CN106623356A - Red mud recovery method - Google Patents
Red mud recovery method Download PDFInfo
- Publication number
- CN106623356A CN106623356A CN201611038639.4A CN201611038639A CN106623356A CN 106623356 A CN106623356 A CN 106623356A CN 201611038639 A CN201611038639 A CN 201611038639A CN 106623356 A CN106623356 A CN 106623356A
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- Prior art keywords
- red mud
- product
- suspension
- dried
- magnetic separation
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Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000000725 suspension Substances 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 238000007885 magnetic separation Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 5
- 229910001570 bauxite Inorganic materials 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 9
- 239000003063 flame retardant Substances 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004131 Bayer process Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000004079 fireproofing Methods 0.000 description 13
- 239000012774 insulation material Substances 0.000 description 12
- 239000002994 raw material Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a red mud recovery method. Red mud is mixed with sodium hydroxide for heating; after the red mud is molten, the red mud is cooled to reach the room temperature, and is dissolved out by boiled water; suspension is used for magnetic separation; magnetic substances are washed and dried to obtain refined iron ores; and meanwhile, the magnetically separated suspension is dried to obtain insulation flame retardant materials. The method reuses the red mud to obtain the refined iron ores and the insulation flame retardant materials, and increases the utilization rate of the red mud. The method is simple and feasible, provides new thoughts for economical and effective treatment of the red mud by the Bayer process, and enables the national oxide aluminum industry to obtain higher economic benefit and social benefit.
Description
Technical field
The present invention relates to a kind of recovery method of red mud, the high red mud of particularly a kind of process is simple, low cost, utilization rate
Recovery method.
Background technology
Red mud is also known as red soil, is that aluminium industry extracts the contaminative waste residue discharged during aluminum oxide.Average often produces 1 ton
Aluminum oxide, incidentally produces 1～2 ton of red mud, and China up to counts as the fourth-largest alumina producing state of the world, the red mud of annual discharge
Million tons.Substantial amounts of red mud sufficiently effective can not be utilized, and can only be stacked by large-area stockyard, occupy a large amount of soils,
Also serious pollution is caused to environment.About 70,000,000 tons of the red mud that the whole world is produced every year, the red mud that China produces every year is
More than 30000000 tons.The production for producing to the mankind of substantial amounts of red mud, life cause many shadows directly or indirectly
Ring, so reduce yield and the harm of red mud to greatest extent, realize by all kinds of means, the resource of big quantity it is extremely urgent.By
The problems such as residual impurity complicated component and encapsulation, alkalescence, radioactivity, red mud is difficult to process application, current process side
There is utilization rate deficiency or high cost, the difficult point of complex process in method.
The content of the invention
It is an object of the present invention to provide a kind of recovery method of red mud.Methods described is recycled to red mud, is obtained
To iron ore concentrate and heat-insulating fireproof material, the utilization rate of red mud is improve.And simple possible, it is economical, effectively processes Bayer process
Red mud provides new thinking, makes China's aluminum oxide industry obtain bigger economic benefit, social benefit.
Technical scheme：
A kind of recovery method of red mud, red mud is mixed with NaOH, heating, after red mud melts, is cooled to room temperature, then
Boiling water dissolution, suspension magnetic separation is used to obtain iron ore concentrate and the suspension after magnetic separation, the suspension after magnetic separation is dried, and must be incubated resistance
Combustible material.
The recovery method of aforesaid red mud, specifically includes following steps：
1st, NaOH is added in red mud, is mixed, obtain A product；
2nd, A product are heated to 900-1600 DEG C by room temperature, then naturally cool to room temperature, obtain B product；
3rd, B product are placed in the boiling water that temperature is 90-100 DEG C, form suspension, obtain C product；
4th, by magnetic plant, collection obtains iron ore concentrate and the suspension after magnetic separation to C product, and the suspension after magnetic separation is designated as D
Product；
5th, D product are dried, and obtain E product, i.e. heat-insulating fireproof material.
The method that aforesaid red mud is reclaimed, in the step 1, red mud is with the weight ratio of NaOH：1:2-10.
The method that aforesaid red mud is reclaimed, the red mud is with the weight ratio of NaOH：1:6.
The method that aforesaid red mud is reclaimed, described red mud includes the red mud that various bauxite into alumina produce and attached
Liquid.
