FIELD: manufactures of three color kinescope screens. SUBSTANCE: claimed process for regeneration of blue phosphor comprises treating its waste with hydrogen peroxide, precipitating slurry, decanting liquid phase, washing with water and drying the regenerated phosphor. Prior to precipitation, phosphor waste is treated with water with addition of ammonium carbonate in amount of 0.08-0.1% precipitated, the liquid phase is decanted, the phosphor is washed to neutral medium, treated under stirring with zinc sulfate or potassium silicate, washed with water with addition of citric acid in amount from 0.01-0.015% and emulsifier in amount from 0.1 to 0.15% to the weight of phosphor. EFFECT: more efficient regeneration process.
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FOR REGENERATION OF PHOSPHOR BASED ON EUROPIUM YTTRIUM ACTIVATED OXYSULFIDE | 1992 |
|
RU2082741C1 |
| METHOD FOR REGENERATION OF LUMINOPHOR HAVING GREEN COLORED LUMINESCENCE | 1992 |
|
RU2074876C1 |
| 0 |
|
SU265338A1 | |
| METHOD OF REGENERATION OF CATHODE LUMINOPHORE ON THE BASIS OF ZINC AND CADMIUM SULFIDE | 1989 |
|
SU1759021A1 |
| 0 |
|
SU470014A1 | |
| METHOD OF PREPARING OF PIGMENTED LUMINOPHORE ON YTTRIUM OXYSULFIDE-BASE WITH RED COLOR LUMINESCENCE | 0 |
|
SU1819906A1 |
| METHOD OF SURFACE TREATMENT OF CATHODOLUMINOPHORES ON THE BASIS OF ZINC SULFIDES OR ZINC AND CADMIUM | 0 |
|
SU1820912A3 |
| PROCESS FOR TREATMENT OF CATHODE-LUMINESCENT MATERIAL | 1990 |
|
RU2008317C1 |
| CHARGE FOR PRODUCTION OF SINGLE-COMPONENT ELECTRIC LUMINOPHOR OF VARYING LUMINESCENT COLOR ON BASE OF ZINC SULFIDE | 2006 |
|
RU2315798C1 |
| PROCESS FOR PRODUCING BLUE INORGANIC PIGMENTS | 0 |
|
SU939500A1 |
