Indian Science Technology and Engineering facilities Map
 
Supplier Map
Service Map

Patents

Patent Details

Applicant:
Indian Institute of Technology (IIT) Roorkee 
Title:
A hybrid iron sulfide impregnated anion exchanger (HISIIX) for selective removal of hexavalent chromium from contaminated water 
Inventor(s):
Sudipta Sarkar and Laiju A.R 
Application type:
Applied - 2019-06-19 
Application Number:
201911024268 
Applied at:
India 
Entered by:
Indian Institute of Technology (IIT) Roorkee 
Abstract:
Present invention provides synthesis of hybrid Iron Sulfide Impregnated Anion Exchanger (HISIIX) for selective removal of hexavalent chromium from contaminated water. Anion exchange resin containing styrene-divinyl benzene matrix and quaternary ammonium functional group are kept in contact with 0.3M Na2S solution in an orbital shaking incubator for 24 hour. After 24 hour, the ion exchanger is separated and washed thoroughly with distilled water before it was contacted with FeCl2 in an orbital shaker. The resultant material is black in colour, distinctly different from the golden yellow coloured parent ion exchanger. HISIIX thus prepared is washed and dried under nitrogen atmosphere at 50˚C and is stored in ethanol solution in airtight condition to prevent oxidation. 

 
THE VISION
THE MISSION
ABOUT I-STEM
It has always been the basic tenet of the Government of India, in generously funding R&D efforts at academic institutions over the years, that facilities established through such support be made available to those needing them and qualified to make use of them for their own research work
read more >>

However, this was never easy or straightforward for, among other reasons, there was no ready source of information of what facility was available and where. Thanks to the Web, it is much easier today to have a national and regional “inventory of resources”, so as to match users with the resources they need, and to do all this in an efficient and transparent manner.

This can lead to a leap in R&D productivity and greatly enhance the effectiveness of public investment. This is the motivation behind I-STEM.
read less <<
Visitor Hit Counter
Hosted at Indian Institute of Science
Copyright © 2024 I-STEM. All rights reserved.
Audited by: STQC Bengaluru.