CN108636100A - A kind of multi-functional catalysis filtrate preparation method of dedusting denitration - Google Patents
A kind of multi-functional catalysis filtrate preparation method of dedusting denitration Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
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- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/32—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of manganese, technetium or rhenium
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Abstract
The present invention provides a kind of multi-functional catalysis filtrate preparation methods of dedusting denitration, belong to material processing and function filter material technical field.The present invention is using ion exchange resin as medium, make grafting, solidification of the catalytic active component on resin, and by filter material substrate surface construction catalytic resin film, realize high intensity, the efficient coupling of denitration catalyst active component and filtrate, catalytic active component and filtrate can be effectively improved to combine closely degree, the dusting of catalytic active component is solved the problems, such as, fall off；The denitration efficiency of catalyst and the filter efficiency of filtrate are not influenced simultaneously, so that filtrate is had both the filter capacity to PM2.5 dust, and using existing filtrate preparation facilities, it is simple for process.
Description
Technical field
The present invention relates to material processing and function filter material technical field, and in particular to a kind of multi-functional catalysis filter of dedusting denitration
Preparation method for material.
Background technology
China has more than 600,000,000 people and can be seriously affected by haze every year, dust, nitrogen oxides (NOx) it is to cause haze
Main chief culprit.China NOxIt is up to 24,000,000 tons/year and 15,000,000 tons/year respectively with the discharge capacity of dust, is that the first in the world is big
State is discharged, is lost caused by annual more than 300,000,000,000 yuan, dust and NOxImprovement have become the urgent of China's air contaminant treatment
Demand.Currently, what is used both at home and abroad is dedusting and denitration (NO mostlyxRemoving) independently operated mode.Dedusting is using pocket type, electricity
The bag combined technology of formula, electricity-, wherein bag type dust removing technology are the trend of future development since PM2.5 removal performances are high；And it takes off
Nitre then mainly use selective catalytic reduction (Selective Catalytic Reduction, SCR) denitration technology (it is efficient,
Non-secondary pollution, the use of 98% power plant).But for the industries such as cement, steel, the complexity due to its operating mode and no volume
Outer space motion Benitration reactor can not use SCR technology.Therefore, the denitration technology of stability and high efficiency becomes these industries
Active demand.Filtrate dedusting denitration technology is truly realized an object two use by the way that catalyst to be carried on filtrate supporter, and
Using existing deduster as Benitration reactor, without being further added by new denitration device, the space shared by SCR device can be saved
And fund input, the cost of business processes flue gas is reduced, application prospect is extremely wide.
At present in patent of the country in relation to dedusting denitration function filter material, patent (CN103463871A) is branch with glass fibre
Filtrate is supportted, by infusion process by MnOxDenitrating catalyst is carried on glass fibre filtrate；Patent (CN102772953A) is with Mn/
CNTs and Ce/CNTs is denitration catalyst active component, is carried on filter bag；Patent (CN102145241A) with Mn, Ce, La, Nd,
The oxide of Pr, Fe, Cu, Co, Ni are denitration catalyst active component, are carried on polyphenyl thioether filter material.The above patent is straight
It connects and catalytic active component is carried on filtrate with the methods of dipping, this method can not only influence the filterability of filtrate itself
Can, and the easy powder of detached of catalyst up is loaded, seriously affect the dedusting denitration effect of multifunctional filter material.
Invention content
Purpose of the present invention is to a kind of multi-functional catalysis filtrate of dedusting denitration of place offer against the above deficiency is simple, efficient
Preparation method, this method make grafting, solidification of the catalytic active component on resin, and pass through using ion exchange resin as medium
In filter material substrate surface construction catalytic resin film, high intensity, the efficient coupling of denitration catalyst active component and filtrate are realized, and
Filtrate is set to have both PM2.5 strainabilities.
The method of the present invention is simple, without changing existing filtrate preparation facilities, the multi-functional filter of dedusting denitration prepared
Material is without powder of detached phenomenon, and impact resistance is good, and dust removal efficiency ＞ 99%, denitration activity reaches 90% or more.The present invention is to realizing
The industrialization and popularization and application of flue gas while dedusting denitration filter bag are of great significance.
