초록 ▼

The feed mixture, from which a required substance is to be isolated, is introduced centrally into a chamber unit rotating about its axis and having two non-miscible phases flowing through it in countercurrent. Monitors responding to the substance are disposed at the two ends of the chamber unit and

The feed mixture, from which a required substance is to be isolated, is introduced centrally into a chamber unit rotating about its axis and having two non-miscible phases flowing through it in countercurrent. Monitors responding to the substance are disposed at the two ends of the chamber unit and continuously detect the concentration of the substance and signal the measurements to a control system. By way of various valves and pumps this system controls the flow ratio of the two phases in such a manner that the concentration of the substance at one end of the unit, with respect to the corresponding concentration at the other end of the unit, remains within very low predetermined limits (e.g. 1%), so that practically the entire substance can be removed as an eluate with one of the two phases at the other end of the chamber unit (FIG. 1).

대표청구항 ▼

A process which utilises the tendency of one or more dissolved substances to assume equilibrium of distribution between two non-miscible liquid phases in a separator apparatus comprising a cylindrical chamber unit rotatable about its central axis and connected to a rotary motor drive, the unit being

A process which utilises the tendency of one or more dissolved substances to assume equilibrium of distribution between two non-miscible liquid phases in a separator apparatus comprising a cylindrical chamber unit rotatable about its central axis and connected to a rotary motor drive, the unit being divided by partitions normal to the rotational axis of the unit, into a plurality of chambers communicating with one another through apertures in a partitions eccentric to said axis, the flow rate of the two phases being adjustable so that they flow through the chamber unit as counter-currents, and the mixture containing the substance for isolation and accompanying substances being supplied to a place between the two end chambers of the chamber unit which may comprise one or more adjacent chambers; the process comprising monitoring the concentration of a substance (S), adjusting the flow ratio (R) of the two phases (OP, UP) so that the product of the set flow ratio (R′) and the concentration ratio (Ks) for the required substance (S) is not equal to 1, so that the substance (S) receives a specific direction of migration through the chamber unit, and at the same time adjusting the flow ratio so that the concentration of the required substance (S) at or near the end of the chamber unit opposite to the direction of migration of the substance has a value differing from zero but not exceeding a top threshold value.