heap leaching वाक्य
उदाहरण वाक्य
मोबाइल
- In 2011 leaching ( both heap leaching and in-situ leaching ) produced 3.4 million metric tons of copper, 22 percent of world production.
- In recent years, the addition of an agglomeration drum has improved on the heap leaching process by allowing for a more efficient leach.
- In 2015 it produced 4.6 million ounces of silver and 52, 588 ounces of gold from an open pit and heap leaching operation.
- That project would use a technique in which sulfuric acid is drained through piles of ore to extract the copper, a process known as heap leaching.
- In his role as Vice President External Affairs he briefed the Minister of BHP Billiton's intention to undertake heap leaching mineral processing trials at Olympic Dam.
- Cerro San Pedro ( gold and silver ) mine is located in the Mexican state of San Luis Potos?uses the process of heap leaching to recover minerals.
- The company was among the first in the 1970s to use heap leaching, a low-cost process in which microscopic gold is removed from huge piles of low-grade ore using cyanide.
- In October 2009, the company announced a Stage 4 Expansion forecasting production to increase to 10 million lb U3O8 [ 3, 846 t U ] per year using heap leaching.
- US gold production greatly increased during the 1980s, due to high gold prices and the use of heap leaching to recover gold from disseminated low-grade deposits in Nevada and other states.
- The Barneys Canyon mine in Salt Lake County, the last primary gold mine to operate in Utah, stopped mining in 2001, but is still recovering gold from its heap leaching pads.
- The mining involved the treatment of pyritic ore with a sodium cyanide solution to leach the gold out of the ore & mdash; heap leaching ( see also cyanide process ).
- Such oxide ores are usually leached by sulfuric acid, usually in a heap leaching or dump leaching process to liberate the copper minerals into a solution of sulfuric acid laden with copper sulfate in solution.
- Natural succession ( July 2004 ) At present time, heap doesn't represent for people around some inconvenience, no more significant spreading of dust, toxins, etc . This positive fact probably contributes strongly alkaline environment heap leaching of pollutants.
- Red mud has also been implemented as a pH modifier in the heap leaching of gold ores, removal of sulfur compounds from kerosene oil, hydrogenation of anthracene, coals, and aromatic compounds, and as a pigment in anticorrosive marine paints.
- Egypt presented to the agency the program for heap leaching of uranium ore in the Sinai and Eastern deserts and declared that none of the uranium ore concentrate produced as a result of the leaching activities had been of a purity and composition that required to be reported.
- Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and silver.
- According to the Red Book, the resource potential of the ore was 42, 200 tU as of 2010; this includes conventional recovery of 42, 200 tU of 0.25 % U, and by heap leaching another 5500 tU at 0.07 % U . The production of the SOMAIR mines have progressively increased from 1808 tU in 2009, 2726 tU in 2011 and 3065 tU in 2012.
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