CN1994881A - Method for preparing polysilicate aluminium molten iron processing agent using bauxite gangue - Google Patents
Method for preparing polysilicate aluminium molten iron processing agent using bauxite gangue Download PDFInfo
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- CN1994881A CN1994881A CN 200610156328 CN200610156328A CN1994881A CN 1994881 A CN1994881 A CN 1994881A CN 200610156328 CN200610156328 CN 200610156328 CN 200610156328 A CN200610156328 A CN 200610156328A CN 1994881 A CN1994881 A CN 1994881A
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- temperature
- aluminium
- bauxite gangue
- molten iron
- processing agent
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- 238000000034 method Methods 0.000 title claims abstract description 56
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 29
- 239000004411 aluminium Substances 0.000 title claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 20
- 238000012545 processing Methods 0.000 title claims description 25
- 239000003513 alkali Substances 0.000 claims abstract description 18
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 27
- 238000006116 polymerization reaction Methods 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000000605 extraction Methods 0.000 claims description 18
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000005995 Aluminium silicate Substances 0.000 claims description 11
- 235000012211 aluminium silicate Nutrition 0.000 claims description 11
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims description 11
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 11
- 238000004090 dissolution Methods 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 11
- 235000019353 potassium silicate Nutrition 0.000 claims description 10
- 235000006408 oxalic acid Nutrition 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 230000004927 fusion Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 239000002253 acid Substances 0.000 abstract description 13
- 239000012266 salt solution Substances 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 3
- 159000000013 aluminium salts Chemical class 0.000 abstract description 2
- 229910000329 aluminium sulfate Inorganic materials 0.000 abstract description 2
- 230000000379 polymerizing effect Effects 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 9
- 239000002351 wastewater Substances 0.000 description 7
- 239000012267 brine Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000002386 leaching Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 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
- 239000000701 coagulant Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 2
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000013066 combination product Substances 0.000 description 1
- 229940127555 combination product Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- 239000003295 industrial effluent Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a making method of bauxite tailing disposing and aluminium polysilicate molten iron disposing agent, which comprises the following steps: adopting bauxite tailings as raw material; sintering; immersing in the acid; dissolving in the alkali; polymerizing polysilicate acid; adding aluminium salt solution in the polysilicate acid to obtain the product.
Description
Technical field
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent relates to that a kind of bauxite gangue is handled and the preparation method of polysilicate aluminium molten iron processing agent,
Background technology
China's bauxite overwhelming majority belongs to diaspore (accounting for more than 98%), and such ore has the aluminium height, the silicon height, and alumina silica ratio is lower, characteristics such as thin, the mutual embedding cloth complexity of ore grain size number.Mostly adopt explained hereafter aluminum oxide such as mixed combining method, sintering process, its long flow path, energy consumption height, production cost are higher.Therefore bauxite adopts ore dressing and desiliconizing to improve the alumina silica ratio of ore, becomes the trend that aluminum oxide industry develops, and has produced siliceous abundant mine tailings such as being rich in kaolinite, illite, agalmatolite but be accompanied by.How rationally to utilize mine tailing to become a very urgent problem.
In recent years, along with the Chinese society rapid economy development, city and the rapid sustainable growth of process water demand.For the discharging that makes industrial pollution source must reach standard, strengthen water surrounding and dye comprehensive regulation dynamics, need a large amount of efficient water-purifying agents.
At present, China's flocculant product mostly is raw product, kind is single, can not satisfy the demand that China city and process water are handled, especially to the cities and towns and the process water of sustainable growth from now on, and the demand of town sewage and the processing of industrial effluent reusing degree, breach is bigger, has the huge applications market outlook.
Poly-silicic acid Series Water Treatment Chemicals is a class novel inorganic high-molecular coagulant adopting, is the poly-silicic acid that grows up on the basis of activated silicic acid (promptly poly-silicic acid) and aluminum salt and the combination product of aluminium salt, and it has electric neutrality and adsorption bridging effect simultaneously.Because such coagulating agent has that coagulation effect is good, characteristics such as residual aluminium amount is low in the water behind the low price, processing, has caused the very big concern of field of water treatment, has become a focus of domestic and international inorganic coagulant research.