To achieve the above object, technical solution provided by the invention is：
A kind of multi-functional catalysis filtrate preparation method of dedusting denitration, the specific steps are：
(1) resin pre-processes
The cation exchange resin powder of certain grain size is cleaned with deionized water to supernatant colorless and odorless free from admixture；Then
Resin 5-10h is impregnated with a concentration of 1-8% dilute hydrochloric acid solutions, is washed with deionized water to the close neutrality of pH；Again with a concentration of 1-8%
Sodium hydroxide solution impregnate resin 5-10h, with clear water be washed till pH close to neutrality.Resin after cleaning dries in 55 DEG C of baking oven
To constant weight.
(2) preparation of catalytic resin powder
Will treated cation exchange resin powder, be placed in catalytic active component precursor liquid and carry out catalytic active component
Cation exchanges.After vacuum filtration, toner is placed in sodium hydroxide-sodium chloride mixed solution to (concentration is 7%, W/
V), persistently it is aerated in shaking in 20-40 DEG C of shaking table, is taken out after 12-24h, resin is rinsed repeatedly with deionized water, until
The close neutrality of pH value of solution.Then resin is put into 40-60 DEG C of baking oven and is dried to constant weight.Catalytic resin powder is obtained, sealing is protected
It deposits for use.
(3) preparation of catalytic resin film precursor
The first step：Catalytic resin powder, coupling agent, auxiliary agent, lubricant are weighed according to the ratio.Its percent mass proportioning is：
Second step：Coupling agent is mixed with auxiliary agent first；Then remaining powder is put into blender progress with reagent
It is mixed, mixing speed is 100-1000 revs/min, mixing time 60-600 minutes, and 20-40 DEG C of whipping temp is to get to urging
Change resin film precursor；
(4) filtrate base fabric pre-processes
By filtrate base fabric soaking treatment agent, dip time 2-6min, then at 200-300 DEG C in dry 5-10min, you can
Complete the pretreatment to filtrate base fabric.
(5) prepared by the multi-functional catalysis filtrate of dedusting denitration
The catalytic resin film precursor prepared is coated uniformly on filtrate scrim surfaces, is then rolled by hot-pressing roller,
So that catalytic resin is formed a film and compound with filter material substrate hot pressing, the multi-functional catalysis filtrate of dedusting denitration can be obtained after cooling.
Catalytic active component cation-exchange conditions are in step (2)：20-40 DEG C of temperature shakes 12-24h in shaking table.
Hot pressing compound condition is in step (5)：100-300 DEG C of temperature, pressure 1-5MPa, the processing speed on hot-pressing roller
Degree is 2-5m/min.
It is preferred that above-mentioned cation exchange resin powder is sulphonated stryrene divinyl benzene copolymer, resin-oatmeal powder particles
Grain size is 0.1-1um.
It is preferred that above-mentioned catalytic active component precursor liquid is manganese chloride (concentration 0.1mol/L), cerium chloride (concentration 0.1mol/
L), iron chloride (0.1mol/L), nickel chloride (concentration 0.1mol/L), manganese chloride (concentration 0.08mol/L)+cerium chloride (concentration
0.02mol/L) mixed solution, manganese chloride (concentration 0.06mol/L)+cerium chloride (concentration 0.02mol/L)+iron chloride
(0.02mol/L) mixed solution, manganese chloride (concentration 0.06mol/L)+cerium chloride (concentration 0.02mol/L)+nickel chloride
One kind of (0.02mol/L) mixed solution.
It is preferred that above-mentioned coupling agent is one kind in polyvinyl chloride, Vingon.
It is preferred that above-mentioned auxiliary agent is one kind in dimethylformamide, isopropyl acetate.
It is preferred that above-mentioned lubricant is one kind in n-butyl stearate, Isopars.
Filtrate base fabric described in preferred steps (4) is that PE filtrates, glass fiber filter material, P84 filtrates or fluorine U.S. think the one of filtrate
Kind.
The styrene emulsion and crylic acid ester mixture that inorganic agent described in preferred steps (4) is mass concentration 5-10% are molten
Liquid, wherein the mass percentage concentration of acrylate is 1-3%.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention realizes the high intensity of denitration catalyst active component and filtrate, efficiently assembling, can effectively improve catalysis
Active component and filtrate are combined closely degree, simple for process using existing filtrate preparation facilities.
(2) present invention can be by making filtrate have both the filter capacity of PM2.5 dust the catalytic resin film constructed.
