Hindustan Zinc receives its first European patent
The patent EP3192882 granted in July 31, 2019 discloses method of production of Potassium Antimony Tartrate (PAT) by utlizing waste products bearing antimony.
Potassium Antimony Tartrate (PAT) is consumed by Zinc hydro smelters for purification of Zinc Sulphate solution to produce Zinc metal.
The USA and India equivalents of this patent are under processing.
The patented process has been commercialized and is running successfully at DSC Ancillary setup since 2016. About 75MT of PAT is produced annually which is consumed internally by HZL hydro smelters.
Sources: Hindustan Zinc Media and Espacenet
