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| Environment Performance |
| GREEN CHEMISTRY |
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Continuous Filter instead of Centrifuge |
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As part of adopting new technologies in our operations, we have switched from using centrifuges to using a continuous filter at our CTO-6. The use of centrifuges made the process, solvent intensive, led to higher emissions and was economically unviable. |
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Employing a continuous filter has reduced solvent content from 35-40% to 12-15%, directly translating to reduced energy consumption and reduced discharge of solvent in the environment. |
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Moreover the reduced capital, maintenance & installation costs contributed to the overall project savings, resulting in a favourable rate of return on investment. |
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Microwave Dryer |
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Microwave heating is a direct method of heating. The properties of microwaves make them very well suited to dry pharmaceutical formulations in a fast and elegant way. This type of heating is instantaneous, uniform and penetrating throughout the material, which is a great advantage to the pharmaceutical industry. |
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At Dr. Reddy's, we have installed a microwave dryer, which has tremendously improved drying time of solvents from our reactions. |
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The drying time has drastically come down
from 10 hours to just 5-10 mins. |
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This has been particularly useful in the case of water as a solvent, since the use of water was deferred due to the severe difficulty surrounding its drying using conventional methods. Moreover its energy consumption is just 20% of the conventional drying process. |
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