(3) present invention can meet different operating modes to denitrification rate by the control in aperture and thickness to catalytic resin film
It is required that.
(4) the multi-functional catalysis filtrate of dedusting denitration prepared by the present invention can effectively avoid dust and be rushed to denitrating catalyst
It hits, dust removal efficiency ＞ 99%, denitrification rate reaches 90% or more.
(5) present invention is of great significance to the production domesticization and popularization and application of realizing flue gas while dedusting denitration filtrate.
Specific implementation mode
Following specific embodiment is next, and the present invention will be further described, and but the scope of the present invention is not limited thereto.
Embodiment 1
1, the sulphonated stryrene divinyl benzene copolymer that grain size is 1um is cleaned with deionized water to the colourless nothing of supernatant
Taste free from admixture；Then resin 8h is impregnated with a concentration of 5% dilute hydrochloric acid solution, be washed with deionized water to the close neutrality of pH；Again with dense
Degree impregnates resin 8h for 5% sodium hydroxide solution, and pH is washed till close to neutrality with clear water.Resin after cleaning is in 40 DEG C of baking oven
In dry to constant weight.
2, will treated sulphonated stryrene divinyl benzene copolymer powder, it is molten to be placed in manganese chloride (concentration 0.1mol/L)
In liquid, temperature is controlled at 20 DEG C, and 12h is shaken in shaking table.After vacuum filtration, toner is placed in sodium hydroxide-sodium chloride and is mixed
It closes in solution (concentration is 7%, W/V), is persistently aerated in shaking in 20 DEG C of shaking table, is taken out after 12h, use deionized water
Resin is rinsed repeatedly, until the close neutrality of pH value of solution.Then resin is put into 40 DEG C of baking oven and is dried to constant weight.Obtain catalysis tree
Cosmetics end is sealed for use.
3, weigh 200g (20%) polyvinyl chloride, 200g isopropyl acetates (20%), 10g n-butyl stearates (1%),
590g (59%) catalytic resin powder.Coupling agent is mixed with auxiliary agent first；Then remaining powder is put into reagent stirs
It mixes device to be mixed, mixing speed is 100 revs/min, mixing time 600 minutes, and 20 DEG C of whipping temp is set to get to catalysis
Adipose membrane presoma；
4,10g (1%) acrylate is weighed, the styrene emulsion of 990g (99%) 10% is configured to mixed solution.By glass
Fiber filter material is immersed in mixed solution, dip time 6min, is then completed to glass fiber filter material base fabric in dry 5min at 300 DEG C
Pretreatment.
5, the catalytic resin film precursor that step 3 prepares uniformly is coated into the glass fiber filter material base fabric table of filter after treatment
Then face is rolled, pressure 5Mpa, speed 2m/min by 300 DEG C of hot-pressing rollers, keep catalytic resin film forming hot with filter material substrate simultaneously
It presses compound, the multi-functional catalysis filtrate of dedusting denitration can be obtained after cooling.
NOx, dust removal efficiency：
| Sample | Temperature | Denitration activity | Efficiency of dust collection | PM2.5 removal efficiencies |
| Embodiment 1 | 200℃ | 52% | 99% | 95% |
NOxRemoval efficiency test method is as follows：
Experimental provision is anti-by air distribution system, flow control (mass flowmenter), gas mixer, gas preheater, catalysis
Device and flue gas analysis system is answered to constitute.Internal diameter Φ=20mm.The disk that filter cloth is cut into Φ=20mm is stood in fixed reactor,
Flat-temperature zone temperature residing for filter cloth, is then put into fixing tubular reactor by reactor.Simulated flue gas group becomes：
NO(600ppm)、NH3(600ppm)、O2(8%) and carrier gas N2Composition, filtration velocity 1m/min, NH3/ NO=1,
Reaction temperature is controlled at 200 DEG C.Each gas flow is controlled by mass flowmenter.Gas first passes through gas before entering reactor mixed
Clutch mixing is heated using heater.The NO concentration of air inlet and gas outlet is measured by KM9106 (Kane) flue gas analyzer.
In order to eliminate the influence of adsorption, system starts collecting test in stable 20~30 minutes in ventilation.
The catalytic activity of catalyst reflects that the denitration activity of NO is calculated by following formula by the denitration activity of NO：
Denitration activity=[(C0-C)/C0] × 100%
In formula, C0For NO initial concentrations, C is NO concentration in gas after processing.
