Abstract: The present invention relates to compact zeolite preforms, which are characterized in that they have as high a zeolite content as possible determined by means of suitable adsorption methods. A further aspect of the present invention relates to a method for producing compact zeolite preforms, said method being characterized in that: a) a mouldable mixture, comprising zeolite, one or more zeolite precursor components, water (if necessary) and one or more organic additives (if necessary) is processed into preforms; b) the preforms obtained in this way are subjected to thermal treatment; and c) the thermally treated preforms are watered, aged and brought into contact with a further component from which, in combination with the zeolite precursor components, zeolite can be produced and exposed to conditions under which zeolite forms from the further component and the zeolite precursor components.

Abstract: A separation module which contains at least one bundle of ceramic capillaries (9), in which, for controlling the material transport and the flow in the separation module, a certain distance is established between the capillaries (9) by joining. The separation module can be used in a variety of ways in the separation of substances by filtration, also in combination with further measures of chemical process engineering.

Abstract: A separation module which contains at least one bundle of ceramic capillaries (9), in which, for controlling the material transport and the flow in the separation module, a certain distance is established between the capillaries (9) by joining. The separation module can be used in a variety of ways in the separation of substances by filtration, also in combination with further measures of chemical process engineering.

Abstract: The aim of the invention is to provide a separation module that does not have the disadvantages of metal, glass or plastic housings and that at the same time allows to produce a separation layer that is as flawless as possible. To this end, the inventive separation module comprising a housing and a separation element retained thereby. The invention is further characterized in that a) the separation module is composed of a housing produced from a dense ceramic material and of separation element supports produced from a porous ceramic material; b) the separation element supports are coated with a separation layer either on the feed side or on the permeate side thereof, and c) the separation layer is applied on the separation element supports after the fully ceramic separation module has been assembled. The inventive product is especially but not exclusively useful in chemical process engineering in the broader sense thereof.