Titlebook: Rare Metal Technology 2019; Gisele Azimi,Hojong Kim,Alafara Abdullahi Baba Conference proceedings 2019 The Minerals, Metals & Materials So

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Nepheline Syenite—An Alternative Source for Potassium and Aluminium.5% SiO.. Chloridising-roasting experiments were carried using CaCl. at 900?°C for 1?h and water leaching at ambient temperature for 1?h. The leach liquor contains impurities like Ca and Na; hence, selective extraction of potassium was carried out through precipitation using perchloric acid at freez

Biguanides

Leaching and Recovery of an Oxide Gold Concentrate Using Ammoniacal Thiosulfate Solutions the leach solution, and an adsorption efficiency of 99.3% gold and 39.4% copper was attained. Two-step elution process, including pre-elution of copper with 0.5?mol/L (NH.).S.O. followed by gold elution with 2?mol/L NaCl?+?0.5?mol/L Na.SO. was adopted, and 98.6% of copper and 99.1% of gold could be successfully eluted from the resin.

Cognizance

Recovery of Manganese by Roasting-Ammonia Leaching from Low-Grade Manganese Carbonate Oresned under the following conditions: 650 of roasting temperature, 1?h roasting time, 14?mol/L of ammonia concentration, 2?mol/L of ammonium carbonate concentration, 80?min of leaching time and 5:1 of liquid/solid ratio.

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Conference proceedings 2019de supercritical fluid extraction, direct extraction processes for rare-earth recovery, biosorption of precious metals, and recovery of valuable components of commodity metals such as zinc, nickel, and metals from slag..

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2367-1181 nium, and tungsten. Rare processing techniques covered include supercritical fluid extraction, direct extraction processes for rare-earth recovery, biosorption of precious metals, and recovery of valuable components of commodity metals such as zinc, nickel, and metals from slag..978-3-030-05740-4Series ISSN 2367-1181 Series E-ISSN 2367-1696

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