发明名称 |
Tungstic Acid Powder Consisting of Spherical Tungsten Particles and Method for Producing Same |
摘要 |
Process for the production of a powdered spherical tungstic acid by acidification of an aqueous alkaline tungstate solution with mineral acid at elevated temperature, preferably in a continuous stirred tank or a cascade of at least 2 continuous stirred tanks, and tungstic acid obtainable in this way, which is characterised by a high bulk density and spherical morphology.
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申请公布号 |
US2007224096(A1) |
申请公布日期 |
2007.09.27 |
申请号 |
US20050579775 |
申请日期 |
2005.04.28 |
申请人 |
H.C. STARCK GMBH & CO. KG |
发明人 |
ALBRECHT SVEN;OLBRICH ARMIN;REIB MICHAEL;SCHRUMPF FRANK;MEESE-MARKTSCHEFFEL JULIANE;KUTZLER UWE |
分类号 |
C01G41/02;C01G41/00;C22B34/36 |
主分类号 |
C01G41/02 |
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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