Arylene sulfide polymerization process
Abstract
Abstract AN ACID GAS STREAM COMPRISING HYDROGEN SULFIDE AND IMPURITIES IS PASSED INTO AN ABSORPTION ZONE CONTAINING A POLAR ORGANIC SOLVENT. A FIRST OVERHEAD STREAM RUCH IN IMPURITIES AND A FIRST BOTTOMS STREAM COMPRISING A HYDROGEN SULFIDE ENRICHED POLOR ORGANIC SOLVENT STREAM ARE WITHDRAW FROM THE ABSORPTION ZONE. THE FIRST BOTTONS STREAM AND AN ALKALI METAL HYDROXIDE STREAM ARE PASSED INTO AN ARYLENE SULFIDE REACTOR IN QUANTITIES SUFFICIENT TO SUBSTANTIALLY CONVERT ALL OF THE HYDROGEN SULFIDE TO AN ALKALI METAL SULFIDE REACTANT. SUBSQUENTLY A POLYHALOSUBSTITUTED AROMATIC COMPOUND IS INTRODUCED INTO THE REACTOR UNDER REACTION CONDITIONS SUITED TO THE PREPARATION OF ARYLENE SULFIDE POLYMERS. IN A PREFERRED EMBODIMENT AN ARYLENE SULFIDE POLYMER IS WITHDRAWN FROM THE REACTOR IN THE PRESENCE OF BY-PRODUCT SALT AND POLAR ORGANIC SOLVENT, THE ORGANIC SOLVENT IS SEPARATED FROM THE ARYLENE SULFIDE POLYMER, TO THE SEPARATED POLAR ORGANIC SOLVENT IS THEN PASSED TO THE ABSORPTION ZONE FOR FURTHER ABSORPTION OF HYDROGEN SULFIDE.
Inventors
- 👤 J Miles
- 👤 F Sherk
Bibliographic Details
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