Voltage-controlled, hydrodynamically isolated, ion-generation apparatus and method
US11180387B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2019 |
| Grant date | Nov 23, 2021 |
| Priority date | — |
| Expiry date | Oct 15, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/024
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus and method isolating ion generation from target metal precipitation and flocculation rely on an ion generator and a precipitation reactor distinct, separated, optimized, and otherwise independent, so no co-habitation of ion generation and precipitation, nor their flow regimes, is permitted. Plug flow is hyper turbulent in the ion generator. Flow is quiescent to laminar the precipitator. Coating sacrificial anodes is avoided by not over driving currents for ionization at the anode. Control of electrical resistance across flows of very high TDS (over 200 kppm, often over 225 kppm) is accomplished by selectively masking a portion of the anode, cathode, or both of such electrodes. Masks may be dielectric films or layers, such as plastic sheets or tubes, or curtains of bubbles injected into the flow near an electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.