Patent Profile
| Patent No: | IN325710 [India] | Application No: | 3600DEL2012 |
| Title: | Low fouling thin film composite reverse osmosis membranes with improved chlorine resistance and a process for preparation thereof | ||
| Issue Date: | 25-11-2019 | File Date: | 23-11-2012 |
| Inventor(s): | ALAMURU VENKATA RAMI REDDY, SAHA NIRMAL KUMAR, JEWRAJKA SURESH KUMAR, JITENDRA JAYDEVPRASAD TRIVEDI, PARAMITA RAY, NAGENDRA PATHAK, GAURANG SHAMBUPRASAD TRIVEDI, TEMUBHA BHUPATSINH GOHIL, RAHUL SHUBHASH PATIL | ||
| IPC Classification: | C07C | ||
| Abstract: | The present invention relates to a complete process for preparation of high flux and salt rejection thin film composite (TFC) reverse osmosis (RG) membrane including process for preparation of support membrane for thin film, process for thin film coating of support membrane by in-situ interfacial polymerization between diamines and trimesoyl chloride, machine design, chemistry and details of process (engineering+ chemistry + ambient) parameter at IX 100 sqm scale upgradable to a scale even 10-20 times higher. The produced membrane is characterized by 96% salt rejection and 48 LM-2H-I flux with 2000ppm sodium chloride solution at 250psi pressure and 95% salt rejection and 46 LM2H-l flux with 35000ppm sodium chloride solution at 900psi pressure. The present invention also relates to complete machine design for PSF ultrafiltration membrane casting and coating for TFC membrane production at commercial level. |
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: director[at]csmcri[dot]res[dot]in
:91-278- 2569496 Ext. 6000, 6010
:https://www.csmcri.res.in
Industrial Applications
Composites [Materials]