CN101497025A - Method for preparing active carbon-aluminosilicate composite sorbent using oil shale as raw material - Google Patents
Method for preparing active carbon-aluminosilicate composite sorbent using oil shale as raw material Download PDFInfo
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- CN101497025A CN101497025A CNA200910010104XA CN200910010104A CN101497025A CN 101497025 A CN101497025 A CN 101497025A CN A200910010104X A CNA200910010104X A CN A200910010104XA CN 200910010104 A CN200910010104 A CN 200910010104A CN 101497025 A CN101497025 A CN 101497025A
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Abstract
The invention provides a method for preparing an active carbon-aluminosilicate compound adsorbent, which takes oil shale as a raw material, and belongs to the technical field of chemical engineering. The method comprises the following steps that: 1, the oil shale powder is mixed with a mixed solution of inorganic acid and heated up while stirring, when no air bubble is escaped from the mixed material, the heating and the stirring stop, and the mixed material is cooled, filtered, water-washed and dried to obtain the oil shale with acid treatment; and 2, the obtained oil shale with acid treatment is mixed with a solution of NaOH, stirred, stood, heated up under the sealing condition, kept warm for 6 to 18 hours, cooled, filtered, water-washed and dried to obtain the active carbon-aluminosilicate compound adsorbent. In the method, the active carbon-aluminosilicate compound adsorbent is prepared from the oil shale, thereby replacing the high-priced active carbon and solving the problem of the secondary utilization of the oil shale resource; moreover, the novel material is low in manufacturing cost and has wide application prospect.
Description
Technical field
The invention belongs to chemical technology field, particularly a kind of is the method for feedstock production active carbon-aluminosilicate composite sorbent with the oil shale.
Background technology
China's water resource is very short, and along with the growth and the development of industry and agriculture of urban population, also is accompanied by serious day by day drinking water resource environment pollution problem, and the problem of water consumption of China is nervous more.Since the eighties in last century, China's water pollution is in continuous expansion, and China's quantity of wastewater effluent was 3.04 * 10 in 1980
10m
3, wherein trade effluent 2.34 * 10
10m
3, account for 77%; Town domestic sewage is 7.0 * 10
9m
3, account for 23%.National quantity of wastewater effluent was 3.53 * 10 in 1989
10m
3, national quantity of wastewater effluent was 5.84 * 10 in 1997
10m
3, approximately discharge 1.5 * 10 every day
8m
3, wherein industrial wastewater accounts for 80%.Have three in the sewage that is discharged/once more than industrial wastewater and 90% more than the unprocessed water body that directly enters of sanitary sewage, cause the water source, particularly surface water pollution.The pollution of water resource mainly can be divided into effluent containing heavy metal ions and organic wastewater and pollute two types.Wherein effluent containing heavy metal ions is mainly derived from industrial process such as surface treatment, plating, smelting, ore dressing, and organic wastewater is mainly derived from industrial process such as weaving, leather, papermaking and printing.The existence of effluent containing heavy metal ions and organic wastewater, severe contamination environment, how to curb environmental pollution effectively, become the topic that whole world scientist pays close attention to already.Traditional method for treating water has physics method, chemical method and bioanalysis.Physical absorption can be removed a large amount of pollutants in the water fast, and has certain recyclability, is widely used in the water pollution control by people already.Active carbon is the most frequently used adsorbent in numerous adsorbents, have flourishing pore structure and huge specific area, dissolved organic matter in the water there is stronger removal effect, and has certain intensity, so the active carbon adsorption technology is the requisite means of municipal sewage and advanced treatment of industrial waste water, but, and its application and development have been limited owing to traditional active carbon cost height and mainly to organic matter adsorption efficiency height.Molecular sieve is the aluminosilicate that a class has skeleton structure.In its skeleton space structure, open duct and hole have been full of.Molecular sieve has 400～800m
2The huge specific area of/g, and the balance cation on the molecular sieve framework combines not closely with framework, very easily with the aqueous solution in cation generation exchange interaction, thereby molecular sieve has the good adsorption switching performance, can be used for handling the waste water that contains heavy metal.
