SU138299A1 - The method of surface treatment of electroluminescent powder - Google Patents
The method of surface treatment of electroluminescent powderInfo
- Publication number
- SU138299A1 SU138299A1 SU675689A SU675689A SU138299A1 SU 138299 A1 SU138299 A1 SU 138299A1 SU 675689 A SU675689 A SU 675689A SU 675689 A SU675689 A SU 675689A SU 138299 A1 SU138299 A1 SU 138299A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- surface treatment
- powder
- electroluminescent powder
- solution
- electroluminescent
- Prior art date
Links
Description
Способ поверхностной обработки порошка электролгоминофора на основе сульфида цинка, активированного медью дл удалени внешнего сло сульфида меди с частиц электролюминофора, известен .A method for the surface treatment of an electromhomophor powder based on zinc sulfide activated by copper to remove the outer layer of copper sulfide from electroluminophore particles is known.
Предложен сцособ поверхностной обработки порошка электролюминофора , с целью удалени внешнего сло сульфида меди с частиц электролюминофора, заключающийс в обработке цорошка аммиачным раствором в присутствии окислител .A surface treatment method for the electroluminescent powder is proposed to remove the outer layer of copper sulphide from the electroluminescent particles, which consists in treating the powder with an ammonia solution in the presence of an oxidizing agent.
АммиаЧНый раствор содержит:Ammonium solution contains:
100 г/л NHs. 50 г/л СОз и оки1слитель (воздух, перекись водорода, персульфат аммони ).100 g / l NHs. 50 g / l CO2 and oxidant (air, hydrogen peroxide, ammonium persulfate).
Порошок электролюминофора загружаетс в емкость и заливаетс аммиачным раствором, который готовитс из карбоната аммони и аммиака.The electroluminescent powder is loaded into the container and poured with ammonia solution, which is prepared from ammonium carbonate and ammonia.
В раствор вводитс также персульфат аммони (из расчета 5% по весу), если он используетс в качестве окислител .Ammonium persulfate (at the rate of 5% by weight) is also added to the solution if it is used as an oxidizing agent.
Соотношение порошка IH раствора должно быть 1:3:4 ио весу.The ratio of powder IH solution should be 1: 3: 4 and its weight.
Суспензи электролюмино|фора в аммиачном растворе нагреваетс при умеренном перемешиваииИ до 60°. этой температуре обработка идет 2-3 час, если прореагированный раствор периодически мен етс на свежий через 20-30 мин. Если в качестве окислител используетс воздух, то процесс также ведетс при 60°, причем необходимо обеспечить наилучшей контакт суспензии с продуваемым через нее воздухом.The suspension of the electroluminescence in an ammonia solution is heated with moderate stirring to 60 °. This temperature is treated for 2-3 hours if the reacted solution periodically changes to fresh after 20-30 minutes. If air is used as an oxidizing agent, the process is also carried out at 60 °, and it is necessary to ensure the best contact of the suspension with the air blown through it.
При смене раствора через 20-30 млн обработка продолжаетс 3 час.When changing the solution after 20-30 million, the treatment lasts 3 hours.
В этом случае в аммиачный раствор вводитс тиосульфат натри в количестве 5-10 г1л.In this case, sodium thiosulfate in an amount of 5-10 g1l is added to the ammonia solution.
При использовании в качестве окислител перекиси водорода обработку можно вести при комнатной температуре. При этом переWhen used as an oxidizing agent for hydrogen peroxide, the treatment can be carried out at room temperature. At the same time
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU675689A SU138299A1 (en) | 1960-08-02 | 1960-08-02 | The method of surface treatment of electroluminescent powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU675689A SU138299A1 (en) | 1960-08-02 | 1960-08-02 | The method of surface treatment of electroluminescent powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU138299A1 true SU138299A1 (en) | 1960-11-30 |
Family
ID=48294458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU675689A SU138299A1 (en) | 1960-08-02 | 1960-08-02 | The method of surface treatment of electroluminescent powder |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU138299A1 (en) |
-
1960
- 1960-08-02 SU SU675689A patent/SU138299A1/en active
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