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1. (WO2018219990) A PROCESS TO PREPARE ELEMENTAL SULPHUR

Pub. No.:    WO/2018/219990    International Application No.:    PCT/EP2018/064150
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: C01B 17/05
B01D 53/52
B01D 53/84
C02F 3/34
Applicants: PAQELL B.V.
Inventors: KLOK, Johannes Bernardus Maria
TER HEINE, Annemiek
DE RINK, Frederikus
BUISMAN, Cees Jan Nico
Title: A PROCESS TO PREPARE ELEMENTAL SULPHUR
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.