Oil shale mainly is made of organic and inorganic mineral, and organic matter is the one-tenth oil substances-kerogen (Kerogen) that is insoluble to OOS, is commonly called as " oil is female ", so oil shale claims " oil shale " again.China's oil shale is an II class oil shale, and promptly C/H content is higher, is the fine raw material of preparation active carbon.China's oil shale rock-forming mineral matter is alumino-silicate clay class, is the good raw material of preparation zeolite and molecular sieve.China has abundant oil shale resources, and main concentrating is distributed in Huadian, Jilin, farming peace, Maoming, Guangdong, and areas such as Fushun, the new purposes of exploitation oil shale has important promotion meaning for the exploitation of oil shale; The research of this respect is still less at present.
Summary of the invention
At above technical problem, the objective of the invention is a kind of is the method for feedstock production active carbon-aluminosilicate composite sorbent with the oil shale.
Method of the present invention may further comprise the steps:
1, mineral acid treatment: with granularity is that 0.05～0.5mm oil shale powder is mixed with the inorganic acid mixed liquor, mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 1～50, and preferred mixed proportion is an oil shale powder: inorganic acid mixed liquor=1: 1～20; Add thermal agitation after the mixing, the heating-up temperature scope is 30～300 ℃, and preferred range is 100～200 ℃, and mixing speed is 100～300rpm, has bubble to overflow in the heating process; When not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped to heat and stirring, and was cooled to room temperature, and it is 5～7 that filtered water is washed till filtrate pH value, and the dry moisture of removing obtains the acid treatment oil shale.Contain activated carbon constituents in this acid treatment oil shale.
Wherein the inorganic acid mixed solution is that 98wt% nitric acid and concentration are 98wt% sulfuric acid mixed preparing by concentration, and the ratio of nitric acid and sulfuric acid is nitric acid by volume: sulfuric acid=1: 1～100, preferred proportion are nitric acid: sulfuric acid=1: 5～20.
The preparation method of oil shale powder is: conventional oil shale is selected the part that granularity is 0.5～0.05mm after the physics fragmentation.
2, priming reaction: the acid treatment oil shale that obtains is mixed with NaOH solution, and mixed proportion adds 1～10mLNaOH solution by every g acid treatment oil shale, and preferred mixed proportion is to add 1～5mLNaOH solution in every g acid treatment oil shale; Mixture is stirred 0.5～10h, and preferred mixing time is 1～8h, and mixing speed is 100～300rpm; Leave standstill 8～16h after the stirring; Be heated to 100～120 ℃ after leaving standstill in confined conditions, insulation 6～18h finishes priming reaction.Reaction is cooled to room temperature after finishing, and it is 7～9 that filtered water is washed till filtrate pH value, and the dry moisture of removing obtains active carbon-aluminosilicate composite sorbent.
Wherein the concentration of NaOH solution is 0.1～20mol/L, and preferred concentration is 1～10mol/L.
Adopt the active carbon-aluminosilicate composite sorbent of method preparation of the present invention to carry out adsorption test: the active carbon-aluminosilicate composite sorbent of preparation is mixed with phenol solution and Cr (VI) solution respectively, and adsorbent Pyrogentisinic Acid solution of the present invention and Cr (VI) have higher adsorption capacity.Because the present invention's preparation is inorganic and organic compound adsorbent, can make full use of not only that organic matter prepares active carbon in the oil shale, also can make the inorganic matter in the oil shale be converted into the aluminosilicate molecular sieves adsorbent, both improve the intensity of acticarbon, also improved the degree of utilizing of oil shale simultaneously.
In sum, utilize oil shale to prepare active carbon-alumino-silicate adsorbent, not only substituted the higher active carbon of price, the secondary that has also solved oil shale resources utilizes problem, when being used for advanced treating and containing organic effluent containing heavy metal ions, the comprehensive adsorption function of zeolite and active carbon; This new material cheap for manufacturing cost has a extensive future.
Description of drawings
Fig. 1 is the active carbon-aluminosilicate composite sorbent infrared spectrogram in the embodiment of the invention 2.
Fig. 2 is the active carbon-aluminosilicate composite sorbent crystalline phase composition diagram in the embodiment of the invention 2.
