Process for preparing sulphur granules

Details Process for preparing sulphur granules Process for preparing sulphur granules

B - Operations, Transporting

01

J

18/505

B01J 2/04 (2006.01) C01B 17/02 (2006.01)

Patent

CA 1242057

ABSTRACT OF THE DISCLOSURE The present invention relates to a process for the preparation of sulphur granules, in which in a granulation zone a sulphur melt is with the aid of at least one feeding device supplied in upward direction into a bed of sulphur nuclei, which are kept separate from each other and are contacted with a gas, the process being characterized in that a sulphur melt having a temperature of at least 5°C above the crystallization temperature is introduced into a bed of sulphur nuclei having a temperature of 30-70°C, which bed is fluidized with a gas, the melt, after having left the feeding device, being contacted with a powerful gas stream having a temperature about equal to the temperature of the melt and a velocity of at least 100 m/sec, in such an amount that the mass ratio of the gas stream to the sulphur melt is between 0.1 : 1 and 0.6 : 1, and the sulphur granules formed are continuously discharged from the granulation zone. The process provides a more energy efficient production of sulphur granules having improved properties and reduces agglomeration of granules in the bed.

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