CN105505391A - Method for manufacturing pyrophosphate blue fluorescent powder for high-photosynthetic-efficiency plant growth lamp - Google Patents
Method for manufacturing pyrophosphate blue fluorescent powder for high-photosynthetic-efficiency plant growth lamp Download PDFInfo
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- CN105505391A CN105505391A CN201511019014.9A CN201511019014A CN105505391A CN 105505391 A CN105505391 A CN 105505391A CN 201511019014 A CN201511019014 A CN 201511019014A CN 105505391 A CN105505391 A CN 105505391A
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
- C09K11/71—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing alkaline earth metals
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Abstract
The invention provides a method for manufacturing pyrophosphate blue fluorescent powder for a high-photosynthetic-efficiency plant growth lamp. The method comprises the following steps: firstly, screening SrHPO4, CaCO3, (NH4)2HPO4, SnO, BaCO3 and 0LiF, mixing the materials in a mixer, and pre-burning the materials in a box-type oxidation furnace; grinding and screening the prepared fluorescent powder agglomates, and putting the fluorescent powder in an alumina crucible; putting the alumina crucible in a larger alumina crucible, and filling the larger alumina crucible with activated carbon; sintering at a high temperature in the box-type furnace in the hydrogen reduction atmosphere; and cooling to obtain a sintered finished product which is a primary product of the pyrophosphate blue fluorescent powder for a high-photosynthetic-efficiency plant growth lamp; and screening the fluorescent powder, and dispersing the fluorescent powder in an airstream dispersion machine to obtain a finished product of pyrophosphate dark red fluorescent powder for a high-photosynthetic-efficiency plant growth lamp. The fluorescent powder has high luminescence efficiency at 460nm, has the granularity approaching sphere shape, has excellent using property in lamp tube coating, and nearly generates no wastewater in the manufacturing process so as to reduce environmental pollution.
Description
Technical field
The present invention relates to a kind of manufacture method of fluorescent material, particularly a kind of manufacture method of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder.
Background technology
In recent years, along with people are to the progressively raising of lighting requirement, the CFL lighting of special industry is more and more subject to the attention of all trades and professions.Especially at Field of Planting, the demand of plant growth lamp gets more and more, and this provides suitable electricity-saving lamp to go to meet the demand of whole industry with regard to needing us.In the manufacture of plant growth lamp, often can use strontium pyrophosphate eatin blue fluorescent material.The strontium pyrophosphate eatin blue fluorescent material manufactured in prior art is low at the luminous light efficiency of 460nm, and the granularity of fluorescent material is irregular, does not have service performance and can produce waste water in process of production, cause environmental pollution in fluorescent tube coating.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of manufacture method of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder, make the main emission peak of strontium pyrophosphate eatin blue fluorescent material at about 460nm, luminous light efficiency is high, the granularity of fluorescent material is tending towards ball-type, has more excellent service performance, thus meet the demand of plant-growth to blue portion light in fluorescent tube coating, produce waste water hardly, reduce environmental pollution.
To achieve these goals, the present invention adopts following technical scheme:
A manufacture method for specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder, comprises the steps:
Step one, dry method batch mixing: be first the SrHPO of 2.00-2.50mol by molar fraction
4, 0-0.50mol CaCO
3, 0.01-1.00mol (NH
4)
2hPO
4, 0.01-0.10mol the BaCO of SnO, 0.01-0.10mol
3, 0.01-0.1mol LiF respectively cross 100 mesh sieves, remix joins in mixer together, and add rubber sphere to adjust the difference of specific gravity between differing materials, batch mixing 6 hours, what obtain pyrophosphate salt blue colour fluorescent powder burns till batching;
Step 2, once oxidation pre-burning: the batching of burning till of pyrophosphate salt blue colour fluorescent powder is put into alumina crucible, alumina crucible is put into the box-type furnace under oxidizing atmosphere, calcination 3-6 hour at the temperature of 1000-1100 DEG C, cooledly burns till the pre-burning product that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 3, secondary reduction burn till: put into alumina crucible after being pulverized by the pre-burning product of specular removal plant growth lamp blue colour fluorescent powder, again alumina crucible is put into larger alumina crucible, gac is filled up in large alumina crucible, put into box atmosphere reduction furnace, the flow of nitrogen is at 0.05-0.1 cubic meter per hour, the flow of hydrogen is at 0.01-0.05 cubic meter per hour, calcination 3-8 hour under the high temperature of 1100-1140 DEG C, cooledly burns till the primary product powder agglomates that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 4, dispersion: by the primary product powder agglomates of specular removal plant growth lamp blue colour fluorescent powder after pulverizing, cross 100 order nylon mesh, obtain the primary product of specular removal plant growth lamp blue colour fluorescent powder, by the primary product of specular removal plant growth lamp blue colour fluorescent powder through air dispersion machine, after disperseing under the pressure of 3.0-5.0Mpa, be specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder.