The specific embodiment
The oil shale that adopts in the embodiment of the invention is a Fushun oil shale, and its main component is by weight percentage for containing organic matter 22.16%, SiO
248.14%, Al
2O
315.02%, Fe
2O
36.09%, Na
2O 0.694%, K
2O 0.936%, and MgO 0.809%, and CaO 0.577%.
The nitric acid that adopts in the embodiment of the invention, sulfuric acid and NaOH are general industry level product.
It below is the preferred embodiment of the present invention.
Adopt pulverizer to pulverize in oil shale, use the grinding attachment ore grinding then, the part that filters out granularity then and be 0.05～0.5mm is as oil shale powder.
Oil shale powder is mixed with the inorganic acid mixed liquor, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 1, wherein the inorganic acid mixed liquor is 98wt%H by 180mL concentration
2SO
4With 20mL concentration be 98wt%HNO
3Mixed preparing; With mixed material heating and stirring, heating-up temperature is 50 ℃, and mixing speed is 300rpm, when not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped heating and stirring, naturally cool to room temperature, it is 7 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content is less than 1wt%, obtain the acid treatment oil shale, be stored in the sealing bag standby.
The acid treatment oil shale of preparation is mixed with NaOH solution, and mixed proportion adds 2mL NaOH solution by every g acid treatment oil shale, and wherein the NaOH solution concentration is 4mol/L; Stir 5h, mixing speed is 150rpm, and stirring is left standstill 12h after finishing.Mixture is placed there-necked flask, and the electricity consumption heating jacket is heated to 120 ℃ in confined conditions, insulation 8h.Insulation naturally cools to room temperature after finishing, and it is 7 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content obtains active carbon-aluminosilicate composite sorbent less than 1wt%, is stored in the sealing bag standby.
Adopt the X-ray fluorescence spectra analyzer that this active carbon-aluminosilicate composite sorbent is carried out elementary analysis, its main chemical compositions is SiO by weight percentage
264.4%, Al
2O
38.46%, Fe
2O
32.98%, Na
2O 1.34%, CO
25.20%.
Adopt this active carbon-aluminosilicate composite sorbent to carry out adsorption test: get 0.05g compound adsorbent sample and place conical flask, add the 25mL phenol solution, phenol solution concentration is 200mg/L; With conical flask with rubber stopper seal after, place the oscillator 4h that vibrates, take out conical flask, leave standstill filtration, the adsorption capacity that calculates the compound adsorbent Pyrogentisinic Acid is 30.0mg/g.It is 39.4mg/g to the adsorption rate of Cr (VI) that employing records this compound adsorbent with quadrat method.
Embodiment 2
The preparation method of oil shale powder is with embodiment 1.
Oil shale powder is mixed with the inorganic acid mixed liquor, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 5, wherein the inorganic acid mixed liquor is 98wt%H by 200mL concentration
2SO
4With 40mL concentration be 98wt%HNO
3Mixed preparing; With mixed material heating and stirring, heating-up temperature is 120 ℃, and mixing speed is 260rpm, when not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped heating and stirring, naturally cool to room temperature, it is 6 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content is less than 1wt%, obtain the acid treatment oil shale, be stored in the sealing bag standby.
The acid treatment oil shale of preparation is mixed with NaOH solution, and mixed proportion adds 1mLNaOH solution by every g acid treatment oil shale, and wherein the NaOH solution concentration is 8mol/L; Stir 1h, mixing speed is 300rpm, and stirring is left standstill 10h after finishing.Mixture is placed there-necked flask, and the electricity consumption heating jacket is heated to 110 ℃ in confined conditions, insulation 15h.Insulation naturally cools to room temperature after finishing, and it is 8 that filtered water is washed till filtrate pH value, and dry 14h removes moisture under 110 ± 5 ℃ temperature conditions, and water content obtains active carbon-aluminosilicate composite sorbent less than 1wt%, is stored in the sealing bag standby.
