Invention Grant
- Patent Title: Method of production of a silica concentrate
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Application No.: US16927849Application Date: 2020-07-13
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Publication No.: US11958749B2Publication Date: 2024-04-16
- Inventor: Andrew W. Mitchelmore , Michael T. O'Sullivan , John Lea
- Applicant: GEO40 Limited
- Applicant Address: NZ Taupo
- Assignee: GEO40 LIMITED
- Current Assignee: GEO40 LIMITED
- Current Assignee Address: NZ Taupo
- Agency: FisherBroyles, LLP
- Agent Cara L. Crowley-Weber; Gregory T. Fettig
- Priority: NZ 9307 2015.06.19
- Main IPC: C01B33/14
- IPC: C01B33/14 ; B01D61/02 ; B01D61/14 ; B01D61/58 ; B01D63/06 ; B01D63/10 ; B01J13/00 ; C02F1/44 ; C02F101/10 ; C02F103/06
Abstract:
The invention relates to methods of production of a silica concentrate from geothermal fluids. More particularly, although not exclusively, the invention relates to the production of a colloidal silica concentrate, colloidal silica or precipitated silica from high temperature geothermal fluids by ultrafiltration to produce size-specific silica colloids and step-wise concentration of silica to avoid precipitation or gelling.
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