CN103506066B - A kind of Novel mineral silicon dioxide desiccant powder and preparation method thereof - Google Patents
A kind of Novel mineral silicon dioxide desiccant powder and preparation method thereof Download PDFInfo
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- CN103506066B CN103506066B CN201310428333.XA CN201310428333A CN103506066B CN 103506066 B CN103506066 B CN 103506066B CN 201310428333 A CN201310428333 A CN 201310428333A CN 103506066 B CN103506066 B CN 103506066B
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Abstract
The present invention relates to a kind of Novel mineral silicon dioxide desiccant powder and preparation method thereof.Described Novel mineral silicon dioxide desiccant powder, comprises the component of following weight percentage: mineral 25 ~ 75%, silica 25 ~ 75%.Novel mineral silicon dioxide desiccant powder of the present invention compared with prior art, primary raw material adopts natural environmental-protective mineral, used in combination with silica through purifying, mineral are made to wrap up silica dioxide granule through specific physical technique, create good synergy, thus produce the more excellent mineral silica drier powder of performance; Compared with mineral agent, wettability power is higher; Do not change the interlayer natural structure of mineral, environmentally safe, there is huge application prospect and economic worth.
Description
Technical field
The present invention relates to chemical material field, particularly, relate to a kind of Novel mineral silicon dioxide desiccant powder and preparation method thereof.
Background technology
Along with the quick step of modern society develops, drier is more and more used in every field.The raising that application requires, just more and more higher to the requirement of drier itself.Require drier in use safe and reliable, moisture pick-up properties stablize, volume is less, and can be reproduced, Reusability.
The major defect of the mineral substance drier generally adopted in recent years is: generally all adopt acid wash or ion-exchange for improving its moisture pick-up properties in the fabrication process, although method is easy, but the structure of the natural formation of mineral self can be changed, and a large amount of contaminated wastewater environment can be produced.
Patent application CN02137547.X discloses a kind of production method manufacturing ball-type montmorillonite active drying agent, described production method is the stirring that is first hydrolyzed in cartridge type knockout drum by ca-montmorillonite ore, make its layering that suspends, then the floating upper and impurity of upper strata lightweight is bled off, extract the ca-montmorillonite powder in intermediate layer, finally bleed off gravel and the Silica grain of deposition, the ca-montmorillonite powder slurry extracted in intermediate layer dries, dries.The ca-montmorillonite powder of ball-type montmorillonite active drying agent is after pulverizing, then na-montmorillonite powder is selected to adopt above-mentioned same step to carry out manufacturing the na-montmorillonite powder of ball-type montmorillonite active drying agent, finally ca-montmorillonite powder and na-montmorillonite powder are mixed, mix thoroughly, then carry out granulation, obtain described ball-type montmorillonite active drying agent.The shortcoming that this technology exists is: complicated process of preparation, hydroscopicity is lower.
Patent application CN201210343451.6 discloses a kind of air drying agent.With parts by weight, composed of the following components: silica gel: 10 ~ 20, calcium chloride: 5 ~ 8, talcum powder: 20 ~ 30, starch: 10 ~ 20, magnesium sulfate: 3 ~ 6, calcium sulfate: 4 ~ 8, bentonite: 20 ~ 30, essence: 0.3 ~ 0.6.The shortcoming that disclosed content exists is: only simply mixed by material, component is more, and cost is larger; Do not disclose concrete experimental data, empirical tests, its moisture pick-up properties is also bad, and hydroscopicity is lower.
Summary of the invention
In order to solve problems of the prior art, an object of the present invention is to provide a kind of Novel mineral silicon dioxide desiccant powder.
Another object of the present invention is to, a kind of preparation method of described Novel mineral silicon dioxide desiccant powder is provided.
Novel mineral silicon dioxide desiccant powder provided by the invention, comprises the component of following weight percentage: mineral 25 ~ 75%, silica 25 ~ 75%.
Novel mineral silicon dioxide desiccant powder provided by the invention, preferably, comprises the component of following weight percentage: mineral 30 ~ 50%, silica 50 ~ 70%.
