ON WHAT WE FOCUS

ON WHAT WE FOCUS

PDP Phosphor

 Based on our more than 20 years experiences on phosphor research and production as well as the modernized equipment available in the lab and a competent research team, Yuelong has begun research and development in the PDP phosphor area since 1996. Now Yuelong's PDP phosphor is under final evaluation stage by a PDP maker. Further more, a pilot line is ready for production.

Zirconia-based ceramic material and its application

    Rare earth-based catalytic material for auto's exhaust gas purification. Cerium-zirconium oxide is a new composite material, jointly developed with Tongji University features an extremely high surface area ( >40 m2/g ), fine particles ( <100nm in diameter ) with thermal stability, which is widely used in the area of environmental protection.

    This patented functioning material is mainly made from cerium as well as zirconium as a stabilizer, adding a third element with Application No. of Patent in China, 99102251.3.

Patent applied

1. ZL 91112708.9 (China) Process of red phosphor Nov. 27, 1991
2. CN1082090 A (China) Phosphate type green phosphor with high performance and its manufacturing method Aug. 6, 1993
3. US Patent No. 5422040 ibid May. 18, 1994
4. CN1133197 A (China) Auto-control system and its method for solvent extraction process
5. CN1136016 A (China) Rare earth oxides with large specific area and its preparation method
6. Appl.No. 99102251.3 Preparation and application of nano grade of Ce-Zi composite oxide
7. Appl.No. 99102251.3 High tap density of samarium oxide and its preparation
8. Appl.No. 97106371.0 Ultrafine yttrium oxide with a large specific area and its preparation
9. 11-228116(Japan) Red phosphor for PDP
10. 11-29729(Japan) Blue phosphor for trichromatic lamps

Tremendous scientific results

As utter devotion of a research team, YL always stands in the most front among the RE enterprises in China with her tremendous scientific results, which is representing the current situation of RE industry and its trends of research and development in China.

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