Summary of the invention
The objective of the invention is the deficiency at above-mentioned prior art existence, a kind of economic benefit, environmental benefit and social benefit are provided, and the good bauxite gangue that utilizes prepares the method for polysilicate aluminium molten iron processing agent.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent, it is characterized in that it being that the employing bauxite gangue is a raw material, through high-temperature roasting, acidleach, molten, the poly-silicic acid technological process of polymerization of alkali, the aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid, the preparation polysilicate aluminium molten iron processing agent.
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent of the present invention is characterized in that roasting process is under 600 ℃ of-700 ℃ of temperature, with bauxite gangue roasting 2h-5h.
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent of the present invention, the concentration that it is characterized in that the oxalic acid of material acidleach process after its roasting is greater than 30g/L, and extraction temperature is 70 ℃-85 ℃, and extraction time is 2h-6h.
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent of the present invention, the naoh concentration that it is characterized in that the molten process of its alkali is 30g/L-50g/L, and temperature is 150 ℃-200 ℃, and dissolution time is 2h-6h.
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent of the present invention is characterized in that its polymerization process is diluted to 3%-6% for the water glass that the molten process of alkali is produced, and control pH is 3-5, and polymerization time is 2h-4h, and polymerization temperature is a room temperature.
Method of the present invention, mine tailing leaches at 600 ℃ of-700 ℃ of following roasting 2h-5h, surveys its Al
20
3And SiO
2Solubility rate, test-results shows: if temperature is too low or too high, aluminium silicon is difficult to leach, only the aluminium silicon leaching yield maximum that is 600 ℃ of-700 ℃ of following roastings.Mine tailing after roasting, aluminium exists with the activated alumina form, and concentration of oxalic acid soaks that the effect of aluminium is better during greater than 30g/L, and extraction temperature is 70 ℃-85 ℃, and extraction temperature is too high or too low, and it is all bad to soak the aluminium effect.Extraction time is 2h-6h.Mixture after the acidleach is filtered, and the main component of filter residue is SiO
2, these SiO
2Activity very big, be easy to sodium hydroxide water generation reaction glass, leach again after filter residue and sodium hydroxide (30g/L-50g/L) are made into slip, extraction temperature is 150 ℃-200 ℃, dissolution time is 2h-6h.After the water glass dilution that produces in the molten process of alkali, be about 4 with sulfuric acid acidation to pH value then, dilution once more simultaneously, then make silicate solution at room temperature leave standstill 2～4h to carry out polyreaction, experimental result shows, concentration of sodium silicate is too high, easily becomes gel to separate out in acidization, and is unfavorable to polymerization; The pH value is too big, and polymerization temperature is too high. and the polyreaction progress is too fast. and at this moment formed poly-silicic acid molecular weight is little.Having influence on the water treatment effect of poly-silicic acid water treatment reagent. the suitable processing condition of determining polymerization process at last are: concentration of sodium silicate is 3%-6%, and the pH value is 3-5, and polymerization temperature is a room temperature.At last the aluminum salt solution that produces in the sour molten process is joined in the poly-silicic acid, add-on can change according to processing wastewater property difference.
Method of the present invention, according to bauxite gangue aluminium silicone content is main characteristics, the poly-silicic acid water conditioners of prepared such as, polymerization molten through high-temperature roasting, acidleach, alkali, and be used for the processing of trade effluent, for the deep processing processing of mine tailing and valid approach of improvement searching of trade effluent, to strive for obtaining jointly of economic benefit, environmental benefit and social benefit.
Embodiment
A kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent, be that the employing bauxite gangue is a raw material, through high-temperature roasting, acidleach, molten, the poly-silicic acid technological process of polymerization of alkali, the aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid, the preparation polysilicate aluminium molten iron processing agent.Roasting process is under 600 ℃ of-700 ℃ of temperature, with bauxite gangue roasting 2h-5h.The concentration of the oxalic acid of material acidleach process is greater than 30g/L after the roasting, and extraction temperature is 70 ℃-85 ℃, and extraction time is 2h-6h.The naoh concentration of the molten process of alkali is 30g/L-50g/L, and temperature is 150 ℃-200 ℃, and dissolution time is 2h-6h.Polymerization process is diluted to 3%-6% for the water glass that the molten process of alkali is produced, and control pH is 3-5, and polymerization time is 2h-4h, and polymerization temperature is a room temperature; The aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid agent of preparation aluminium silicate polymer brine treatment.
