CN115301213B - Polyaniline/montmorillonite/charcoal composite adsorption material and preparation method and application thereof - Google Patents
Polyaniline/montmorillonite/charcoal composite adsorption material and preparation method and application thereof Download PDFInfo
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- CN115301213B CN115301213B CN202210941863.3A CN202210941863A CN115301213B CN 115301213 B CN115301213 B CN 115301213B CN 202210941863 A CN202210941863 A CN 202210941863A CN 115301213 B CN115301213 B CN 115301213B
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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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
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- 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
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- 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
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
Abstract
The application relates to an adsorbent material for chemical production, in particular to a polyaniline/montmorillonite/charcoal composite adsorbent material, and a preparation method and application thereof. The polyaniline in the polyaniline/montmorillonite/charcoal composite adsorption material component is obtained by polymerization reaction of aniline, charcoal is aminated charcoal powder, and montmorillonite is montmorillonite modified by silane coupling agent containing amino; the weight ratio of montmorillonite, charcoal and aniline in the raw materials is 0.5-3:1.5-3:1. The application can improve the adsorption performance of the material, realize low cost and good treatment effect on the iodine-containing wastewater.
Description
Technical Field
The application relates to an adsorbent material for chemical production, in particular to a polyaniline/montmorillonite/charcoal composite adsorbent material, and a preparation method and application thereof.
Background
Acetic acid is a widely used chemical raw material, the main preparation mode of acetic acid is a methanol carbonyl method, and the yield of acetic acid produced by using the technology reaches more than 99% of the total world acetic acid yield. In the process of preparing acetic acid by methanol carbonyl, methanol and carbon monoxide are main raw materials for preparing acetic acid, and rhodium/iridium-iodine is used as a catalyst for acetic acid production.
In addition to acetic acid, methanol carbonyl processes produce various impurities (e.g., acetaldehyde, acetone, methyl ethyl ketone, butyraldehyde, crotonaldehyde, 2-ethyl butyraldehyde, and the like, and aldol condensation products thereof). The content of the carbonyl impurities is at most acetaldehyde, the acetaldehyde can react with iodide promoter to generate impurities such as multi-carbon alkyl iodides, and a certain amount of iodine-containing wastewater can be generated in the impurity removal process. Most of the traditional iodine-containing wastewater treatment materials have the defects of high material cost, complex preparation process, poor treatment effect and the like.
Disclosure of Invention
The application aims to solve the technical problem of providing the polyaniline/montmorillonite/charcoal composite adsorption material which can adsorb and treat iodine-containing wastewater, has low treatment cost and good treatment effect, and the preparation method and the application thereof.
The application provides a polyaniline/montmorillonite/charcoal composite adsorption material, wherein polyaniline is obtained by aniline through polymerization reaction, charcoal is amino charcoal powder, and montmorillonite is montmorillonite modified by silane coupling agent containing amino; the weight ratio of montmorillonite, charcoal and aniline in the raw materials is 0.5-3:1.5-3:1.
Preferably, in the preparation process of the aminated charcoal powder, the silane coupling agent containing amino, ammonia water and a solvent are uniformly mixed and reacted for 12-18 hours at 45-50 ℃, and the aminated charcoal powder is obtained through solid-liquid separation.
Preferably, in the preparation process of the aminated charcoal powder, the weight ratio of the charcoal powder to the amino-containing silane coupling agent to the ammonia water is 1:0.3-0.4:0.03-0.07.
Preferably, in the preparation process of the aminated charcoal powder, the solvent is an aqueous ethanol solution with a volume fraction of 85-95%.
Preferably, the grain size of the aminated charcoal powder is less than or equal to 0.5 mu m; preferably, the montmorillonite has a particle size of 0.5 μm or less.
The amino group-containing silane coupling agent may be gamma-aminopropyl triethoxysilane, gamma-aminopropyl trimethoxysilane or the like; the ammonia water is an aqueous solution containing 25 to 28 weight percent of ammonia.
The preparation method of the polyaniline/montmorillonite/charcoal composite adsorption material comprises the following steps: uniformly dispersing montmorillonite and aminated charcoal powder in aniline, then adding protonic acid aqueous solution, uniformly mixing, regulating temperature, dripping initiator, insulating for reaction, and solid-liquid separation to obtain polyaniline/montmorillonite/charcoal composite adsorption material.
