Patent Profile
| Patent No: | IN232395 [India] | Application No: | 1676/DEL/1998 |
| Title: | A process for purification of sodium chloride containing sodium sulphate | ||
| Issue Date: | 27-03-2009 | File Date: | 18-06-1998 |
| Inventor(s): | Kanaiyaial Damouardas Padia; Satish Hariray Mehta; Rohit Harikrishna Trivedi; Kaushik Jethalal Langalia; Mahesh Ramniklal Gandhi; Paramasivam Natarajan | ||
| IPC Classification: | C01D/3/04 | ||
| Abstract: | A process for purification of sodium chloride containing sodium impurity which has definite composition. The invention consists of a composition of Didwana salts found in the Didwana region of Rajasthan State containing less percentage of impurities which are within the permissible limit for industrial grade salt.The principle of the process is based on the phase equilibrium of NaCl-Na2SO4-H2O.The salt obtained is the upgraded salt. It provides Glauber"s salt and is a cyclic process with cost effectiveness. The resultant salt is named as salt efficient brine (SDB) . Moreover, induced crystallization in the invention makes the process energy efficient which with high industrial applicability. | ||
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: director[at]csmcri[dot]res[dot]in
:91-278- 2569496 Ext. 6000, 6010
:https://www.csmcri.res.in