Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno

Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek

Other

Rinse Alle Terpstra

Joost Petrus Gerardus Maria Van Eijk

Klaas Timmer

Harmen Anne Meinema

Godefridus Hendricus Maria Gubbels

Yvette Gertrude Roman

Harrie Gorter

Hendrik Willem Brinkman

Johannes Coenradus Theodorus Van Der Heijde

Frits Kornelis Feenstra

Ruud Wilhelmus Johannes Dirrix

Sander Johannes Everstein

Joost Petrus Van Eijk

The membrane module according to the invention is characterized in that it has concrete flanges. This membrane module is made by first sealing a bundle of ceramic fiber membranes at one end using a viscous sealant and then pressing it into a fluid mass of concrete in a mould. After the mass of concrete has hardened the process is repeated with the other end of the bundle. Finally the ends of the fiber membranes are opened by sawing off a slice of the flanges.

Membrane module as well as a method for making a membrane module

The exchanger is made from a number of tubes sealingly connected to a pipe plate which is further connected to an enclosure. The pipe plate is realized by positioning enclosure and tubes in a mould and pouring a ceramic slurry which is subsequently sintered.

Method for producing an exchanger and exchanger

A method for producing hollow fibrous membranes includes the steps of mixing a ceramic powder with a binder to form a paste having a sufficient viscosity to be extruded without heating, characterized in that said binder is a binder dissolved in water or another simple solvent or a thermosetting binder or an inorganic binder or a combination of said binders; extruding the paste to the form of hollow fibers by means of a spinneret; supporting the hollow fibers leaving the spinneret on a roller conveyor comprising a pair of rollers which rotate in opposite directions away from each other where the fibers contact the rollers; and sintering the hollow fibers. These membranes are used for microfiltration, ultrafiltration or gas separation. The fibrous membranes have an external diameter of 0.1-3 mm and a wall thickness of 10-500 &mgr;m.

Method for producing hollow fibrous membranes for microfiltration, ultrafiltration or gas separation

The invention relates to a method for manufacturing a fiber-reinforced bioactive ceramic implant, wherein a base form is made from fibrous material and interspaces between the different fibers are filled using chemical vapor phase infiltration. The fibrous material is coated with a composition which optimizes the bonding with the infiltrant. Preferably, a calcium-phosphate compound is brought between the fibers, which are preferably of the continuous-fiber type.

Method for manufacturing a fiber-reinforced bioactive ceramic implant

Method for producing a high temperature resistant exchanger. The exchanger is made from a number of tubes sealingly connected to a pipe plate which is further connected to an enclosure. The pipe plate is realised by positioning enclosure and tubes in a mould and pouring a ceramic slurry which is subsequently sintered.

Method for producing an exchanger

The invention relates to a method for manufacturing a fiber-reinforced bioactive ceramic implant, wherein a base form is made from fibrous material and interspaces between the different fibers are filled using chemical vapor phase infiltration. Preferably, a calcium-phosphate compound is brought between the fibers, which are preferably of the continuous-fiber type.

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Geldrop, Netherlands

Rinse Alle Terpstra