Method For Integral Recycling For Cathode Ray Tubes
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United States of America Patent
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Issued Date -
Mar 11, 2010
app pub date -
Jul 4, 2005
filing date -
Jul 4, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a method for integral recycling of cathode ray tubes characterized in that it enables glasses which compose said cathode ray tubes and luminophores deposited on an internal surface of screens to be recycled by associating the following steps: opening said cathode ray tubes by means of a laser source; dry cleaning by means of surface treatment agents; and recycling the luminophores by acid-base means in the presence of fluorides. Well-chosen association of a particular opening method, of a dry surface treatment and a hydrometallurgical treatment step of the luminophores powders results in a method enabling both protection of environment and of a workstation and a high material valorization rate.
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