CN1425503A - Process for processing nano grade super fine tourmaline micro crystal with negative ion generating function - Google Patents
Process for processing nano grade super fine tourmaline micro crystal with negative ion generating function Download PDFInfo
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- CN1425503A CN1425503A CN 02157796 CN02157796A CN1425503A CN 1425503 A CN1425503 A CN 1425503A CN 02157796 CN02157796 CN 02157796 CN 02157796 A CN02157796 A CN 02157796A CN 1425503 A CN1425503 A CN 1425503A
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Abstract
The present invention disclooses the preparing process of nano level superfine tourmalline microcrystal with negative ion generating function. The process may obtain superfine tourmaline microcrystal with stable size and doubled negative ion generating function. The present invention may be used in raising the negative ion density in air to create optimized living environment.
Description
Technical field
The invention belongs to mechanical ultra-fine grinding field, particularly a profit is applied to the super-fine processing technology production method of nanoscale special material.
Background technology
General knowledge is told us, when you at the beach of fountain, waterfall, beautiful scenery, when stop in the lake, perhaps when the stroll of the field that the sun shines again after the rain, you can feel to breathe happy, relaxed and joyful.This is because contain a large amount of anions in the air here, and (as measuring with the air ion concentration measuring apparatus, at this moment airborne negative ion concentration can reach 10,000/cm/
3～20,000/cm
3), cause air fresh especially, this is that the Nature is the living environment of the human grace of creating, such environment helps people's health, longevity.Yet the content of the negative aeroion that the city that population is relatively concentrated, inhabitation, office, hotel, restaurant, hospital etc. are indoor seldom, (generally at 100/cm
3Below), it is muddy that air seems.Along with growth in the living standard and modern medicine development, human the city of self living and the degree of attentiveness of earth environment are increased severely, hope becomes pure and fresh as above-mentioned said the Nature with the air in own room, also allows airborne negative ion concentration reach up to ten thousand/cm in other words
3More than, this expectation of people is exactly the striving direction of scientists.Scientists is pursued constantly and is explored, earlier 1990s, multiple anion generator has appearred on the market, it is exactly the trial of this exploration, once fashionable for a time, but found this action of high voltage of utilizing afterwards, when producing anion, supervene harmful substances such as ozone and oxynitrides, thereby the market of fading out soon.Almost at the same time, minority scientist focuses on notice the developmental research of tourmaline.As far back as 1880s, the brother at first finds and proves that jewel level tourmaline is a kind of natural crystal with permanent electrode in the Pi Ailuocha of France, and this ore is to human body, all have great effect to environment, but does not attract much attention.After 100 years, before and after promptly 1986, the research that minority scientist has carried out the tourmaline of natural jewel level again, find that this jewel not only has pyroelectricity, piezoelectricity, but also has the emission infrared ray, launch little electric current, the emission negatron, can make the surrounding air negative ionization, make functions such as instant water negative ionization, the discovery of these phenomenons, very naturally, edify the characteristic that people remove to explore a large amount of non-jewel level tourmaline of discarding, found that these tourmaline have the characteristic of jewel level tourmaline equally, also all in other words tourmaline all have common characteristic, promptly has piezoelectricity, pyroelectricity, the emission infrared ray, launch little electric current, the emission negatron can make the surrounding air negative ionization, makes the characteristic of instant water negative ionization.This characteristic that can make the surrounding air negative ionization of tourmaline is regarded as a kind of natural anion generator by people in the nature of things, although it is compared with natural forest, fountain, waterfall, seabeach, lake, the quantity of its anion is less relatively.But people are broken into small crystals according to the cleavage characteristic of crystal with megacryst, find that its emission electronics has improved the ability of surrounding air negative ionization, and that is to say with negative ion concentration in apparatus measures unit's air has increased.Therefore people manage to utilize the modern age superfine technique that tourmaline is carried out ultra-fine grinding very naturally, but when tourmaline is crushed to particle diameter less than 1 micron, the peculiar charged characteristic of tourmaline, the tourmaline crystal is an a kind of end positively charged, the electronegative polar molecule of the other end, just limited it and further pulverized, obviously, it has brought a new difficult problem to comminution engineering.But the ultra-fine grinding of tourmaline is imperative again, and this is not only in order to give full play to the function (bringing into play the function of its natural anion generator in other words) that its discharges negatron, and for the needs of following process, the technical barrier that the present invention that Here it is need solve.
