Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery-gray metal that is commonly found in the Earth’s crust. Manganese is an essential trace element that plays a crucial role in many biological processes, including metabolism, bone formation, and antioxidant function. It is also used in …
When extracting iron ore from a mine, it must go through several processing stages.Six steps to process iron ore: Fine particles decrease crusher efficiency and increase power draft for crushing small particles, resulting in higher kWhr per ton crushed. Screening and diverting fine particles significantly enhance crusher performance. This step involves retaining material inside the …
Copper mines refer to all available natural mineral aggregates containing copper. High-grade copper concentrate can be obtained by coarse grinding, roughing, scavenging of copper ore, followed by grinding and concentrating of the coarse concentrate. Classification of copper oreThe beneficiation process needs to be customized due to the different types and nature of the ore. The …
Methods and Equipment for Copper Ore Processing: A Guide to Beneficiation Read More »
Foreign media: Chinese companies open lithium processing plants in Zimbabwe. According to a report from Reference News on July 7th, a Chinese mining company officially opened a lithium processing plant worth about $300 million in Zimbabwe on July 5th. Zimbabwe has the largest lithium reserves in Africa and has attracted investors from many countries in …
Listed companies overseas “looking for lithium”, Zimbabwe becomes a favorite Read More »
L. R. P. de Andrade Lima Department of Materials Science and Technology, Federal University of Bahia, Phone: +(55) (71) 3283-9514, Fax: +(55) (71) 3283-9837, C.P. 6974, CEP: 41810-971Salvador – BA, Brazil. E-mail: lelo@ufba.br (Received: March 20, 2006 ; Accepted: July 28, 2007) Abstract – Carbon in leach and carbon in pulp are continuous processes that use activated carbon in a cascade of large agitated tanks, which have been widely used to recover or concentrate precious metals in gold extraction plants. In the carbon-in-pulp process adsorption occurs after the leaching cascade section of the plant, and in the carbon-in-leach process leaching and adsorption occur simultaneously. In both processes the activated carbon is moved from one tank to another in countercurrent with the ore pulp until the recovery of the loaded carbon in the first tank. This paper presents a dynamic model that describes, with minor changes, the carbon-in-leach, the carbon-in-pulp, and the gold leaching processes. The model is numerically solved and calibrated with experimental data from a plant and used to perform a study of the effect of the activated carbon transfer strategy on the performance of the adsorption section of the plant. Based on the calculated values of the gold loss in the liquid and of the gold recovered in the loaded activated carbon that leaves the circuit, the results indicate that strategies in which a significant amount of activated carbon is held in the first tank and the contact time between the carbon and the pulp is longer are the best carbon transfer strategies for these processes. Keywords: Activated carbon; Adsorption; Gold; Leaching; Modeling; Optimization. INTRODUCTION Metal recovery or concentration by adsorption on activated carbon has been the dominant process for gold extraction after leaching by cyanide in aerated alkaline slurries. The continuous processes of gold recovery by adsorption on activated carbon in agitated tanks, namely the carbon-in-pulp (CIP) and the carbon-in-leach (CIL) processes, have been widely used since the 1970s. Due to the economic importance of these processes, their simulation has been receiving some attention for twenty years, especially in South Africa, Australia, and Canada. These studies have provided useful insights for process operation and optimization; however, some assumptions of these models, such as the reactor mass balances and the activated carbon transfer, are in general very simplistic. The main goal of the present work is to provide an alternative improved model for the CIL process that can be applied to process performance evaluation. The CIP and CIL processes use granulated activated carbon that is mixed with the pulp, composed of ore and water, and after it has been loaded with aurocyanide ion, the rich activated carbon is pumped out into the adsorption circuit and sent to the elution process. The main difference between the CIL and CIP processes is that in the latter leaching and adsorption occur simultaneously, while in the former dissolution of the gold has …
DYNAMIC SIMULATION OF THE CARBON-IN-PULP AND CARBON IN LEACH PROCESSES Read More »
Manganese is a crucial industrial metal, often referred to as the “essential element for steel production.” Following the processing of manganese ore, its products find extensive applications in industries such as steel manufacturing, battery production, non-ferrous metallurgy, electric vehicles, and chemistry. Why should we focus on manganese ore processing?According to a report by Research and …
5 Simple and Effective Steps to Achieve Manganese Ore Processing Read More »
Ilmenite is the primary source of titanium, which is widely utilized in various industries including metal production, paint manufacturing, paper production, plastic fabrication, textile manufacturing, and more. This blog aims to provide an overview of the ilmenite beneficiation process and its associated processing plant. Learn about ilmenitePrior to beneficiation, a mineral test should be conducted …
Titanium Ore: Beneficiation and Plant Processing Read More »
Lepidolite is a captivating mineral abundant in lithium, extensively utilized in lithium-ion batteries, electric vehicles, glass ceramics, and greases. Nevertheless, the composition of lepidolite is intricate. How does lepidolite acquire lithium concentrates? This blog will unveil the entire process and equipment used for lepidolite processing. Lepidolite is an emerging lithium resource Lepidolite, also known as …
How to Process Lepidolite in Four Steps lepidolite processing plants Read More »
Are you familiar with tantalum-niobium ore? It can be found in your phone, laptop, computer, and TV. Tantalum-niobium ore is a broad term used to describe minerals that contain tantalum and niobium, typically in the form of coltan (columbite-tantalite). Tantalum and niobium are classified as “rare metals”. Tantalum and niobium, which are always found together, …
Coltan Beneficiation, Solutions, Uses of Tantalum-Niobium Ore Read More »
Alluvial and rock gold beneficiation methods are crucial for maximizing the extraction and recovery of gold from different ores. These methods utilize physical, chemical, and mechanical processes to separate gold particles from surrounding impurities. Alluvial Gold Beneficiation Methods Placer or alluvial gold is commonly found as fine particles in geological settings like rivers, river beds, …