Adopt Nicole 380 type Fourier transformation infrared spectrometers that this active carbon-alumino-silicate is carried out chemical constitution and detect, testing result as shown in Figure 1, as seen from the figure, the active carbon-alumino-silicate for preparing under the condition of normal pressure exists 3200～3600cm respectively
-1, 1500～1750cm
-1With 950～1300cm
-1Three main absorption bands.At 3447cm
-1Near a very strong and very wide absorption band is arranged, this absorption band belongs to the stretching vibration band of hydrone.At 1634cm
-1Absorption band be the bending vibration band of hydrone, show the existence of hydrone in the duct of product.At 1004cm
-1, 625cm
-1The absorption band at place is respectively the asymmetric stretching vibration band of inner T-O (T is Si or the Al) key of tetrahedron in the alumino-silicate and the stretching vibration band of symmetry.At 689cm
-1And 568cm
-1The absorption band at place is respectively the stretching vibration band of alumino-silicate material.
The crystalline phase that adopts PWD 3040/60 type X-ray diffractometer to analyze this active carbon-alumino-silicate sample is formed, and analysis result as shown in Figure 2.As seen from the figure, 2 θ all diffraction maximums in 20 °～90 ° scopes all meet the diffraction absworption peak of alumino-silicate, and wherein 24.2 °, 27.5 °, 34.7 ° is three highest peaks.The main crystalloid of product is hydrated aluminosilicate (SodiumAluminum SilicateHydrate), and its chemical formula is (Na
2O)
1.31Al
2O
3(SiO
2)
2.01(H
2O)
1.65
Adopt this active carbon-aluminosilicate composite sorbent to carry out adsorption test: get 0.05g compound adsorbent sample and place conical flask, add the 25mL phenol solution, phenol solution concentration is 200mg/L; With conical flask with rubber stopper seal after, place oscillator to vibrate 4, take out conical flask, leave standstill filtration, the adsorption capacity that calculates the compound adsorbent Pyrogentisinic Acid is 58.4mg/g.It is 42.3mg/g to the adsorption rate of Cr (VI) that employing records this compound adsorbent with quadrat method.
Embodiment 3
The preparation method of oil shale powder is with embodiment 1.
Oil shale powder is mixed with the inorganic acid mixed liquor, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 10, wherein the inorganic acid mixed liquor is 98wt%H by 190mL concentration
2SO
4With 10mL concentration be 98wt%HNO
3Mixed preparing; With mixed material heating and stirring, heating-up temperature is 140 ℃, and mixing speed is 220rpm, when not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped heating and stirring, naturally cool to room temperature, it is 5 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content is less than 1wt%, obtain the acid treatment oil shale, be stored in the sealing bag standby.
The acid treatment oil shale of preparation is mixed with NaOH solution, and mixed proportion adds 4mLNaOH solution by every g acid treatment oil shale, and wherein the NaOH solution concentration is 15mol/L; Stir 2h, mixing speed is 250rpm, and stirring is left standstill 8h after finishing.Mixture is placed there-necked flask, and the electricity consumption heating jacket is heated to 100 ℃ in confined conditions, insulation 18h.Insulation naturally cools to room temperature after finishing, and it is 9 that filtered water is washed till filtrate pH value, and dry 15h removes moisture under 110 ± 5 ℃ temperature conditions, and water content obtains active carbon-aluminosilicate composite sorbent less than 1wt%, is stored in the sealing bag standby.
Adopt this active carbon-aluminosilicate composite sorbent to carry out adsorption test: get 0.05g compound adsorbent sample and place conical flask, add the 25mL phenol solution, phenol solution concentration is 200mg/L; With conical flask with rubber stopper seal after, place the oscillator 4.h that vibrates, take out conical flask, leave standstill filtration, the adsorption capacity that calculates the compound adsorbent Pyrogentisinic Acid is 50.2mg/g.It is 44.1mg/g to the adsorption rate of Cr (VI) that employing records this compound adsorbent with quadrat method.
Embodiment 4
The preparation method of oil shale powder is with embodiment 1.
Oil shale powder is mixed with the inorganic acid mixed liquor, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 15, wherein the inorganic acid mixed liquor is 98wt%H by 200mL concentration
2SO
4With 20mL concentration be 98wt%HNO
3Mixed preparing; With mixed material heating and stirring, heating-up temperature is 160 ℃, and mixing speed is 180rpm, when not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped heating and stirring, naturally cool to room temperature, it is 7 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content is less than 1wt%, obtain the acid treatment oil shale, be stored in the sealing bag standby.
