FIELD: membrane technology. SUBSTANCE: polypropylene film is irradiated with heavy charged particles . Then enriching in solution containing hexavalent chromium followed by additional chemical treatment is carried out. Said chemical treatment takes place with the help of reagent (e.g. alcohol, mixture of alcohols, aqueous-alcohol solution which contains alcohol or mixture of alcohols) within 2-20 min at 20-70 C or/and with the help of aqueous solution or aqueous-alcohol solution within 5-50 min at 40-70 C is carried out. Mentioned above solution has concentration of alcohol 80-100 mass %, it also contains 0.5-20 mass % of hydroxide of alkali metal. EFFECT: improves efficiency of the method. 6 cl
| Title | Year | Author | Number |
|---|---|---|---|
| MICROFILTRATION MEMBRANE PRODUCTION METHOD | 1991 |
|
RU2039587C1 |
| METHOD FOR PREPARATION OF POLYPROPYLENE MICROFILTERING MEMBRANE | 0 |
|
SU1763452A1 |
| PROCESS OF MANUFACTURE OF SUBMICRON TUBULAR METAL REPLICAS WITH TRACK MEMBRANES | 1998 |
|
RU2156328C1 |
| PROCESS OF MANUFACTURE OF METAL REPLICA FOR ANALYSIS OF NANOMETRIC DUCTS IN TRACKING MEMBRANES | 1996 |
|
RU2115915C1 |
| METHOD OF PRODUCTION OF ASYMMETRIC TRACK MEMBRANE | 2002 |
|
RU2220762C1 |
| POROUS MEMBRANE AND METHOD OF ITS PRODUCTION | 2009 |
|
RU2440840C2 |
| METHOD OF TRACK MEMBRANES PRODUCTION | 1994 |
|
RU2077938C1 |
| METHOD OF PRODUCING MONO- AND OLIGOPOROUS MEMBRANES | 2013 |
|
RU2542300C1 |
| SYSTEM OF MULTIROD ELECTRODES WITH NANO- AND SUBMICROMETER DIAMETERS FOR ELECTRIC EROSION TREATMENT OF SURFACE OF SOLID BODIES | 2000 |
|
RU2186663C2 |
| METHOD OF DETERMINING CONTENT AND SPATIAL DISTRIBUTION OF BISMUTH | 1991 |
|
RU2014589C1 |
