PL44484B1 - - Google Patents
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- Publication number
- PL44484B1 PL44484B1 PL44484A PL4448457A PL44484B1 PL 44484 B1 PL44484 B1 PL 44484B1 PL 44484 A PL44484 A PL 44484A PL 4448457 A PL4448457 A PL 4448457A PL 44484 B1 PL44484 B1 PL 44484B1
- Authority
- PL
- Poland
- Prior art keywords
- aluminum fluoride
- fluorides
- emission
- color
- intensity
- Prior art date
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- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims description 5
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 150000002222 fluorine compounds Chemical class 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims 1
- 150000002739 metals Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012190 activator Substances 0.000 description 3
- -1 alkaline earth Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- LVEULQCPJDDSLD-UHFFFAOYSA-L cadmium fluoride Chemical class F[Cd]F LVEULQCPJDDSLD-UHFFFAOYSA-L 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 101710095439 Erlin Proteins 0.000 description 1
- 206010051602 Laziness Diseases 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Description
RZECZYPOSPOLITEJ LUDOWA) OPIS PATENTOWY Nr 44484 VEB Berliner G^hlampen — Werk B.erlin, Niemiecka Republika Demokratyczna Wej/G* KI. 22 f, 15 cale, ife§ ty Sposób wytwarzania substancji swiecacych na bazie fluoroglinianu Patent trwa od dnia 12 wrzesnia 1957 r.Wynalazek dotyczy sposobu wytwarzania kom¬ pleksów fluoro-glinowych, które pobudzone za pomoca promieni katodowych i ultrafioletowych, jak tez za pomoca elektrycznego pola emituja w zakresie swiatla widzialnego.Zwiazki lumimescencyjne znane sa w wielu odmianach i znajduja coraz wieksze zastosowa¬ nie w lampach telewizyjnych, oslonach radaro¬ wych oraz w technice oswietleniowej w lam¬ pach wyladowczych. % Sposobem wedlug wynalazku uzyskuje sie przez zmieszanie fluorku glinowego z fluorkami alkaliów, ziem alkalicznych, cynku i kadmu substancje swiecace o róznej intnesywnosci i barwie emisji.Stechiometryczny sklad tych zwiazków odpo¬ wiada wzorowi wystepujacego w przyrodzie kriolitu: #a8 AIF& przy czym Na zastepuje sie metalami jednowartosciowymi (Me1) np. Li, K albo metalami dwuwartosciowymi (Me1') np. Be, Mg, Ca, Sr, Zn, Cd, lub mieszaninami tych pier¬ wiastków.Ogólne wzory przedstawiaja sie nastepujaco: Me'8 [AlFfl], Me"8, [Al F62], {Me1, Me") [Al FJ.Przez zmiane molowego stosunku fluorku gli¬ nowego do fluorków tych jedno lub dwuwarto- sciowych metali nastepuja zmiany w intensyw¬ nosci i barwie emisji., Te wszystkie zwiazki staja sie zdolne do lu- minescencji jednak dopiero po dodaniu tak zwa¬ nych aktywatorów, zwlaszcza zwiazków metali np. fluorków, tlenków albo weglanów Pb, Ti, Ce i innych ziem rzadkich, U, Mn itd., jak tez mieszanin tych aktywatorów.Sposób wedlug wynalazku polega na tym, ze w wysokim stopniu oczyszczone fluorki alka¬ liów, ziem alkalicznych, cynku i kadmu miesza sie przez zmielenie w mlynie kulowym z flu¬ orkiem glinowym albo fluorkiem amonowo- -glinowym z aktywatorami w ilosci 0,1—15*/0.Substancje swiecace o tym samym skladzie otrzymuje sie przez rozpuszczenie w kwasie fluorowodorowym odpowiednich weglanów, tlenków lub wodorotlenków z nastepujacym po tym odparowaniem. Nastepuje pózniej procesprazenia trwajacy co najmniej 15 minut w tem¬ peraturze 700—1200°C, który przeprowadza sie w zamknietych tyglach na powietrzu, wzglednie w atmosferze azotu. Spieczony albo stopiony produkt prazenia miele sie i odsiewa ziarna o pozadanej wielkosci.Na ogól dodatki topników nie sa potrzebne z powodu stosunkowo niskiej temperatury top¬ nienia,^Jcompleksów fluorkowo-glinowych.Pr^rfelad. Ca9 (AIF6)2. Ce, Mn.Substancje podstawowa skladajaca sie z 73,65% Ca Ft i .26,35% Al F8 zadaje sie 5—15% Ce w postaci szczawianu i 2—6% Mn w po¬ staci weglanu, a po jednogodzinnym mieleniu prazy przez 10—30 minut w temperaturze 800—1000^C na powietrzu albo w srodowisku gazu obojetnego. Produkt przy pobudzaniu 2337 A° emituje w zólto-zielonym zakresie wid¬ ma. PLREPUBLIC OF PEOPLE) PATENT DESCRIPTION No. 44484 VEB Berliner G ^ hlampen - Werk B.erlin, German Democratic Republic of Wej / G * KI. 22 f, 15 inches, ife The method of producing luminescent substances based on fluoroaluminate The patent was valid from September 12, 1957. The fields they emit in the visible light range. Lumimescence compounds are known in many varieties and are being used more and more in television lamps, radar shields and in lighting technology in discharge lamps. The method according to the invention is obtained by mixing aluminum fluoride with alkali, alkaline earth, zinc and cadmium fluorides of illuminants of different intensity and color of emission. The stoichiometric composition of these compounds corresponds to the formula of the natural cryolite: # a8 AIF is replaced by Na monovalent metals (Me1) e.g. Li, K or divalent metals (Me1 ') e.g. Be, Mg, Ca, Sr, Zn, Cd, or mixtures of these elements. General formulas are as follows: Me'8 [AlFfl] , Me "8, [Al F62], {Me1, Me") [Al FJ. By changing the molar ratio of aluminum fluoride to fluorides of these monovalent or divalent metals, there are changes in the intensity and color of the emission. However, the compounds become amenable to laziness only after the addition of so-called activators, in particular metal compounds, for example fluorides, oxides or carbonates Pb, Ti, Ce and other rare earths, U, Mn, etc., as well as mixtures of these activators. The method according to the invention consists in however, the highly purified alkali, alkaline earth, zinc and cadmium fluorides are mixed by grinding in a ball mill with aluminum fluoride or ammonium aluminum fluoride with activators in an amount of 0.1-15%. Luminous substances of the same composition are obtained by dissolving in hydrofluoric acid the corresponding carbonates, oxides or hydroxides followed by evaporation. The burnout then takes place, which lasts at least 15 minutes at a temperature of 700 ° -1200 ° C., and is carried out in closed crucibles in air or under a nitrogen atmosphere. The sintered or molten product of the roasting is ground and screened out of the desired grain size. In general, no flux additions are needed because of the relatively low melting point of aluminum fluoride complexes. Prfelad. Ca9 (AIF6) 2. Ce, Mn. Basic substance consisting of 73.65% Ca Ft and 26.35% Al F8, 5-15% Ce as oxalate and 2-6% Mn in the form of carbonate are added, and after grinding the prime for 1 hour for 10-30 minutes at 800-1000 ° C in air or in an inert gas environment. The product, at 2337 A ° excitation, emits in the yellow-green range of the spectrum. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL44484B1 true PL44484B1 (en) | 1961-04-15 |
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