Summary of the invention
The objective of the invention is to disclose a kind of processing method with nano level superfine tourmaline crystallite of negative ion generating function, can obtain to have the tourmaline of the superfine microcrystal of stable yardstick, make tourmaline discharge the negatron function and improve exponentially, thereby the negative ion concentration around the tourmaline is increased substantially.
Design of the present invention is such:
On the one hand in order to overcome the autohemagglutination phenomenon (agglomeration) of tourmaline after by ultra-fine grinding, be convenient to tourmaline on the other hand when subsequent applications, evenly disperse, require tourmaline to keep enough fineness, we imagine the wet ball grinding super-fine processing method that adopts, select suitable dispersant simultaneously for use, gained tourmaline slurry imports in the decanter type supercentrifuge, by the high speed centrifugation classification of sedimentation, obtain the tourmaline slurry of different stage respectively, and then by dehydration, the dry product that obtains different stage respectively.
The present invention also is achieved in that
The said processing method with nano level superfine tourmaline crystallite of negative ion generating function of the present invention mainly comprises the steps:
1, the preliminary treatment of tourmaline
Preferentially select for use that radioactive intensity and nature background are close, infrared emittance more than 0.92, static negative ion concentration is at 5000/cm
3Above tourmaline, water cleans up, then 130 ℃ of heating disinfection sterilizations 15 minutes.
2, the roughing of tourmaline
Earlier with the tourmaline mechanical crushing to particle diameter 1-2mm, find that under this state many sheet mica that are clipped in the ore separate with tourmaline, screened and removed mica.Available hydrometer method is removed mica clean, otherwise the laminated structure of mica will be brought beyond thought difficulty to later super-fine processing, obtain pure tourmaline particle.
3, pure tourmaline particle is finish-machined to micron order tourmaline crystal
The pure tourmaline of step 2 gained is carried out fine finishining with ultrafine crusher, and the tourmaline crystal that obtains particle diameter≤50 μ m (wherein 10 μ m-15 μ m more than 80%) is as the raw material of further processing.
4, micron order tourmaline crystal further is processed into nanoscale tourmaline crystal
Micron-sized tourmaline crystal is processed into stabilized nano level tourmaline crystal, and this is a core technology of the present invention, also is the claimed content of the present invention.It mainly comprises the steps:
(1) at first the tourmaline of≤50 μ m is handled by one-level ball mill grinding processing and high speed centrifugation classification of sedimentation, obtained the thin brilliant tourmaline slurry of particle diameter≤2 μ m levels, the condition of one-level ball mill grinding processing is:
The tourmaline of≤50 μ m is mixed in following ratio with deionized water:
Tourmaline: 10%-20% (percentage by weight, down together)
Deionized water: 90%-80%
Place ball mill, carry out one-level ball mill grinding processing 32-48 hour with grinding aid, the tourmaline slurries with gained after the end import in the decanter type supercentrifuge, carry out the centrifugal sedimentation classification, tell particle diameter≤2 μ m tourmaline slurries, carry out next step secondary ball milling processing; The tourmaline slurry of telling particle diameter＞2 μ m then returns and proceeds the processing of one-level ball milling in the ball mill.Wherein≤2 the productive rate of the tourmaline slurry of μ m is about 90%.
