CN1112420C - Red phosphor powder for high pressure mercury lamp - Google Patents
Red phosphor powder for high pressure mercury lamp Download PDFInfo
- Publication number
- CN1112420C CN1112420C CN98107675A CN98107675A CN1112420C CN 1112420 C CN1112420 C CN 1112420C CN 98107675 A CN98107675 A CN 98107675A CN 98107675 A CN98107675 A CN 98107675A CN 1112420 C CN1112420 C CN 1112420C
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- CN
- China
- Prior art keywords
- mercury lamp
- high pressure
- pressure mercury
- earth metal
- fluorescent material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention relates to red fluorescent powders for high pressure mercury lamps, which are obtained by modifying alkaline earth metal phosphate and are compound crystal power luminous bodies expressed by M3(PO4)2. nB2O3: Ce: Mn, wherein M can be one or more than one kind of Ca, Sr and Ba, B is used as a flux, and Ce and Mn are used as activators. The luminous body of the present invention has better light effect and colour development at 200 to 300 DEG C than those of conventional luminous bodies.
Description
The invention belongs to lamp luminescent material technical field.
At present, the fluorescent material that is used for both at home and abroad from the ballast high voltage mercury lamp mainly is with Bivalent Tin activated zinc phosphate, strontium (magnesium), that is: and (Sr, Zn)
3(PO
4)
2: Sn or (Sr, Mg)
3(PO
4)
2: Sn etc.Use the high voltage mercury lamp of this kind fluorescent material to need ball milling more than 80 hours when lamp preparation powder is starched, destroyed the luminescent properties of fluorescent material owing to being coated with.When 300 ℃ of left and right sides of working temperature, fluorescent material produces quencher, makes the light efficiency of mercury lamp, the decline of demonstration property.
The objective of the invention is application, improve the luminescent properties and the color developing of fluorescent material (body) by manganese, cerium co-activation alkaline-earth metal borophosphate.
Fluorescent material under long wave ultraviolet 3650A of the present invention excites is the compound that is expressed from the next, M
3(PO
4)
2NB
2O
3: Ce: Mn.
Wherein M is the crystal powder luminescent material of being made by a kind of or whole metallic element synthetic compound that is selected among Ca, Sr, the Ba;
Add the M of multiple metals such as Al, Na, Li, K, Si, Cl, B, non-metallic element formation
3(PO
4)
2NB
2O
3: Ce: Mn crystal powder luminescent material;
The add-on of activator Mn is 0.001 mole of % to the 10 mole of % that is equivalent to the metallic element that M represents;
The add-on of rare-earth activated dose of Ce is 0.001 mole of % to the 10 mole of % that is equivalent to the metallic element that M represents;
Boric acid, muriate such as Na, K, Li, the NH of the 1-10% weight that adds as fusing assistant
4Deng muriate.
Of the present invention by M
3(PO
4)
2NB
2O
3: the fluorescent material its preparation method that Ce: Mn represents such as following:
1, takes by weighing each component oxide or the salt of calculated amount;
2, uniform mixing is after Al is put in grinding
2O
3Sintering 1 hour in 1000 ℃ of air in the crucible;
3, take out cooling after, the porphyrize Al that packs into
2O
3In the crucible;
4, after adding quantitative active carbon granule on the material, add a cover into 1160 ℃ of constant temperature 1-1.5 of stove hours;
5, take out postcooling to room temperature and obtain white solid, behind crushing screening, promptly get fluor of the present invention.
Disclosed by the invention with M
3(PO
4)
2NB
2O
3: the compound that Ce: Mn represents, M is selected from least a above metallic element in calcium, strontium, the barium, and the red light of having added alkali earth metal phosphate fluorescent material emission 6300A wavelength under 3650A is ultraviolet ray excited of quantitative muriate (metal or nonmetal) formation, because ball milling 10 hours only during slurrying, be used on the mercury lamp when 300 ℃ of left and right sides than (Sr, Zn)
3(PO
4)
2: Sn or (Sr, Mg)
3(PO
4)
2: Sn improves the luminous intensity more than 30%, has improved the light efficiency and the color developing of lamp.
Accompanying drawing 1 for fluorescent material of the present invention with (Sr, Zn)
3(PO
4)
2: the curve of Sn fluorescent material (routine) relative luminous intensity and timing relationship.
As seen from the figure, fluorescent material of the present invention be higher than 250 ℃ of non-dawn of luminous intensity do not descend on the contrary in rising trend, Have at 200-300 ℃ to be equivalent under the room temperature 2 times luminous intensity, and low pressure mercury lamp is operated in about 300 ℃ exactly.
Following table is fluorophor of the present invention and (Sr, Zn)3(PO
4)
2: Sr fluorophor temperature characterisitic contrast table, can from table See that fluorophor of the present invention does not descend in relative brightness more than 300 ℃, rise on the contrary.
