VAW Sulfite Vereinigte Aluminiumwerke


VAW Sulfite Vereinigte Aluminiumwerke : Also known as the S-T process. A process for extracting aluminum from clay by sulfurous acid. Basic aluminum sulfite, Al2O3+2SO2+5H2O, is crystallized from the purified leachate and thermally decomposed. The process was operated on a commercial scale by Vereinigte Aluminiumwerke at Lauterwerk, Germany, during World War II. (Check source for accuracy of chemical formula)
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