Sulfur recovery process using sulfur debonding agent

C - Chemistry – Metallurgy – 01 – B

Patent

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C01B 17/05 (2006.01) B01D 53/52 (2006.01) C01B 3/06 (2006.01) C01B 17/12 (2006.01)

Patent

CA 2226220

Recovery of an insoluble polymeric sulfur species from the reaction solution of a hydrogen sulfide conversion process is enhanced by adding a sulfur debonding agent to the hydrogen sulfide conversion reaction solution either at the outset of the process or after conversion of the hydrogen sulfide. Conversion of the hydrogen sulfide initially produces a soluble complex having the polymeric sulfur bound therein. The sulfur debonding agent breaks the soluble complex to produce a free insoluble polymeric species readily separable from the reaction solution by conventional physical means to obtain the desired sulfur product.

On améliore la récupération d'une espèce de soufre polymère insoluble, provenant de la solution de réaction propre à un procédé de conversion du sulfure d'hydrogène, en ajoutant un agent de dissociation du soufre à cette solution de réaction, soit au début du processus, soit après conversion du sulfure d'hydrogène. La conversion du sulfure d'hydrogène produit d'abord un complexe soluble au sein duquel est lié le soufre polymère. L'agent de dissociation du soufre brise ce complexe soluble pour donner une espèce polymère insoluble libre, facile à séparer de la solution de réaction par des moyens physiques conventionnels, ce qui permet d'obtenir le produit de soufre souhaité.

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