Rare earth subsulfate luminous material and its hot synthesis in solvent


Application Number: 00108496
Application Date: 2000.07.21
Publication Number: 1335349
Publication Date: 2002.02.13
Priority Information:
International: C09K11/84
Applicant(s) Name: China Science &. Technology Univ.
Address:
Inventor(s) Name: Han Zhaohui;Qian Yitai
Patent Agency Code: 34103
Patent Agent: wang xiangqiu
Abstract Single or mixed RE nitrate and the water solution of thiocarbamide, RE nitrate and the alkali solution of ammonium sulfate, or the alkali solution of RE sulfate are made to react inside one sealed pressure container at 200-400 deg.c for at least 3 hr. The one-step hot reaction process in solution ot synthesize subsulfate has relatively low temperature, mild conditions and simple operation, and its product has controllable chemical composition and thus different luminous performance.