Dust removal efficiency test method is as follows：
Using VDI filtrate simulation testing device test sample strainabilities, select Pural NF aluminum oxide dusts, dust dense
Spend 5g/m3, filtration velocity 2m/min, deashing pressure difference 1000Pa test areas 0.0154m2, pulse jet interval 5s, tank pressure
0.5MPa, humidity ＜ 50%, pulse valve opening time 60ms.
Embodiment 2
1, the sulphonated stryrene divinyl benzene copolymer that grain size is 0.7um is cleaned with deionized water colourless to supernatant
Tasteless free from admixture；Then resin 8h is impregnated with a concentration of 7% dilute hydrochloric acid solution, be washed with deionized water to the close neutrality of pH；It uses again
A concentration of 7% sodium hydroxide solution impregnates resin 9h, and pH is washed till close to neutrality with clear water.Resin after cleaning is in 55 DEG C of baking
It dries to constant weight in case.
2, will treated sulphonated stryrene divinyl benzene copolymer powder, be placed in manganese chloride (concentration 0.06mol/L)+
In cerium chloride (concentration 0.02mol/L)+nickel chloride (0.02mol/L) mixed solution, temperature is controlled at 35 DEG C, is shaken in shaking table
24h.After vacuum filtration, toner is placed in sodium hydroxide-sodium chloride mixed solution (concentration is 7%, W/V), 35
DEG C shaking table in while shaking while be persistently aerated, take out afterwards for 24 hours, resin rinsed repeatedly with deionized water, until pH value of solution close in
Property.Then resin is put into 55 DEG C of baking oven and is dried to constant weight.Catalytic resin powder is obtained, is sealed for use.
3,100g (10%) polyvinyl chloride, 90g isopropyl acetates (9%), 20g n-butyl stearates (2%), 790g are weighed
(79%) catalytic resin powder.Coupling agent is mixed with auxiliary agent first；Then remaining powder is put into blender with reagent
It is mixed, mixing speed is 600 revs/min, mixing time 450 minutes, and 35 DEG C of whipping temp is to get to catalytic resin film
Presoma；
4,20g (2%) acrylate is weighed, the styrene emulsion of 980g (98%) 8% is configured to mixed solution.By P84
Filtrate is immersed in mixed solution, dip time 4min, is then completed to glass fiber filter material base fabric in dry 10min at 250 DEG C
Pretreatment.
5, the catalytic resin film precursor that step 3 prepares uniformly is coated into the P84 filtrate scrim surfaces of filter after treatment,
Then rolled by 240 DEG C of hot-pressing rollers, pressure 4Mpa, speed 4m/min, make catalytic resin film forming simultaneously with filter material substrate hot pressing
It is compound, it can obtain the multi-functional catalysis filtrate of dedusting denitration after cooling.
NOx removal efficiency：
| Sample | Temperature | Denitration activity | Efficiency of dust collection | PM2.5 removal efficiencies |
| Embodiment 2 | 200℃ | 95% | 99.9% | 99.9% |
NOx, dust removal efficiency method for testing are the same as embodiment 1.
Embodiment 3
1, the sulphonated stryrene divinyl benzene copolymer that grain size is 0.1um is cleaned with deionized water colourless to supernatant
Tasteless free from admixture；Then resin 10h is impregnated with a concentration of 1% dilute hydrochloric acid solution, be washed with deionized water to the close neutrality of pH；It uses again
A concentration of 1% sodium hydroxide solution impregnates resin 10h, and pH is washed till close to neutrality with clear water.Resin after cleaning is in 60 DEG C
It dries to constant weight in baking oven.
2, will treated sulphonated stryrene divinyl benzene copolymer powder, be placed in manganese chloride (concentration 0.08mol/L)+
In cerium chloride (concentration 0.02mol/L) mixed solution, temperature is controlled at 40 DEG C, and 20h is shaken in shaking table.After vacuum filtration, it will set
Cosmetics end is placed in sodium hydroxide-sodium chloride mixed solution (concentration is 7%, W/V), is held in shaking in 40 DEG C of shaking table
It is continuous to be aerated, it is taken out after 20h, resin is rinsed repeatedly with deionized water, until the close neutrality of pH value of solution.Then resin is put into 60 DEG C
Baking oven in dry to constant weight.Catalytic resin powder is obtained, is sealed for use.