Compared with prior art, the inventive method is recycled to red mud, obtains iron ore concentrate and heat-insulating fireproof material,
Improve the utilization rate of red mud.And simple possible, for economy, effectively process Bayer process red mud provides new thinking, makes me
State's aluminum oxide industry obtains bigger economic benefit, social benefit.Specifically have the advantages that：
1st, separation (red mud and the NaOH of subject component in oxidation waste slag of aluminum are realized by most basic chemical means
From room temperature to 1100 DEG C～1600 DEG C after mixing, accelerate to melt red mud by high temperature, be subsequently cooled to room temperature, whole process
Middle NaOH is liquefied aluminium silico-calcium aggregate and amphoteric oxide), using the alkali solubility of the materials such as iron and sial, efficiently separate two
Class material, no matter how red mud composition changes, and is proportionally added into that NaOH is all separable to tap a blast furnace and suspension.
2nd, process is simple.First, the present invention does not include the techniques such as acidleach, concentration, crystallization, thermal decomposition, kind point, roasting.Work
Skill is simple.Secondly, the inventive method is reacted without acid, reduces consumption, has been saved the time, and can effectively be comprehensively utilized
The active principles such as iron, silicon, aluminium.Again, than iron, other elements suspension application direction after the drying plays positive work
With.
3rd, traditional iron selection technique of carbonizable substance reduction roasting-broken slurrying grinding-magnetic separation is shortened, the high alkalinity after iron is selected
Material also has the ground of reasonable utilization, and raw material selects wide, low cost.
4th, red mud is utilized, and is not produced secondary pollution, both reached waste reclamation, reduced again high-alkali
Property Substances Pollution, protects environment, resource has been saved, with larger social benefit, economic benefit.
5th, the performance of the performance of insulation material of the present invention insulation material similar with existing market is suitable, but price is more
It is low.Goal of the invention is reached.
Experimental example 1：Performance of heat protective material is tested
1st, material
1.1 insulation materials of the present invention：Produced by embodiment 1；
1.2 contrast insulation materials 1：Domestic (Qingdao seaization)；
1.3 contrast insulation materials 2：The U.S. (3M).
2nd, detection project and testing result
Fineness respectively to each material, real density, thermal conductivity factor, mechanical strength are tested, and test result is shown in Table
1。
The performance test results of table 1
As seen from table, performance of heat protective material of the present invention is suitable with existing performance of heat protective material.But relative to contrast insulation
For material 1 and contrast insulation material 2, the price of insulation material of the present invention is lower, and this is due to insulation material of the present invention
Raw material be with bauxite into alumina produce waste material (red mud and attached liquid) as raw material, raw material is easy to get, low cost, and without
From external import, so that price is low, only 3500 yuan/ton, compare than 1 low 2500 yuan/ton of insulation material, compare than insulation
2 low 5500 yuan/ton of material.
Embodiment 2：Flame-retardant ceramic rubber filling performance test
1 material
1.1 fire proofings of the present invention：Produced by embodiment 1；
1.2 contrast fire proofings 1：Guizhou Jingyu Silicon Material Co., Ltd. produces：
1.3 contrast fire proofings 2：Believe ten thousand rich (imports) in the village.
2nd, detection project and testing result
Particle diameter respectively to each material, proportion, it is tested using temperature, test result is shown in Table 2.
The each material properties test result of table 2
| Production unit | Fire proofing of the present invention | Contrast fire proofing 1 | Contrast fire proofing 2 |
| Particle diameter D50 | 2.7-6.3μm | 2.2-7.3μm | 3.5-5.5μm |
| Proportion | 2.2-2.4 | 2.3±0.1 | 2.30-2.50 |
| Using temperature | 530℃ | 500℃ | 510℃ |
| Price | 40 yuan/kg | 70 yuan/kg | 85 yuan/kg |
As seen from table, fire proofing performance of the present invention is suitable with the performance of existing fire proofing.But, relative to resistivity
For combustible material 1 and contrast fire proofing 2, the price of fire proofing of the present invention is lower, and price is far below market price, and this is
Due to the main component silica of main fire proofing of the invention, aluminum oxide, magnesia, calcium carbonate is waste residue offer, group
, more than 30%, also sodium ion of the reusable edible content more than 19%, raw material is easy to get, low cost for part content, so that
Price is low.And without from external import, so that price is low, only 40 yuan/kg.Compare than 1 low 30 yuan/kg of fire proofing,
Compare than 2 low 85 yuan/kg of fire proofing.
