PL164779B1 - The method of obtaining pure, double sodium-lithium orthophosphate - Google Patents
The method of obtaining pure, double sodium-lithium orthophosphateInfo
- Publication number
- PL164779B1 PL164779B1 PL29021491A PL29021491A PL164779B1 PL 164779 B1 PL164779 B1 PL 164779B1 PL 29021491 A PL29021491 A PL 29021491A PL 29021491 A PL29021491 A PL 29021491A PL 164779 B1 PL164779 B1 PL 164779B1
- Authority
- PL
- Poland
- Prior art keywords
- sodium
- orthophosphate
- hours
- obtaining pure
- yttrium
- Prior art date
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- Luminescent Compositions (AREA)
Abstract
Sposób otrzymywania czystego, podwójnego ortofosforanu sodowo- itrowego polegający na reakcji związków sodu z ortofosforanem itru w podwyższonej temperaturze, znamienny tym, że mieszaninę pirofosforanu sodu, ortofosforanu itru i węglanu sodu w stosunku molowym 1:2:1 ogrzewa się w temperaturze od 973 do 1073 K w ciągu 2 godzin, rozciera się i wygrzewa w temperaturze 1173 K w czasie 250 godzin.A method for obtaining pure double sodium-yttrium orthophosphate consisting in the reaction of sodium compounds with yttrium orthophosphate at an elevated temperature, characterized in that a mixture of sodium pyrophosphate, yttrium orthophosphate and sodium carbonate in a molar ratio of 1:2:1 is heated at a temperature of 973 to 1073 K for 2 hours, triturated and annealed at a temperature of 1173 K for 250 hours.
Description
Przedmiotem wynalazku jest sposób otrzymywania czystego, podwójnego ortofosforanu sodowo-ltrowego o wzorze Na3Y/PO4/2.The present invention relates to a process for the preparation of pure, double-sodium orthophosphate ltrowego formula Na3Y / PO 4/2.
Znany jest sposób otrzymywania podwójnego ortofosforanu sodowo-itrowego Na3Y/PO*^ na drodze bezpośredniej syntezy z ortofosforanu itru YPO^ i ortofosforanu sodu Na3PO^ w temperaturze 1223 K w reakcji przebiegającej wiele godzin /Zimina G.W. et al.Inorg.Mater.35 s.2134,1990./.There is known a method of obtaining double sodium-yttrium orthophosphate Na3Y / PO * ^ by direct synthesis from yttrium YPO ^ orthophosphate and sodium orthophosphate Na3PO ^ at a temperature of 1223 K in a reaction lasting many hours / Zimina G.W. et al. Inorg. Material 35 pp. 2134, 1990. /.
Sposób według wynalazku polega na tym, że mieszaninę pirofosforanu sodu Na4P2O7, ortofosforanu itru YPO^ i węglanu sodu w stosunku molowym 1:2:1 ogrzewa się wstępnie w zakresie temperatur od 973 do 1073 K przez 2 godziny w celu rozłożenia ^2^3 do Na2O i CO?. Następnie otrzymany spiek rozciera się i wygrzewa się nadal w temperaturze 1173 K przez 250 godzin.The method according to the invention consists in that the mixture of sodium pyrophosphate Na 4 P 2 O 7 , yttrium orthophosphate YPO 4 and sodium carbonate in a molar ratio of 1: 2: 1 is preheated in the temperature range from 973 to 1073 K for 2 hours in order to decompose it. ^ 3 to Na2O and CO ?. The sintered material was then ground and further annealed at 1173 K for 250 hours.
W rezultacie uzyskuje się wysokiej czystości podwójny ortofosforan sodowo-itrowy Na3Y/PO^/2.The result is a high purity Na3Y / PO4 / 2 double sodium-yttrium orthophosphate.
Podwójny ortofosforan sodowo-itrowy znajduje zastosowanie jako materiał laserowy i luminofor.Double sodium-yttrium orthophosphate is used as a laser material and phosphor.
Przykład. W moździerzu agatowym roztarto 0,38222 g pirofosforanu sodu Na*P2O7 i 0,52860 g ortofosforanu itru YPO4 oraz 1,52860 g węglanu sodu Na2CO3. Mieszaninę umieszczono w tyglu platynowym i ogrzewano w piecu kantalowym w temperaturze 973 K przez 1 godzinę a następnie przez 1 godzinę w temperaturze 1073 K. Otrzymany spiek roztarto, spastylkouano i wygrzewano w temperaturze 1173 K przez 250 godzin.Example. 0.38222 g of sodium pyrophosphate Na * P2O7 and 0.52860 g of yttrium orthophosphate YPO4 and 1.52860 g of sodium carbonate Na2CO3 were ground in an agate mortar. The mixture was placed in a platinum crucible and heated in a cantalum furnace at 973 K for 1 hour and then for 1 hour at 1073 K. The obtained sinter was triturated, pasted and baked at 1173 K for 250 hours.
Cały proces można ująć w postaci następującego równania reakcji:The entire process can be expressed as the following reaction equation:
Na4P2O? + YPO4 + Na2O = 2 Na3Y/P04/2On 4 P 2 O ? YPO4 + + Na2O = 2 Na3Y / P0 4/2
Analiza rentgenograficzna i spektroskopowa IR wykazały obecność tylko jednej fazy a mianowicie Na3Y/PO4/2. Na szlifie stopionej próbki, oglądanej pod mikroskopem, widoczne są jednorodne kryształy Na3Y/PO^/2.X-ray and IR spectroscopic analysis showed the presence of only one phase, namely Na3Y / PO4 / 2. Homogeneous Na3Y / PO ^ / 2 crystals are visible on the cut of the melted sample when viewed under a microscope.
Departament Wydawnictw UP RP. Nakład 90 egz.Publishing Department of the UP RP. Circulation of 90 copies
Cena 10 000 złPrice: PLN 10,000
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL29021491A PL164779B1 (en) | 1991-05-09 | 1991-05-09 | The method of obtaining pure, double sodium-lithium orthophosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL29021491A PL164779B1 (en) | 1991-05-09 | 1991-05-09 | The method of obtaining pure, double sodium-lithium orthophosphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL290214A2 PL290214A2 (en) | 1992-02-10 |
| PL164779B1 true PL164779B1 (en) | 1994-10-31 |
Family
ID=20054577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL29021491A PL164779B1 (en) | 1991-05-09 | 1991-05-09 | The method of obtaining pure, double sodium-lithium orthophosphate |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL164779B1 (en) |
-
1991
- 1991-05-09 PL PL29021491A patent/PL164779B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL290214A2 (en) | 1992-02-10 |
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