Study on Preparation Techniques of Carnallite with Waste Brine

Da Li; Fang Qin Cheng; Xu Ming Wang; Yun Shan Guan

doi:10.4028/www.scientific.net/AMR.524-527.1082

Paper Titles

Research on Jinchuan Mineral Processing Plant by Flotation Column
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Research on Reinforcing Acid Leaching of a Refractory Copper Oxide Ore with High Content of Slime and Iron Minerals
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Response Surface Methodology for Optimization of the Chloridizing Roasting Process for a High Copper Pyrite Cinder
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Study on Extracting Potassium from Potassium Feldspar with Molten Salt Leaching Method
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Study on Preparation Techniques of Carnallite with Waste Brine
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Study on Proportioning Test of Coal Solid Waste Paste Filling Material
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Study on Reverse Flotation of Hematite Ores in Anhui
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Study on Terminal Velocity of Particles in the Teetered Bed Separator
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Study on the Interaction in Silica-Sphalerite-Mixture (Silica:Sphalerite=4:1)-Gypsum Systems
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 524-527Study on Preparation Techniques of Carnallite with...

Study on Preparation Techniques of Carnallite with Waste Brine

Abstract:

In this work, the crystallization of Carnallite from waste brine of Qaidam Basin in Qinghai province was studied based on NaCl-KCl-MgCl₂-H₂O phase diagram. According to this study, a new crystallization pathway to recycling waste brine was developed. The carnallite salt was formed by using this technology during the waste brine evaporation. The experiment data shows that 5 tons of waste brine was required to form one ton of the carnallite. The average grade of carnallite prepared by using this procedure was about 19.40 % of KCl, 16.92% of NaCl, 28.80% of MgCl₂, and 0.82% of CaSO₄. This study provides an opportunity to utilization of the waste brine.