Soxhlet extractor for solid/liquid extraction

摘要

The solid-liquid Soxhlet extractor (21) incorporates a heated distillation vessel (22) under a vessel (24) receiving the materials and extract, and incorporating a cooler (23) which condenses the extraction agent. A tube (29) returns liquid to the distillation vessel (22) from the base area of the extraction vessel (24) when the level in the vessel reaches a given value (39). The single-piece glass return tube (26) descends over its entire length from the extraction vessel (24) to the distillation vessel (22), and incorporates a magnetic valve (1) opening or shutting the tube. The glass valve housing inlet and outlet are fused together to the ends of the glass main return tube (26) to form a single valve and tube unit.