A process for treating elemental sulphur for smell improvement

Details A process for treating elemental sulphur for smell improvement A process for treating elemental sulphur for smell improvement

C - Chemistry, Metallurgy

01

B

C01B 17/02 (2006.01) C04B 28/36 (2006.01)

Patent

CA 2665291

A process for treating a stream of elemental sulphur comprising an organic polysulphide and/or a thiol for smell improvement, the process comprising the following steps: (a) providing a molten stream of elemental sulphur comprising an organic polysulphide and/or a thiol at a temperature in the range of from 120 to 160 °C; (b) admixing a liquid unsaturated compound with the stream of molten elemental sulphur in an amount in the range of from 0.01 to 10.0 wt% based on the weight of sulphur to allow the organic polysulphide and/or thiol to react with the unsaturated compound.

La présente invention concerne un procédé de traitement d'un flux de soufre élémentaire comprenant un polysulfure organique et/ou un thiol pour améliorer l'odeur, le procédé comprenant les étapes consistant à : (a) fournir un flux à l'état fondu de soufre élémentaire comprenant un polysulfure organique et/ou un thiol à une température dans la gamme de 120 à 160 °C ; (b) mélanger un composé insaturé liquide avec le flux de soufre élémentaire à l'état fondu en une quantité dans la gamme de 0,01 à 10,0 % en poids sur la base du poids de soufre de façon à permettre au polysulfure organique et/ou au thiol de réagir avec le composé insaturé.

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