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 characterized by a high bulk density and spherical morphology.
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申请公布号 |
US8052956(B2) |
申请公布日期 |
2011.11.08 |
申请号 |
US20050579775 |
申请日期 |
2005.04.28 |
申请人 |
H. C. STARCK GMBH |
发明人 |
ALBRECHT SVEN;OLBRICH ARMIN;REISS MICHAEL;SCHRUMPF FRANK;MEESE-MARKTSCHEFFEL JULIANE;KUTZLER UWE |
分类号 |
C01G39/00;C01G41/00;C01G41/02;C22B34/36 |
主分类号 |
C01G39/00 |
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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