Recovery of polymer from dispersion in water
Abstract
Abstract POLYMERS SUCH AS OLEFIN POLYMERS ARE RECOVERED FROM SOLUTION IN VOLATILE HYDROCARBON OR HALOGENATED HYDROCARBON LIKE TOLUENE OR CARBON TETRACHLORIDE, BY DISPERSING THE SOLUTION IN A LIQUID LIKE WATER WHICH IS SUBSTANTIALLY IMMISICIBLE WITH THE SOLVENT AND WITH THE POLYMER AND THEN INTRODUCING THE DISPERSION INTO A BODY OF HEATED LIQUID LIKE WATER KEPT AT A TEMPERATURE THAT CAUSES THE SOLVENT TO RAPIDLY VAPORIZE OFF. RECOVERY OF VAPORIZED SOLVENT IS EXCELLENT AND POLYMER IS ALSO EASILY SEPARATED OUT FROM THE HEATED BODY OF LIQUID. STREAMS OF STEAM CAN BE INTRODUCED INTO THE BODY OF LIQUID AROUND THE INTRODUCED DISPERSION. THE PROCESS CAN BE CARRIED OUT ON A CONTINUOUS BASIS USING STREAMS OF THE LIQUIDS AND SOLUTION, WITHOUT MUCH DANGER OF CLOGGING THE SOLUTION-INTRODUCING MEANS.
Inventors
- 👤 Hildegard Schnoring
- 👤 Willy Classe
- 👤 Diez Heine
- 👤 Herbert Nordt
- 👤 Karl-Heinz Kreutzer
Bibliographic Details
Claims Analysis
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