Production of Ferrite and Pigment grade high Purity monodispersed iron oxide from Waste Chloride pickle Liquor and other iron Rich Sources.

1.

Title of Product/Design/Equipment

Production of Ferrite and Pigment grade high Purity monodispersed iron oxide from Waste Chloride pickle Liquor and other iron Rich Sources.

2.

IPR Status

Patent/ Abroad IPR Details

Patent Filed

3.

Application/Uses

Production of Ferrite and Pigment grade high Purity monodispersed iron oxide

4.

Salient Technical Features including Competing Features

High purity mono dispersed hematite particles of very uniform sizes and shapes have been 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. Low temperature aqueous synthesis method produce very uniform size and shapes of iron oxide from very inexpensive and impure iron sources. 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.

5.

Level/Scale of Development

Developed and demonstrated on 1 kg Scale

6.

Environmental Considerations

The liquid effluent generated from is treated for regeneration of alkali and recovery of marketable grade salt. Only about 50 kg of nontoxic residue is generated per ton of iron oxide production.

7.

Status of Commercialization

Transferred to M/s Tata Pigments Ltd.

8.

Major Raw Materials to be Utilized

Waste Chloride Pickle liquor. Blue dust, scrap iron. High Iron containing waste

9.

Major Plant Equipment and Machinery Required

Oxidation column/leaching reactor (optional) Precipitation Reactors, Filter press, storage tanks, alkali regeneration setups, evaporator/crystallizer

10.

Techno-Economics

Available on demand

11.

Technology Package

(a) Process-Know-how, (b) Details of equipment, (c) Plant Layout and (d) Quality Assurance Methods. Assistance in setting up the plant on separate terms.