Novel mineral silicon dioxide desiccant powder provided by the invention, more preferably, comprises the component of following weight percentage: mineral 35 ~ 50%, silica 50 ~ 65%.
Above-mentioned percentage composition is the percentage that the weight of each component accounts for all components (mineral and silica etc.) gross weight.
Wherein, described mineral are natural minerals, i.e. the mineral of natural degradable; Preferably, described mineral are selected from: one or more in montmorillonite, bentonite and attapulgite clay.
Wherein, described silica is selected from: one or both in pore (A type) and gross porosity (Type B) silica gel, and its wettability power is higher.
The preparation method of Novel mineral silicon dioxide desiccant powder provided by the invention, comprises the following steps:
1) mineral are purified: be first soaked in water the mineral of described ratio to abundant expansion, sieve;
2) wrap up: grind after the mineral of purification are mixed with the silica of described ratio, then carry out centrifugation, obtained parcel liquid;
3) dry: obtained parcel liquid to be carried out concentrate drying, obtains mineral silica powder.
Wherein, in step 1), described water for purifying waste water, pure water or purified water etc.
Wherein, in step 1), the time of soaking mineral is more than 50 hours.
Wherein, in step 1), the consumption soaking mineral water used is 15 ~ 20 times of ore weight.
Wherein, in step 1), mineral are soaked in water to abundant expansion, cross 200 orders with top sieve.
Wherein, step 2) in, silica is powder (i.e. silicon dioxide powder or silica white), and its particle diameter is: more than 400 orders.
Wherein, step 2) in, milling time is more than 60 hours.
Wherein, step 2) in, rotating speed time centrifugal is more than 2000 revs/min.
Wherein, in step 3), dry mode can be vacuum drying or drying box drying.
The preparation method of Novel mineral silicon dioxide desiccant powder provided by the invention, further, comprises the following steps:
1) mineral are purified: first stirred with purifying waste water by the mineral of described ratio and fully soak, treat that it fully expands, sieve, removing bulky grain thing impurity ore deposit soil;
2) wrap up: the mineral of purification are dropped into machine for cutting charge into pieces together with the silicon dioxide powder of described ratio and grinds, then mixed material is carried out centrifugation, to remove particle, obtained parcel liquid;
3) dry: obtained parcel liquid to be carried out concentrate drying, obtains mineral silica powder.
Novel mineral silicon dioxide desiccant powder of the present invention, if carry out further deep processing again, can be applicable to various medicine, health products, medicine equipment, electronic material, the drier applications such as accurate mechanical equipment.
The drier powder (being called for short mineral silica drier powder) that mineral of the present invention and silica are made is the one of moisture protected dry drying prescription, adopt mineral, especially purification natural minerals and silica are primary sorbent, make mineral silica drier powder through specific physical technique.
The main feature of Novel mineral silicon dioxide desiccant powder of the present invention is:
One, adopt physical method purification natural minerals, do not change the interlayer natural structure of mineral, do not produce waste liquid, environmentally safe;
Two, adopt physical method to wrap up in mineral interlayer structure by silica granule, both realizations moisture pick-up properties maximizes; Ability and the simple mineral of absorption steam have very big raising;
Three, renewable after using and be reused;
Four, any chemical substance is not added, harmless, safe and reliable, environmentally safe, odorless, tasteless, non-corrosiveness.
Five, preparation technology is simple, and cost is low.
In a word, Novel mineral silicon dioxide desiccant powder of the present invention compared with prior art, primary raw material adopts natural environmental-protective mineral, used in combination with silica through purifying, mineral are made to wrap up silica dioxide granule through specific physical technique, create good synergy, thus produce the more excellent mineral silica drier powder of performance; Compared with mineral agent, wettability power is higher; Do not change the interlayer natural structure of mineral, environmentally safe, there is huge application prospect and economic worth.
Accompanying drawing explanation
Fig. 1 is the photo of silicon dioxide powder.
Fig. 2 is the photo of mineral powder.