Be used in when ballast high-pressure sodium lamp (125W) fluorescent material M of the present invention3(PO
4)
2·nB
2O
3: the colour rendering index that Ce: Mn records after being coated with lamp is Ra=53.7, and (Sr, Zn)3(PO
4)
2: Sn or (Sr, Mg)3(PO
4)
2: Sn is through being coated with The colour rendering index that records behind the lamp is Ra=40.
Fluorophor M of the present invention3(PO
4)
2·nB
2O
3: Ce: Mn temperature characterisitic
| Temperature relative degree brightness | Room temperature | 100 | 200 | 300 | 350 | ||
| The powder sample | | 100 | 178.8 | 202.1 | 160.7 | 141.4 | |
| Fluorophor of the | 100 | 111.5 | 154.3 | 243.8 | 271.1 | ||
The embodiment of the invention is as follows:
Embodiment 1:
Press the column weight amount and take by weighing material:
SrCO
373.8 gram
CaCO
341.0 gram
(NH
4)
2HPO
4105.6 gram
CeO 8.66 grams
MnCO
33.44 gram
H
3BO
412.4 gram
NH
4Cl 35 grams
After uniform mixing ground, Al packed into above-mentioned material
2O
3Sintering 1 hour in 1000 ℃ of air in the crucible takes out the cooling back porphyrize Al that packs into
2O
3In the crucible, after adding quantitative active carbon granule on the material, add a cover, take out postcooling to room temperature and promptly obtain the white solid luminophore,, obtain M after sieving through pulverizing into 1160 ℃ of constant temperature 1-1.5 of stove hours
3(PO
4)
2NB
2O
3: Ce: Mn white crystals luminescenjt powder.
Embodiment 2:
Material consists of:
SrCO
373.8 gram
BaCO
381.29 gram
(NH
4)
2HPO
4105.6 gram
CeO 8.66 grams
MnCO
33.44 gram
H
3BO
412.4 gram
NH
4Cl 35 grams
Fire the step condition with embodiment 1
Embodiment 3:
Material consists of:
SrCO
373.8 gram
CaCO
330 grams
BaCO
323 grams
(NH
4)
2HPO
4105.6 gram
CeO 8.66 grams
MnCO
33.44 gram
H
3BO
412.4 gram
NH
4Cl 35 grams
Fire the step condition with embodiment 1
Claims (3)
1, red phosphor powder for high pressure mercury lamp, it is the improvement of alkali earth metal phosphate powder luminescent material, it is characterized in that it is the coactivated alkaline-earth metal borophosphate of manganese, cerium, the amount of the boric acid that adds as fusing assistant accounts for the 1-10% weight percentage of charging capacity, and ammonium chloride accounts for the 11.9-12.5% weight percentage of charging capacity.
2,, it is characterized in that 0.001 mole of % to 10 mole of % of the suitable alkali earth metal of content of activator and coactivator Mn and Ce according to the fluorescent material of claim 1.
3,, it is characterized in that exciting down, 200-300 ℃ of luminous intensity that has under the suitable room temperature 2 times at long wave ultraviolet 3650A according to the fluorescent material of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107675A CN1112420C (en) | 1998-04-24 | 1998-04-24 | Red phosphor powder for high pressure mercury lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98107675A CN1112420C (en) | 1998-04-24 | 1998-04-24 | Red phosphor powder for high pressure mercury lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1233642A CN1233642A (en) | 1999-11-03 |
| CN1112420C true CN1112420C (en) | 2003-06-25 |
Family
ID=5219427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98107675A Expired - Fee Related CN1112420C (en) | 1998-04-24 | 1998-04-24 | Red phosphor powder for high pressure mercury lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1112420C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7056451B2 (en) * | 2004-01-21 | 2006-06-06 | General Electric Company | Phosphors containing boron and rare-earth metals, and light sources incorporating the same |
| CN100356503C (en) * | 2004-08-06 | 2007-12-19 | 于首成 | Electronic energy-saving health-care fluoresent lamp |
| CN101649200B (en) * | 2009-09-03 | 2014-05-28 | 常熟市江南荧光材料有限公司 | Synthesis method of luminescent material for insect-killing trapping lamp |
| CN106905967B (en) * | 2017-02-20 | 2019-04-09 | 中国计量大学 | A kind of borophosphate green emitting phosphor and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152018A (en) * | 1995-07-17 | 1997-06-18 | 北京市丰台区宏业涂装辅料厂 | Long-persistence and high-brightness luminous material and its prepn |
-
1998
- 1998-04-24 CN CN98107675A patent/CN1112420C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152018A (en) * | 1995-07-17 | 1997-06-18 | 北京市丰台区宏业涂装辅料厂 | Long-persistence and high-brightness luminous material and its prepn |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1233642A (en) | 1999-11-03 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |