CN205146223U - Photocatalyst nano TiO2 hydrosol production device - Google Patents
Photocatalyst nano TiO2 hydrosol production device Download PDFInfo
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- CN205146223U CN205146223U CN201520937645.8U CN201520937645U CN205146223U CN 205146223 U CN205146223 U CN 205146223U CN 201520937645 U CN201520937645 U CN 201520937645U CN 205146223 U CN205146223 U CN 205146223U
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- hydrosol
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Abstract
本实用新型公开了光触媒纳米TiO2水溶胶生产装置，包括预配槽、滴加反应釜和陈化反应釜。本生产装置配置合理，生产的光触媒纳米TiO2水溶胶体系稳定，不团聚，含量高，尤其适用于体系极不稳定的1～10纳米级TiO2水溶胶生产，生产效率大幅提高。
The utility model discloses a photocatalyst nanometer TiO 2 hydrosol production device, which comprises a pre-dispensing tank, a dripping reaction kettle and an aging reaction kettle. The configuration of the production device is reasonable, and the photocatalyst nano-TiO 2 hydrosol system produced is stable, does not agglomerate, and has a high content. It is especially suitable for the production of 1-10 nanometer-level TiO 2 hydrosol with an extremely unstable system, and the production efficiency is greatly improved.
Description
Technical field
The utility model relates to photocatalyst product production field, is specifically related to photo-catalytic nano TiO
2hydrosol process units.
Background technology
Light urges matchmaker to be a kind of with nanoscale TiO
2for the general name with the photosemiconductor material of photo-catalysis function of representative, it is the current ideal material administering indoor environmental pollution in the world, under the effect of light, produce strong catalytic degradation function, can effectively degrade as toxic and harmfuls such as formaldehyde in air, effectively can kill various bacteria, antibiotic rate is up to 99.99%, and the toxin that bacterium or fungi can be discharged decomposes and harmless treatment, also possesses the function such as deodorizing, anti-soil simultaneously.
In recent years, due to the appearance of " finishing pollution syndrome ", pollution of indoor environment is frequently existing, becomes the focus that people pay close attention to.According to authority, exceed standard at the house fitting pollution of China more than 70%, and seriously polluted exceeding standard reaches more than 30%.It not only can cause the diseases such as pneumonia, tracheitis, leukaemia, cerebral thrombus, also may cause a series of diseases such as pregnant woman miscarries, newborn teratogenesis.
By nanoscale TiO
2arrange in fabric face, form photocatalyst product, meet consumer's " demand for security ", market prospects are very wide.As mentioned above, photocatalyst is under the irradiation of light, similar photosynthetic light-catalyzed reaction can be produced, produce the extremely strong free hydroxy of oxidability and active oxygen, there is very strong photoredox function, therefore the surface area of the unit volume of photocatalyst is larger, the effect of light-catalyzed reaction is stronger, the free hydroxy produced and active oxygen more, can say that particle size is the key index of photocatalyst quality, this just requires photocatalyst in preparation and follow-uply to deposit with in use procedure, not only needs TiO
2particle diameter should be enough little, need TiO simultaneously
2can not agglomeration be there is, affect light reaction area into, and butyl titanate be poured in acid solution to mix by current hydrosol preparation method, there is the defect of following two aspects:
One is can only adopt higher than 30 nanoscale TiO
2as raw material, if with lower than 30 nanoscale TiO
2as raw material, TiO must be there is in preparation
2agglomeration, not only wastes resource, and cannot prepare the TiO of high-load
2the hydrosol, give birth to agglomeration (although done solid-liquor separation to the aggregate of precipitation in preparation process in subsequent storage and use procedure relaying supervention simultaneously, but the little aggregate not forming precipitation is still stayed in the hydrosol, in storage, these little aggregates can continue to reunite), make TiO in the hydrosol of acquisition
2extremely unstable, TiO in the hydrosol
2content can reduce gradually along with the passing in storage time.
Two is the above TiO of 30 nanoscale
2, its can with and conduction band between band-gap energy be 5.127 × 10
-19j, its energy equivalence in wavelength be the ultraviolet light of 387.5nm, third contact of a total solar or lunar eclipse catalytic reaction can only be issued at below 388nm UV-irradiation, particular requirement is had to illumination, limit the environment for use of carrier, in other words, will not have in the environment not having ultraviolet light degraded air in as toxic and harmfuls such as formaldehyde, kill the effects such as various bacteria.
When the size of particle is at 1 ~ 10 nanoscale, there will be quantum effect, become quantization particle, obvious forbidden band broadens, electron-hole has stronger redox ability, and the raising with dimensional quantum degree increases by catalytic activity, makes also can reach desirable effect under normal illumination.With 1 ~ 10 nanoscale TiO
2prepare photocatalyst TiO
2the hydrosol, makes its carrier light-catalyzed reaction can occur under normal illumination, for consumers in general benefit, is the technical problem that industry scientific worker needs solution badly.
