Method for processing fluorine-containing aqueous solution
US10562800B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Apr 16, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure provides a method for processing a fluorine-containing aqueous solution. The method comprises a reaction step for mixing in a vertical direction the fluorine-containing aqueous solution and a disiloxane compound represented by a general formula RaRbRcSiOSiRdReRf, wherein Ra, Rb, Rc, Rd, Re and Rf are selected independently from each other from a group consisting of a phenyl group and an alkyl group comprising from 1 to 20 carbon atoms and hydrogen, to react a fluorine ion in the fluorine-containing aqueous solution with the disiloxane compound, obtaining a first reaction liquid containing a monofluorosilane compound represented by general formulas RaRbRcSiF and RdReRfSiF.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.