Preferably, montmorillonite and aminated charcoal powder are uniformly dispersed in aniline by ultrasonic treatment for 4-6 hours.
Preferably, the temperature is regulated to be between-15 and-5 ℃, and the reaction time is kept for 12-18 hours.
Preferably, the protic acid is acetic acid.
Preferably, the concentration of the aqueous solution of protonic acid is 0.15 to 0.2mol/L.
Preferably, the weight ratio of the aniline to the protonic acid to the initiator is 1:0.9-1.1:1.4-2.1.
The initiator can be ammonium persulfate, sodium persulfate and the like; the initiator is added in the form of an aqueous solution, the concentration of which may be from 2 to 2.5mol/L.
The application also discloses application of the polyaniline/montmorillonite/charcoal composite adsorption material in treating iodine-containing wastewater.
Preferably, the iodine-containing wastewater is iodine-containing wastewater generated in the production of acetic acid.
The polyaniline/montmorillonite/charcoal composite adsorption material can adsorb substances such as multi-carbon alkyl iodine, iodide ions, iodine simple substances and the like in iodine-containing wastewater, can also adsorb other substances in the wastewater, and improves water quality.
The application also discloses a method for treating the iodine-containing wastewater, which uses the polyaniline/montmorillonite/charcoal composite adsorption material to carry out column chromatography treatment on the iodine-containing wastewater, wherein the number of times of column chromatography treatment n is more than or equal to 3, the flow rate of column chromatography is 1.8-2.2 resin bed volumes, and the time of column chromatography is 8-12min; the chromatographic liquid of the nth time is used as the liquid to be treated in the column chromatography of the (n+1) th time; preferably, the iodine-containing wastewater is iodine-containing wastewater generated in the production of acetic acid.
The application has the advantages that: the charcoal and the montmorillonite are modified to improve the dispersibility of the charcoal and the montmorillonite, amino groups are grafted on the charcoal and the montmorillonite, then the charcoal and the montmorillonite are uniformly dispersed in the aniline by ultrasonic, and an in-situ polymerization reaction is carried out to obtain the polyaniline/montmorillonite/charcoal composite adsorption material; the amino groups on the charcoal and the montmorillonite can participate in polymerization reaction, and the charcoal, the montmorillonite and the polyaniline are matched with each other, so that the adsorption performance of the material can be improved, and the high-efficiency treatment of the iodine-containing wastewater can be realized; the iodine content of the application is lower than 3ppm when the iodine-containing wastewater generated in the preparation of acetic acid with the iodine content of 4500ppm is subjected to column chromatography treatment for three times; the application has low sewage treatment cost and good treatment effect.
Drawings
FIG. 1 is an SEM image of a polyaniline/montmorillonite/charcoal composite adsorbent material.
Detailed Description
The technical scheme of the present application will be described in detail by means of specific examples, which should be explicitly set forth for illustration, but should not be construed as limiting the scope of the present application.
Example 1
A preparation method of polyaniline/montmorillonite/charcoal composite adsorption material comprises the following steps:
adding 90g of gamma-aminopropyl triethoxysilane and 9g of ammonia water into an ethanol water solution with the volume fraction of 95%, then adding 300g of charcoal powder, performing ultrasonic dispersion for 30min, heating to 45 ℃, stirring for reaction for 18h, filtering, washing a filter cake with ethanol, drying, and grinding to obtain the amino charcoal powder with the particle size less than or equal to 0.5 mu m;
100g of gamma-aminopropyl triethoxysilane modified montmorillonite with the particle size less than or equal to 0.5 mu m and 300g of aminated charcoal powder with the particle size less than or equal to 0.5 mu m are added into 200g of aniline, ultrasonic dispersion is carried out for 4 hours, then 17L of acetic acid aqueous solution with the concentration of 0.2mol/L is added and mixed evenly, the temperature is regulated to-15 ℃, 500mL of sodium persulfate aqueous solution with the concentration of 2.5mol/L is added dropwise, the heat preservation reaction is carried out for 18 hours, and the polyaniline/montmorillonite/charcoal composite adsorbing material is obtained through solid-liquid separation.
