CSIR Technology Portal
CSIR Technology Portal

 Technology Profile

Title:

Recovery of Zinc as Valuable product (Zinc Sulfate Monohydrate, Carbonate/ Zinc Metal) from Zinc Dross
Value Proposition:

Recovering value-added zinc products from waste dusts, industries and converting it into useful products for the fertilizer industry.
Summary Application:
  • Zinc sulfate monohydrate for fertilizer application
  • Zinc oxide for rubber application
  • Zinc metal for alloy and galvanizing industry
Advantages:
  • Hydrometallurgical process for the recovery of Zinc from dross as zinc sulfate monohydrate, phosphate, and others
  • Vacuum distillation process for the recovery of Zinc from Zinc dross
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] Process [Environmental (Clean Tech.)] Recycling [Environmental (Clean Tech.)] Sludge Treatment [Mining and Minerals] Waste management [Environmental (Clean Tech.)]
Patent(s): IN443379 IN558160