Fig. 3 is the photo of mineral silica powder
Detailed description of the invention
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Unit of the present invention " part " can refer to: jin, kilogram, gram, kilogram, ton ... etc. unit of weight, determine according to practical condition.
The routine that the NM operation of the present invention and technological parameter are this area is selected, the conventional material of material used also for can commercially obtain.
Embodiment 1
The first step: natural minerals is purified
First purifying waste water of montmorillonite ore deposit soil 5 parts of use 80 parts is stirred fully immersion more than 50 hours, treat that it fully expands, sieve more than 200 orders, isolate bulky grain thing impurity ore deposit soil.
Second step: parcel
The mineral of above-mentioned purification and pore (A type) silicon dioxide powder (particle diameter is more than 400 orders) 8 parts are dropped into machine for cutting charge into pieces, grind more than 60 hours, by mixed material supercentrifuge centrifugal (rotating speed is more than 2000 revs/min), removing particle, obtained parcel liquid.
3rd step: dry
Obtained parcel liquid is concentrated, and vacuum drying, obtain mineral silica drier powder.
Embodiment 2
The first step: natural minerals is purified
First 2 parts, montmorillonite ore deposit soil and purifying waste water of attapulgite clay 3 parts of use 100 parts are stirred fully immersion more than 50 hours, treat that it fully expands, sieve more than 200 orders, isolate bulky grain thing impurity ore deposit soil.
Second step: parcel
By the mineral of above-mentioned purification and pore (A type) silica white (particle diameter is: particle diameter is more than 400 orders) 3 parts, gross porosity (Type B) silica white 2 parts drops into machine for cutting charge into pieces together, grind more than 60 hours, by mixed material supercentrifuge centrifugal (rotating speed is more than 2000 revs/min), removing particle, obtained parcel liquid.
3rd step: dry
Obtained parcel liquid is concentrated, and drying box is dry, obtained mineral silica drier powder.
Embodiment 3
Other are with embodiment 1, and difference is: use and account for gross weight: the montmorillonite ore deposit soil of 20%, the bentonite of 25%, gross porosity (Type B) silica white of 60%, obtained mineral silica drier powder.
Comparative example 1
Other are with embodiment 1, and difference is: use and account for gross weight: the montmorillonite ore deposit soil of 30%, pore (A type) silicon dioxide powder of 70%, obtained mineral silica drier powder.
Comparative example 2
Other are with embodiment 1, and difference is: use and account for gross weight: the montmorillonite ore deposit soil of 70%, pore (A type) silicon dioxide powder of 30%, obtained mineral silica drier powder.
Experimental example
To Novel mineral silicon dioxide desiccant powder of the present invention (by embodiment 1 and the obtained drier powder of embodiment 2) and existing similar mineral agent (purchased from Chang Xinhong peak, Tianjin drier Co., Ltd), and according to the mineral silica drier powder that the ratio of comparative example 1 and 2 obtains, adopt the conventional method of this area to carry out performance test, contrast as follows:
As can be seen from the above table: Novel mineral silicon dioxide desiccant powder of the present invention is compared with existing mineral agent, and absorptivity increases greatly, the hydroscopicity especially when RH80% increases more (adding at least 20 percentage points).If do not adopt the ratio of invention to obtain mineral silica drier powder, when mineral content is too low, absorbent properties are not as good as existing mineral agent; When mineral implication is too high, though moisture absorption can be slightly higher than existing mineral agent, also not as mineral silica drier powder of the present invention, illustrate that the proportioning of drier powder material of the present invention creates good synergy.
Further, as can be seen from Fig. 1 ~ Fig. 3, the present invention adopts physical method to wrap up in mineral interlayer structure by silica granule, and the laminated structure of mineral powder is covered in silica particles, does not change the interlayer natural structure of mineral.