Example 2
A preparation method of polyaniline/montmorillonite/charcoal composite adsorption material comprises the following steps:
adding 120g of gamma-aminopropyl triethoxysilane and 21g of ammonia water into an ethanol water solution with the volume fraction of 85%, then adding 300g of charcoal powder, performing ultrasonic dispersion for 30min, heating to 50 ℃, stirring and reacting for 12h, filtering, washing a filter cake with ethanol, drying, and grinding to obtain the amino charcoal powder with the particle size of less than or equal to 0.5 mu m;
200g of gamma-aminopropyl triethoxysilane modified montmorillonite with the particle size less than or equal to 0.5 mu m and 300g of aminated charcoal powder with the particle size less than or equal to 0.5 mu m are added into 100g of aniline, ultrasonic dispersion is carried out for 6 hours, then 11L of acetic acid aqueous solution with the concentration of 0.15mol/L is added and mixed evenly, the temperature is regulated to-5 ℃, 340mL of sodium persulfate aqueous solution with the concentration of 2.5mol/L is added dropwise, the heat preservation reaction is carried out for 12 hours, and the polyaniline/montmorillonite/charcoal composite adsorbing material is obtained through solid-liquid separation.
Example 3
A preparation method of polyaniline/montmorillonite/charcoal composite adsorption material comprises the following steps:
adding 105g of gamma-aminopropyl triethoxysilane and 15g of ammonia water into an ethanol water solution with the volume fraction of 90%, then adding 300g of charcoal powder, performing ultrasonic dispersion for 30min, heating to 50 ℃, stirring for reaction for 15h, filtering, washing a filter cake with ethanol, drying, and grinding to obtain the amino charcoal powder with the particle size of less than or equal to 0.5 mu m;
adding 300g of gamma-aminopropyl triethoxysilane modified montmorillonite with the particle size less than or equal to 0.5 mu m and 300g of aminated charcoal powder with the particle size less than or equal to 0.5 mu m into 100g of aniline, carrying out ultrasonic 5h dispersion uniformly, then adding 8.4L of acetic acid aqueous solution with the concentration of 0.2mol/L, uniformly mixing, regulating the temperature to-10 ℃, dropwise adding 300mL of sodium persulfate aqueous solution with the concentration of 2.5mol/L, carrying out heat preservation reaction for 15h, and carrying out solid-liquid separation to obtain the polyaniline/montmorillonite/charcoal composite adsorption material.
The polyaniline/montmorillonite/charcoal composite adsorbent material prepared in example 3 was subjected to electron microscopy, and the results are shown in fig. 1. FIG. 1 is an SEM image of a polyaniline/montmorillonite/charcoal composite adsorbent material.
As can be seen from fig. 1: the polyaniline/montmorillonite/charcoal composite adsorption material is micron-sized particles.
Example 4
First iodine-containing wastewater treatment experiment:
taking the composite material prepared in the example 3, and washing the composite material with water until the PH of the washing liquid is about 7 and the conductivity is about 20 us/cm; then the composite material is filled into a double-layer sand core chromatographic column, pure water is put into a glass liquid storage ball after the composite material is filled, and a regulating valve is pressed to regulate the flow rate to 2 resin bed volumes (BV for short); then the pure water in the glass liquid storage ball is discharged, and the double-layer sand core chromatographic column is dried;
taking iodine-containing wastewater (iodine content generated in the iodine-containing wastewater is 4500ppm, PH=3.71, TDS=573 ppm, COD= 17439ppm, conductivity=960 us/cm), removing impurities such as suspended matters and ribbons by nanofiltration, and loading into glass liquid storage balls; the flow rate is kept at 2 BV, iodine ion adsorption treatment is carried out for 60min, 100ml PE is used for sampling and bottling the chromatographic liquid every 5min, then a visible spectrophotometer is used for detecting COD of the chromatographic liquid, a conductivity meter is used for detecting conductivity of the chromatographic liquid, acidity meter is used for detecting PH of the chromatographic liquid, a millet TDS pen is used for detecting TDS of the chromatographic liquid, and an ICP meter is used for detecting iodine ion content of the chromatographic liquid. The wastewater treatment results are shown in Table 1.
TABLE 1 first iodine-containing wastewater treatment results
As can be seen from Table 1, the iodine content in the chromatographic liquid is the lowest when the adsorption treatment is carried out for 10min, and the application can adsorb other substances in the wastewater to improve the water quality.
Example 5
The composite material obtained in example 3 was taken again, and a second experiment of iodine-containing wastewater treatment was performed in accordance with the method of example 4, wherein iodine-containing wastewater was replaced with the chromatographic liquid of the adsorption treatment for 10min in example 4, and the wastewater treatment results are shown in Table 2.
