Uddeholms Aktiebolag Ab

Per A Billgren

Stig A Karlsson

PCT No. PCT/SE78/00029 Sec. 371 Date May 9, 1979 Sec. 102(e) Date May 9, 1979 PCT Filed Aug. 10, 1978 PCT Pub. No. WO79/00137 PCT Pub. Date Mar. 22, 1979 This specification describes a method of separating a fine-grained close-packed solid material from a liquid with which the fine-grained material is saturated. The material may by way of example consist of grindings; metal-containing pickling bath deposits; or metal oxides from metallurgical venturi-filter. The moist mixture (1) is packed in a container (2) which thereafter is closed and heated from underneath. The liquid is evaporated starting from the lower portions in the container and forces liquid from the upper portions towards the surface of the paste-like mixture, wherefrom collected liquid (9) can be removed. Common oil drums can be used as containers. When the liquid has been removed the containers with enclosures can be charged in metallurgical furnaces or can the material be dumped together with waste material without any effects detrimental to the environment.

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Soderfors, Sweden

Per A Billgren