发明公开
- 专利标题： PURIFICATION OF QUARTZ POWDERS BY REMOVAL OF MICROPARTICLES OF REFRACTORY MATERIALS
-
申请号： EP19186021.2申请日： 2019-07-12
-
公开(公告)号： EP3763682A1公开(公告)日： 2021-01-13
- 发明人: Sayce, Ian George , Schindler, Michael , Schildt, Fabian , Visnow, Eduard
- 申请人： Heraeus Quarzglas GmbH & Co. KG , Heraeus Conamic UK Limited
- 申请人地址： DE 63450 Hanau Quarzstrasse 8; GB Tyne and Wear NE28 6DD Neptune Road Wallsend
- 代理机构： Gille Hrabal
- 主分类号： C03C3/06
- IPC分类号： C03C3/06 ; C03C23/00 ; C03C1/02 ; B01J8/16 ; C01B33/18
摘要：
Described is a process for the refinement of a quartz powder, comprising the step of separating microparticles of refractory minerals, in particular minerals containing rare earth metal compounds, from the quartz powder by an elutriation step.
信息查询
