CN112058219A - Preparation method and application of blast furnace ferronickel slag-based zeolite molecular sieve - Google Patents
Preparation method and application of blast furnace ferronickel slag-based zeolite molecular sieve Download PDFInfo
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- 239000002893 slag Substances 0.000 title claims abstract description 69
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 49
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000010457 zeolite Substances 0.000 title claims abstract description 49
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 47
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910000863 Ferronickel Inorganic materials 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 72
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229960000907 methylthioninium chloride Drugs 0.000 claims abstract description 39
- 238000001179 sorption measurement Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000032683 aging Effects 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000000967 suction filtration Methods 0.000 claims abstract description 3
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 12
- 239000000047 product Substances 0.000 description 8
- 239000003463 adsorbent Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000001045 blue dye Substances 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 206010038687 Respiratory distress Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- MCPLVIGCWWTHFH-UHFFFAOYSA-L methyl blue Chemical compound [Na+].[Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[NH+]C=2C=CC(=CC=2)S([O-])(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S([O-])(=O)=O)=CC=2)C=C1 MCPLVIGCWWTHFH-UHFFFAOYSA-L 0.000 description 1
- 239000002048 multi walled nanotube Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a preparation method of a blast furnace ferronickel slag-based zeolite molecular sieve, which comprises the steps of drying and grinding blast furnace ferronickel slag, adding sodium hydroxide, and roasting at 600-700 ℃ for 2 h; adding sodium hydroxide and deionized water into the roasted product, stirring for 30-60 min at room temperature, and aging overnight; transferring the mixture into a high-pressure reaction kettle, heating for 24 hours at 100-150 ℃, washing the product, performing suction filtration, drying and grinding to obtain the blast furnace ferronickel slag-based zeolite molecular sieve; the blast furnace ferronickel slag-based zeolite molecular sieve prepared by the invention is applied to adsorbing methylene blue, and experimental results show that the material has better adsorption performance on organic dye methylene blue.
Description
Technical Field
The invention belongs to the technical field of organic dye wastewater treatment, and particularly relates to a preparation method of a blast furnace ferronickel slag-based zeolite molecular sieve and application of the zeolite molecular sieve in methylene blue adsorption.
Background
The methylene blue dye required by the textile industry is one of the most widely used water pollutants, which causes many health problems, such as abdominal disease, respiratory distress, skin allergies, and blindness. In addition, methylene blue dye adversely affects the environment and disrupts the balance of the ecosystem, which hinders photosynthesis by aquatic organisms, thus threatening the ecological environment.
Today, there are a variety of techniques for removing methylene blue dye, such as ultrafiltration, ozonation, reverse osmosis, ion exchange, chemical oxidation, photodegradation, solvent extraction, electrochemical degradation, and adsorption. Wherein the adsorption method is simple, easy, effective and economical. The commonly used adsorbent comprises zeolite, activated carbon, multi-wall carbon nano-tubes and polymers, and the electromotive potential of the zeolite is negative, so that the adsorbent has a good adsorption effect on the cationic dye methylene blue.
The blast furnace ferronickel slag is metal slag generated in blast furnace production operation and contains rich SiO2And Al2O3The zeolite molecular sieve prepared by the method not only provides an efficient adsorbent preparation method, but also solves the problem that a large amount of blast furnace ferronickel slag is stacked to occupy land resources, and provides a new idea for resource utilization of the blast furnace ferronickel slag.
Disclosure of Invention
The invention provides a preparation method of a blast furnace ferronickel slag-based zeolite molecular sieve, which not only solves the pollution of methyl blue in wastewater, but also solves the problem that a large amount of blast furnace ferronickel slag is stacked to occupy land resources, and the method comprises the following steps:
(1) drying and grinding the blast furnace ferronickel slag, adding sodium hydroxide, and roasting at 600-700 ℃ for 2 h; the mass ratio of the blast furnace nickel-iron slag to the sodium hydroxide is 1: 1.5-2;
(2) adding sodium hydroxide and deionized water into the roasted product obtained in the step (1), stirring at room temperature for 30-60 min, aging overnight, wherein the mass ratio of the roasted product to the sodium hydroxide is 1-3: 1, and the mass volume ratio g: mL of the roasted product to the deionized water is 1: 15-20;
(3) and (3) transferring the mixture obtained in the step (2) into a high-pressure reaction kettle, heating for 24 hours at 100-150 ℃, washing the product, performing suction filtration, drying and grinding to obtain the blast furnace ferronickel slag-based zeolite molecular sieve.
