# US 7,611,627 B2 · Membrane module as well as a method for making a membrane module

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- Number: US 7,611,627 B2
- Document ID: US7611627B2
- Status: Granted
- Kind: B2
- Application number: 11/656,710
- Filed: 2007-01-23
- Published: 2007-08-23
- Granted: 2009-11-03
- Earliest claimed: 2007-01-23
- Inventors: Rinse Alle Terpstra; Ruud Wilhelmus Johannes Dirrix; Sander Johannes Everstein
- Web page: https://patentgrep.com/patent/US7611627B2

## CPC

- B01D 71/02: Inorganic material
- B01D 53/22: by diffusion (manufacturing semi-permeable membranes B01D67/00; form, structure or properties of semi-permeable membranes B01D69/00; material for semi-permeable membranes B01D71/00)
- B01D 63/022: {Encapsulating hollow fibres}
- B01D 63/023: {Encapsulating materials}
- B01D 63/031: {Two or more types of hollow fibres within one bundle or within one potting or tube-sheet}
- B28B 1/002: {assembled from preformed elements}
- B28B 23/00: Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; {Production of reinforced objects}(B28B21/00 takes precedence; in units for prefabricated buildings B28B7/22)
- B01D 2323/081: Heating
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- B28B: SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER (foundry moulding B22C; working stone or stone-like material B28D; shaping of substances in a plastic state, in general B29C; making layered products not composed wholly of these substances B32B)

## Abstract

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.

## Claims

### Claim 1

Membrane module comprising a bundle of ceramic hollow fibre membranes with a ceramic flange on at least one end, characterized in that the flange is made of concrete.

### Claim 2 (depends on 1)

Membrane module according to claim 1, characterized in that the flange is made of refractory concrete.

### Claim 3 (depends on 1)

Membrane module according to claim 1, characterized in that the flange is covered with a gastight coating.

### Claim 4 (depends on 3)

Membrane module according to claim 3, characterized in that the gastight coating is a ceramic or glaze coating.