A kind ofly prepare the method for polysilicate aluminium molten iron reagent treatment, relate to a kind of bauxite gangue treatment process from bauxite gangue.It is characterized in that prepared polysilicate aluminium molten iron processing agents such as, polymerization molten to mine tailing high-temperature roasting, acidleach, alkali.The maturing temperature of mine tailing is 600 ℃-700 ℃, and roasting time is 2h-5h.The concentration of oxalic acid is greater than 30g/L during acidleach, and extraction temperature is 70 ℃-85 ℃, and extraction time is 2h-6h.Concentration sodium hydroxide was 30g/L-50g/L when alkali was molten, and temperature is 150 ℃-200 ℃, and dissolution time is 2h-6h.Polymerizing condition is as follows: the water glass that the molten process of alkali is produced is diluted to 3%-6%, and transferring pH with sulfuric acid is 3-5, and polymerization time is 2h-4h, and polymerization temperature is a room temperature, and the molecular-weight average of poly-silicic acid is 200,000-400,000 dalton.The aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid agent of preparation aluminium silicate polymer brine treatment.
Embodiment 1
The maturing temperature of mine tailing is 600 ℃, and roasting time is 2h.With the mine tailing after the oxalic acid leaching roasting of 30g/L, extraction temperature is 70 ℃, and extraction time is 2h.Filter residue after acid the is molten dissolution of sodium hydroxide of 30g/L, the stripping temperature is 150 ℃, dissolution time is 2h.The water glass that the molten process of alkali is produced is diluted to 3%, and transferring pH with sulfuric acid is 3, and polymerization time is 2h, and polymerization temperature is a room temperature.The aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid agent of preparation aluminium silicate polymer brine treatment.The dust waste water of converter (waste water SS is 2500mg/L) that the aluminium silicate polymer water conditioner for preparing under this condition is used for, when dosage was 80mg/L, the SS after the former water treatment reduced to 100mg/L.
Embodiment 2
The maturing temperature of mine tailing is 700 ℃, and roasting time is 5h.With the mine tailing after the oxalic acid leaching roasting of 50g/L, extraction temperature is 85 ℃, and extraction time is 6h.Filter residue after acid the is molten dissolution of sodium hydroxide of 50g/L, the stripping temperature is 200 ℃, dissolution time is 6h.The water glass that the molten process of alkali is produced is diluted to 6%, and transferring pH with sulfuric acid is 5, and polymerization time is 4h, and polymerization temperature is a room temperature.The aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid agent of preparation aluminium silicate polymer brine treatment.The aluminium silicate polymer water conditioner for preparing under this condition is used for dust waste water of converter (waste water SS is 2500mg/L), and when dosage was 80mg/L, the SS after the former water treatment reduced to 90mg/L.
Embodiment 3
The maturing temperature of mine tailing is 650 ℃, and roasting time is 4h.With the mine tailing after the oxalic acid leaching roasting of 40g/L, extraction temperature is 80 ℃, and extraction time is 4h.Filter residue after acid the is molten dissolution of sodium hydroxide of 40g/L, the stripping temperature is 200 ℃, dissolution time is 4h.The water glass that the molten process of alkali is produced is diluted to 5%, and transferring pH with sulfuric acid is 4, and polymerization time is 3h, and polymerization temperature is a room temperature.The aluminum salt solution that obtains in the molten process of acid is joined in the poly-silicic acid agent of preparation aluminium silicate polymer brine treatment.The dust waste water of converter (waste water SS is 2500mg/L) that the aluminium silicate polymer water conditioner for preparing under this condition is used for, when dosage was 80mg/L, the SS after the former water treatment reduced to 80mg/L.
