James G Speight Ph D D Sc in Natural Gas Second Edition 2019 8 5 1 Iron sponge process An example of a hydrogen sulfide scavenger process is the iron sponge process also called the dry box process which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids Anerousis and Whitman 1984.
Nickel sulfide ores are processed by heap leaching in Sotkama eastern Finland Talvivaara 2011 The process entails the following a open pit mining of 0 2 Ni 0 5 Zn 0 1 Cu and 0 02 Co sulfide ore b four stage crushing c rotary kiln agglomeration with sulfuric acid.
May 08 2015018332Sulfide ore copper mining is a risky type of mining that has never been done before in Minnesota No matter the method sulfide ore copper mines proposed near the Boundary Waters would extract trace amounts of metals from large volumes of rock Rock is blasted from pit walls and sorted into metal bearing ore and waste rock.
An important sulfide mineral common in waste rock is pyrite iron sulfide When pyrite is exposed to air and water it undergoes a chemical reaction called oxidation The oxidation process produces acidic conditions that can inhibit plant growth at the surface of a waste pile.
Nov 27 2011018332Josephine runs the Turner sulfide mine in Oregon What You Can Do Thanks to Wisconsins Prove It First Mining Moratorium sulfide mining is still illegal in the state until companies can find an example of a sulfide mine in the U S or Canada that hasnt polluted during its operation or 10 years since closure and they cant.
In addition to a higher rate of recovery and protecting the environment there are additional benefits of partnering with TCB to process your sulfide ores For companies with platinum group sulfide ore with valuable base metals of nickel cobalt etcin their ores TCB can remove the precious metals and companies can then send the processed.
On the other hand there are alternatives for processing sulfide ores The way the Spanish did it the old patio process is still a possibility for small miners Actually more recently the big mining companies have come around to adopting a modernized use of this ancient practice because its less polluting.
Highly mechanized mining techniques are followed for the mining the mercury containing ores The process of hydrometallurgy can be executed for obtaining the metal which involves leaching the ores and treating the concentrate with sodium hydroxide and sodium sulfide solutions.
Jan 15 2020018332The Boundary Waters Wilderness Protection and Pollution Prevention Act or H R 5598 is aimed only at banning sulfide ore mining within the.
Copper Sulfide Mining and a 2009 spill of 2 million gallons of process water at the Bagdad Mine At 13 of the 14 mines 92 water collection and treatment systems have failed to control contaminated mine seepage resulting in significant water quality impacts.
Jun 20 2019018332When rock extracted in the mining process is exposed to air and water it creates sulfuric acid that can leach heavy metals into water Environmental organizations often refer to copper nickel.
Process Mining the ore 1 The first step in retrieving lead bearing ore is to mine it underground Workers using 3 The principal lead ore galena is properly known as lead sulfide and sulfur makes up a substantial portion of the mineral The flotation process collects the sulfur bearing portions of the ore which also contains the valuable.