Process for the preparation of potassium carbonate hydrate
Abstract
Abstract AN ECONOMICALLY FEASIBLE CONTINUOUS PROCESS FOR THE PRODUCTION OF POTASSIUM CARBONATE BY THE CARBONATION OF A POTASSIUM HYDROXIDE SOLUTION WITH CO2 ON A COMMERCIAL SCALE WHICH IS TROUBLE-FREE AND REQUIRES SIMPLE APPARATUS IN WHICH A STREAM OF THE POTASSIUM HYDROXIDE SOLUTION IS FED TO A REACTION ZONE WHERE IT IS REACTED WITH CO2 AT 80-135*C. AND 130 TORR-ATMOSPHERIC PRESSURE; SUFFICIENT WATER IS EVAPORATED FROM THE SOLUTION IN THE REACTION ZONE TO PRECIPITATE K2CO3-1 1/2H2O; A STREAM OF THE PRECIPITATED POTASSIUM CARBONATE AND A PORTION OF THE SOLUTION IS REMOVED FROM THE REACTION ZONE AS A SLURRY; THE LIQUID AND SOLID PHASES OF THE SLURRY ARE SEPARATED; AND THE SEPARATED LIQUID PHASE IS RECYCLED TO THE REACTION ZONE, PREFERABLY AFTER HEATING TO A TEMPERATURE ABOVE THAT OF THE REACTION ZONE.
Inventors
- 👤 U Neumann
Bibliographic Details
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