Abstract: A device for the tangential filtration of a fluid to be processed and intended to be divided into a filtrate and a retentate includes, in an outer case, a series of filtration elements of tubular form lying parallel to each other, at least one output for the filtrate, communicating with the filtrate collection receptacle, a first communication chamber in which are fitted the separation resources, communicating with respectively a first series and a second series of filtration elements forming the go and return circuits of a circulation loop for the fluid to be processed, where the separation resources include a turbine of a circulation pump. The input for the fluid to be processed opens into the first communication chamber of the outer case between the turbine of the circulation pump and the filtration elements of the series forming the return circuit of the circulation loop.

Abstract: The invention provides a filter module comprising an outer casing provided at each end with a respective support plate for supporting at least one filter element for obtaining a filtrate that is recovered via an outlet passage provided in the vicinity of each support plate. According to the invention, each support plate is extended at right angles by an assembly skirt for assembling to the casing.

Abstract: The present invention relates to a device for tangential filtration of a fluid to be treated and to be separated into a filtrate and a retentate, comprising at least one filtration element which comprises at least one inlet for a fluid to be filtered and at least one outlet for the retentate having circulated the filtration element, wherein said element is incorporated in a circulation loop so that at least a part of the retentate is reinjected into the fluid to be treated before being introduced into the filtration element. a module of filtration into which the circulation loop is integrated and realized by a series of filtration elements in forward direction and a series of filtration elements in backward direction, forming forward and backward circuits.

Abstract: The subject of the invention is a membrane for the cross-flow filtration of a fluid to be treated that contains abrasive particles, comprising a porous support covered over part of its surface with a separation layer having a pore diameter smaller than that of the support, over which the fluid to be treated flows, characterized in that the separation layer includes an agent for protection from the abrasive particles.

Abstract: The invention provides a sealing gasket for mounting in a passage (5) of a support plate (4) to surround the end of a tubular-shaped filter element (3) provided with at least one fluid flow channel (31), the channel lying within a flow section Sc, the gasket being constituted in the form of a sleeve: possessing a height h not less than the height hps of the passage (5) in the support plate (4); and presenting an overlap bore (15) for the filter element (3) defined between one end (16) of the sleeve and a shoulder (17) which co-operates with the other end of the sleeve to define a channel bore (19) for the fluid, the shoulder (17) possessing a surface for acting as an abutment for the terminal portion of the filter element and presenting dimensions that are adapted to extend outside the flow section Sc so as to avoid impeding fluid circulation, the overlap bore (15) being provided with a groove (28) adjacent to the shoulder (17) in order to allow the gasket to creep.

Abstract: The present invention relates to a device for tangential filtration of a fluid to be treated and to be separated into a filtrate and a retentate, comprising at least one filtration element which comprises at least one inlet for a fluid to be filtered and at least one outlet for the retentate having circulated the filtration element, wherein said element is incorporated in a circulation loop so that at least a part of the retentate is reinjected into the fluid to be treated before being introduced into the filtration element. a module of filtration into which the circulation loop is integrated and realized by a series of filtration elements in forward direction and a series of filtration elements in backward direction, forming forward and backward circuits.

Abstract: A porous support (1) for the tangential filtration of a fluid to be processed, which has at least one surface (3) oriented toward the fluid to be processed flowing in a given direction of flow, and a surface (11) for extraction of a fraction called the filtrate, flowing through the porous support, this support being created by modification of an initial support, characterised in that it has a reduced permeability in relation to the initial support, and which is homogeneous when one moves parallel to the surface (3) of the support oriented toward the fluid to be processed in the direction of flow of the fluid to be processed.

Abstract: The invention concerns a device for tangential filtering of a fluid to be treated, comprising in a housing (2): a separating part (15) mounted in the first communicating chamber (11), in sealed contact with the neighboring positioning plate (4), to divide said chamber into first (V1) and second (V2) volumes externally and internally delimited by the separating part and communicating with said two-way circuit, comprising a communication passage (24) between the first volume (V1) and the second volume (V2), internally equipped with a turbine (23) of a circulating pump, provided with a driving shaft (25) extending outside the first chamber (11) to be connected to a driving motor (26), and a closure housing (13) mounted sealed on a neighboring positioning plate (4), delimiting the first communicating chamber (11) and sealingly traversed by the turbine (23) driving shaft (25).