Therefore a set of rational photo-catalytic nano TiO is designed
2hydrosol process units realizes suitability for industrialized production and is even more important.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of photo-catalytic nano TiO
2hydrosol process units, Equipments Setting is reasonable, the photo-catalytic nano TiO of production
2hydrosol stable system, does not reunite, and content is high, is particularly useful for 1 ~ 10 nanoscale TiO of system extremely unstable
2the hydrosol is produced, and production efficiency significantly improves.
The utility model is achieved through the following technical solutions:
Photo-catalytic nano TiO
2hydrosol process units, comprises prewired groove, dropwise reaction still and ageing reactor;
Described prewired groove is provided with agitating device, for preparing butyl titanate homogeneous phase solution;
Described dropwise reaction still is provided with agitating device, for preparing inorganic acid solution; And be provided with Dropping feeder or spray painting device, for the dropping of the butyl titanate prepared in prewired groove homogeneous phase solution or spray painting are entered participation system reaction in the inorganic acid solution constantly stirred;
Described ageing reactor, reacts to obtain photo-catalytic nano TiO for the dispersion liquid reacted in dropwise reaction still being carried out sealing and standing ageing
2the hydrosol;
The further improvement project of the utility model is, presses liquid level size in described dropwise reaction still, at least every 50 ~ 80 sides centimetre setting water dropper.
The utility model further improvement project is, between the Dropping feeder of described prewired groove and dropwise reaction still or spray painting device, is communicated with by pump between dropwise reaction still with ageing reactor.By transport pump material, increase work efficiency.
The utility model further improvement project is, described ageing reactor is communicated with decompressor, and is communicated with the pipe heat exchanger outside still.
The utility model further improvement project is, described pipe heat exchanger is communicated with lime set feeder.
The utility model further improvement project is, described ageing reactor is communicated with holding vessel.
The utility model compared with prior art, has following obvious advantage:
One, as stated in the Background Art, TiO in the hydrosol
2particle size, content height is the key index of photocatalyst quality, but nanoscale TiO
2the hydrosol is extremely unstable in the reaction system of producing, and very easily reunites, separates out phenomenon, cause TiO
2light reaction surface area reduces, and content reduces, and finally affects the photocatalysis performance of photocatalyst product.Research staff sums up through long term test, photocatalyst TiO
2the hydrosol produce in butyl titanate homogeneous phase solution be even more important to drip and to participate in reaction in inorganic acid solution that the method for spray painting is dissolved under stirring, therefore the equipment of corresponding realized production technology is set in production line.
Two, make vacuum distillation to the hydrosol after ageing and not only can remove the peculiar smell that ethanol and negative reaction thing butanols etc. bring, can promote hydrosol pH value reaches 2.0 ~ 3.0 simultaneously, makes its stable performance in storage process.With addition of adjustable pH value to 3.0 ~ 4.0 of distilled water when later stage uses, after adding fabric face to, then by the operation such as exhausting, oven dry, pH value close to 7, thus reaches free from extraneous odour, free from corrosion effect.The utility model is communicated with decompressor at ageing reactor, and is communicated with the pipe heat exchanger outside still, meets the rear vacuum distillation technique of ageing reaction.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Detailed description of the invention
As shown in Figure 1, the utility model comprises prewired groove 11, dropwise reaction still 12 and ageing reactor 15;
Described prewired groove 11 is provided with agitating device 17, for preparing butyl titanate homogeneous phase solution;
Described dropwise reaction still 12 is provided with agitating device 17, for preparing inorganic acid solution; And be provided with Dropping feeder 13(or spray painting device), for the dropping of the butyl titanate prepared in prewired groove homogeneous phase solution or spray painting are entered participation system reaction in the inorganic acid solution constantly stirred; Liquid level size is pressed, at least every 50 ~ 80 square centimeters of settings water dropper in dropwise reaction still.
Described ageing reactor 15, reacts to obtain photo-catalytic nano TiO for the dispersion liquid reacted in dropwise reaction still being carried out sealing and standing ageing
2the hydrosol;
Described ageing reactor 15 is communicated with decompressor 14, and is communicated with the pipe heat exchanger 16 outside still, carries out vacuum distillation for the hydrosol good to ageing, removes the peculiar smell that ethanol and negative reaction thing butanols etc. bring, and can promote hydrosol pH value reaches 2.0 ~ 3.0 simultaneously.
The Dropping feeder 12(of described prewired groove 23 and dropwise reaction still or spray painting device) between, be communicated with by pump 18 between dropwise reaction still 12 with ageing reactor 15.
Described pipe heat exchanger 16 is communicated with lime set feeder 10.Described ageing reactor 15 is communicated with holding vessel 19.