Specific embodiment
Embodiment 1.
A kind of red mud recycling method, specifically includes following steps：
(1) red mud is chosen；
(2) red mud of selection is quantitatively put into the crucible of chain-conveyer furnace, adds the NaOH of 2 times of weight of red mud, mixing；
(3) crucible is heated into 1600 DEG C (being conducive to discharging the moisture content protection crucible in attached liquid) by room temperature, then in chain
Room temperature is naturally cooled in formula stove；
(4) crucible is taken out from chain-conveyer furnace, it is in being put into 100 DEG C of boiling water, material in crucible is soluble in water, by pot
Block is dissolved in water and forms suspension entirely；
(5) magnetisable material in magnetic plant is washed and is dried by suspension by magnetic plant, obtain smart iron ore, can
With direct ironmaking or sale；Suspension drying after magnetic separation, can be used as production insulation material main material or production plastic, rubber
Fire-retardant filler raw material.
Embodiment 2.
A kind of red mud recycling method, specifically includes following steps：
(1) red mud or red mud and its attached liquid are chosen；
(2) red mud or red mud and its attached liquid of selection are quantitatively put into the crucible of chain-conveyer furnace, add 10 times of weight of red mud
NaOH, mixing；
(3) crucible is heated into 900 DEG C by room temperature, is conducive to discharging the moisture content protection crucible in attached liquid, then in chain type
Room temperature is naturally cooled in stove；
(4) crucible is taken out from chain-conveyer furnace, it is in being put into 90 DEG C of boiling water, material in crucible is entirely soluble in water, formed
Suspension；
(5) magnetisable material in magnetic plant is washed and is dried by suspension by magnetic plant, obtain smart iron ore, can
With direct ironmaking or sale；Suspension drying after magnetic separation, can be used as production insulation material main material or production plastic, rubber
Fire-retardant filler raw material.
Embodiment 3.
A kind of red mud recycling method, specifically includes following steps：
(1) red mud and its attached liquid are chosen；
(2) red mud and its attached liquid of selection are quantitatively put into the crucible of chain-conveyer furnace, add the hydroxide of 6 times of weight of red mud
Sodium, mixing；
(3) crucible is heated into 1300 DEG C (being conducive to discharging the moisture content protection crucible in attached liquid) by room temperature, then in chain
Room temperature is naturally cooled in formula stove；
(4) crucible is taken out from chain-conveyer furnace, it is in being put into 98 DEG C of boiling water, material in crucible is soluble in water, by pot
Block is dissolved in water and forms suspension entirely；
(5) magnetisable material in magnetic plant is washed and is dried by suspension by magnetic plant, obtain smart iron ore, can
With direct ironmaking or sale；Suspension drying after magnetic separation, can be used as production insulation material main material or production plastic, rubber
Fire-retardant filler raw material.
Claims (5)
1. a kind of recovery method of red mud, it is characterised in that：Red mud is mixed with NaOH, is heated, after red mud melts, cooling
To room temperature, then boiling water dissolution is used, suspension magnetic separation, magnetisable material is washed and is dried, and obtains smart iron ore, while by the suspension after magnetic separation
Liquid is dried, and obtains heat-insulating fireproof material.
2. the recovery method of red mud as claimed in claim 1, it is characterised in that：Specifically include following steps：
NaOH is added in red mud, is mixed, obtain A product；
（2）A product are heated to 900-1600 DEG C by room temperature, then naturally cool to room temperature, obtain B product；
（3）B product are placed in the boiling water that temperature is 90-100 DEG C, form suspension, obtain C product；
（4）C product obtain iron ore concentrate and the suspension after magnetic separation by magnetic plant, collection, and the suspension after magnetic separation is designated as D product；
（5）D product are dried, and obtain E product, i.e. heat-insulating fireproof material.
3. the method that red mud as claimed in claim 2 is reclaimed, it is characterised in that：The step（1）In, red mud and NaOH
Weight ratio be：1:2-10.
4. the method that red mud as claimed in claim 3 is reclaimed, it is characterised in that：The weight ratio of the red mud and NaOH
For：1:6.