(2) carry out secondary ball mill grinding processing and high speed centrifugation classification of sedimentation and handle, obtain the tourmaline slurry of particle diameter 50nm-90nm and particle diameter tourmaline slurry respectively greater than 90nm-450nm.With the tourmaline slurry of the particle diameter≤2 μ m of above-mentioned acquisition with after an amount of dispersant and deionized water mix, place another ball mill and carry out secondary ball mill grinding processing 24-32 hour with grinding aid, after the end, the tourmaline slurry of gained is imported in the decanter type supercentrifuge, carry out the centrifugal sedimentation classification, can obtaining 1. respectively, particle diameter is a 50nm-90nm tourmaline slurry, through dehydration, dry, obtain first class product of the present invention, yield is 78% (when contained tourmaline amount is benchmark when dropping into the secondary ball milling, down with): 2. particle diameter is greater than the slurry of 90nm-450nm, through dehydration, dry, obtain secondary product of the present invention, yield is 20%.
Said grinding aid is a kind of in zirconia ball, the alumina balls, and its sphere diameter is 2-5mm, the suitable preferential zirconia ball that uses about sphere diameter 3mm.
Said dispersant is a hexametaphosphate, can be a kind of in calgon, hexa metaphosphoric acid potassium, the hexa metaphosphoric acid calcium, the suitable preferential calgon that uses, its consumption is the 1%-5% (weight ratio) of≤2 μ m tourmaline amount of slurry, in other words: when the tourmaline slurry of≤2 μ m is 1 part, then the consumption of dispersant is 1%～5% part.The preferential reason of calgon of using has: 1. it is not only a kind of good dispersant, and is a kind of food grade additives.2. inexpensive, be easy to get.
The specific embodiment
Further illustrate content of the present invention below in conjunction with embodiment, but these embodiment do not limit protection scope of the present invention.
Embodiment 1
Get the fine finishining gained≤tourmaline of 50 μ m (wherein 80% above particle diameter is 10-15 μ m), 100 grams, deionized water 900 grams, place ball mill, carried out one-level ball milling super-fine processing 32 hours with the grinding aid zirconia ball, tourmaline slurries with gained after the end import in the decanter type supercentrifuge, carry out the centrifugal sedimentation classification, the tourmaline slurry of telling particle diameter≤2 μ m is stand-by, its output is 90%, and the tourmaline slurry of all the other particle diameters＞2 μ m returns back and proceeds one-level ball milling super-fine processing in the ball Mo machine.Get tourmaline slurry 900 grams of above-mentioned particle diameter≤2 μ m and the aqueous solution that 100 grams contain 18 gram hexametaphosphates, place another ball mill, carried out secondary ball milling super-fine processing 24 hours with the grinding aid zirconia ball, after the end, in the tourmaline slurry importing decanter type supercentrifuge with gained, carry out the high speed centrifugation classification of sedimentation, can obtaining 1. respectively, particle diameter is the tourmaline slurry of 50nm-90nm, through dehydration, drying, obtain first class product 70.2 grams of the present invention, yield is 78%; 2. particle diameter through dehydration, dry (the amount number dehydrates after can merging many batches together) after a little while, obtains secondary product of the present invention greater than the tourmaline slurry of 90nm-450nm.The sphere diameter of said grinding aid zirconia ball is 3mm, and said hexametaphosphate is a hexa metaphosphoric acid calcium.
The result is as follows with air ion concentration measurement and control instrument side amount: the negative ion concentration in the first class product surrounding air can reach 3.5 ten thousand/cm
3(dead point), corresponding emission rate is 120/second; Negative ion concentration in the secondary product surrounding air reaches 1.8 ten thousand/cm
3(dead point), corresponding emission rate is 60/second.
Embodiment 2
Get the fine finishining gained≤tourmaline of 50 μ m (wherein 80% above particle diameter is 10-15 μ m), 200 grams, deionized water 800 grams, place ball mill, carried out one-level ball milling super-fine processing 48 hours with the grinding aid zirconia ball, tourmaline slurries with gained after the end import in the decanter type supercentrifuge, carry out the centrifugal sedimentation classification, the tourmaline slurry of telling particle diameter≤2 μ m is stand-by, its productive rate is 90%, and the tourmaline slurry of all the other particle diameters＞2 μ m then returns back and proceeds one-level ball milling super-fine processing in the ball Mo machine.
