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Hindustan Zinc Receives Grant of 1st European Patent

Metal News - Published on Tue, 03 Sep 2019

Image Source: hzlindia.com
Hindustan Zinc receives grant of 1st EUROPEAN PATENT – EP 3192882. EP 3192882 : Method for Production of Potassium Antimony Tartarate by Utilizing Antimony Bearing Residues patent has been developed by ZnTech+, Hindustan Zinc. The patent describes the process to treat Antimony-bearing by-product of Zinc-Lead smelters and convert it into a value added product, Potassium Antimony Tartarate. PAT is being consumed by Zinc hydro smelters for purification of Zinc Sulphate solution to produce Zinc metal. 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.

The R&D team is continuously working on developing HZL patent portfolio. US patent application and Indian patent application on this technology are also under processing. In addition, Hindustan Zinc has filed 4 National and 2 International Patents. The grant of patent provides further recognition of the quality of the innovation being carried at HZL.

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Posted By : Rabi Wangkhem on Tue, 03 Sep 2019
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