The diameter of the rubber sphere described in step one is 50-100mm.
Box furnace described in step 3 is the firing furnace of reducing atmosphere.
The present invention has the following advantages: one is have good source material mixture ratio example, makes the fluorescent material finished product after burning till high at the luminous light efficiency of 460nm, the specular removal plant growth lamp of the preparation as shown in Figure 3 luminescent spectrum figure of pyrophosphate salt blue colour fluorescent powder.Two is the modes of burying carbon reductive firing after adopting pre-burning again, the granularity of fluorescent material is made more to be tending towards ball-type, in fluorescent tube coating, there is more excellent service performance, shown in the scanning electron microscopic observation figure of the specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder prepared as Fig. 1, Fig. 2 the present invention.Three is the introducings not using pure water in whole manufacturing processed, makes the generation almost not having waste water in the manufacturing processed of fluorescent material.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscopic observation figure of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder prepared by the present invention.
Fig. 2 is the scanning electron microscopic observation figure of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder prepared by the present invention.
Fig. 3 is the luminescent spectrum figure of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder prepared by the present invention.
Embodiment
The present invention is further illustrated below by embodiment.
Embodiment one:
A manufacture method for specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder, comprises the steps:
Step one, dry method batch mixing: be the SrHPO of 2.00mol by molar fraction
4, 0.50mol CaCO
3, 1.00mol (NH
4)
2hPO
4, 0.02mol the BaCO of SnO, 0.01mol
3, 0.01mol LiF first cross after 100 mesh sieves, then drop in mixer and mix, add rubber sphere to adjust the difference of specific gravity between differing materials, batch mixing 6 hours, what obtain pyrophosphate salt blue colour fluorescent powder burns till batching;
Step 2, once oxidation pre-burning: the batching of burning till of pyrophosphate salt blue colour fluorescent powder is put into alumina crucible, alumina crucible is put into the box-type furnace under oxidizing atmosphere, calcination 3 hours at the temperature of 1000 DEG C, cooledly burns till the pre-burning product that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 3, secondary reduction burn till: put into alumina crucible after being pulverized by the pre-burning product of specular removal plant growth lamp blue colour fluorescent powder, again alumina crucible is put into larger alumina crucible, gac is filled up in large alumina crucible, put into box atmosphere reduction furnace, the flow of nitrogen is at 0.05 cubic metre per hour, the flow of hydrogen is at 0.02 cubic metre per hour, calcination 3 hours under the high temperature of 1100 DEG C, cooledly burns till the primary product powder agglomates that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 4, dispersion: by the primary product powder agglomates of specular removal plant growth lamp blue colour fluorescent powder after pulverizing, cross 100 order nylon mesh, obtain the primary product of specular removal plant growth lamp blue colour fluorescent powder, by the primary product of specular removal plant growth lamp blue colour fluorescent powder through air dispersion machine, after disperseing under the pressure of 3.0Mpa, be specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder.This fluorescent material brightness 102, granularity 7.3 microns
Embodiment two:
A manufacture method for specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder, comprises the steps:
Step one, dry method batch mixing: be the SrHPO of 2.20mol by molar fraction
4, 0.25mol CaCO
