acid leach

См. также в других словарях:

• Acid rain — is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants, aquatic animals, and infastructure. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the… …   Wikipedia

• acid mine drainage — noun acid drainage triggered by mining processes, especially those which expose large surface areas of rock. Abbrev.: AMD Acid mine drainage describes the toxic environmental effect of contaminated water runoff from mining sites (often abandoned) …  

• In-situ leach — In situ leaching (ISL), also called in situ recovery (ISR) or solution mining, is a process of recovering minerals such as copper and uranium through boreholes drilled into the deposit. The process initially involves drilling of holes into the… …   Wikipedia

• 2,4-Dichlorophenoxyacetic acid — 2,4 Dichlorophenoxyacetic acid …   Wikipedia

• Pregnant leach solution — (PLS) is acidic copper laden water generated from stockpile leaching and heap leaching. Pregnant Leach Solution is used in the SX/EW process.The portion of an original liquid that remains after other components have been dissolved by a solvent is …   Wikipedia

• Zinc smelting — is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide,Citation | title = Compilation of Air Pollutant Emission Factors | publisher = U.S. Environmental… …   Wikipedia

• Uranium mining — The Ranger Uranium Mine in Australia …   Wikipedia

• Lateritic nickel ore deposits — are surficial, weathered rinds formed on ultramafic rocks.They comprise 73% of the continental world nickel resources and will be in the future the dominant source for the winning of nickel. Genesis and types of nickel laterites Lateritic nickel… …   Wikipedia

• hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium

• Thermometric titration — titration systems have pre dominated in this area since the 1970 s. With the advent of cheap computers able to handle the powerful thermometric titration software, development has now reached the stage where easy to use automated thermometric… …   Wikipedia

• bacterial leaching — noun (mining) see under ↑leach1 • • • Main Entry: ↑bacteria bacterial leaching The use of selected strains of bacteria to accelerate the acid leach of sulphide minerals • • • Main Entry: ↑leach …   Useful english dictionary