System for the obtaining of calcium hydroxide from calcium sulfate. (Machine-translation by Google Translate, not legally binding)

摘要

Obtaining oxide and calcium hydroxide from calcium sulfate. These consist in the introduction of calcium sulphate (2) and dissolution of ammonia in water (4), in a reaction tank (1). By means of a mechanical agitator and at three thousand revolutions per minute we create an emulsion, so that the calcium sulfate reacts with the ammonia in solution. Ammonium sulfate (6) is produced, leaving calcium hydroxide solution in which it decant (5) and is recovered. Likewise, the amine sulphate obtained by crystallization treatment (7) by nebulization, sulfuric acid (8) and ammonia in gas that is recovered for reuse (4). (Machine-translation by Google Translate, not legally binding)