TABLE 2 results of treatment of iodine-containing wastewater from the second time
As can be seen from Table 2, the iodine content in the chromatographic liquid is the lowest when the adsorption treatment is carried out for 10min, and the application can adsorb other substances in the wastewater to improve the water quality.
Example 6
The composite material obtained in example 3 was taken again, and a third experiment of iodine-containing wastewater treatment was performed in accordance with the method of example 4, wherein iodine-containing wastewater was replaced with the chromatographic liquid subjected to the adsorption treatment for 10min in example 5, and the wastewater treatment results are shown in Table 3.
TABLE 3 third iodine-containing wastewater treatment results
It can be seen from Table 3 that the iodine content was 3ppm after the adsorption treatment for 10 minutes; the wastewater with iodine content of 4500ppm is treated by continuous column chromatography for three times by the polyaniline/montmorillonite/charcoal composite adsorption material, and the iodine content can be reduced to 3ppm; after three adsorption treatments, the iodine removal rate reaches 99.93%, the treatment effect of the iodine-containing wastewater is good, and the application can adsorb other substances in the wastewater to improve the water quality.
Comparative example 1
The procedure of example 3 was repeated except that the gamma-aminopropyl triethoxysilane was not added to modify the montmorillonite.
Comparative example 2
The procedure of example 3 was repeated except that the aminated charcoal powder was not added.
Comparative example 3
The procedure of example 3 was repeated except that the gamma-aminopropyl triethoxysilane-modified montmorillonite and the aminated charcoal powder were not added.
Composite materials prepared in examples 1-3 and comparative examples 1-3 were subjected to iodine-containing wastewater treatment experiments in accordance with the method of example 4, respectively, and the content of iodine ions in the chromatographic liquid subjected to adsorption treatment for 10min was detected. The results are shown in Table 4.
TABLE 4 iodine-containing wastewater treatment results for examples 1-3 and comparative examples 1-3
As can be seen from Table 4, the adsorption treatment performance of the present application on iodine-containing wastewater is far better than that of comparative examples 1 to 3.
After the iodine-containing wastewater is adsorbed, the composite material in the double-layer sand core chromatographic column is required to be analyzed, and the specific steps are as follows: and (3) discharging iodine-containing wastewater in the glass liquid storage ball, cleaning the glass liquid storage ball by using pure water, adding 30wt% of sodium hydroxide aqueous solution into the glass liquid storage ball, adjusting the flow rate to 1.5 BV, analyzing for 60min, taking analysis liquid from a 100ml PE sampling bottle every 10min, detecting until the COD, conductivity, PH, TDS and iodine ion content of the analysis liquid meet the regulations, stopping analyzing, releasing 30wt% of sodium hydroxide aqueous solution in the glass liquid storage ball, cleaning the glass liquid storage ball by using pure water, putting pure water into the glass liquid storage ball, and adjusting the flow rate to 3 BV, and leaching until the pH of the leaching liquid is about 8.
The iodine-containing wastewater (iodine content is 4500 ppm) generated in the current acetic acid production process is treated by using the polyaniline/montmorillonite/charcoal composite adsorption material for continuous column chromatography adsorption treatment for three times, the iodine content can be reduced to 3ppm, and the iodine-containing wastewater treatment cost can be greatly reduced.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.
Claims (8)
1. The application of polyaniline/montmorillonite/charcoal composite adsorption material in treating iodine-containing wastewater is characterized in that: the iodine-containing wastewater is generated during the preparation of acetic acid, polyaniline is obtained by aniline through polymerization reaction, charcoal is amino charcoal powder, and montmorillonite is montmorillonite modified by amino-containing silane coupling agent; the weight ratio of montmorillonite, charcoal and aniline in the raw materials is 0.5-3:1.5-3:1; the preparation method comprises the following steps of dispersing montmorillonite and aminated charcoal powder in aniline uniformly, adding protonic acid aqueous solution, mixing uniformly, adjusting the temperature, dripping initiator, reacting at a constant temperature, and carrying out solid-liquid separation to obtain the polyaniline/montmorillonite/charcoal composite adsorption material.
2. The use of polyaniline/montmorillonite/charcoal composite adsorbent material according to claim 1, for treating iodine-containing wastewater, comprising: the preparation process of the aminated charcoal powder comprises the steps of uniformly mixing the charcoal powder, an amino-containing silane coupling agent, ammonia water and a solvent, reacting for 12-18 hours at 45-50 ℃, and carrying out solid-liquid separation to obtain the aminated charcoal powder, wherein the solvent is an ethanol water solution with the volume fraction of 85-95%.
