Process to prepare elemental sulphur
US11339411B2 · kind B2 · utility
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12Claims
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Assignee
Inventors
Key dates
| Filing date | May 30, 2018 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | May 30, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a process to prepare elemental sulphur by (i) contacting an aqueous solution comprising bisulphide with oxidised sulphide-oxidising bacteria under anaerobic conditions wherein elemental sulphur is produced and a reduced sulphide-oxidising bacteria is obtained and (ii) wherein the reduced sulphide-oxidising bacteria are oxidised by transfer of electrons to an anode of an electrochemical cell to obtain the oxidised sulphide-oxidising bacteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.