Carbonaceous process for recovering sulfur values
Abstract
Abstract A METHOD FOR RECOVERING SULFUR VALUES FROM A MOLTEN SALT MIXTURE CONTAINING ALKALI METAL SULFATE OR SULFITE BY EITHER A ONE-STAGE OR TWO-STAGE TREATMENT OF THE MOLTEN SOLUTION. FOR SINGLE-STAGE TREATMENT, THE ALKALI METAL SULFATE- OR SULFITE-CONTAINING MOLTEN SOLUTION IS REACTED WITH A HYDROCARBONACEOUS COMPOSITION, PREFERABLY CARBON AND HYDROGEN, TO FORM HYDROGEN SULFIDE AND ALKALI METAL CARBONATES IN THE MOLTEN SALT. FOR THE TWO-STAGE TREATMENT, THE SULFATE- OR SULFITE-CONTAINING MOLTEN SOLUTION IS FIRST TREATED WITH A CARBONACEOUS MATERIAL, PREFERABLY CARBON, TO FORM ALKALI METAL SULFIDE, WHICH IS THEN TREATED WITH A GASEOUS MIXTURE CONTAINING STEAM AND CARBON DIOXIDE TO FORM HYDROGEN SULFIDE AND ALKALI METAL CARBONATES IN THE MOLTEN SALT.
Inventors
- 👤 Laszlo A Heredy
Bibliographic Details
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