FIELD: filtration engineering.
SUBSTANCE: method comprises formation, on open porous support, liquid film from solution containing 19-22% fluoropolymer, 0.2-2.5% modifying additive, and solvent followed by solidification of fluoropolymer and additive. The latter is selected from oligoether and/or binder for electrophoresis primer. Support is open-porous tube made from glass-, carbon-, or organoplastic.
EFFECT: ensured reliable fixation of positive charge on membrane by simpler way, avoided necessity of recharging membranes, prevented their rapid pollution, and reduced number of washings of ultrafilters.
2 cl, 1 tbl, 11 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING MEMBRANE TUBULAR FILTERING MEMBERS | 2001 |
|
RU2192301C1 |
| METHOD OF MANUFACTURING MEMBRANE-TYPE TUBULAR FILTER ELEMENTS | 2001 |
|
RU2206376C2 |
| METHOD OF PREPARING POSITIVELY CHARGED MEMBRANE FOR FILTRATION OF LIQUIDS | 1994 |
|
RU2084273C1 |
| METHOD OF PRODUCING TUBULAR FILTRATION ELEMENT WITH POLYMER MEMBRANE | 2012 |
|
RU2483789C1 |
| METHOD OF MANUFACTURING FLUOROPOLYMER MEMBRANES FOR FILTRATION OF LIQUIDS | 1999 |
|
RU2158625C1 |
| MEMBRANE TUBULAR FILTERING ELEMENT AND THE METHOD OF ITS PRODUCTION | 2005 |
|
RU2289470C2 |
| METHOD OF PRODUCING TUBULAR MICROFILTER WITH FLUOROPOLYMER MEMBRANE | 2010 |
|
RU2432987C1 |
| METHOD OF PRODUCING TUBULAR FILTRATION ELEMENT WITH PSU MEMBRANE | 2010 |
|
RU2438768C1 |
| METHOD FOR RESTORING MEMBRANE TYPE TUBULAR FILTER | 1998 |
|
RU2141372C1 |
| METHOD OF CLEANING OIL | 2003 |
|
RU2255795C2 |
