A sterile container for processing in a closed circuit a mixture separable into layers, comprising: a chamber for containing a mixture separable into layers which mixture is separable into at least a first layer and a second layer; a first opening for placing the chamber in communication with an outside; a second opening for placing the chamber in communication with an outside; a first connector conformed for coupling with an injection device, for injection of a mixture separable into layers, and/or with a removing device, for removal of a layer of a mixture separated into layers; wherein the first connector is arranged and conformed for enabling the fluid connection, via the first opening, between the chamber and the injection device and/or the removing device; a first valve conformed for sealedly closing the first opening; a second valve arranged and conformed for enabling exit of air from the chamber, when the mixture separable into layers is injected into the chamber; a first conduit which is arranged in the interior of the chamber, which is connected to the first opening and which is dimensioned so as to enable the removal of the first layer of the mixture separated into layers; wherein the first connector is conformed for coupling to the removing device, the sterile container further comprising: a third opening for placing the chamber in communication with an outside; a second connector arranged and conformed for coupling to the injection device and for enabling fluid connection, via the third opening, between the chamber and the injection device; a third valve conformed for sealedly closing the third opening; the second connector is conformed for coupling also to the removing device and wherein the container comprises a second conduit which is arranged in the interior of the chamber, which is connected to the third opening and which is dimensioned so as to enable the removal of the second layer of the mixture separated into layers; a bottom wall and an upper wall opposite the bottom wall; the first opening and the third opening being fashioned in the upper wall; the first conduit being longer than the second conduit, characterized in that the first conduit and the second conduit are arranged within the chamber before the use of the sterile container. a chamber for containing a mixture separable into layers which mixture is separable into at least a first layer and a second layer; a first opening for placing the chamber in communication with an outside; a second opening for placing the chamber in communication with an outside; a first connector conformed for coupling with an injection device, for injection of a mixture separable into layers, and/or with a removing device, for removal of a layer of a mixture separated into layers; wherein the first connector is arranged and conformed for enabling the fluid connection, via the first opening, between the chamber and the injection device and/or the removing device; a first valve conformed for sealedly closing the first opening; a second valve arranged and conformed for enabling exit of air from the chamber, when the mixture separable into layers is injected into the chamber; a first conduit which is arranged in the interior of the chamber, which is connected to the first opening and which is dimensioned so as to enable the removal of the first layer of the mixture separated into layers; wherein the first connector is conformed for coupling to the removing device, the sterile container further comprising: a third opening for placing the chamber in communication with an outside; a second connector arranged and conformed for coupling to the injection device and for enabling fluid connection, via the third opening, between the chamber and the injection device; a third valve conformed for sealedly closing the third opening; the second connector is conformed for coupling also to the removing device and wherein the container comprises a second conduit which is arranged in the interior of the chamber, which is connected to the third opening and which is dimensioned so as to enable the removal of the second layer of the mixture separated into layers; a bottom wall and an upper wall opposite the bottom wall; the first opening and the third opening being fashioned in the upper wall; the first conduit being longer than the second conduit, characterized in that the first conduit and the second conduit are arranged within the chamber before the use of the sterile container. a third opening for placing the chamber in communication with an outside; a second connector arranged and conformed for coupling to the injection device and for enabling fluid connection, via the third opening, between the chamber and the injection device; a third valve conformed for sealedly closing the third opening; the second connector is conformed for coupling also to the removing device and wherein the container comprises a second conduit which is arranged in the interior of the chamber, which is connected to the third opening and which is dimensioned so as to enable the removal of the second layer of the mixture separated into layers; a bottom wall and an upper wall opposite the bottom wall; the first opening and the third opening being fashioned in the upper wall; the first conduit being longer than the second conduit, characterized in that the first conduit and the second conduit are arranged within the chamber before the use of the sterile container.