5. the recovery method of red mud as claimed in claim 1 or 2, it is characterised in that：Described red mud includes various bauxite
Red mud and attached liquid that production aluminum oxide is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038639.4A CN106623356B (en) | 2016-11-23 | 2016-11-23 | A kind of recovery method of red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611038639.4A CN106623356B (en) | 2016-11-23 | 2016-11-23 | A kind of recovery method of red mud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106623356A true CN106623356A (en) | 2017-05-10 |
| CN106623356B CN106623356B (en) | 2019-05-03 |
Family
ID=58811316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611038639.4A Expired - Fee Related CN106623356B (en) | 2016-11-23 | 2016-11-23 | A kind of recovery method of red mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106623356B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205430A (en) * | 2019-07-09 | 2019-09-06 | 广东工业大学 | A method of strengthening reduction roasting and recycles red mud iron component |
| US10975284B2 (en) | 2018-02-06 | 2021-04-13 | Southwest Petroleum University | Well cementation working solution prepared from red mud, slag and waste drilling fluids |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB990403A (en) * | 1961-10-24 | 1965-04-28 | Montedison Spa | Process of treating red slurries |
| CN101413054A (en) * | 2008-12-09 | 2009-04-22 | 中南大学 | Technology for comprehensively utilizing high ferro aluminiferous material |
| CN101723713A (en) * | 2009-12-10 | 2010-06-09 | 湖南华菱湘潭钢铁有限公司 | Overall treatment method of steel works sintering dust |
| CN103131214A (en) * | 2013-02-05 | 2013-06-05 | 茌平县金德赤泥资源再利用有限公司 | Technological method of using alumina byproduct red mud for producing polyvinyl chloride (PVC) packing |
| CN103290207A (en) * | 2013-06-14 | 2013-09-11 | 中南大学 | Comprehensive recycling method of iron and aluminum from red mud |
| CN104046771A (en) * | 2014-06-04 | 2014-09-17 | 吉林吉恩镍业股份有限公司 | Method for producing high-strength and high-flexibility heatproof mineral wool and iron by using red mud |
| CN104928429A (en) * | 2015-07-02 | 2015-09-23 | 中冶东方工程技术有限公司 | Metallization reduction utilization method of paigeite |
| CN105002362A (en) * | 2015-08-04 | 2015-10-28 | 江苏省冶金设计院有限公司 | Comprehensive treatment method for red mud and boron mud |
| CN105331837A (en) * | 2015-12-01 | 2016-02-17 | 中南大学 | Method for gathering scandium from red mud |
-
2016
- 2016-11-23 CN CN201611038639.4A patent/CN106623356B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB990403A (en) * | 1961-10-24 | 1965-04-28 | Montedison Spa | Process of treating red slurries |
| CN101413054A (en) * | 2008-12-09 | 2009-04-22 | 中南大学 | Technology for comprehensively utilizing high ferro aluminiferous material |
| CN101723713A (en) * | 2009-12-10 | 2010-06-09 | 湖南华菱湘潭钢铁有限公司 | Overall treatment method of steel works sintering dust |
| CN103131214A (en) * | 2013-02-05 | 2013-06-05 | 茌平县金德赤泥资源再利用有限公司 | Technological method of using alumina byproduct red mud for producing polyvinyl chloride (PVC) packing |
| CN103290207A (en) * | 2013-06-14 | 2013-09-11 | 中南大学 | Comprehensive recycling method of iron and aluminum from red mud |
| CN104046771A (en) * | 2014-06-04 | 2014-09-17 | 吉林吉恩镍业股份有限公司 | Method for producing high-strength and high-flexibility heatproof mineral wool and iron by using red mud |
| CN104928429A (en) * | 2015-07-02 | 2015-09-23 | 中冶东方工程技术有限公司 | Metallization reduction utilization method of paigeite |
| CN105002362A (en) * | 2015-08-04 | 2015-10-28 | 江苏省冶金设计院有限公司 | Comprehensive treatment method for red mud and boron mud |
| CN105331837A (en) * | 2015-12-01 | 2016-02-17 | 中南大学 | Method for gathering scandium from red mud |
Non-Patent Citations (1)
| Title |
|---|
| 刘万超: "拜耳法赤泥中铁的提取及残渣制备建材实验研究", 《工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10975284B2 (en) | 2018-02-06 | 2021-04-13 | Southwest Petroleum University | Well cementation working solution prepared from red mud, slag and waste drilling fluids |
| CN110205430A (en) * | 2019-07-09 | 2019-09-06 | 广东工业大学 | A method of strengthening reduction roasting and recycles red mud iron component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106623356B (en) | 2019-05-03 |
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