Production of iron oxide pigments from iron-containing waste by
bio-oxidation, using specially selected microorganisms.
Employees: 3
Overview
BIOPIGMENT LTD. developed a new method of making iron oxide
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pigments from iron-containing waste (iron filings). The method is
based on oxidizing iron (II) into iron (III) using specially
selected microorganisms.
Iron oxide pigments are available in both natural and synthetic
forms in a wide range of yellow, red and brown colors as well as
black shades.
Synthetic iron oxides, because they are chemically manufactured
under controlled conditions, possess a higher degree of
consistency from batch to batch than do the natural iron oxides.
ADVANTAGES of the proposed technology are
* New bio-oxidation process is three times faster than chemical
oxidation.
* Bio-oxidation process is clean - no waste products are
produced.
* Can provide purified iron oxide pigments.
* Lower production cost than chemical oxidation.