Photo-catalytic nano TiO
2hydrosol production technology:
(1) get butyl titanate and the organic solvent of weight portion 0.9 ~ 1:1, under room temperature, butyl titanate is dissolved in organic solvent and forms butyl titanate homogeneous phase solution, stir, for subsequent use;
(2) get inorganic acid under room temperature and water is mixed to get PH=1.5 ~ 3.5 inorganic acid solution, stir, for subsequent use;
(3) under 20 DEG C ~ 60 DEG C conditions, by butyl titanate homogeneous phase solution to drip or the mode of spray painting adds in the inorganic acid solution of stirring and obtains milky dispersion liquid, rate of addition is no faster than 2/s, often drips titanate esters volumes of aqueous ethanol 0.04 ~ 0.07ml; Butyl titanate homogeneous phase solution and inorganic acid solution weight ratio are 1:3 ~ 5;
(4) be added dropwise to complete rear continuation stirring more than 1 hour, obtain milky dispersion liquid;
(5) by chemical centrifugal pump, the aqueous dispersions in dropwise reaction still is pumped in ageing reactor, by dispersion liquid sealing and standing ageing more than 120 hours, form the translucent nano-TiO of micro-yellow
2the hydrosol;
(6) after ageing is good, by decompressor, the pressure in ageing reactor is reduced to 0.07 ~ 0.15MPa negative pressure, to TiO
2the hydrosol distills, and removes the peculiar smell that ethanol and negative reaction thing butanols etc. bring, control TiO
2hydrosol pH value is 2.0 ~ 3.0, and the hydrosol unloading of having distilled is stand-by in holding vessel 19, and the waste liquid formed in still-process is collected in lime set feeder 10 by pipe heat exchanger 16.
Claims (6)
1. photo-catalytic nano TiO
2hydrosol process units, is characterized in that: comprise prewired groove (11), dropwise reaction still (12) and ageing reactor (15);
Described prewired groove (11) is provided with agitating device (17), for preparing butyl titanate homogeneous phase solution;
Described dropwise reaction still (12) is provided with agitating device (17), for preparing inorganic acid solution; And be provided with Dropping feeder (13) or spray painting device, for the dropping of the butyl titanate prepared in prewired groove homogeneous phase solution or spray painting are entered participation system reaction in the inorganic acid solution constantly stirred;
Described ageing reactor (15), reacts to obtain photo-catalytic nano TiO for the dispersion liquid reacted in dropwise reaction still being carried out sealing and standing ageing
2the hydrosol.
2. photo-catalytic nano TiO according to claim 1
2hydrosol process units, is characterized in that: by liquid level size in described dropwise reaction still (12), at least every 50 ~ 80 two square centimeters of setting water droppers or atomizing nozzle.
3. photo-catalytic nano TiO according to claim 1
2hydrosol process units, is characterized in that: between the Dropping feeder (13) of described prewired groove (11) and dropwise reaction still or spray painting device, be communicated with by pump (18) between dropwise reaction still (12) with ageing reactor (15).
4. photo-catalytic nano TiO according to claim 1
2hydrosol process units, is characterized in that: described ageing reactor (15) is communicated with decompressor (14), and is communicated with the pipe heat exchanger (16) outside still.
5. photo-catalytic nano TiO according to claim 4
2hydrosol process units, is characterized in that: described pipe heat exchanger (16) is communicated with lime set feeder (10).
6. photo-catalytic nano TiO according to claim 1
2hydrosol process units, is characterized in that: described ageing reactor is communicated with holding vessel (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520937645.8U CN205146223U (en) | 2015-11-23 | 2015-11-23 | Photocatalyst nano TiO2 hydrosol production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520937645.8U CN205146223U (en) | 2015-11-23 | 2015-11-23 | Photocatalyst nano TiO2 hydrosol production device |
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|---|---|
| CN205146223U true CN205146223U (en) | 2016-04-13 |
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| CN201520937645.8U Expired - Fee Related CN205146223U (en) | 2015-11-23 | 2015-11-23 | Photocatalyst nano TiO2 hydrosol production device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363400A (en) * | 2015-11-23 | 2016-03-02 | 江苏腾盛纺织科技集团有限公司 | Photocatalyst nano TiO2 hydrosol production device |
| CN107790113A (en) * | 2016-09-06 | 2018-03-13 | 天津儒创新材料科技有限公司 | A kind of modified nano photo-catalytic hydrosol production line |
-
2015
- 2015-11-23 CN CN201520937645.8U patent/CN205146223U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363400A (en) * | 2015-11-23 | 2016-03-02 | 江苏腾盛纺织科技集团有限公司 | Photocatalyst nano TiO2 hydrosol production device |
| CN107790113A (en) * | 2016-09-06 | 2018-03-13 | 天津儒创新材料科技有限公司 | A kind of modified nano photo-catalytic hydrosol production line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20211123 |