Extraction of lead from galena concentrates using fluosilicic acid and peroxide

Autor:	Dessy Amalia, Yunita Ramanda, Maryono Maryono
Rok vydání:	2017
Předmět:	chemistry.chemical_classification Sulfide Metallurgy engineering.material Peroxide Metal Solvent chemistry.chemical_compound chemistry Galena visual_art engineering visual_art.visual_art_medium Extracted Lead Leaching (metallurgy) Particle size Nuclear chemistry
Zdroj:	Indonesian Mining Journal. 20:69-80
ISSN:	2527-8797 0854-9931
DOI:	10.30556/imj.vol20.no1.2017.187
Popis:	A study on lead extraction from lead concentrate had been conducted. Galena is usually associated with other sulfide ores such as sphalerite.The lead concentrate was able to be extracted and purified into its metal through a leaching process using a selective solvent of fluosilicic acid (H 2 SiF 6 ). Parameters used in this process include ratio (dose) of reactant (H 2 SiF 6 :H 2 O 2 ), temperature (without heating; 30; 50; 70; 80; and 90°C) and particle size (-100+150#, -150+200#, -200+325, dan -325#).The best extraction was achieved using the particle size of -325 mesh. The amount of extracted lead was increased due to the rise of temperatureand dose of fluosilicic. The amount of peroxide addition was determined by its optimum influence on the lead extraction because its excess would produce PbSO 4 . The influence of H 2 SiF 6 and H 2 O 2 doses was calculated using ANOVA.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2a67feaf719d66e9ca3c0534f7c738b5 https://doi.org/10.30556/imj.vol20.no1.2017.187 Zobrazit plný text záznamu