Abstract: The invention concerns a device for the tangential filtration of a fluid to be processed and intended to be divided into a filtrate and a retentate, where the device includes, in an outer case (2), a series of filtration elements (3) of tubular form lying parallel to each other, at least one output (7) for the filtrate, communicating with the filtrate collection receptacle (6), a first communication chamber (11) in which are fitted the separation resources (15), communicating with respectively a first series and a second series of filtration elements (3) forming the go and return circuits of a circulation loop for the fluid to be processed, where the separation resources include a turbine (23) of a circulation pump. According to the invention, the input (E) for the fluid to be processed opens into the first communication chamber (11) of the outer case between the turbine of the circulation pump and the filtration elements (3) of the series forming the return circuit of the circulation loop.

Abstract: Membrane for the tangential filtration of a fluid, said membrane comprising a porous support (2) delimiting at least one flow channel (3) for the fluid flowing in a given direction (f) between an inlet (6) and an outlet (7), the inner surface (4) of the porous support (2) which delimits channel (3) being coated with at least one separator layer (5) for the fluid, characterized in that the support has variable partial pore-filling (c) extending from the inner surface (4) of support (2) on which the separator layer (5) is deposited, said variable partial pore-filling creating a mean porosity gradient on portion (8) of support (2) of given constant thickness (e) extending from the inner surface (4) of support (2), the minimum mean porosity being located at the inlet (6) and the maximum mean porosity at the outlet (7).

Abstract: The invention provides a filter module comprising an outer casing provided at each end with a respective support plate for supporting at least one filter element for obtaining a filtrate that is recovered via an outlet passage provided in the vicinity of each support plate. According to the invention, each support plate is extended at right angles by an assembly skirt for assembling to the casing.

Abstract: The invention provides a sealing gasket for mounting in a passage (5) of a support plate (4) to surround the end of a tubular-shaped filter element (3) provided with at least one fluid flow channel (31), the channel lying within a flow section Sc, the gasket being constituted in the form of a sleeve: possessing a height h not less than the height hps of the passage (5) in the support plate (4); and presenting an overlap bore (15) for the filter element (3) defined between one end (16) of the sleeve and a shoulder (17) which co-operates with the other end of the sleeve to define a channel bore (19) for the fluid, the shoulder (17) possessing a surface for acting as an abutment for the terminal portion of the filter element and presenting dimensions that are adapted to extend outside the flow section Sc so as to avoid impeding fluid circulation, the overlap bore (15) being provided with a groove (28) adjacent to the shoulder (17) in order to allow the gasket to creep.

Abstract: The present invention concerns an inorganic nanofiltration membrane characterized in that it comprises: a titanium oxide macroporous support, one or several intermediate separation layers, an upper metal oxide nanofiltration separation layer.

Abstract: The invention relates to a device for using various types of coupling system to connect together a tube (2) and a filter housing (3). According to the invention, the device comprises: a head plate (21) independent of the type of coupling system, the head plate being fixed to the housing (3) and being provided with passages (22) opening out into a bearing face (23) of the head plate; for each backing-plate (Pi) of given type, a first bearing face (25) complementary to the bearing face (23) of the head plate (21) and a second bearing face (29) adapted to co-operate with a flange (B1) of corresponding type; a sealing gasket (28) interposed between the first bearing face (25) of a backing-plate (Pi) of a given type and the head plate (21); and releasable connection means (30) between the head plate (21) and each backing-plate (P1) of a given type in order to provide sealing between them.

Abstract: The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.

Abstract: The invention relates to a device for using various types of coupling system to connect together a tube (2) and a filter housing (3).

Abstract: The invention concerns a device for tangential filtering of a fluid to be treated, comprising in a housing (2):

Abstract: The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.

Abstract: The invention provides a membrane for cross-flow filtering of a fluid to be treated, said membrane comprising an inorganic rigid porous support defining at least one flow channel for the fluid to be treated flowing in a given direction, the surface of the channel being covered in at least one separator layer separating out from the fluid to be treated a fraction referred to as the permeate which passes through the layer and the support. According to the invention, the separator layer presents a thickness gradient that decreases in the flow direction of the fluid to be treated.

Abstract: An appliance for fragmenting heterogeneous elements of a fluid medium comprising a filter module with an inlet connected to a supply line for the fluid medium including heterogeneous elements and an outlet connected to a fluid medium outlet line. The filter module comprises a series of channels inside which the fluid medium is to be circulated. The appliance further comprises a planar fragmentation device which is located upstream of the inlet and comprises passages. In accordance with the invention, the planar device constitutes a screen comprising passages which have one dimension equal to the smallest dimension of the cross section of flow of the channels divided by n, where n is in the range 1.4 to 10. The passages are formed from cutting separator elements which define the passages and have a minimum thickness in the range 0.1 mm to 2 mm to ensure fragmentation of heterogeneous elements of the fluid medium.