3, 0.50mol (NH
4)
2hPO
4, 0.05mol the BaCO of SnO, 0.05mol
3, 0.05mol LiF first cross after 100 mesh sieves, then drop in mixer and mix, add rubber sphere to adjust the difference of specific gravity between differing materials, batch mixing 6 hours, what obtain pyrophosphate salt blue colour fluorescent powder burns till batching;
Step 2, once oxidation pre-burning: the batching of burning till of pyrophosphate salt blue colour fluorescent powder is put into alumina crucible, alumina crucible is put into the box-type furnace under oxidizing atmosphere, calcination 3 hours at the temperature of 1050 DEG C, cooledly burns till the pre-burning product that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 3, secondary reduction burn till: put into alumina crucible after being pulverized by the pre-burning product of specular removal plant growth lamp blue colour fluorescent powder, again alumina crucible is put into larger alumina crucible, gac is filled up in large alumina crucible, put into box atmosphere reduction furnace, the flow of nitrogen is at 0.07 cubic metre per hour, the flow of hydrogen is at 0.03 cubic metre per hour, calcination 3 hours under the high temperature of 1120 DEG C, cooledly burns till the primary product powder agglomates that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 4, dispersion: by the primary product powder agglomates of specular removal plant growth lamp blue colour fluorescent powder after pulverizing, cross 100 order nylon mesh, obtain the primary product of specular removal plant growth lamp blue colour fluorescent powder, by the primary product of specular removal plant growth lamp blue colour fluorescent powder through air dispersion machine, after disperseing under the pressure of 4.0Mpa, be specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder.This fluorescent material brightness 106, granularity 6.5 microns.
Embodiment three:
A manufacture method for specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder, comprises the steps:
Step one, dry method batch mixing: be the SrHPO of 2.50mol by molar fraction
4, 0mol CaCO
3, 0.10mol (NH
4)
2hPO
4, 0.10mol the BaCO of SnO, 0.10mol
3, 0.01mol LiF first cross after 100 mesh sieves, then drop in mixer and mix, add rubber sphere to adjust the difference of specific gravity between differing materials, batch mixing 6 hours, what obtain pyrophosphate salt blue colour fluorescent powder burns till batching;
Step 2, once oxidation pre-burning: the batching of burning till of pyrophosphate salt blue colour fluorescent powder is put into alumina crucible, alumina crucible is put into the box-type furnace under oxidizing atmosphere, calcination 3 hours at the temperature of 1100 DEG C, cooledly burns till the pre-burning product that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 3, secondary reduction burn till: put into alumina crucible after being pulverized by the pre-burning product of specular removal plant growth lamp blue colour fluorescent powder, again alumina crucible is put into larger alumina crucible, gac is filled up in large alumina crucible, put into box atmosphere reduction furnace, the flow of nitrogen is at 0.10 cubic metre per hour, the flow of hydrogen is at 0.05 cubic metre per hour, calcination 3 hours under the high temperature of 1140 DEG C, cooledly burns till the primary product powder agglomates that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 4, dispersion: by the primary product powder agglomates of specular removal plant growth lamp blue colour fluorescent powder after pulverizing, cross 100 order nylon mesh, obtain the primary product of specular removal plant growth lamp blue colour fluorescent powder, by the primary product of specular removal plant growth lamp blue colour fluorescent powder through air dispersion machine, after disperseing under the pressure of 5.0Mpa, be specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder.This fluorescent material brightness 105, granularity 7.5 microns.