Tourmaline slurry 800 grams and 200 of getting the particle diameter≤2 μ m of above-mentioned gained restrain the aqueous solution that contains 40 gram hexametaphosphates, place another ball mill, carried out secondary ball milling super-fine processing 32 hours with the grinding aid zirconia ball, after the end, gained tourmaline slurries are imported in the decanter type supercentrifuge, carry out the high speed centrifugation classification of sedimentation, tell the 1. tourmaline slurry of 50nm-90nm of particle diameter, through dehydration, drying, obtain first class product one nano level superfine tourmaline crystallite product 124.8 grams of the present invention, yield is more than 78%; 2. particle diameter through dehydration, drying, obtains secondary product of the present invention (thicker nano level superfine tourmaline crystallite product) greater than the tourmaline slurry of 90nm-450nm.The sphere diameter of used grinding aid zirconia ball is 2mm, and hexametaphosphate is a calgon.
The result is as follows with air ion concentration measurement and control instrument side amount:
Negative ion concentration in the first class product surrounding air reaches 40,000/cm
3(dead point), corresponding emission rate is 160/second; Negative ion concentration in the secondary product surrounding air reaches 20,000/cm
3(dead point), corresponding emission rate is 80/second.
Therefore, adopt method of the present invention, can obtain stabilized nano level ultra-fine tourmaline crystallite, thereby make tourmaline excite the function of anion to obtain fully playing, help post processing processing greatly because dispersant adds in addition, as very easily being dispersed in interior wall (or exterior wall) coating, or be dispersed in the slurry of bafta, or in the staple fibre, use developing for tourmaline good basis is provided, promoted the development of the living environment engineering of human optimization self greatly.
Claims (3)
1, a kind of nano level superfine tourmaline crystallite processing method with negative ion generating function is characterized in that this method core technology mainly comprises two steps:
(1) at first≤50 μ m tourmaline are handled by one-level ball mill grinding processing and high speed centrifugation classification of sedimentation, obtained the thin brilliant tourmaline slurry of particle diameter≤2 μ m, the condition of one-level ball milling processing is:
The tourmaline of particle diameter≤50 μ m: 10%-20% (percentage by weight, down together)
Deionized water: 90%-80%
Place a ball mill, carry out one-level ball mill grinding processing 32-48 hour with grinding aid, the tourmaline slurries with gained after the end import in the decanter type supercentrifuge, carry out the centrifugal sedimentation classification, tell particle diameter≤2 μ m tourmaline slurries, and are stand-by; Telling particle diameter returns greater than the tourmaline slurry of 2 μ m and proceeds one-level ball mill grinding processing in the ball mill;
(2) with the tourmaline slurry of above-mentioned≤2 μ m with after dispersant mixes in following ratio,
The tourmaline slurry of≤2 μ m: portion
Dispersant hexametaphosphate: 1～5% part (percentage by weight)
Deionized water: an amount of
Place another ball mill, and nationality helps grinding aid to carry out secondary ball mill grinding processing 24～32 hours, after the end, the tourmaline slurry of gained is imported in the sedimentation-type centrifuge, carry out the centrifugal sedimentation classification, can obtain respectively: 1. particle diameter is the tourmaline slurry of 50nm-90nm, through dehydration, drying, obtains first class product of the present invention; 2. particle diameter through dehydration, drying, obtains secondary product of the present invention greater than the tourmaline slurry of 90nm-450nm.
2, processing method as claimed in claim 1 is characterized in that: wherein said grinding aid is a kind of in zirconia ball, the alumina balls, and its sphere diameter is 2-5mm, the suitable preferential zirconia ball that uses about sphere diameter 3mm.