Claims (5)
1. one kind from bauxite gangue preparation aluminium silicate polymer water treatment compositions and methods, relates to a kind of bauxite gangue treatment process.It is characterized in that at mine tailing aluminium silicone content be main characteristics, prepare the aluminium silicate polymer water conditioner through series of process, its treatment process is as follows: mine tailing leaches with oxalic acid through after the high-temperature roasting, and solid-liquid separation obtains containing aluminum solutions and solid slag subsequently; Solid slag carries out forming water glass behind the alkali fusion with sodium hydroxide, and water glass is acidified, form poly-silicic acid after the polymerization, at last the aluminum solutions that contains that obtains in the sour molten process is added in the poly-silicic acid and obtains the aluminium silicate polymer water conditioner.
2. a kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent according to claim 1 is characterized in that roasting process is under 600 ℃ of-700 ℃ of temperature, with bauxite gangue roasting 2h-5h.
3. a kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent according to claim 1, the concentration that it is characterized in that the oxalic acid of material acidleach process after its roasting is greater than 30g/L, and extraction temperature is 70 ℃-85 ℃, and extraction time is 2h-6h.
4. a kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent according to claim 1, the naoh concentration that it is characterized in that the molten process of its alkali is 30g/L-50g/L, and temperature is 150 ℃-200 ℃, and dissolution time is 2h-6h.
5. a kind of method of utilizing bauxite gangue to prepare polysilicate aluminium molten iron processing agent according to claim 1, it is characterized in that its polymerization process is diluted to 3%-6% for the water glass that the molten process of alkali is produced, control pH is 3-5, and polymerization time is 2h-4h, and polymerization temperature is a room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610156328 CN1994881A (en) | 2006-12-29 | 2006-12-29 | Method for preparing polysilicate aluminium molten iron processing agent using bauxite gangue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610156328 CN1994881A (en) | 2006-12-29 | 2006-12-29 | Method for preparing polysilicate aluminium molten iron processing agent using bauxite gangue |
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| Publication Number | Publication Date |
|---|---|
| CN1994881A true CN1994881A (en) | 2007-07-11 |
Family
ID=38250102
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|---|---|---|---|
| CN 200610156328 Pending CN1994881A (en) | 2006-12-29 | 2006-12-29 | Method for preparing polysilicate aluminium molten iron processing agent using bauxite gangue |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830476B (en) * | 2009-03-13 | 2011-12-21 | 抚顺矿业集团有限责任公司 | Method for preparing polymeric ferric aluminum silicate flocculant from waste oil shale slag |
| CN102531328A (en) * | 2012-01-09 | 2012-07-04 | 济南大学 | Composite inorganic polymeric sludge dehydration conditioner prepared from blast-furnace metallurgical slag |
| CN106335981A (en) * | 2015-07-07 | 2017-01-18 | 云南民族大学 | Comprehensive utilization method of nickel slag and red mud |
| CN110342555A (en) * | 2019-08-22 | 2019-10-18 | 湖南绿脉环保科技有限公司 | A method of aluminium oxide is produced containing kaolinic mineral |
| CN112047422A (en) * | 2020-09-16 | 2020-12-08 | 国投信开水环境投资有限公司 | Production process of composite phosphorus removal agent for sewage treatment |
-
2006
- 2006-12-29 CN CN 200610156328 patent/CN1994881A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830476B (en) * | 2009-03-13 | 2011-12-21 | 抚顺矿业集团有限责任公司 | Method for preparing polymeric ferric aluminum silicate flocculant from waste oil shale slag |
| CN102531328A (en) * | 2012-01-09 | 2012-07-04 | 济南大学 | Composite inorganic polymeric sludge dehydration conditioner prepared from blast-furnace metallurgical slag |
| CN106335981A (en) * | 2015-07-07 | 2017-01-18 | 云南民族大学 | Comprehensive utilization method of nickel slag and red mud |
| CN106335981B (en) * | 2015-07-07 | 2019-08-13 | 云南民族大学 | A kind of method of nickel slag and red mud comprehensive utilization |
| CN110342555A (en) * | 2019-08-22 | 2019-10-18 | 湖南绿脉环保科技有限公司 | A method of aluminium oxide is produced containing kaolinic mineral |
| CN112047422A (en) * | 2020-09-16 | 2020-12-08 | 国投信开水环境投资有限公司 | Production process of composite phosphorus removal agent for sewage treatment |
| CN112047422B (en) * | 2020-09-16 | 2022-04-12 | 国投信开水环境投资有限公司 | Production process of composite phosphorus removal agent for sewage treatment |
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