- Published: 03 March 2017
- Written by Editor
Alset Energy lab results return up to 97% Li recovery
LITHIUM RESULTS Activation Laboratories -- report No.: A16-13646 (report dates: Feb. 2, 2017; Feb. 21, 2017; Feb. 22, 2017) Four-acid digestion weak acid leach recovery Composite sample No. Salar Li (ppm) Li (ppm) (%) Composite A16-10795 (1-10) Santa Clara 464 368 79 Composite A16-10795 (11-20) La Salada 1,460 1,250 86 Composite A16-10795 (21-30) Caliguey 1,040 1,010 97
Lithium head assay results range from 464 to 1,460 parts per million Li, which closely mirrors of recent and historical results. The weak acid leachate results range from 368 to 1,250 ppm Li representing 79- to 97-per-cent recovery of lithium from soils.
In addition to the encouraging lithium leach results, potassium (K) leach results, summarized in the attached table, indicate this value may represent a byproduct with economic significance. The potassium head assays range from 24,700 to 41,000 ppm K. The weak acid leach demonstrated a recovery of 40 to 82 per cent, or 15,500 to 20,300 ppm K.
POTASSIUM RESULTS Activation Laboratories -- report No.: A16-13646 (report dates: Feb. 2, 2017; Feb. 21, 2017; Feb. 22, 2017) Four-acid digestion weak acid leach recovery Composite sample No. Salar K (%) K (ppm) K (%) K (ppm) (%) Composite A16-10795 (1-10) Santa Clara 4.1 41,000 1.97 19,700 48 Composite A16-10795 (11-20) La Salada 2.47 24,700 2.03 20,300 82 Composite A16-10795 (21-30) Caliguey 3.84 38,400 1.55 15,500 40
These results are considered preliminary investigations into the leaching characteristics of the soils, or unconsolidated salar infill material. The favourable Li recoveries using a weak acid leach indicate further sampling and leach testing are warranted. Selected results of interest are reported; the complete table of results will be posted on Alset's website or can be obtained by request.
In order to achieve representative leach results of material from the Santa Clara, La Salada and Caliguey salars, one composite sample was created for each salar. The composite sample was created by combining material from 30 historical samples that were collected during historical sampling efforts completed by LitioMex (2009 to 2011) and submitted to Activation Laboratories (Zacatecas, Mexico, and Ancaster, Ont.) in 2016 for geochemical evaluation and X-ray diffraction analysis (see Alset news release dated Oct. 4, 2016, and Alset news release dated Dec. 7, 2016). Upon completion of these analyses, the remaining material was used to create composite samples by mixing and homogenizing 10 samples from each salar into one composite sample to represent each salar. A portion of the sample was then analyzed using an inductively coupled plasma (ICP) procedure with a four-acid total digestion to determine the geochemical composition or head grade. The remaining material from each composite sample was divided into two aliquots, one was leached with hot water and the other with weak acid (aqua regia). Both leachates were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) to determine their composition.
Emily Hanson, PGeo, vice-president of exploration for Alset Energy, is the qualified person responsible for this release and has prepared, supervised and approved the preparation of the scientific and technical disclosure contained within the release.
About Alset Energy Corp.
Alset Energy is a TSX Venture Exchange-listed junior exploration company focused on exploring and acquiring mineral properties containing the metals needed by today's high-tech industries. The company is actively exploring in Mexico and Canada.
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