Claims (3)
1. a specular removal plant growth lamp manufacture method for pyrophosphate salt blue colour fluorescent powder, is characterized in that, comprise the steps:
Step one, dry method batch mixing: be first the SrHPO of 2.00-2.50mol by molar fraction
4, 0-0.50mol CaCO
3, 0.01-1.00mol (NH
4)
2hPO
4, 0.01-0.10mol the BaCO of SnO, 0.01-0.10mol
3, 0.01-0.1mol LiF respectively cross 100 mesh sieves, remix joins in mixer together, and add rubber sphere to adjust the difference of specific gravity between differing materials, batch mixing 6 hours, what obtain pyrophosphate salt blue colour fluorescent powder burns till batching;
Step 2, once oxidation pre-burning: the batching of burning till of pyrophosphate salt blue colour fluorescent powder is put into alumina crucible, alumina crucible is put into the box-type furnace under oxidizing atmosphere, calcination 3-6 hour at the temperature of 600-700 DEG C, cooledly burns till the pre-burning product that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 3, secondary reduction burn till: put into alumina crucible after being pulverized by the pre-burning product of specular removal plant growth lamp blue colour fluorescent powder, again alumina crucible is put into larger alumina crucible, gac is filled up in large alumina crucible, put into box atmosphere reduction furnace, the flow of nitrogen is at 0.05-0.1 cubic meter per hour, the flow of hydrogen is at 0.01-0.05 cubic meter per hour, calcination 3-8 hour under the high temperature of 1100-1140 DEG C, cooledly burns till the primary product powder agglomates that namely product are specular removal plant growth lamp blue colour fluorescent powders;
Step 4, dispersion: by the primary product powder agglomates of specular removal plant growth lamp blue colour fluorescent powder after pulverizing, cross 100 order nylon mesh, obtain the primary product of specular removal plant growth lamp blue colour fluorescent powder, by the primary product of specular removal plant growth lamp blue colour fluorescent powder through air dispersion machine, after disperseing under the pressure of 3.0-5.0Mpa, be specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder.
2. the manufacture method of a kind of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder according to claim 1, it is characterized in that, in described step one, the diameter of rubber sphere is 50-100mm.
3. the manufacture method of a kind of specular removal plant growth lamp pyrophosphate salt blue colour fluorescent powder according to claim 1, it is characterized in that, the box furnace in described step 3 is the firing furnace of reducing atmosphere.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019014.9A CN105505391A (en) | 2015-12-30 | 2015-12-30 | Method for manufacturing pyrophosphate blue fluorescent powder for high-photosynthetic-efficiency plant growth lamp |
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|---|---|---|---|
| CN201511019014.9A CN105505391A (en) | 2015-12-30 | 2015-12-30 | Method for manufacturing pyrophosphate blue fluorescent powder for high-photosynthetic-efficiency plant growth lamp |
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| CN105505391A true CN105505391A (en) | 2016-04-20 |
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|---|---|---|---|
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162251A (en) * | 1981-03-31 | 1982-10-06 | Iwasaki Electric Co Ltd | Fluorescent lamp |
| CN101705092A (en) * | 2009-10-30 | 2010-05-12 | 彩虹集团电子股份有限公司 | Manufacturing method of strontium-magnesium-tin phosphate red fluorescent powder used for high-color developing energy-saving lamp |
| CN102146285A (en) * | 2011-01-11 | 2011-08-10 | 湖南信多利新材料有限公司 | Blue fluorescent powder with 460nm main emission peak, and preparation method and application thereof |
| CN103937496A (en) * | 2014-02-11 | 2014-07-23 | 辽宁金锚实业有限公司 | Preparation method of phosphoric acid magnesium strontium calcium tin fluorescent powder with high color rendering |
-
2015
- 2015-12-30 CN CN201511019014.9A patent/CN105505391A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162251A (en) * | 1981-03-31 | 1982-10-06 | Iwasaki Electric Co Ltd | Fluorescent lamp |
| CN101705092A (en) * | 2009-10-30 | 2010-05-12 | 彩虹集团电子股份有限公司 | Manufacturing method of strontium-magnesium-tin phosphate red fluorescent powder used for high-color developing energy-saving lamp |
| CN102146285A (en) * | 2011-01-11 | 2011-08-10 | 湖南信多利新材料有限公司 | Blue fluorescent powder with 460nm main emission peak, and preparation method and application thereof |
| CN103937496A (en) * | 2014-02-11 | 2014-07-23 | 辽宁金锚实业有限公司 | Preparation method of phosphoric acid magnesium strontium calcium tin fluorescent powder with high color rendering |
Non-Patent Citations (1)
| Title |
|---|
| 彭怀玉等: "碳热还原氮化法合成稀土掺杂氮系荧光粉", 《材料导报》 * |
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Application publication date: 20160420 |