CSIR Technology Portal
CSIR Technology Portal

 Technology Profile

Title:

Production of Ferrite and Pigment Grade High Purity Monodispersed Iron Oxide from Waste Chloride Pickle Liquor and Other Iron Rich Sources.

Value Proposition:

Production of  mono dispersed hematite particles from chloride waste

Summary Application:

Hematite has variety of application as photosensitive material, catalyst, high quality pigments and cosmetics besides its major use as magnetic materials mainly for producing both soft and hard ferrites.

Advantages:
  • High purity mono dispersed hematite particles of very uniform sizes and shapes can be produced by low temperature aqueous synthesis route in large quantities with a yield of almost 100% starting from very inexpensive and impure iron sources such as blue dust, scraps, pickle liquors, crude iron oxide, high iron containing residues etc.
  • The mono dispersed hematite particles of different shapes such as cubic, spindle, ellipsoidal, spherical, peanut type particle can be produced by this method.
  • Different shapes of uniform size mono dispersed hematite particles of size ranging from 200 - 2000 nm can be produced.
Commercialization Status: Licensed awaiting commercialisation
Tech. Readiness Level:
CSIR-National Metallurgical Laboratory
CSIR-National Metallurgical Laboratory[CSIR-NML]
:  director[at]nmlindia[dot]org
:91-657-2345202
:https://www.nml.res.in
Industrial Applications: Metal Recyling [Metallurgy]
Photograph(s)