| A Polymeric flocculent and its process for manufacture | |
| अन्वेषक | Prof. Ram Parkas Singh, Prof. Dipankar Mal & Mr. S. Krishnamurthi |
| Patent | Filed |
| Polymeric flocculants, in particular, hydrolysed and unhydrolysed polyacrylamide grafted dextran. The polymeric flocculant comprises atleast one of hydrolysed and unhydrolysed polyacrylamide grated dextran having molecular weight in the range of 1.5 x 107 to 2.0x107 preferably 1.963 x 107 g/mole conversing efficiency of 75.5 to 90 preferably 86.45, percentage of nitrogen in the range of 15.5 to 17 preferable 16.39 and degree of substitution in the range of 85 to 90 preferably 86.15. The polymeric flocculants of the invention have high intrinsic viscosity, conversion percent, percentage of nitrogen and degree of substitution to provide for the best flocculation characteristics. Importantly, the selective synthesized hydrolysed and unhydrolysed grafted polymer and dextran, would have highest flocculation efficiency among various hydrolysed and unhydrolysed graft copolymers of other polysaccharides. The invention is further directed to a process for manufacture of the flocculants involving the high molecular weight dextran polyacrylamide. The invention is found useful in water / fluid treatment involving above polymeric flocculants. | |
| प्रभारी प्राध्यापक, IPR & IR प्रायोजित शोध एवं औद्योगिक सलाहकारिता भारतीय प्रौद्योगिकी संस्था खड़गपुर 721302 भारत ई-मेल: ipr @ sric.iitkgp.ernet.in |
संकायाध्यक्ष प्रायोजित शोध एवं औद्योगिक सलाहकारिता भारतीय प्रौद्योगिकी संस्था खड़गपुर 721302 भारत ई-मेल: deansr @ hijli.iitkgp.ernet.in |