B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/37
B01J 20/26 (2006.01) B01D 11/04 (2006.01) B01J 15/00 (2006.01) B01J 19/30 (2006.01) C08J 7/14 (2006.01)
Patent
CA 1157001
ABSTRACT OF THE DISCLOSURE: A method of manufacturing superficially hydrophilized filling bodies for interphase mass and/or heat exchange units. In accordance with the invention, polypropylene filling bodies in a vessel are brought into contact with a gas containing 0.5 to 10 vol. % of sulphur trioxide and less than 5 vol. % of free oxygen, at a filling body temperature ranging between 10 and 50 °C. The gas temperature is at most 10 °C higher or at most 35 °C lower than the filling body temperature. After interruption of the contact between the filling bodies and the gas which can be constituted by a contact gas present in the sulphuric acid production, the filling bodies are brought into contact with a gaseous or liquid medium which is apt to react with sulphur trioxide and which can be selected from the group comprising water, ammonia, alkali carbonate or hydrogen car- bonate, and alkali or alkali earth the metal hydroxide. During the reaction which can be carried out in a rotatable vessel, the position of individual filling bodies is intensively varied. This method permits to advantageously solve the problem of homogeneity of the hydrophilizing reaction.
361717
Benes Petr
Krivsky Zdenek
Linek Vaclav
Stoy Artur
Strnad Miroslav
Robic Robic & Associes/associates
Vysoka Skola Chemicko-Technologicka
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