Other embodiments and embodiment 1 effect similar, but be excellent with embodiment 1 and embodiment 2.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (6)
1. a mineral silica drier powder, is prepared from by the component of following weight percentage: mineral 25 ~ 75%, silica 25 ~ 75%;
Described mineral are natural minerals, are selected from one or both in montmorillonite, bentonite;
The preparation method of described mineral silica drier powder, comprises the following steps:
1) mineral are purified: be first soaked in water the mineral of described ratio to abundant expansion, sieve;
2) wrap up: grind after the mineral of purification are mixed with the silica of described ratio, then carry out centrifugation, obtained parcel liquid;
3) dry: obtained parcel liquid to be carried out concentrate drying, obtains mineral silica powder;
Step 1) in, the time of soaking mineral is more than 50 hours, and the consumption soaking mineral water used is 15 ~ 20 times of ore weight;
Step 1) in, mineral are soaked in water to abundant expansion, cross 200 orders with top sieve; Step 2) in, silica is powder, and its particle diameter is: more than 400 orders.
2. mineral silica drier powder according to claim 1, is characterized in that, be prepared from by the component of following weight percentage: mineral 30 ~ 50%, silica 50 ~ 70%.
3. mineral silica drier powder according to claim 1, is characterized in that, be prepared from by the component of following weight percentage: mineral 35 ~ 50%, silica 50 ~ 65%.
4. the mineral silica drier powder according to claims 1 to 3 any one, it is characterized in that, described silica is selected from: one or both in pore and silochrom.
5. mineral silica drier powder according to claim 1, is characterized in that, step 2) in, milling time is more than 60 hours.
6. mineral silica drier powder according to claim 1, is characterized in that, step 2) in, rotating speed time centrifugal is more than 2000 revs/min.
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| CN109304076A (en) * | 2018-07-18 | 2019-02-05 | 安徽省金海种业有限公司 | A kind of graininess seed drying agent and preparation method thereof |
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| CN104014226A (en) * | 2014-05-07 | 2014-09-03 | 娄志 | Method for preparing attapulgite desiccant |
| CN106925239A (en) * | 2017-04-11 | 2017-07-07 | 安徽省明美矿物化工有限公司 | A kind of novel drier and preparation method thereof |
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| CN107008237A (en) * | 2017-04-14 | 2017-08-04 | 安徽博硕科技有限公司 | A kind of mineral agent and preparation method |
| CN109452353A (en) * | 2018-09-05 | 2019-03-12 | 徐州爱迪食品有限公司 | A kind of dried fruit desiccant |
| CN109647141A (en) * | 2019-02-25 | 2019-04-19 | 洪伟 | A kind of composite drying agent and its preparation method and application |
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| CN117884090A (en) * | 2023-12-28 | 2024-04-16 | 安徽华骐生态环境材料有限公司 | Novel montmorillonite drying agent and production process thereof |
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| DE2036819C3 (en) * | 1970-07-24 | 1978-10-19 | Sued-Chemie Ag, 8000 Muenchen | Process for the production of silicate adsorbents and desiccants |
| CN1416947A (en) * | 2001-10-31 | 2003-05-14 | 上海博力科技发展有限公司 | Active deoxidizing desiccant and its prepn |
| CN100525898C (en) * | 2007-05-17 | 2009-08-12 | 张红军 | High hydroscopicity drier |
| CN101229508B (en) * | 2007-10-18 | 2011-01-19 | 周健 | Macromolecule radical hygroscopic material and preparing method thereof |
| CN101628221A (en) * | 2008-07-15 | 2010-01-20 | 郑州天祥无机材料有限公司 | Spherical calcium oxide adsorbent and preparation method thereof |
| CN102284279B (en) * | 2010-06-18 | 2013-02-27 | 中国石油化工股份有限公司 | Attapulgite/silicon dioxide composite powder and preparation method thereof |
| CN102283860A (en) * | 2011-07-14 | 2011-12-21 | 济南康众医药科技开发有限公司 | Preparation method for montmorillonite preparation |
| CN102989412A (en) * | 2011-09-09 | 2013-03-27 | 刘维 | High-efficiency dehumidifying agent |
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| CN109304076A (en) * | 2018-07-18 | 2019-02-05 | 安徽省金海种业有限公司 | A kind of graininess seed drying agent and preparation method thereof |
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