发明名称 |
PULVERFORMIGT YTTRIUM-STABILISERET ZIRCONIUMOXID OG FREMGANGSMAADE TIL FREMSTILLING AF DETTE |
摘要 |
Process for the preparation of an yttrium-stabilised fine zircon powder essentially in the tetragonal form, the said process being characterised in that it comprises the following stages:… a) an aqueous mixture of zirconyl/acetate and yttrium acetate is prepared,… b) the pH of the said mixture is brought to a value of at least 5,… c) the solvent is removed from the said mixture, d) the solid residue obtained at the end of stage c) is pyrolysed. …<??>The invention also relates to the products obtained by the said process. |
申请公布号 |
DK538488(A) |
申请公布日期 |
1989.03.30 |
申请号 |
DK19880005384 |
申请日期 |
1988.09.28 |
申请人 |
RHONE-POULENC CHIMIE |
发明人 |
SAMDI, AZZEDDINE;PARIS, RENE;ROUBIN, MARC |
分类号 |
C04B35/48;C01G25/02;C04B35/486 |
主分类号 |
C04B35/48 |
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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