3,50g (5%) polyvinyl chloride, 50g isopropyl acetates (5%), 1g n-butyl stearates (0.1%), 899g are weighed
(89.9%) catalytic resin powder.Coupling agent is mixed with auxiliary agent first；Then remaining powder is put into stirring with reagent
Device is mixed, and mixing speed is 1000 revs/min, mixing time 60 minutes, and 40 DEG C of whipping temp is to get to catalytic resin
Film precursor；
4,30g (3%) acrylate is weighed, the styrene emulsion of 970g (97%) 5% is configured to mixed solution.By PE
Filtrate is immersed in mixed solution, dip time 2min, is then completed to glass fiber filter material base fabric in dry 8min at 200 DEG C
Pretreatment.
5, the catalytic resin film precursor that step 3 prepares uniformly is coated into the glass fiber filter material base fabric table of filter after treatment
Then face is rolled, pressure 1Mpa, speed 2m/min by 100 DEG C of hot-pressing rollers, keep catalytic resin film forming hot with filter material substrate simultaneously
It presses compound, the multi-functional catalysis filtrate of dedusting denitration can be obtained after cooling.
NOx removal efficiency：
| Sample | Temperature | Denitration activity | Efficiency of dust collection | PM2.5 removal efficiencies |
| Embodiment 3 | 200℃ | 75% | 99% | 97% |
NOx, dust removal efficiency method for testing are the same as embodiment 1.
Embodiment 4
1, the sulphonated stryrene divinyl benzene copolymer that grain size is 0.4um is cleaned with deionized water colourless to supernatant
Tasteless free from admixture；Then resin 5h is impregnated with a concentration of 3% dilute hydrochloric acid solution, be washed with deionized water to the close neutrality of pH；It uses again
A concentration of 4% sodium hydroxide solution impregnates resin 5h, and pH is washed till close to neutrality with clear water.Resin after cleaning is in 50 DEG C of baking
It dries to constant weight in case.
2, will treated sulphonated stryrene divinyl benzene copolymer powder, be placed in manganese chloride (concentration 0.06mol/L)+
In cerium chloride (concentration 0.02mol/L)+iron chloride (0.02mol/L) mixed solution, temperature is controlled at 55 DEG C, is shaken in shaking table
12h.After vacuum filtration, toner is placed in sodium hydroxide-sodium chloride mixed solution (concentration is 7%, W/V), 55
DEG C shaking table in while shaking while be persistently aerated, taken out after 12h, resin rinsed repeatedly with deionized water, until pH value of solution close in
Property.Then resin is put into 50 DEG C of baking oven and is dried to constant weight.Catalytic resin powder is obtained, is sealed for use.
3, weigh 50g (5%) polyvinyl chloride, 150g isopropyl acetates (15%), 15g n-butyl stearates (1.5%),
785g (78.5%) catalytic resin powder.Coupling agent is mixed with auxiliary agent first；Then remaining powder is put into reagent
Blender is mixed, and mixing speed is 400 revs/min, mixing time 400 minutes, and 40 DEG C of whipping temp is to get to catalysis
Resin film precursor；
4,15g (1.5%) acrylate is weighed, the styrene emulsion of 985g (98.5%) 7% is configured to mixed solution.
Fluorine U.S. think of filtrate is immersed in mixed solution, dip time 5min, then in dry 10min at 300 DEG C, completes to think fluorine U.S.
The pretreatment of filtrate base fabric.
5, the catalytic resin film precursor that step 3 prepares uniformly is coated into the glass fiber filter material base fabric table of filter after treatment
Then face is rolled, pressure 3Mpa, speed 5m/min by 210 DEG C of hot-pressing rollers, keep catalytic resin film forming hot with filter material substrate simultaneously
It presses compound, the multi-functional catalysis filtrate of dedusting denitration can be obtained after cooling.
NOx removal efficiency：
| Sample | Temperature | Denitration activity | Efficiency of dust collection | PM2.5 removal efficiencies |
| Embodiment 4 | 200℃ | 85% | 99% | 98% |
NOx, dust removal efficiency method for testing are the same as embodiment 1.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, any ripe
Professional and technical personnel is known, without departing from the scope of the present invention, according to the technical essence of the invention, to above real
Apply any simple modification, equivalent replacement and improvement etc. made by example, still fall within technical solution of the present invention protection domain it
It is interior.