3. The use of the polyaniline/montmorillonite/charcoal composite adsorbent material according to claim 2, for treating iodine-containing wastewater, comprising: in the preparation process of the aminated charcoal powder, the weight ratio of the charcoal powder to the amino-containing silane coupling agent to the ammonia water is 1:0.3-0.4:0.03-0.07.
4. Use of a polyaniline/montmorillonite/charcoal composite adsorbent material according to any one of claims 1-3, for the treatment of iodine-containing wastewater, characterized in that: the grain diameter of the aminated charcoal powder is less than or equal to 0.5 mu m; the grain diameter of montmorillonite is less than or equal to 0.5 mu m.
5. The use of the polyaniline/montmorillonite/charcoal composite adsorbent material according to claim 4, for treating iodine-containing wastewater, comprising: the montmorillonite and the aminated charcoal powder are evenly dispersed in aniline for 4-6 hours by ultrasonic treatment.
6. The use of the polyaniline/montmorillonite/charcoal composite adsorbent material according to claim 4, for treating iodine-containing wastewater, comprising: the temperature is regulated to be between 15 ℃ below zero and 5 ℃ below zero, and the reaction time is kept for 12 to 18 hours.
7. The use of the polyaniline/montmorillonite/charcoal composite adsorbent material according to any one of claims 5 to 6, for the treatment of iodine-containing wastewater, characterized in that: the protonic acid is acetic acid; the concentration of the protonic acid aqueous solution is 0.15-0.2mol/L; the weight ratio of the aniline to the protonic acid to the initiator is 1:0.9-1.1:1.4-2.1.
8. A method for treating iodine-containing wastewater is characterized in that: carrying out column chromatography treatment on the iodine-containing wastewater by using the polyaniline/montmorillonite/charcoal composite adsorption material according to any one of claims 1 to 4, wherein the number of times of column chromatography treatment n is more than or equal to 3, the flow rate of column chromatography is 1.8 to 2.2 resin bed volumes, and the time of column chromatography is 8 to 12min; the nth chromatographic liquid is used as the liquid to be treated in the n+1th column chromatography.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886250A (en) * | 2012-10-23 | 2013-01-23 | 安徽工业大学 | Preparation method of polyaniline/montmorillonite composite adsorbent with sheet structure |
| CN103111272A (en) * | 2013-03-07 | 2013-05-22 | 西北师范大学 | Preparation and application of modified polyaniline-palygorskite composite adsorbent |
| CN104619410A (en) * | 2012-04-23 | 2015-05-13 | 能源及环境研究中心基金会 | Carbon nanocomposite sorbent and methods of using the same for separation of one or more materials from a gas stream |
| CN105597697A (en) * | 2015-12-30 | 2016-05-25 | 浙江博尼锦纶科技有限公司 | Bamboo charcoal and montmorillonoid composite adsorbent and preparation method thereof |
| CN106334539A (en) * | 2016-10-04 | 2017-01-18 | 青岛大学 | Cationic polymer modified montmorillonoid adsorbent and preparation method thereof |
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| KR101917257B1 (en) * | 2013-04-12 | 2018-11-09 | 차이나 페트로리움 앤드 케미컬 코포레이션 | Polymer/filler/metal composite fiber and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104619410A (en) * | 2012-04-23 | 2015-05-13 | 能源及环境研究中心基金会 | Carbon nanocomposite sorbent and methods of using the same for separation of one or more materials from a gas stream |
| CN102886250A (en) * | 2012-10-23 | 2013-01-23 | 安徽工业大学 | Preparation method of polyaniline/montmorillonite composite adsorbent with sheet structure |
| CN103111272A (en) * | 2013-03-07 | 2013-05-22 | 西北师范大学 | Preparation and application of modified polyaniline-palygorskite composite adsorbent |
| CN105597697A (en) * | 2015-12-30 | 2016-05-25 | 浙江博尼锦纶科技有限公司 | Bamboo charcoal and montmorillonoid composite adsorbent and preparation method thereof |
| CN106334539A (en) * | 2016-10-04 | 2017-01-18 | 青岛大学 | Cationic polymer modified montmorillonoid adsorbent and preparation method thereof |
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