The acid treatment oil shale of preparation is mixed with NaOH solution, and mixed proportion adds 6mLNaOH solution by every g acid treatment oil shale, and wherein the NaOH solution concentration is 20mol/L; Stir 3h, mixing speed is 200rpm, and stirring is left standstill 12h after finishing.Mixture is placed there-necked flask, and the electricity consumption heating jacket is heated to 120 ℃ in confined conditions, insulation 6h.Insulation naturally cools to room temperature after finishing, and it is 9 that filtered water is washed till filtrate pH value, and dry 13h removes moisture under 110 ± 5 ℃ temperature conditions, and water content obtains active carbon-aluminosilicate composite sorbent less than 1wt%, is stored in the sealing bag standby.
Adopt this active carbon-aluminosilicate composite sorbent to carry out adsorption test: get 0.05g compound adsorbent sample and place conical flask, add the 25mL phenol solution, phenol solution concentration is 200mg/L; With conical flask with rubber stopper seal after, place the oscillator 4.h that vibrates, take out conical flask, leave standstill filtration, the adsorption capacity that calculates the compound adsorbent Pyrogentisinic Acid is 47.5mg/g.It is 41.9mg/g to the adsorption rate of Cr (VI) that employing records this compound adsorbent with quadrat method.
Embodiment 5
The preparation method of oil shale powder is with embodiment 1.
Oil shale powder is mixed with the inorganic acid mixed liquor, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 20, wherein the inorganic acid mixed liquor is 98wt%H by 100mL concentration
2SO
4With 100mL concentration be 98wt%HNO
3Mixed preparing; With mixed material heating and stirring, heating-up temperature is 180 ℃, and mixing speed is 140rpm, when not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped heating and stirring, naturally cool to room temperature, it is 6 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content is less than 1wt%, obtain the acid treatment oil shale, be stored in the sealing bag standby.
The acid treatment oil shale of preparation is mixed with NaOH solution, and mixed proportion adds 8mLNaOH solution by every g acid treatment oil shale, and wherein the NaOH solution concentration is 0.5mol/L; Stir 6h, mixing speed is 120rpm, and stirring is left standstill 16h after finishing.Mixture is placed there-necked flask, and the electricity consumption heating jacket is heated to 110 ℃ in confined conditions, insulation 12h.Insulation naturally cools to room temperature after finishing, and it is 8 that filtered water is washed till filtrate pH value, and dry 12h removes moisture under 110 ± 5 ℃ temperature conditions, and water content obtains active carbon-aluminosilicate composite sorbent less than 1wt%, is stored in the sealing bag standby.
Adopt this active carbon-aluminosilicate composite sorbent to carry out adsorption test: get 0.05g compound adsorbent sample and place conical flask, add the 25mL phenol solution, phenol solution concentration is 200mg/L; With conical flask with rubber stopper seal after, place the oscillator 4.h that vibrates, take out conical flask, leave standstill filtration, the adsorption capacity that calculates the compound adsorbent Pyrogentisinic Acid is 39.6mg/g.It is 38.8mg/g to the adsorption rate of Cr (VI) that employing records this compound adsorbent with quadrat method.
Embodiment 6
The preparation method of oil shale powder is with embodiment 1.
Oil shale powder is mixed with the inorganic acid mixed liquor, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 5, wherein the inorganic acid mixed liquor is 98wt%H by 200mL concentration
2SO
4With 2mL concentration be 98wt%HNO
3Mixed preparing; With mixed material heating and stirring, heating-up temperature is 280 ℃, and mixing speed is 100rpm, when not having bubble to overflow in the mixed material, this moment, temperature of charge began to descend, and began to solidify, and stopped heating and stirring, naturally cool to room temperature, it is 5 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content is less than 1wt%, obtain the acid treatment oil shale, be stored in the sealing bag standby.
The acid treatment oil shale of preparation is mixed with NaOH solution, and mixed proportion adds 10mLNaOH solution by every g acid treatment oil shale, and wherein the NaOH solution concentration is 5mol/L; Stir 8h, mixing speed is 100rpm, and stirring is left standstill 12h after finishing.Mixture is placed there-necked flask, and the electricity consumption heating jacket is heated to 100 ℃ in confined conditions, insulation 6h.Insulation naturally cools to room temperature after finishing, and it is 7 that filtered water is washed till filtrate pH value, and dry 16h removes moisture under 110 ± 5 ℃ temperature conditions, and water content obtains active carbon-aluminosilicate composite sorbent less than 1wt%, is stored in the sealing bag standby.
