FIELD: chemistry.
SUBSTANCE: invention relates to chemistry and can be used in gas-processing industry to remove polysulphanes from commercial-grade sulphur. Molten sulphur is fed into aqueous solution of an oxidising agent - 3,5-di-tert-butyl-o-benzoquinone in amount of 0.8 wt %. The polysulphane decomposition process is carried out at temperature 70-90°C. The spent oxidising agent is regenerated in an air current.
EFFECT: invention increases quality of commercial-grade sulphur.
2 ex
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