| Publication No: | IN202411004791 [India] | Application No: | IN202411004791 |
| Title: | Process for the preparation of zeolite | ||
| Publication Date: | 08-08-2025 | File Date: | 23-01-2024 |
| Inventor(s): | Rajaram Bal; Anil Chandra Kothari; Akashdeep Karmakar; Sonu Bhandari; Ankur Bordoloi; Tuhin Suvra Khan; Mukesh K Poddar | ||
| IPC Classification: | C01B39/40, C01B37/02, B01J29/00, C07C2/66, C07C15/073 | ||
| Abstract: | The present invention provides the hydrothermal synthesis of coal waste material (CWM) based zeolite using 10%tetrapropylammonium hydroxide (TPAOH) as structure-directing agent (SDA) as well as a template for the zeolite. The said process comprises the mixing of sodium carbonate (Na2CO3) with CWM in the ratio 1: X (X=0.3-1.5).The mixture was fused in the temperature 800°C for 2hrs with ramping rate of 1°C/min. Then fused mass was acid treated, followed by washing and an appropriate amount of water, and TPAOH was introduced into this and then placed for aging for 24-48hrs and; after that the material obtained was placed for crystallization for 60 to 120 hours. After crystallization, the mother solution was filtered and dried and then calcined at 550°C for 4hrs with a ramping rate of 1°C /min. |
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