Adopt this active carbon-aluminosilicate composite sorbent to carry out adsorption test: get 0.05g compound adsorbent sample and place conical flask, add the 25mL phenol solution, phenol solution concentration is 200mg/L; With conical flask with rubber stopper seal after, place the oscillator 4.h that vibrates, take out conical flask, leave standstill filtration, the adsorption capacity that calculates the compound adsorbent Pyrogentisinic Acid is 42.1mg/g.It is 40.8mg/g to the adsorption rate of Cr (VI) that employing records this compound adsorbent with quadrat method.
Claims (4)
1, a kind of is the method for feedstock production active carbon-aluminosilicate composite sorbent with the oil shale, it is characterized in that carrying out according to following steps: (1) is that 0.05～0.5mm oil shale powder is mixed with the inorganic acid mixed liquor with granularity, and mixed proportion is an oil shale powder by the weight ratio of oil shale powder and inorganic acid mixed liquor: inorganic acid mixed liquor=1: 1～50; Add thermal agitation after the mixing, heating-up temperature is 30～300 ℃, and mixing speed is 100～300rpm, when not having bubble to overflow in the mixed material, stop heating and stirring, be cooled to room temperature, it is 5～7 that filtered water is washed till filtrate pH value, and the dry moisture of removing obtains the acid treatment oil shale; (2) the acid treatment oil shale that obtains is mixed with NaOH solution, mixed proportion adds 1～10mLNaOH solution by every g acid treatment oil shale; Mixture is stirred 0.5～10h, and mixing speed is 100～300rpm; Leave standstill 8～16h after the stirring; Be heated to 100～120 ℃ after leaving standstill in confined conditions, insulation 6～18h; Reaction is cooled to room temperature after finishing, and it is 7～9 that filtered water is washed till filtrate pH value, and the dry moisture of removing obtains active carbon-aluminosilicate composite sorbent.
2, according to claim 1 a kind of be the method for feedstock production active carbon-aluminosilicate composite sorbent with the oil shale, it is characterized in that described inorganic acid mixed solution is that 98wt% nitric acid and concentration are 98wt% sulfuric acid mixed preparing by concentration, the ratio of nitric acid and sulfuric acid is nitric acid by volume: sulfuric acid=1: 1～100.
3, according to claim 1 a kind of be the method for feedstock production active carbon-aluminosilicate composite sorbent with the oil shale, the concentration that it is characterized in that described NaOH solution is 0.1～20mol/L.
4, according to claim 1 a kind of be the method for feedstock production active carbon-aluminosilicate composite sorbent with the oil shale, it is characterized in that the preparation method of described oil shale powder is: conventional oil shale is selected the part that granularity is 0.05～0.5mm after the physics fragmentation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824334A (en) * | 2010-04-30 | 2010-09-08 | 黄山学院 | Using method for oil shale ash |
| CN102649047A (en) * | 2012-05-17 | 2012-08-29 | 乐山川博吸附材料有限责任公司 | Preparation method for C-SiO2 adsorbing materials |
| CN105107456A (en) * | 2015-09-27 | 2015-12-02 | 黑龙江科技大学 | Method of using white mud and oil shale ash as raw materials to prepare compound adsorbent |
-
2009
- 2009-01-16 CN CN200910010104XA patent/CN101497025B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824334A (en) * | 2010-04-30 | 2010-09-08 | 黄山学院 | Using method for oil shale ash |
| CN101824334B (en) * | 2010-04-30 | 2012-12-19 | 黄山学院 | Using method for oil shale ash |
| CN102649047A (en) * | 2012-05-17 | 2012-08-29 | 乐山川博吸附材料有限责任公司 | Preparation method for C-SiO2 adsorbing materials |
| CN105107456A (en) * | 2015-09-27 | 2015-12-02 | 黑龙江科技大学 | Method of using white mud and oil shale ash as raw materials to prepare compound adsorbent |
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