Claims (10)
1. a kind of multi-functional catalysis filtrate preparation method of dedusting denitration, which is characterized in that the specific steps are：
(1) resin pre-processes
The cation exchange resin powder of certain grain size is cleaned with deionized water to supernatant colorless and odorless free from admixture；Then with dense
Degree is that 1-8% dilute hydrochloric acid solutions impregnate resin 5-10h, is washed with deionized water to the close neutrality of pH；Again with the hydrogen of a concentration of 1-8%
Sodium hydroxide solution impregnates resin 5-10h, and pH is washed till close to neutrality with clear water；Resin after cleaning dries in 40-60 DEG C of baking oven
To constant weight；
(2) preparation of catalytic resin powder
Will treated cation exchange resin powder is placed in carried out in catalytic active component precursor liquid catalytic active component sun from
Son exchanges；After vacuum filtration, toner is placed in (sodium hydroxide-sodium chloride concentration in sodium hydroxide-sodium chloride mixed solution
It is 7%, W/V), it is persistently aerated in shaking in 20-40 DEG C of shaking table, takes out after 12-24h, rushed repeatedly with deionized water
Resin is washed, until the close neutrality of pH value of solution；Then resin is put into 40-60 DEG C of baking oven and is dried to constant weight, is sealed for use；
(3) preparation of catalytic resin film precursor
The first step：Catalytic resin powder, coupling agent, auxiliary agent, lubricant are weighed according to the ratio；Its percent mass proportioning is：
Second step：Coupling agent is mixed with auxiliary agent first；Then remaining powder blender is put into reagent to mix
Stirring is closed, mixing speed is 100-1000 revs/min, mixing time 60-600 minutes, and 20-40 DEG C of whipping temp is to get to catalysis
Resin film precursor；
(4) filtrate base fabric pre-processes
By filtrate base fabric soaking treatment agent, dip time 2-6min, then at 100-200 DEG C in dry 5-10min, you can complete
Pretreatment to filtrate base fabric；
(5) prepared by the multi-functional catalysis filtrate of dedusting denitration
The catalytic resin film precursor prepared is coated uniformly on filtrate scrim surfaces, is then rolled by hot-pressing roller, makes to urge
It is compound with filter material substrate hot pressing while change resin film forming, it can obtain the multi-functional catalysis filtrate of dedusting denitration after cooling.
2. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Step
(2) catalytic active component cation-exchange conditions are in：20-40 DEG C of temperature shakes 12-24h in shaking table.
3. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Step
(5) hot pressing compound condition is in：100-300 DEG C of temperature, pressure 1-5MPa, the processing speed on hot-pressing roller are 2-5m/
min。
4. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Described
Cation exchange resin powder is sulphonated stryrene divinyl benzene copolymer, and resin-oatmeal powder particles grain size is 0.1-1um.
5. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Described
Catalytic active component precursor liquid is manganese chloride (concentration 0.1mol/L), cerium chloride (concentration 0.1mol/L), iron chloride (0.1mol/
L), nickel chloride (concentration 0.1mol/L), manganese chloride (concentration 0.08mol/L)+cerium chloride (concentration 0.02mol/L) mixed solution,
Manganese chloride (concentration 0.06mol/L)+cerium chloride (concentration 0.02mol/L)+iron chloride (0.02mol/L) mixed solution, manganese chloride
One kind of (concentration 0.06mol/L)+cerium chloride (concentration 0.02mol/L)+nickel chloride (0.02mol/L) mixed solution.
6. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Described
Coupling agent is one kind in polyvinyl chloride, Vingon.
7. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Described
Auxiliary agent is one kind in dimethylformamide, isopropyl acetate.
8. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Described
Lubricant is one kind in n-butyl stearate, Isopars.
9. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Step
(4) the filtrate base fabric described in is one kind that filtrate is thought by PE filtrates, glass fiber filter material, P84 filtrates or fluorine U.S..
10. the multi-functional catalysis filtrate preparation method of a kind of dedusting denitration according to claim 1, it is characterised in that：Step
(4) styrene emulsion and crylic acid ester mixture solution that the inorganic agent described in is mass concentration 5-10%, wherein acrylate
Mass percentage concentration be 1-3%.
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