3, processing method as claimed in claim 1 is characterized in that: said dispersant is that hexametaphosphate is a kind of in calgon, hexa metaphosphoric acid potassium, the hexa metaphosphoric acid calcium, the suitable preferential calgon that uses.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333026C (en) * | 2005-05-02 | 2007-08-22 | 复旦大学 | Controlled released stably coating material capable of purifying air and preparation method thereof |
| CN1986473B (en) * | 2005-12-22 | 2010-05-05 | 深圳市海川实业股份有限公司 | Tourmaline powder modifying process |
| CN101450845B (en) * | 2007-11-29 | 2011-09-14 | 上海阳山材料科技有限公司 | High negative ion tourmaline powder and preparation method thereof |
| CN102266945A (en) * | 2011-08-20 | 2011-12-07 | 陈登刚 | Ball-milling process and device for iron-based alloy powder |
| CN102409183A (en) * | 2011-10-31 | 2012-04-11 | 长沙矿冶研究院有限责任公司 | Gold extraction method by pre-oxidation and cyanide leaching of refractory gold concentrate |
| CN101857238B (en) * | 2009-04-08 | 2012-07-18 | 中国地质科学院郑州矿产综合利用研究所 | Preparation method of tourmaline superfine powder for spinning |
| CN106000555A (en) * | 2016-05-31 | 2016-10-12 | 连云港海蓝研磨材料有限公司 | Continuous discharging ball-milling process for crystal powder |
| CN109705427A (en) * | 2018-11-06 | 2019-05-03 | 江苏全球康功能纺织品有限公司 | A kind of preparation process of anion material |
| CN111334098A (en) * | 2020-03-02 | 2020-06-26 | 华东理工大学 | Slurry with negative oxygen ion releasing and air purifying functions and preparation method and application thereof |
| CN111621188A (en) * | 2020-04-17 | 2020-09-04 | 杭州纳巍前沿科学技术研究院有限公司 | Preparation method of nano composite slurry |
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2002
- 2002-12-26 CN CN 02157796 patent/CN1253246C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333026C (en) * | 2005-05-02 | 2007-08-22 | 复旦大学 | Controlled released stably coating material capable of purifying air and preparation method thereof |
| CN1986473B (en) * | 2005-12-22 | 2010-05-05 | 深圳市海川实业股份有限公司 | Tourmaline powder modifying process |
| CN101450845B (en) * | 2007-11-29 | 2011-09-14 | 上海阳山材料科技有限公司 | High negative ion tourmaline powder and preparation method thereof |
| CN101857238B (en) * | 2009-04-08 | 2012-07-18 | 中国地质科学院郑州矿产综合利用研究所 | Preparation method of tourmaline superfine powder for spinning |
| CN102266945A (en) * | 2011-08-20 | 2011-12-07 | 陈登刚 | Ball-milling process and device for iron-based alloy powder |
| CN102409183B (en) * | 2011-10-31 | 2013-08-28 | 长沙矿冶研究院有限责任公司 | Gold extraction method by pre-oxidation and cyanide leaching of refractory gold concentrate |
| CN102409183A (en) * | 2011-10-31 | 2012-04-11 | 长沙矿冶研究院有限责任公司 | Gold extraction method by pre-oxidation and cyanide leaching of refractory gold concentrate |
| CN106000555A (en) * | 2016-05-31 | 2016-10-12 | 连云港海蓝研磨材料有限公司 | Continuous discharging ball-milling process for crystal powder |
| CN106000555B (en) * | 2016-05-31 | 2018-06-15 | 连云港海蓝研磨材料有限公司 | A kind of continuous discharge ball-milling technology of Crystal Powders |
| CN109705427A (en) * | 2018-11-06 | 2019-05-03 | 江苏全球康功能纺织品有限公司 | A kind of preparation process of anion material |
| CN111334098A (en) * | 2020-03-02 | 2020-06-26 | 华东理工大学 | Slurry with negative oxygen ion releasing and air purifying functions and preparation method and application thereof |
| CN111621188A (en) * | 2020-04-17 | 2020-09-04 | 杭州纳巍前沿科学技术研究院有限公司 | Preparation method of nano composite slurry |
| CN111621188B (en) * | 2020-04-17 | 2022-11-01 | 杭州纳巍前沿科学技术研究院有限公司 | Preparation method of nano composite slurry |
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