Hydrogen sulfide abatement in molten sulfur

Details Hydrogen sulfide abatement in molten sulfur Hydrogen sulfide abatement in molten sulfur

2005-05-03

2005-05-03

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

With additive

C423S567100, C423S578100

Reexamination Certificate

active

06887447

ABSTRACT:
The present invention provides a method for inhibiting the evolution of H2S from sulfhydryl compounds in molten sulfur by using scavenging agents such as anhydrides and polymers thereof, conjugated ketones, carbonates, epoxides, monoesters and diesters of unsaturated dicarboxylic acids and polymers of these esters, and the like and mixtures thereof. In one embodiment, it is preferred that the scavenging agent is in liquid form at contact temperature with the molten sulfur. In another embodiment, the scavenging agent may be atomized into the vapor space over the molten sulfur to contact the sulfur with the agent.

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