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Application filed by Львівське Мале Підприємство "Люмо", Львовское Малое Предприятие «Люмо»filedCriticalЛьвівське Мале Підприємство "Люмо"
Priority to UA94061612ApriorityCriticalpatent/UA15251A/en
Publication of UA15251ApublicationCriticalpatent/UA15251A/en
The invention relates to a method for regeneration of luminiscent materials and may be used for regeneration of a luminophor of blue luminiscence, which is used in production of color kinescope screens. The method for regeneration of the luminophor of blue luminescence comprises the processing of waste of luminophor production with hydrogen peroxide, suspension deposition, decantation of liquid phase, washing of the deposit and drying of it. At first the deposit is washed with 0.05-0.1 % solution of ammonium carbonate, then is washed out to neutral pH and additionally treated with 0.1-0.15 % zinc sulfate solution and 0.08-0.1% potassium silicate solution. After that the deposit is consequently washed with 0.01-0.015% citric acid solution and 10% solution of the C-10 emulsifier.
UA94061612A1993-05-281993-05-28METHOD FOR REGENARATION OF luminophor OF BLUE LUMINISCENCE
UA15251A
(en)