Reactor for the fixation of a gas on a solid which may be used in particular for chlorination of windscreen wiper blades
AssigneeEquipements Automobiles Marchal
InventorsGuy L. Muller, Daniel F. Fraioli, Michel B. Oulie
Life of this patent
Estimating the term…
Abstract
A reactor for chlorinating rubber has an inlet opening which closely surrounds the rubber material entering the reactor therethrough, and hence any tendency for escape of chlorine is countered by absorption of that chlorine by the entering completely non-chlorinated rubber. The chlorinated rubber emerging from the outlet opening of the chamber is immersed in water before leaving the reactor and hence the outlet is sealed, by the water, against escape of the chlorine treatment gas. The rubber and chlorine displacements through the reactor are counter current to one another.
Claims9
Apparatus for the fixation of a treatment gas in its vapor state, on a length of solid which fixes the said gas spontaneously, said apparatus comprising:
- a reactor vessel having a sealed side wall, an inlet opening of a predetermined cross-section and length, and an outlet opening at a lower end of the vessel;
- means for maintaining said outlet opening of said vessel submerged in a liquid inert to the treatment gas so as to constitute a liquid seal;
- means for feeding a length of the solid to be treated into said vessel through said inlet opening and for moving said solid within the vessel from the inlet opening to said outlet opening;
- said solid having a cross-section slightly smaller than the cross-section of the inlet opening so that there is an annular clearance space of a predetermined cross-section and length between the solid and the interior of the inlet opening;
- means for feeding the treatment gas into the lower end of the reactor vessel above the level of the liquid seal;
- and
- means for controlling the feeding of the treatment gas to the reactor so that substantially all the treatment gas fed is fixed on the solid moving through the reactor vessel;
- said cross-section of the clearance space between the solid and the inlet opening being sufficiently small, and the length of the inlet opening being sufficiently long that substantially all the treatment gas tending to escape through the clearance space is fixed on the solid as the solid is fed through the inlet opening, whereby escape of the treatment gas through the inlet is substanially prevented.
Dependencies are inferred from the claim text.