发明名称 |
Wolframsäure und Verfahren zu deren Herstellung |
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. |
申请公布号 |
DE102004023068(B4) |
申请公布日期 |
2008.06.19 |
申请号 |
DE20041023068 |
申请日期 |
2004.05.11 |
申请人 |
H.C. STARCK GMBH |
发明人 |
ALBRECHT, SVEN;MEESE-MARKTSCHEFFEL, JULIANE;OLBRICH, ARMIN;REIS, MICHAEL;SCHRUMPF, FRANK;KUTZLER, UWE |
分类号 |
C01G41/00;C01G41/02;C22B34/36 |
主分类号 |
C01G41/00 |
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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