초록 ▼

The invention relates to a hydrophobic permeable composite, to a method for producing a hydrophobic permeable composite and to the use of said composite in various processes. Hydrophobic, permeable materials have been known for some time. Plastic materials especially, for example Gore-Tex.RTM., but

The invention relates to a hydrophobic permeable composite, to a method for producing a hydrophobic permeable composite and to the use of said composite in various processes. Hydrophobic, permeable materials have been known for some time. Plastic materials especially, for example Gore-Tex.RTM., but also materials consisting of other organic polymers are used whenever a material is required to be gas- and steam-permeable but not liquid-permeable. These materials have the disadvantage that they can only be used within a certain temperature range. The inventive composite is characterised by a higher temperature resistance since it consists mainly of inorganic materials. It is also relatively easy to produce since it can be obtained using the sol-gel technique. The inventive composite can be used as a membrane in the oxidation of aromatics, for example in the direct oxidation of benzene to phenol.

대표청구항 ▼

1. A permeable composite material, comprising:at least one porous and permeable support which is flexible and which is provided on at least one side thereof and in the interior thereof with an inorganic component, which comprises substantially a compound of a metal, a semi-metal and/or a mixed metal

1. A permeable composite material, comprising:at least one porous and permeable support which is flexible and which is provided on at least one side thereof and in the interior thereof with an inorganic component, which comprises substantially a compound of a metal, a semi-metal and/or a mixed metal of at least one element of Group III to Group VII of the Periodic Table, the permeable composite material being hydrophobic and having a thickness ranging from 5 to 1,000 .mu.m.