The blast furnace ferronickel slag mainly comprises the following components: SiO 2226～31wt%、Al2O319-35 wt%, 10-14 wt% of MgO, and 19-30 wt% of CaO; the blast furnace ferronickel slag is waste slag powder which is ground and then sieved by a 80-mesh sieve, and the balance of the sieve is less than 5%.
The invention also aims to apply the blast furnace ferronickel slag-based zeolite molecular sieve prepared by the method to a methylene blue adsorbent.
The technical scheme of the invention has the advantages and the technical effects that:
the invention adopts blast furnace nickel-iron slag as a main raw material, is matched with sodium hydroxide, adopts a hydrothermal method to prepare the zeolite molecular sieve, and uses the material to adsorb methylene blue; the material has a remarkable effect of adsorbing methylene blue, can effectively recycle industrial waste residues, improves the comprehensive utilization rate of blast furnace nickel-iron slag, and provides a new idea for treating methylene blue polluted water.
Detailed Description
In order to better understand the contents of the present invention, the present invention will be further described in detail by the following specific examples, but the scope of the present invention is not limited to the contents, and the blast furnace ferronickel slag used in the examples mainly comprises the following components: SiO 2226～31wt%、Al2O319～35wt%、MgO10～14wt%、CaO19～30wt%
Example 1: preparation method of blast furnace nickel-iron slag based zeolite molecular sieve
And (2) uniformly mixing 58.8g of dry blast furnace ferronickel slag (which is ground and sieved by a 80-mesh sieve, and the sieve residue is less than 5%) with 100g of sodium hydroxide, placing the mixture into a muffle furnace to be roasted for 2h at 650 ℃, weighing 10g of roasted solid and 5g of sodium hydroxide to be mixed, adding 200mL of deionized water, stirring for 1h at room temperature, aging and staying overnight, transferring the mixture into a high-pressure reaction kettle, heating for 24h at 100 ℃, washing, filtering, drying and grinding the mixture to obtain the blast furnace ferronickel slag-based zeolite molecular sieve.
Example 2: preparation method of blast furnace nickel-iron slag-based zeolite molecular sieve
Uniformly mixing dry blast furnace nickel-iron slag (which is ground and sieved by a 80-mesh sieve, and the balance of the sieve is less than 5%) with sodium hydroxide, wherein the mass ratio of the blast furnace nickel-iron slag to the sodium hydroxide is 1:2, placing the blast furnace nickel-iron slag and the sodium hydroxide into a muffle furnace to roast for 2 hours at 700 ℃, weighing roasted solid, mixing the solid with the sodium hydroxide, and adding deionized water, wherein the mass ratio of the roasted product to the sodium hydroxide is 1:1, and the mass-volume ratio g: mL of the roasted product to the deionized water is 1: 15; stirring for 1h at room temperature, aging and standing overnight, transferring the mixture into a high-pressure reaction kettle, heating for 24h at 120 ℃, washing, filtering, drying and grinding the mixture to obtain the blast furnace ferronickel slag-based zeolite molecular sieve.
Example 3: preparation method of blast furnace nickel-iron slag-based zeolite molecular sieve
Uniformly mixing dry blast furnace nickel-iron slag (which is ground and sieved by a 80-mesh sieve, and the balance of the sieve is less than 5%) with sodium hydroxide, wherein the mass ratio of the blast furnace nickel-iron slag to the sodium hydroxide is 1:1.5, placing the blast furnace nickel-iron slag and the sodium hydroxide into a muffle furnace to roast for 2 hours at 600 ℃, weighing roasted solid, mixing the solid with the sodium hydroxide, and adding deionized water, wherein the mass ratio of the roasted product to the sodium hydroxide is 3:1, and the mass-volume ratio g: mL of the roasted product to the deionized water is 1: 18; stirring for 1h at room temperature, aging and standing overnight, transferring the mixture into a high-pressure reaction kettle, heating for 24h at 150 ℃, washing, filtering, drying and grinding the mixture to obtain the blast furnace ferronickel slag-based zeolite molecular sieve.
