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IICT develops eco friendly technology to treat water

IICT develops eco friendly technology to treat water
Highlights

The city-based Indian Institute of Chemical Technology (CSIR-IICT) has developed a technology to manufacture hydrazine hydrate, which is a major component in industrial sectors. It’s acceptance levels will be distinctly high because the treatment reduces the adverse impact of pollutants on environment and living conditions.

Hydrazine Hydrate pilot plant at GACL The city-based Indian Institute of Chemical Technology (CSIR-IICT) has developed a technology to manufacture hydrazine hydrate, which is a major component in industrial sectors. It’s acceptance levels will be distinctly high because the treatment reduces the adverse impact of pollutants on environment and living conditions.

It is used as a reducing agent or an intermediate of synthesis in various industrial sectors like water treatment (effluents, industrial boilers), chemical treatment process (metals, mine extraction) or active ingredients synthesis (pharmaceuticals and agrochemicals). The technology’s pilot project was demonstrated recently at Gujarat Alkalies & Chemicals Ltd, Vadodara (GACL), to overwhelming appreciation.

“Together with GACL, we can proudly claim this technology as a ‘Make in India’ initiative. We have also signed an agreement with GACL for development of hydrazine hydrate technology,” explained Dr M Lakshmi Kantam, director, IICT. “GACL will shortly establish a commercial plant initially of 8,000 TPA of 80 per cent hydrazine hydrate based on IICT technology and detailed designs,” she said. “The process developed by us is based on hydrogen peroxide route, which is environment-friendly,” Lakshmi Kantam says.

Where is Hydrazine hydrate used?

  • Blowing agents: azodicarbonamide
  • Bio-active intermediates for agrochemical and pharmaceutical products, via Triazoles
  • Various products: certain organic pigments for dyes, reagents for photography, urethanes and acrylics, hydrobromic acid, etc.
  • An anticorrosion additive in the water circuits of thermal and nuclear plants.
  • An oxygen scavenger in the water of indus trial boilers and high pressure steam generators.
  • Refining of precious metals
  • Recovery of metals from pickling and surface treatment solutions
  • Treatment of liquid and gas wastes
  • Purification of sulfuric acid for grades used on the electronics market
  • Metallisation of plastics and metals (nickel, cobalt, iron, chromium, etc.)

By: P Krishnamurthy

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