
| CN103981370B (en) | A kind of comprehensive reutilization method of cyanidation tailings | |
| CN103614562B (en) | A kind of melting furnace process Steel Plant solid waste processing method | |
| CN102363218B (en) | Method for producing copper-powder-containing iron by reducing copper-containing furnace cinders directly | |
| CN203728902U (en) | Integrated solid waste gas ash and zinc-containing ferrovanadium slag recovery device | |
| CN102766718B (en) | Method for producing sponge iron and zinc-rich materials by blast furnace zinc-containing ash | |
| CN106399699A (en) | Process for treating sludge with copper import | |
| CN109111208B (en) | Iron tailing baked brick and preparation method thereof | |
| CN101113341B (en) | Method for preparing combustible gas by using metallurgy molten slag and solid combustible substance | |
| CN101775507B (en) | Extraction method for extracting vanadium pentoxide from low grade oxidized type navajoite | |
| CN103993164B (en) | The method of the many metals of the plumbous zinc of oxysulphied smeltingization separation simultaneously | |
| CN101746765B (en) | Method and device for separating and purifying silicon dioxide micropowder from electric furnace dust | |
| CN102319617A (en) | Process for recovering iron and carbon elements from blast furnace gas ash | |
| CN105296694A (en) | Technological method for reducing block masses containing carbon, iron, zinc, etc. into molten iron, zinc, etc. in blast furnace molten iron trough | |
| CN102010122A (en) | Method for preparing inorganic slag fibers by using iron tailings | |
| CN1059370A (en) | Chromium residue detoxifying, smelting contain the method for chromium pig iron | |
| CN105132949A (en) | Comprehensive utilization method of aluminum electrolytic waste cathode materials | |
| CN105002362A (en) | Comprehensive treatment method for red mud and boron mud | |
| CN102633447A (en) | Process method for preparing palletized blast-furnace titanium slag into active slag powder | |
| CN108439877B (en) | Method for preparing solid bricks from solid waste generated in zinc hydrometallurgy | |
| CN109836128A (en) | Utilize the haydite and preparation method thereof of aggregate sandstone tailing production | |
| CN109929995A (en) | A kind of aluminium ash pellet binder and preparation method thereof | |
| CN102274785A (en) | Novel environmental-friendly gold ore dressing process | |
| CN110760673B (en) | Zinc leaching residue volatilizing kiln treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 |