The blast furnace ferronickel slag-based zeolite molecular sieve prepared by the embodiment is used for methylene blue, and the influence of the concentration of the methylene blue on the adsorption effect is detected
The initial concentration of the liquid containing methylene blue to be treated is respectively 200mg/L, 250mg/L, 300mg/L, 350mg/L, 400mg/L and 1000mg/L, each concentration is 30mL, then 0.1g of blast furnace ferronickel slag-based zeolite molecular sieve is added into each detection sample, stirring treatment is carried out in a horizontal constant temperature oscillator, the parameters of the horizontal constant temperature oscillator are set to be 25 ℃ and 120r/min, standing is carried out for 30min after oscillation is carried out for 240min, supernatant liquid is taken, the content of the methylene blue in the solution is measured, and the adsorption rate and the adsorption capacity of the blast furnace ferronickel slag-based zeolite molecular sieve to the methylene blue in the solution are calculated, and the results are shown in Table 1; as can be seen from Table 1, the effect of the blast furnace nickel-iron slag-based zeolite molecular sieve on adsorbing methylene blue in the solution is different under different initial concentration conditions; along with the increase of the initial concentration, the effect of the blast furnace ferronickel slag-based zeolite molecular sieve on adsorbing methylene blue in the solution is in a decreasing trend, and when the initial concentration reaches 1000mg/L, the adsorption rate and the adsorption capacity are still higher, which shows that the blast furnace ferronickel slag-based zeolite molecular sieve has a good adsorption effect on methylene blue wastewater solution.
TABLE 1 adsorption rate and adsorption capacity of blast furnace ferronickel slag-based zeolite molecular sieve for methylene blue of different concentrations
Influence of different pH values on adsorption of methylene blue by blast furnace nickel-iron slag-based zeolite molecular sieve
Adjusting initial pH values of the solution to be treated to be 2, 3, 4, 5, 6, 7, 8, 9 and 10 by using 1mol/L hydrochloric acid solution and 1mol/L sodium hydroxide solution, respectively, adjusting the initial pH values to be 2, 3, 4, 5, 6, 7, 8, 9 and 10, respectively adding 0.1g of blast furnace ferronickel slag-based zeolite molecular sieve, setting parameters of a horizontal constant temperature oscillator to be 25 ℃ and 120r/min, standing for 30min after oscillation for 240min, absorbing supernatant by using an injector, measuring the content of methylene blue in the solution, and calculating the adsorption rate and the adsorption capacity of the blast furnace slag-based zeolite molecular sieve to the methylene blue in the ferronickel solution, wherein the results are shown in Table 2; as can be seen from Table 2, the effect of adsorbing methylene blue in the solution by the blast furnace nickel-iron slag-based zeolite molecular sieve is different under different pH conditions; along with the increase of the pH value, the effect of the blast furnace nickel-iron slag-based zeolite molecular sieve on adsorbing methylene blue in the solution is increased; when the pH value is 6, the adsorption rate of the methylene blue in the blast furnace ferronickel slag-based zeolite molecular sieve adsorption solution can reach 87.5 percent, and the change of the adsorption rate and the adsorption capacity is not large afterwards.
TABLE 2 effect of adsorption of methylene blue in blast furnace ferronickel slag-based zeolite molecular sieves under different pH conditions
Influence of different adsorption temperatures on adsorption of methylene blue by blast furnace ferronickel slag-based zeolite molecular sieve
Adding 0.1g of blast furnace ferronickel slag-based zeolite molecular sieve into a liquid to be treated, setting the temperature of a horizontal constant-temperature oscillator to be 25 ℃, 35 ℃ and 45 ℃, oscillating for 240min at 120r/min, standing for 30min, absorbing supernatant by using an injector, determining the content of methylene blue in the solution, and calculating the adsorption rate and the adsorption capacity of the blast furnace ferronickel slag-based zeolite molecular sieve on the methylene blue in the solution; the results are shown in Table 3; as can be seen from table 3, the adsorption amount and removal rate of methylene blue were reduced at elevated temperatures, and therefore, when methylene blue was adsorbed by the blast furnace nickel-iron slag-based zeolite molecular sieve, a good adsorption effect was obtained at room temperature, and it was not necessary to raise the temperature and reduce the energy consumption.
