Filter device

Abstract

The invention proceeds from a filter device which is provided for stabilising a liquid, having at least one filter unit, a membrane filter unit, which has at least one filter element and at least one integrated stabiliser.It is proposed that the filter unit has at least one further integrated stabiliser.It is proposed in a further aspect of the invention that the filter device comprises at least one first precursor which is provided for forming the filter element at least partially, and the same first precursor is provided for forming the stabiliser at least partially.

1 . A filter device for stabilising a liquid, having at least one filter unit, which has at least one filter element and at least one integrated stabiliser, wherein the filter unit has at least one further integrated stabiliser wherein the filter device is produced by forming the at least one filter element by reactive spinning of a first precursor, and a third precursor; and optionally a second precursor, in a reactive spinning step; wherein the integrated stabiliser of the at least one filter unit is formed during the reactive spinning step by radically polymerizing the first precursor in the presence of an activator; wherein the first precursor comprises polyvinylpyrrolidone, and the third precursor comprises polysulfone, polyether sulfone and/or polyvinylidene fluoride. 
     
     
         2 . The filter device according to  claim 1 , wherein at least one first precursor is provided for forming the filter element at least partially, and the same first precursor is provided for forming the stabiliser at least partially. 
     
     
         3 . The filter device according to  claim 1 , wherein the stabiliser is provided for taking up a substance which is dissolved in the liquid and a further stabiliser is provided for taking up a further substance which is dissolved in the liquid and which is different from the first substance. 
     
     
         4 . The filter device according to  claim 1 , wherein the filter unit comprises at least one chemically regenerable stabiliser. 
     
     
         5 . The filter device according  claim 1 , wherein the filter unit comprises at least one stabiliser which is an adsorbent. 
     
     
         6 . The filter device according to  claim 1 , wherein the filter unit comprises at least one stabiliser which is an ion exchanger. 
     
     
         7 . The filter device at least according to  claim 2 , wherein the same first precursor is provided for functionalising the filter element hydrophilically. 
     
     
         8 . (canceled) 
     
     
         9 . The filter device according to  claim 1 , wherein at least one second precursor is provided for forming a stabiliser. 
     
     
         10 . The filter device according to  claim 9 , wherein the second precursor comprises at least vinyl acetate. 
     
     
         11 . The filter device according to  claim 1 , wherein the third precursor is provided for forming the filter unit at least partially. 
     
     
         12 . The filter device according to  claim 2 , wherein the filter unit comprises at least one stabiliser which is formed by at least one cross-linked precursor at least partially. 
     
     
         13 . The filter device according to  claim 1 , wherein the filter unit has at least one stabiliser which is formed as an adsorbent and which comprises at least one cross-linked polyvinylpyrrolidone, a xerogel, a silica gel, a zeolite, a bentonite and/or a mixture thereof. 
     
     
         14 . The filter device according to  claim 1 , wherein the filter unit has a stabiliser which is formed as an ion exchanger which comprises at least one functionalised agarose. 
     
     
         15 .- 18 . (canceled) 
     
     
         19 . A method of using the filter device, according to  claim 1 , the method including stabilising a liquid by at least one integrated stabiliser of the filter unit and regenerating the integrated stabiliser. 
     
     
         20 . A filter device for stabilising a liquid, having at least one filter unit, which has at least one filter element and at least one integrated stabiliser, wherein the filter device is produced in accordance with  claim 1  and the first precursor is provided for forming the filter element at least partially and the same first precursor is provided for forming the stabiliser at least partially.