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Institut Francais Du Pe'trole

Societe Heurtey Efflutherm

Didier Brun

Alain Feugier

Jean-Claude Audebert

Bernard Sale

Gerard Chrysostome

Francedillaois Pahmer

Furnace for storing, reheating and holding ferrometallurgical products, in which the products travel along a displacement path on members placed so as to connect, in the tranverse direction, a charging zone and a discharging zone, the reheating and holding zones including, on the one hand, product-supporting members and transporting members placed at a certain distance from the supporting members and being able to perform a rising movement with respect to these and a horizontal displacement movement making the product advance step by step. The storage includes, in addition to the supporting members and transporting members of the type described hereinabove, at least one set of movable supporting members, independent of the hearth of the furnace, able to move with a horizontal alternating translational movement which is performed during the return phase of the transporting members and, upon a complete rectangular cycle of the transporting members, the charge (P) has progressed forwards by a distance equal to the sum of the steps of the displacements of the supporting members and the transporting members.

Furnace for reheating, holding and storing of metallurgical products

The process comprises oxidation of alkali-metal-containing carbonaceous products at a temperature of at least 800.degree. C. in a fluidized bed of fire-proof particles capable of trapping or fixing the metal elements.

Process for recovering metal elements from carbonaceous products

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Le Chesnay, France

Didier Brun