发明名称 |
Preparation of pulverulent zirconium dioxide |
摘要 |
In the preparation of pulverulent zirconium dioxide by dissolving a zirconium compound in formic acid, removing the volatile components and calcining the residue, a chloride-free zirconium compound is dissolved in a formic acid/water mixture and the zirconium dioxide is obtained in a manner known per se.
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申请公布号 |
US5840641(A) |
申请公布日期 |
1998.11.24 |
申请号 |
US19970851346 |
申请日期 |
1997.05.06 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
STERZEL, HANS-JOSEF;HESSE, WERNER |
分类号 |
C01G25/02;(IPC1-7):C04B35/48 |
主分类号 |
C01G25/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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