Treatment of waste leaching liquor of a SHS produced tungsten boride

M. Seref Sonmez*, Sertac Yazici, Bora Derin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this study, the recycling conditions of waste liquor obtained after the production of tungsten boride powder from calcium tungstate by self-propagating high temperature synthesis (SHS) and the following hydrochloric acid leaching were investigated in detail. Environmentally unfriendly and extremely acidic (pH∼ -0.3) liquor consisting of calcium, magnesium, and boron ions was treated with 1 M sodium carbonate solution to precipitate magnesium carbonate and calcium carbonate phases. The obtained amorphous precipitates were heated up to the temperature of 400°C for re-crystallization. As a result, MgO, CaCO3 and CaMg(CO3)2 phases were obtained, while sodium, boron, chlorine ions were remain in the solution. The present study is still in progress.

Original languageEnglish
Title of host publicationEPD Congress 2011 - Held During TMS 2011 Annual Meeting and Exhibition
PublisherMinerals, Metals and Materials Society
Number of pages5
ISBN (Print)9781617827389
Publication statusPublished - 2011
EventEPD Congress 2011 - TMS 2011 Annual Meeting and Exhibition - San Diego, CA, United States
Duration: 27 Feb 20113 Mar 2011

Publication series

NameTMS Annual Meeting


ConferenceEPD Congress 2011 - TMS 2011 Annual Meeting and Exhibition
Country/TerritoryUnited States
CitySan Diego, CA


  • Magnesium and calcium recovery
  • Recycling
  • SHS leaching
  • Waste liquor treatment


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