CENTRIFUGAL EXTRACTOR SINGLE-STAGE BXP PHARMACY Purification of active pharmaceutical ingredients (antibiotics). Purification of food compounds (carboxylic acid). Perfumery, aromas, essential oils... CHEMICALS Washing (polymers), extraction (acetic acid), effluent treatment (phenol extraction from an aqueous phase). Separation and purification (precious metals). • Direct bowl drive by inline motor. • No lower bearing (no bearing in the process zone). • Possible construction materials: • Highly polished finish available for pharmaceutical applications. • Very short contact and residence times. • Reduced solvent quantities used. • Efficient and accelerated separation by centrifugal force. • Adaptable agitators available. • Autonomous operation requiring no supervision. • High flow rates with remarkably compact equipment. • High extraction capacity due to intimate mixing of phases. • Each extractor corresponds to approximately one theoretical extraction stage (stage contactor). • Direct bowl drive by inline motor. • No lower bearing (no bearing in the process zone). • Possible construction materials: • Highly polished finish available for pharmaceutical applications. • Very short contact and residence times. • Reduced solvent quantities used.

LIQUID/LIQUID EXTRACTOR EXTRACTION MODE A feed solution (heavy phase) containing one or more solutes (blue in the diagram) and an immiscible solvent (yellow in the diagram) with a different density are fed into a mixing chamber located at the bottom of the centrifuge housing. Rotation A rotating disc mixes the two immiscible liquids to create a dispersion (green in the diagram). Various disc designs are available to limit the shearing of emulsified liquids. Shaft Light phase weir Heavy phase weir Efficient mixing enables a large interfacial surface between the two liquids, thus facilitating the...

LIQUID/LIQUID SEPARATOR SEPARATION MODE Rotation Vent The solution, composed of two immiscible liquids with different densities (green in the diagram), is fed into the pumping chamber located at the bottom of the centrifuge housing. Light phase weir Heavy phase weir • The solution is pumped by the turbine fixed at the bottom of the centrifuge bowl for transfer. • The liquids then separate under the action of centrifugal force. • The heavier phase (yellow) is pressed against the bowl wall, while the lighter phase (blue) occupies the central section of the bowl. • The liquid/liquid interface position...

TECHNICAL SPECIFICATIONS Combined Flow Range (m3/h) Main Construction Materials CENTRIFUGAL EXTRACTORS These centrifuges can be mounted on independent structures or a common structure, and connected by flexible connecting pipes. The hourly flow rates depend on the viscosity, emulsifiability, the density difference between the two phases, and the ratio of their respective flow rates. ATEX compatibility available Construction Other special alloys available on request UNITED KINGDOM ROUSSELET ROBATEL 45 Avenue Rhin et Danube Parc d’activité économique de Marenton 07104 ANNONAY - FRANCE Tel. : +33...