Recovery of sulfur values from sulfur-bearing materials
Abstract
Abstract A PROCESS FOR THE RECOVERY OF SULFUR FROM NORMALLY SOLID OR LIQUID CARBONACEOUS MATERIAL USED IN A PROCESS FOR PRODUCING SYNTHESIS GAS IN WHICH THE MATERIAL IS INTRODUCED INTO A CARBONATE MELT OF SODIUM, AND/OR POTASSIUM AND THE SULFUR OF THE SULFUR-CONTAINING MATERIAL IS CONVERTED TO A SULFIDE. THE MELT IS DISSOLVED IN AN AQUEOUS SOLUTION OF THE ACID SALT OF THE METAL CARBONATE TO RECOVER THE SULFIDE IN AQUEOUS SOLUTION AND THE SOLUTION IS THEN CARBONATED WITH CARBON DIOXIDE IN THE PRESENCE OF AN AQUEOUS SOLUTION MORE CONCENTRATED IN METAL BICARBONATE THAN THE AQUEOUS SOLUTION ENTERING THE CARBONATION ZONE TO PRODUCE HYDROGEN SULFIDE WHICH CAN BE CONVERTED TO SULFUR AND TO PRECEIPITATE THE ACID SALT OF THE METAL CARBONATE WHICH IS CONVERTED TO THE CARBONATE AND RECYCLED TO THE PROCESS AS THE ALKALI METAL CARBONATE MELT.
Inventors
- 👤 Phllip A Lefrancois
- 👤 Kenneth M Barclay
- 👤 James P Van Hook
Bibliographic Details
Claims Analysis
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