Alkaline Leaching

- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 7
- File Size:
- 192 KB
- Publication Date:
- Jan 1, 1979
Abstract
ALKALINE LEACHING; SODIUM HYDROXIDE U.S. 4,091,071 -In the alkaline digestion of bauxite containing goethite, boehmite and/or diaspore, the process is accelerated by adding to the digestion mass an optimum proportion of calcium oxide and divalent manganese ions, advantageously in the form of a calcium carbonate-containing manganese oxide ore, whereby goethite is transformed into hematite, the alumina yield increased, and loss of caustic soda values minimized. J. Boros, assigned to Femipari Kutato Intezet, Aluterv Alumiumipari Tervezo Vallalat and Almasfuzitoi Timfoldgyar. May 23, 1978. 7 pp. Filed: 12-23-75 (643,670). Priority: Hungary, 12-24-74 (AU 330). Same: British 1,528,146, dated Oct. 11, 1978.
Citation
APA: (1979) Alkaline Leaching
MLA: Alkaline Leaching. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1979.