Expansion of vegetable material

Details Expansion of vegetable material Expansion of vegetable material

1986-10-17

1988-07-19

Millin, V.

Tobacco

Tobacco treatment

Puffing

A24B 318

Patent

active

047578297

ABSTRACT:
In a method of expanding tobacco the tobacco is contacted in a first vessel with an expansion agent and, with the vessel being closed and liquid phase expansion agent in the tobacco being at a temperature above the boiling point at a lower, release pressure, the first vessel is connected to a closed second vessel the interior of which is at the release pressure. When the tobacco is contacted in the first vessel with the expansion agent, the tobacco is maintained in a mobilized, particle separated condition by supplying gaseous mobilizing medium to a mobilizing zone of the first vessel via nozzles located at upwardly diverging walls bounding the zone and preferably supplying in addition gaseous accelerating medium to the zone in an upward direction from a lower region of the zone.

REFERENCES:
patent: 4523598 (1985-06-01), Weiss
patent: 4561453 (1985-12-01), Rothchild

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