grinding gypsum liquor

  • Innovations: How Hydrometallurgy and the SX/EW Process ...

    The process involves leaching the material with a weak acid solution. This solution, known as pregnant liquor, is recovered and then contacted with an organic solvent, referred to as the extractant, in the solvent extraction stage (SX). Here the copper is extracted away from the aqueous phase leaving behind most of the impurities that were in ...

  • Gypsum's Costco to launch in-warehouse liquor sales ...

    Mar 28, 2018 · GYPSUM — The intricacies of Colorado's new alcohol sales law are being tested in Gypsum as Costco expands into liquor vending. This action marks only the second application of the state's new liquor rules, approved on the final day of the Colorado Legislature's 2016 session.