Invention Grant
US08663475B2 Diatomaceous earth products containing reduced soluble metal levels, processes for reducing soluble metal levels in diatomaceous earth products, and methods of using the same
有权
含有降低的可溶性金属含量的硅藻土产品，降低硅藻土产品中可溶性金属含量的方法及其使用方法
- Patent Title: Diatomaceous earth products containing reduced soluble metal levels, processes for reducing soluble metal levels in diatomaceous earth products, and methods of using the same
- Patent Title (中): 含有降低的可溶性金属含量的硅藻土产品，降低硅藻土产品中可溶性金属含量的方法及其使用方法
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Application No.: US13120199Application Date: 2009-09-24
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Publication No.: US08663475B2Publication Date: 2014-03-04
- Inventor: Jie Lu
- Applicant: Jie Lu
- Applicant Address: US CA San Jose
- Assignee: Imerys Filtration Minerals, Inc.
- Current Assignee: Imerys Filtration Minerals, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- International Application: PCT/US2009/058160 WO 20090924
- International Announcement: WO2010/036763 WO 20100401
- Main IPC: B01D24/00
- IPC: B01D24/00 ; B01D61/00 ; B01J20/14
Abstract:
Disclosed herein are diatomaceous earth products containing reduced soluble metal levels, processes for reducing soluble metal levels in diatomaceous earth products, and methods of using the same. In particular, diatomaceous earth products are disclosed that have been treated with at least one surface metal blocking agent, and then subjected to at least one thermal treatment process to reduce the level of soluble metals associated therewith. Such diatomaceous earth products containing reduced soluble metal levels may be useful for various applications including, but not limited to, as filter aid materials.
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