Title:
A PROCESS FOR SEPARATION AND PURIFICATION OF SODIUM SULFIDE
Document Type and Number:
WIPO Patent Application WO/2012/147097
Kind Code:
A3
Abstract:
The present disclosure provides a method for isolation and purification of sodium sulfide (Na2S) formed during desulfurization of petroleum residue. The process involves treating a sludge containing Na2S obtained during desulfurization of petroleum residue with a mixture of at least one organic solvent and water.
Inventors:
CHAVAN SANDEEP VASANT (IN)
KINI HARSHAD RAVINDRA (IN)
KINI HARSHAD RAVINDRA (IN)
Application Number:
PCT/IN2012/000263
Publication Date:
March 21, 2013
Filing Date:
April 12, 2012
Export Citation:
Assignee:
ADITYA BIRLA SCI & TECH CO LTD (IN)
CHAVAN SANDEEP VASANT (IN)
KINI HARSHAD RAVINDRA (IN)
CHAVAN SANDEEP VASANT (IN)
KINI HARSHAD RAVINDRA (IN)
International Classes:
B09B3/00; B01D11/02
Foreign References:
| JPS5012871A | 1975-02-10 | |||
| CN101445458A | 2009-06-03 | |||
| CN101481307A | 2009-07-15 | |||
| CN101391940A | 2009-03-25 |
Other References:
See also references of EP 2696954A4
Attorney, Agent or Firm:
DEWAN, Mohan (Trade Mark & Patent AttorneysPodar Chambers, S. A. Brelvi Road,Fort Mumbai 1, Maharashtra, IN)
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