Sulfuric acid. Sulfuric acid is a toxic chemical used in copper mining. It is also a byproduct of many kinds of mining, mixing with water and heavy metals to form acid mine drainage. Sulfuric acid smells like rotten eggs. …

Treatment of Acid Mine Drainage The problem of acid mine drainage (AMD) has been present since mining activity began thousands of years ago. Mining activity has disrupted the hydrology of mining areas so badly that it is extremely difficult to …

Mining chemicals represent a niche area of supply but at the same time their use is almost universal across the industry. In this month's im-mining.com Spotlight Feature Article, from the June issue of International Mining magazine, Editor Paul Moore looks at the players, challenges, and future horizons for the sector.

Copper: Sulfuric Acid is used for leaching of copper from oxide ore, and some sulfide ores. The leaching solution is claimed to be diluted and recycled. However, it is recycled into lined ponds of high toxic levels of sulfuric acid. The sulfuric acid can enter the soil and groundwater through breaks, spills, tears in liners.

Amino acids key to new gold leaching process. Prof Eksteen also recommends it for future in-situ heap leach extraction projects, a process that is expected to make mining low-grade deposits in ...

Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, …

Sulfuric acid Sulfuric acid is a toxic chemical used in copper mining. It is also a byproduct of many kinds of mining, mixing with water and heavy metals to form acid mine drainage. Sulfuric acid smells like rotten eggs. …

Answer (1 of 3): I worked at a mining company for a year after I passed the Board Exam. From what I can deduce, all mining industries use sulfuric acid. This is used (along with nitric and hydrochloric acid, and sometimes hydrogen peroxide) in order to digest the ore samples, to remove the organ...

The acid used was nitric, 68 per cent, strength, and two strengths were used, the dilute being made by mixing two volumes of water with one volume of acid, the second by taking one of each; the term strong acid means the 68 per cent, acid. The gold taken in the three cases was 10 grains, the silver 10, 15, 20 grains, or in ratios of 1 to 1, 1.5 ...

Guangping pointed out that the most common acids used as chemical separators in mining — nitric, sulfuric or phosphoric acids — also are able to extract rare-earth metals from coal ash but produce...

Copper:Sulfuric Acid is used for leaching of copper from oxide ore, and some sulfide ores. The leaching solution is claimed to be diluted and recycled. However, it is recycled into lined ponds of high toxic levels of sulfuric acid. The sulfuric acid can enter the soil and groundwater through breaks, spills, tears in liners.

Uranium extraction from ore involves the use of acid or base to break own and extract uranium from the raw ore. These processes require significant amounts of acids or bases, the most commonly used being sulfuric acid and sodium carbonate, respectively.

There is no ore dust or direct ore exposure to the environment and a lower consumption of water is needed in the mining process (International Atomic Energy Agency [IAEA], 2005). However, the strong acids used to dissolve the ore body commonly dissolve metals in the host rock as well.

Guangping pointed out that the most common acids used as chemical separators in mining — nitric, sulfuric or phosphoric acids — …

Depressant for calcite. Can be used in place of quebracho but is more expensive. Tall Oil: See liqro and Indusoil. Undiluted or emulsion.5 to 2.5: Used as a substitute for oleic acid and other fatty acids in flotation of non-metallics. Tergitol Dispersant NPX (formerly NPG-101) Non-ionic surface active dispersant. Mixture of alkyl aryl ...

From what I can deduce, all mining industries use sulfuric acid. This is used (along with nitric and hydrochloric acid, and sometimes hydrogen peroxide) in order to digest the ore samples, to remove the organic constituents, and to release the bound metals in the sample. 526 views View upvotes Peter Hand, lives in Las Vegas

acid has many industrial purposes and is produced in greater quantities than any other chemical worldwide. In metal mining, sulfuric acid is used to leach copper oxide minerals. In one process, a solution of sulfuric acid laden with copper sulfate is stripped of copper via a solvent extraction and electro winning with the used sulfuric acid

1) The acid is already present in trapped underground pockets and is released by mining equipment. 2)Concentrated acids used to dissolve metals from the rock are picked up in rainwater. 3)Abandoned mining equipment leaks acids from batteries. 4)Mining exposes unweathered rock surfaces that react with water and the atmosphere to generate acids.