TABLE 3 effect of adsorption of methylene blue in blast furnace ferronickel slag-based zeolite molecular sieves at different adsorption temperatures
In conclusion, when the blast furnace ferronickel slag-based zeolite molecular sieve adsorbs heavy methylene blue in the solution, the adsorption pH is recommended to be 6 respectively, and the adsorption temperature is recommended to be 25 ℃ respectively, so that the adsorption rate and the adsorption capacity of the methylene blue can be maximized.
In the above embodiment, when the furnace ferronickel slag-based zeolite molecular sieve adsorbs methylene blue in the solution, the adsorption rate R and the adsorption capacity Q are calculated by the following formulas:
Q=（Ct-C0）×V/m
in the formula: c0And CtRespectively representing the initial concentration of the methylene blue solution and the residual concentration of the methylene blue solution at the t moment, wherein mg/L, V is the volume of the adsorption amount, and m is the dosage of the adsorbent.
It should be emphasized that the above-described embodiments are merely examples for clearly illustrating the present invention and are not to be considered as a complete limitation of the embodiments. Other variants will be apparent to those skilled in the art on the basis of the foregoing description, and it is not necessary to exemplify all the embodiments herein, but rather obvious variations are contemplated which are within the scope of the invention.
Claims (6)
1. A preparation method of a blast furnace ferronickel slag-based zeolite molecular sieve is characterized by comprising the following steps:
(1) drying and grinding the blast furnace ferronickel slag, adding sodium hydroxide, and roasting at 600-700 ℃ for 2 h;
(2) adding sodium hydroxide and deionized water into the roasted product in the step (1), stirring for 30-60 min at room temperature, and aging overnight;
(3) and (3) transferring the mixture obtained in the step (2) into a high-pressure reaction kettle, heating for 24 hours at 100-150 ℃, washing the product, performing suction filtration, drying and grinding to obtain the blast furnace ferronickel slag-based zeolite molecular sieve.
2. The preparation method of the blast furnace ferronickel slag-based zeolite molecular sieve according to claim 1, characterized in that: the mass ratio of the blast furnace nickel-iron slag to the sodium hydroxide is 1: 1.5-2.
3. The preparation method of the blast furnace ferronickel slag-based zeolite molecular sieve according to claim 1, characterized in that: the mass ratio of the roasted product to the sodium hydroxide is 1-3: 1.
4. The preparation method of the blast furnace ferronickel slag-based zeolite molecular sieve according to claim 1, characterized in that: the blast furnace ferronickel slag is waste slag powder which is ground and then sieved by a 80-mesh sieve, and the balance of the sieve is less than 5%.
5. The preparation method of the blast furnace ferronickel slag-based zeolite molecular sieve according to claim 1, characterized in that: the mass volume ratio g: mL of the roasted product to the deionized water is 1: 15-20.
6. The use of the blast furnace nickel iron slag-based zeolite molecular sieve prepared by the method for preparing the blast furnace nickel iron slag-based zeolite molecular sieve according to any one of claims 1 to 5 in the adsorption of methylene blue.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231007A (en) * | 2021-06-07 | 2021-08-10 | 北京科技大学 | Method for preparing heavy metal adsorbent by using blast furnace slag and application |
| CN113461026A (en) * | 2021-07-09 | 2021-10-01 | 盐城工学院 | Preparation method and application of zeolite type phosphorus removal agent for high-salt waste liquid |
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| CN113461026B (en) * | 2021-07-09 | 2023-11-10 | 盐城工学院 | Preparation method and application of zeolite type dephosphorizing agent for high-salt waste liquid |
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Application publication date: 20201211 |